GARDENA PowerMax 37/36V P4A Battery Lawnmower Owner’s Manual

June 12, 2024
Gardena

GARDENA logo Operator’s manual
Battery Lawnmower

GARDENA PowerMax 37 36V P4A Battery Lawnmower

Power Max 37/36V P4A
Art. 14638
Translation of the original instructions.

Product liability

In accordance with the German Product Liability Act, we hereby expressly declare that we accept no liability for damage incurred from our products where said products have not been properly repaired by a GARDENA-approved service partner or where original
GARDENA parts or parts authorised by GARDENA were not used.

GARDENA PowerMax 37 36V P4A Battery Lawnmower - Fig 1

SAFETY WARNINGS

1.1 Explanation of the symbols:

| Read operator’s manual.
---|---
|  WARNING – Beware of thrown objects – keep  bystanders away.
|   WARNING – Remove plug from mains before maintenance or if cord is damaged.
|  WARNING – Keep the supply cord away from the blades.
|   WARNING – Keep hands and feet away from the blades. Blades continue to rotate after the motor is switched off.
|  WARNING – Disconnect battery before maintenance.
|  WARNING – Remove the disabling device before maintenance.
|  WARNING – Operate the disabling device before maintenance.

1.2 General safety warnings
1.2.1 General machine safety warnings
WARNING!
Read all safety warnings, instructions, illustrations and specifications provided with this machine. Failure to follow the warnings and instructions may result in electric shock, fire and / or serious injury.
Save all warnings and instructions for future reference.
The term “machine” in the warnings refers to your mains operated (corded) machine or battery operated (cordless) machine.

  1. Work area safety
    a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
    b) Do not operate machines in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Machines create sparks which may ignite the dust or fumes.
    c) Keep children and bystanders away while operating a machine.
    Distractions can cause you to lose control.

  2. Electrical safety
    a) Machine plugs must match the outlet. Never modify the plug in any way. Do not use any adaptor plugs with earthed (grounded) machines. Unmodified plugs and matching outlets will reduce risk of electric shock.
    b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
    c) Do not expose machines to rain or wet conditions.
    Water entering a machine will increase the risk of electric shock.
    d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the machine. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
    e) When operating a machine outdoors, use an extension cord suitable for outdoor use.
    Use of a cord suitable for outdoor use reduces the risk of electric shock.
    f) If operating a machine in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

  3. Personal safety
    a) Stay alert, watch what you are doing and use common sense when operating a machine. Do not use a machine while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating machines may result in serious personal injury.
    b) Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
    c) Prevent unintentional starting. Ensure the switch is in the OFF-position before connecting to power source and / or battery pack, picking up or carrying the machine. Carrying machines with your finger on the switch or energising machines that have the switch on invites accidents.
    d) Remove any adjusting key or wrench before turning the machine on. A wrench or a key left attached to a rotating part of the machines may result in personal injury.
    e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the machine in unexpected situations.
    f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
    g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
    h) Do not let familiarity gained from frequent use of machines allow you to become complacent and ignore machine safety principles. A careless action can cause severe injury within a fraction of a second.

  4. Machine use and care
    a) Do not force the machine. Use the correct machine for your application. The correct machine will do the job better and safer at the rate for which it was designed.
    b) Do not use the machine if the switch does not turn it on and off. Any machine that cannot be controlled with the switch is dangerous and must be repaired.
    c) Disconnect the plug from the power source and / or the battery pack from the machine before making any adjustments, changing acces sories, or storing machines. Such preventive safety measures reduce the risk of starting the machine accidentally.
    d) Store idle machines out of the reach of children and do not allow persons unfamiliar with the machine or these instructions to operate the machine. Machines are dangerous in the hands of untrained users.
    e) Maintain machines. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the machine’s operation. If damaged, have the machine repaired before use. Many accidents are caused by poorly maintained machines.
    f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
    g) Use the machine, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the machine for operations different from those intended could result in a hazardous situation.
    h) Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the machine in unexpected situations.

  5. Battery tool use and care
    a) Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
    b) Use machines only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
    c) When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
    d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
    e) Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
    f) Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C may cause explosion.
    g) Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

  6. Service
    a) Have your machine serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the machine is maintained.
    b) Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorised service providers.

1.2.2 Lawnmower safety warnings
a) Do not use the lawnmower in bad weather conditions, especially when there is a risk of lightning. This decreases the risk of being struck by lightning.
b) Thoroughly inspect the area for wildlife where the lawnmower is to be used. Wildlife may be injured by the lawnmower during operation.
c) Thoroughly inspect the area where the lawnmower is to be used and remove all stones, sticks, wires, bones, and other foreign objects. Thrown objects can cause personal injury.
d) Before using the lawnmower, always visually inspect to see that the blade and the blade assembly are not worn or damaged. Worn or damaged parts increase the risk of injury.
e) Check the grass catcher frequently for wear or deterioration. A worn or damaged grass catcher may increase the risk of personal injury.
f) Keep guards in place. Guards must be in working order and be properly mounted. A guard that is loose, damaged, or is not functioning correctly may result in personal injury.
g) Keep all cooling air inlets clear of debris. Blocked air inlets and debris may result in overheating or risk of fire.
h) While operating the lawnmower, always wear non-slip and protective footwear. Do not operate the lawnmower when barefoot or wearing open sandals. This reduces the chance of injury to the feet from contact with the moving blade.
i) While operating the lawnmower, always wear long trousers. Exposed skin increases the likelihood of injury from thrown objects.
j) Do not operate the lawnmower in wet grass. Walk, never run. This reduces the risk of slipping and falling which may result in personal injury.
k) Do not operate the lawnmower on excessively steep slopes. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
l) When working on slopes, always be sure of your footing, always work across the face of slopes, never up or down and exercise extreme caution when changing direction. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
m) Use extreme caution when reversing or pulling the lawnmower towards you. Always be aware of your surroundings. This reduces the risk of tripping during operation.
n) Do not touch blades and other hazardous moving parts while they are still in motion. This reduces the risk of injury from moving parts.
o) When clearing jammed material or cleaning the lawnmower, make sure all power switches are off and the battery pack is disconnected. Unexpected operation of the lawnmower may result in serious personal injury.
p) When clearing jammed material or cleaning the lawnmower, make sure all power switches are off and remove the safety key. Unexpected operation of the lawnmower may result in serious personal injury. Stop the cutting means if the machine has to be tilted for transportation, when crossing surfaces other than grass and when transporting the machine to and from the area to be used.
Do not tilt the machine when switching on the motor, except if the machine has to be tilted for starting. In this case, do not tilt it more than absolutely necessary and lift only the part which is away from the operator. Stop the machine, remove the safety key and remove the battery, and make sure that all moving parts have come to a complete stop:
– After striking a foreign object, inspect the machine for damage and make repairs before restarting and operating the machine.
– If the machine starts to vibrate abnormally, immediately inspect for damage, replace or repair any damaged parts and check for and tighten any loose parts.

Maintain the mower at regular intervals.
This will extend the working life of the mower.
Only use spare parts recommended by GARDENA.
This is the only way to ensure safe use of the mower.
Be careful during adjustment of the machine to prevent entrapment of the fingers between moving cutting means and fixed parts of the machine.
Always allow the machine to cool down before storing.
When servicing the cutting means be aware that, even though the power source is switched off, the cutting means can still be moved.
We recommend to wear a hearing protection.

1.3 Additional safety warnings
1.3.1 Intended use:
The GARDENA Lawnmower is intended to mow lawn in private domestic gardens and allotments.
The product is not intended for long term use (professional use).

DANGER!
Risk of physical injury!
Do not use the product to cut bushes, hedges, shrubs, to cut of climbers or grass on roofs or balcony boxes, to chop up branches, twigs and to level irregularities in the soil.
Do not use the product on a slope steeper than 20° maximum.

1.3.2 Safety warnings for batteries and chargers

Read all the safety and general instructions.
Failure to observe the safety and general instructions may result in electric shock, fire and / or serious injury.
Store these instructions in a safe place.
Only use the charger if you can fully evaluate all functions and carry them out without restrictions, or if you have received corresponding instructions.
Supervise children during use, cleaning and maintenance.
This will ensure that children do not play with the charger.
  Charge only lithium-ion batteries of the POWER FOR ALL system type PBA 18V with a capacity of 1.5 Ah or more (5 battery cells or more). The battery voltage must match the battery charging voltage of the charger.
Do not charge any non rechargeable batteries. Otherwise there is a risk of fire and explosion.
Do not expose the charger to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Keep the charger clean. Dirt poses a risk of electric shock.
Always check the charger, cable and plug before use. Stop using the charger if you discover any damage. Do not open the charger yourself, and have it repaired only by a qualified specialist using only original replacement parts.
Damaged chargers, cables and plugs increase the risk of electric shock.
Do not operate the charger on an easily ignited surface (e. g. paper, textiles, etc.) or in a flammable environment.
There is a risk of fire due to the charger heating up during operation.
In order to avoid safety hazards, if the power supply cord needs to be replaced, this must be done by GARDENA or by a customer service centre that is authorised to repair GARDENA power tools.
Do not operate the product while it is charging.

Products sold in GB only: Your product is fitted with an BS 1363/A approved electric plug with internal fuse (ASTA approved to BS 1362). If the plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in its place by an authorised customer service agent. The replacement plug should have the same fuse rating as the original plug. The severed plug must be disposed of to avoid a possible shock hazard and should never be inserted into a mains socket elsewhere.
These safety warnings apply only for 18V Li-ion rechargeable batteries for the POWER FOR ALL system.
Use the rechargeable battery only with products from POWER FOR ALL System partners. 18V rechargeable batteries labelled with POWER FOR ALL are fully compatible with the following products: All 18 V products from POWER FOR ALL System partners.
Observe the battery recommendations in the operating manual of your product.
Only this way can the rechargeable battery and the product be operated without danger and the rechargeable batteries protected from hazardous overloading.
  Only charge the batteries using chargers recommended by the manufacturer or by POWER FOR ALL system partners.
A charger that is suitable for one type of battery pack may pose a fire risk when used with different batteries (Battery type: PBA 18V…/compatible chargers: AL 18…).
The battery is supplied partially charged.
To ensure full battery capacity, fully charge the battery in the charger before using your power tool for the first time.
Keep battery packs out of the reach of children.
  Do not open the battery. There is a risk of short-circuiting.
In case of damage and improper use of the battery, vapours may be emitted. The battery can set alight or explode.
Ensure the area is well ventilated and seek medical attention should you experience any adverse effects. The vapours may irritate the respiratory system.
If used incorrectly or if the battery is damaged, flammable liquid may be ejected from the battery. Contact with this liquid should be avoided. If contact accidentally occurs, rinse off with water. If the liquid comes into contact with your eyes, seek additional medical attention.
Liquid ejected from the battery may cause irritation or burns.
If the battery is damaged liquid can be ejected and cover nearby surfaces. Check affected parts.
Clean these parts or change them if necessary.
  Do not short-circuit the battery pack. When the battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another.
Shorting the battery terminals together may cause burns or a fire.
The battery contacts can be hot after use. Be careful of the hot contacts when remove the battery.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.
Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorised service providers.
Protect the battery against heat, e. g. against continuous intense sunlight, fire, dirt, water and moisture.
There is a risk of explosion and short-circuiting.
Only operate and store the battery at an ambient temperature between – 20 °C and + 50 °C.
Do not leave the battery in your car in the summer, for example.
At temperatures of < 0 °C some devices may experience a loss of power.
Only charge the battery at an ambient temperature which is between 0 °C and + 45 °C. Only charge the rechargeable battery with a USB cable at an ambient temperature which is between + 10 °C and + 35 °C.
Charging outside of this temperature range can increase the risk of damage to the battery and pose a fire hazard.
  After use, allow the battery to cool down for at least 30 minutes before charging or storing.

1.3.3 Additional electrical safety warnings
DANGER!
Cardiac arrest!
This product makes an electromagnetic field while it operates. This field may under some conditions interfere with active or passive medical implants. To decrease the risk of conditions that can possibly injure or kill, we recommend persons with medical  implants to speak with their physician and the medical implant manufacturer before you operate the product.
  Disconnect the battery pack when not in use.
Do not use in explosive environment.
Remove the battery in the case of emergency.
Use the safety switch in the case of emergency.
Only use the battery product between 0 °C to 40 °C.
Do not operate the product in rain or wet conditions.
  Protect the battery contacts from moisture.

1.3.4 Additional personal safety warnings
DANGER!
Risk of suffocation!
Small parts can be easily swallowed. There is also a risk that the polybag can suffocate toddlers.
  Keep toddlers away when you assemble the product.
Do not cut grass by pulling the machine towards you.
Keep the air inlets clean with a brush before storage.
Do not reach through openings while using the mower.
Disabled or weak persons should ask a second person for help with the transport (weight).
Do not disassemble the product further than the delivery status.
Use gloves, wear slip resistant shoes and wear eye protection.
Only start the mower with an upright stranded handle.
Do not overload the mower.
Never operate the product when you are tired, ill or under the influence of alcohol, drugs, or medicine.

ASSEMBLY

DANGER!
Cutting injury due to the blade!
Risk of cut injury due to accidental starting.
Use gloves.
Wait for the blade to stop.
Remove the safety key.

2.1 To assemble the handlebar [ Fig. A1 ]:

  1. Fold both levers (S) outwards.
  2. Turn both handlebar holders (2) to the operating position.
  3. Push both levers (S) to the handlebar (1).
  4. Unscrew the two pre-assembled screws (3) from the handlebar holders (2).
  5. Push the handlebar (1) into the handlebar holders (2). Make sure that the handlebar is completely in place and the holes of the handlebar are inline up with the holes of the handlebar holders.
  6. Put both screws (3) in the holes of the openings (2) in the mower.
  7. Tighten both screws (3) with a screwdriver. Make sure that the screws are completely tightened.

2.2 To attach the cable to the handlebar [ Fig. A2 ]:

  Attach the cable (4) to the clamps (5) on the handlebar (1).
Make sure that the cable is not trapped between the handlebar and the mower, otherwise the cable may be damaged.

2.3 To assemble the grass catcher bag [ Fig. A3 ]:

  1. First Push the tongue (6) into the two connectors (7) at the bottom of the grass catcher bag (8) until the connections audibly engages. Make sure that both connectors are engaged.

  2. Then Push the tongue (6) into the connector (9) on the side of the grass catcher bag (8) until the connection audibly engages.
    Make sure that the connector is engaged.

  3. First push the catcher bag handle (10) at the back into the catcher bag cover (11).

  4. Then push the catcher bag handle (10) at the front into the catcher bag cover (11) until the connections audibly engages. Make sure that all connectors are engaged.

OPERATION

DANGER!
Cutting injury due to the blade!
Risk of cut injury due to accidental starting.
Use gloves.
Wait for the blade to stop.
**** Remove the safety key.

3.1 To charge the battery [ Fig. O1 / O2 / O3 ]:
CAUTION!
The voltage of the power source must match the voltage specified on the rating plate of the charger.
**** Note the mains voltage.
For the GARDENA Battery Mower Art. 14638-55 there is no battery and no charger in the scope of delivery.

Thanks to the intelligent charging process, the charge condition of the battery is automatically detected and then charged up with the optimal charge current depending on battery temperature and voltage.
In this way, the battery is treated with care and remains permanently fully charged when it is stored in the charger.

  1. Open the batterie cover (18).

  2. Push the locking button (A) and remove the battery (B) from the battery holder (D).

  3. Connect the battery charger (C) into a mains socket.

  4. Slide the battery (B) onto the battery charger (C).
    When the battery charge indicator (Lc) at the charger blinks green the battery is being charged.
    When the battery charge indicator (Lc) at the charger lights permanently green the battery is completely charged
    (Charging time, see 7. TECHNICAL DATA).

  5. Examine the charge status regularly while you charge.

  6. When the battery (B) is completely charged, the battery (B) can be disconnected from the charger (C).

3.2 Meaning of the indication elements:
3.2.1 Indication on the charger [ Fig. O3 ]:

(Fast) Blinking of the Green Battery Charge Indicator (Lc)| The rapid-charging procedure is indicated by fast blinking of the green battery charge indicator (Lc).
Note: The rapid-charging procedure is only possible when the battery temperature is within the allowable charging temperature range,  see 7. TECHNICAL DATA.
---|---
(Slow) Blinking of the Green Battery Charge Indicator (Lc)| When the charging condition of the battery is 80 %, the green battery charge indicator (Lc) blinks slowly.
The battery can be removed for immediate use.
Continuous Lighting of the Green Battery Charge Indicator (Lc)| Continuous lighting of the green battery charge indicator (Lc) indicates that the battery is fully charged.
When the battery is not inserted, continuous lighting of the battery charge indicator (Lc) indicates that the mains plug is inserted in the  socket outlet and that the battery charger is ready for operation.
Continuous Lighting of the Red Battery
Error Indicator (Wc)| Continuous lighting of the red battery error indicator (Wc) indicates that the temperature of the battery is not within the allowable charging temperature range, see 7. TECHNICAL DATA.
As soon as the allowable charging temperature range is reached, the battery charger automatically switches to rapid charging.
Blinking Red Battery Charge Indicator (Wc)| A blinking red battery error indicator (Wc) indicates a different  malfunction of the charging procedure, see 6. TROUBLESHOOTING.

3.2.2 Battery charge status indication (P) on the product [ Fig. O4 / O8 ]:
After starting the product, the battery charge status indication (P) is displayed for 5 seconds.

Battery charge status indication Battery charge status
(L1), (L2) and (L3) light green 67 – 100 % charged
(L1) and (L2) light green 34 –  66 % charged
(L1) lights green 11 –  33 % charged
(L1) blinks green  0 –  10 % charged

If the LED (L1) blinks green, the battery must be charged.
If the error LED (Wp) is lighting or blinking see 6. TROUBLESHOOTING.

3.2.3 Eco button:
The Eco mode reduces the motor speed to 3100 rpm for a maximum battery lifetime.

3.2.3.1 To activate the Eco mode:
****Push the Eco button (e) on the control panel.
The Eco mode is activated and the LED (Le) lights.

3.2.3.2 To deactivate the Eco mode:
**** Push the Eco button (e) on the control panel.
The Eco mode is deactivated and the LED (Le) is off.

3.3 Working position:
**** Adjust the height of the handlebar so that you are in an upright position when using the mower.

3.3.1 To adjust the handlebar length [ Fig. O5 ]:
The handlebar length can be adjusted to your body height.

  1. Loosen both nuts (16).
  2. Adjust the handlebar (1) to the required length.
  3. Tighten both nuts (16) again.

3.4 To adjust the cutting height [ Fig. O6 ]:
The cutting height can be adjusted from 35 – 65 mm in 4 positions.

3.4.1 To reduce the cutting height:
**** Push the button (19) and push the handle (29) down to reduce the cutting height.

3.4.2 To increase the cutting height:
****Push the button (19) and pull the handle (29) upwards to increase the cutting height.

3.5 To mow with the grass catcher bag [ Fig. O7 ]:
DANGER!
Cutting injury due to the blade!
Risk of cut injury due to accidental starting.
****Do not put your hands in the discharge opening.

3.5.1 To put the grass catcher bag into the mower:

  1. Lift the protective flap (17).

  2. Put the grass catcher bag (8) into the mower by the handle (10).
    Make sure that the grass box is securely connected.

  3. Start the mower.

3.5.2 To empty the grass catcher bag:
The level indicator ö opens during mowing. When it closes during mowing, the grass catcher bag is full.

  1. When the grass catcher bag (8) is full, stop the mower.
  2. Lift the protective flap (17).
  3. Remove the grass catcher bag by the handle (10).
  4. Empty the grass catcher bag (8).

3.6 To start / To stop the mower [ Fig. O1 / O8 ]:
DANGER!
Risk of physical injury!
Risk of injury if the product does not stop when the start lever is released.
Do not bypass the safety devices or switches.
For example do not attach the start lever to the handle.

3.6.1 To start the mower:
The product is provided with a two-handed safety device (start lever and safety interlock) to prevent the product from being turned on by accident.
We recommend using only the 4 Ah batteries P4A PBA 18V/72 (Art. 14905) or larger.
We recommend not to use 2 batteries of different capacity.
The battery with the lower state of charge / lower capacity determines the runtime of the mower.

  1. Open the cover (18) of the battery holder (D).

  2. Put the batteries (B) into the battery holder (D) until they audibly engage.

  3. Put the safety key (20) into the mower and turn it to position 1.

  4. Close the cover (18) of the battery holder (D).

  5. Push the safety interlock (21) with one hand and pull the start lever (22) with the other hand to the handle.
    The mower starts and the battery charge status indication (P) is displayed for 5 seconds.

  6. Release the safety interlock (21).

3.6.2 To stop the mower:

  1. Release the start lever (22).
    The mower stops.

  2. Turn the safety key (20) to position 0 and remove it, to prevent the batteries from discharging.

3.7 Hints to mow:
3.7.1 Hints to use the mower:
If grass residue is left in the discharge opening, pull the mower backwards about 1 m so that the grass residue can drop out downwards.
To produce a well-maintained lawn, we recommend to cut the lawn regularly once a week if possible. The lawn becomes denser if you cut it frequently.
After relatively long cutting intervals (holiday lawn), first of all cut in one direction with the highest cutting height and then cut in the crosswise direction with the required cutting height. This prevents a possible blockage of the blade by too much grass residue.
If possible, only cut the grass when it is dry. If the grass is damp, the cutting pattern will be uneven.

3.7.2 Cutting performance and battery charge:
The lawn area which can be cut on each battery charge depends on several factors such as moisture, grass density and cutting height. In order to ensure an optimal use of space, do not turn the mower on and off too frequently as this severely reduces the battery running time. The cutting performance for each battery charge can be ideally utilised by increasing the cutting height and frequent mowing.
The Eco mode reduces the motor speed to 3100 rpm for a maximum battery lifetime.

3.7.3 Lawn area per battery charge:

2 x System Battery 4.0 Ah max. 350 m²
2 x System Battery 5.0 Ah max. 400 m²
2 x System Battery 6.0 Ah max. 500 m²

MAINTENANCE

DANGER!
Cutting injury due to the blade!

Risk of cut injury due to accidental starting.
Use gloves.
Wait for the blade to stop.
Remove the safety key.
Remove the batteries.

4.1 To clean the mower:
DANGER!
Risk of physical injury!

Risk of injury and risk of damage to the product.
Do not clean the product with water or with a water jet (in particular high-pressure water jet).
Do not clean with chemicals including petrol or solvents.
Some can destroy critical plastic parts.

The airflow slots must always be clean.
****Clean the overside and underside of the mower after each use.

4.1.1 To clean the overside of the mower:

  1. Clean the overside with a damp cloth.
  2. Clean the airflow slots and the grass box with a soft brush (do not use sharp objects).

4.1.2 To clean the underside of the mower [ Fig. M1 ]:

  1. Lay the mower on its side carefully.
  2. Clean the underside, the blade and the discharge opening (23) with a soft brush (do not use sharp objects).

4.1.3 To clean the grass catcher bag:
**** Clean the grass catcher bag with a soft brush (do not use sharp objects).

4.2 To clean the battery and the battery charger:
The surface and the contacts of the battery and the battery charger must  be clean and dry before the battery is connected to the battery charger.
****Do not use running water.

4.2.1 To clean the battery:
****Occasionally clean the ventilation slots and the terminals on the battery using a soft brush that is clean and dry.

4.2.2 To clean the battery charger:
**** Clean the contacts and the plastic parts with a soft and dry cloth.

STORAGE

5.1 To put into storage:
The product must be stored away from children.

  1. Turn the safety key to position 0 and remove it, to prevent the batteries from discharging.
  2. Remove the batteries.
  3. Charge the batteries.
  4. Empty the grass catcher bag.
  5. Clean the mower, the batteries and the battery charger (see 4. MAINTENANCE).
  6. Store the mower, the batteries and the battery charger in a dry, enclosed and frost-free place.

5.1.1 Storage position to save space [ Fig. S1 ]:

  1. Fold both levers (S) outwards.

  2. Fold the handlebar (1) downwards onto the mower.
    Make sure that the cable is not trapped between the handlebar and the mower, otherwise the cable may be damaged.

  3. Push both levers (S) to the handlebar (1).

TROUBLESHOOTING

DANGER!
Cutting injury due to the blade!
Risk of cut injury due to accidental starting.
Use gloves.
Wait for the blade to stop.
Remove the safety key.
Remove the batteries.

6.1 To replace the blade [ Fig. T1 / T2 ]:
DANGER!
Risk of physical injury!
Risk of cutting injuries if a damaged or bent knife or one with unbalanced or chipped cutting edges rotates.
Do not use the mower when the blade is damaged, bent, out of balance or has chipped edges.
Do not regrind the blade.
The GARDENA spare parts are available from your GARDENA dealer or from the GARDENA service.
****Only use an original GARDENA Replacement blade Art. 4103
For safety reasons, we recommend that the blade be replaced by GARDENA Service or by an authorised GARDENA dealer.

  1. Insert a screwdriver into one of the provided holes at the bottom of the housing (28).
    The screwdriver thus serves as a stop for the blade.

  2. Unscrew the blade bolt (25).
    Make sure that the spacer (24) is not damaged when applying the force.

  3. Remove the blade bolt (25) and the washer (26).

  4. Remove the blade (27).

  5. Put the new blade (27) on the mower. The inscription on the knife (this side to grass) must be visible.

  6. Put the washer (26) and the blade bolt (25) on the mower.

  7. Screw the new blade (27) tight with the blade bolt (25) (tightening torque is 15 – 20 Nm). Do not over-torque.
    Make sure that the spacer (24) is not damaged when applying the force.

  8. Pull the screwdriver out of the mower.
    Make sure that the screwdriver is removed before restarting the mower again.

6.2 Troubleshooting table:

Problem Possible Cause Remedy
Motor is blocked Obstacle blocks the motor. ****Remove the obstacle.
Cutting height is too low. ****Increase the cutting height.
Loud noises, the mower is rattling Screws on motor, its fixing or on the
mower chasing are loose. **** Let the screws be tightened by an authorised

specialist dealer or the GARDENA Service.
Mower runs unevenly or vibrates strongly| Blade is damaged or worn.| Replace the blade.
Blade bolt is released.|
Tighten the blade bolt.
Blade is very dirty.| Clean the mower. If this does not solve the problem, contact the GARDENA Service.
Lawn is not cleanly mowed| Blade is blunt or damaged.|
Replace the blade.
Cutting height is too low.| Increase the cutting height.
Mower does not start or  stops.
LED (L1) blinks green [ Fig. O4 ]| Battery is empty.|
Charge the battery.
Mower does not start or stops.
Error-LED (Wp) lights red [ Fig. O4 ]| Battery temperature is outside the permissible temperature
range.| Wait until the battery  temperature is between 0 °C – + 45 °C again.
There are drops of water or moisture between the battery contacts.|
Remove the water drops or moisture with a dry cloth.
Obstacle blocks the motor.| Remove the obstacle.
Mower does not start or stops.
Error-LED (Wp) blinks red [ Fig. O4 ]| Mower is defective.|
Contact the GARDENA Service.
Mower does not start or stops.
Error-LED (Wp) does not  light [ Fig. O4 ]| Battery is not put completely into the battery holder.| Put the battery completely into the battery holder until
it audibly engages.
Safety key is not turned to position 1.|
Turn the safety key to position

  1. Battery is defective.| Replace the battery.
    Mower is defective.|
    Contact the GARDENA Service.
    Charging is not possible.
    Battery charge indicator (Lc) lights continuously green.
    Battery error indicator (Wc) blinks red.
    [ Fig. O3 ]| Battery is not slid onto the charger correctly.| Slide the battery onto the charger correctly.
    Battery contacts are dirty.|
    Clean the battery contacts (e. g. by connecting and disconnecting the battery several  times. Replace the battery
    if necessary.
    Battery temperature is outside the permissible temperature
    range.| Wait until the battery  temperature is between 0 °C – + 45 °C again.
    Battery is defective.|
    Replace the battery.
    Charging is not possible.
    Battery charge indicator (Lc) does not light / Battery error indicator (Wc) does not light [ Fig. O3 ]| Mains plug of the charger is not plugged in correctly.| Insert the mains plug completely into the mains socket.
    Mains socket, mains cable or charger is defective.|
    Check the mains voltage.
    Let the charger be checked if necessary by an authorised specialist dealer or the GARDENA Service.

NOTE:
Repairs must only be done by the GARDENA service departments or specialist dealers approved by GARDENA.

****For any other malfunctions please contact the GARDENA service department.

TECHNICAL DATA

Battery Lawnmower Unit Value (Art. 14638)
Speed of rotation culling blade/ Eco mode rpm 3500/ 3100
Cutting width cm 37
Cutting height adjustment (4 positions) mm 35 — 65
Volume of grass catcher bag I 45
Weight (without Battery) kg 13.9

Sound pressure level LpA 1)
Uncertainty kpA| dB (A)| 80
3
Sound power level LWA 2) :
measured / guaranteed Uncertainty kWA| dB (A)| 91/93
1.2
Hand/arm vibration avhw 1)
Uncertainty kvhw| m/s2| ≤2.5
1.5

Measuring process complying with: 1) EN IEC 62841-4-3 2) RL 2000/14/EC / S.I. 2001 No.1701

NOTE: The stated vibration emission value has been measured according to a standardised test procedure and can be used for comparison of one electric power tool with another. It can also be used for preliminary evaluation of exposure. The vibration emission value can vary during actual use of the electric power tool depending on the ways in which the machine is used. As a safety measure, you should work with the machine for a maximum of 1 hour without interruption.

System Battery PBA 18V 4.0Ah W-C Unit Value (Art. 14905)
Battery voltage V (DC) 18
Battery capacity Ah 4
Number of cells (Li-Ion) 10
Appropriate POWER FOR ALL system Battery Chargers AL 1810 CV / AL 1815 CV /

AL 18V-20 /
AL 1830 CV / AL 1880 CV
Battery Charger AL 1830 CV P4A| Unit| Value (Art. 14901)
---|---|---
Mains voltage| V (AC)| 220 – 240
Mains frequency| Hz| 50 – 60
Rated power| W| 26
Battery charging voltage| V (DC)| 14.4 – 18
Max. battery charging current| A| 3
Battery charging time 80 % /97 – 100 % (approx.)
PBA 18V 2.0Ah W-B
PBA 18V 2.5Ah W-B
PBA 18V 4.0Ah W-C| min.
min.
min.| 32 / 45
40 / 60
64 / 95
Permitted charging temperature range| °C| 0 – 45
Weight according to EPTA-Procedure 01:2014| kg| 0.17
Protection class| |
Appropriate POWER FOR ALL system Batteries| | PBA 18V

ACCESSORIES / SPARE PARTS

GARDENA Replacement Blade As replacement for blunt blade. Art. 4103

GARDENA System Battery
P4A PBA 18V/45
P4A PBA 18V/72| Battery for additional duration or for replacement.| Art. 14903
Art. 14905
GARDENA Battery Quick Charger AL 1830 CV P4A| Charger for fast charging the POWER FOR ALL
System Batteries PBA 18V..W-..| Art. 14901

SERVICE

Please contact the address on the enclosed warranty card.

DISPOSAL

10.1 Disposal of the mower
(according to Directive 2012/19/EU / S.I. 2013 No. 3113):
** The product must not be disposed of to normal household waste. It must be disposed of in line with local environmental regulations.
IMPORTANT!
**
Dispose of the product through or via your local recycling collection centre.

10.2 Disposal of the battery:
The battery contains lithium-ion cells that should not be disposed of with normal household waste at the end of its life.
Li-ion
IMPORTANT!

  1. Discharge the lithium-ion cells completely (contact the GARDENA Service).
  2. Protect the contacts on the lithium-ion cells against short circuits.
  3. Dispose of the lithium-ion cells properly via or through your local recycling collection centre.

EC Declaration of Conformity
The undersigned hereby certifies as the authorized representative of the manufacturer, GARDENA Germany AB, PO Box 7454, S-103 92, Stockholm, Sweden, that, when leaving our factory, the unit(s) indicated below is / are in accordance with the harmonized EU guidelines, EU standards of safety and product specific standards. This certificate becomes void if the unit(s) is / are modified without our approval.

UKCA Declaration of Conformity
The manufacturer: GARDENA Germany AB, PO Box 7454, S-103 92 Stockholm, Sweden hereby  certifies, when  leaving our factory, the unit(s)  indicated below is / are in accordance with the UK Regulations, designated standards of safety and product specific designated standards.
This certificate becomes void if the units are modified without our approval.

Description of the product:| Battery Lawnmower
Product type:| PowerMax 37/36V P4A
Article number:| 14638
UK regulations:| S.I. 2008/1597
S.I. 2016/1091
S.I. 2012/3032
S.I. 2001/1701
Charger:
S.I. 2016/1101
Designated standards:| EN ISO 12100
EN 62841-1
EN IEC 62841-4-3
Charger:
EN 60335-1
EN IEC 60335-2-29
Conformity assessment body| Intertek Testing & Certification Ltd.
Academy Place, 1 – 9 Brook Street  Brentwood, Essex
CM14 5NQ
United Kingdom
Approved Body Number: 0359
Number of notified body:| 359
Authorised representative:| Husqvarna UK Limited Preston Road Aycliffe
County Durham
UK DL5 6UP
Deposited documentation:| GARDENA Technische Dokumentation
M. Jäger
89079 Ulm
Noise level: measured / guaranteed| 91 dB(A) / 93 dB(A)
Conformity assessment according to:| According to S.I. 2001/1701 Art. 11 Schedule 9
Ulm, 30.09.2022 Authorised Representative:| GARDENA PowerMax 37 36V P4A
Battery Lawnmower - Signature 1

GARDENA logo Deutschland / Germany
GARDENA Manufacturing GmbH Central Service
Hans-Lorenser-Straße 40 D-89079 Ulm
Produktfragen: (+49) 731 490-123
Reparaturen: (+49) 731 490-290
service@gardena.com
http://www.gardena.com

Service Address and Importer to Great Britain
Husqvarna UK Ltd Preston Road
Aycliffe Industrial Park Newton Aycliffe County Durham DL5 6UP
Phone: (+44) (0) 344 844 4558
info.gardena@husqvarna.co.uk
14638-20.960.03.indd 182
25.07.22 11:02

Documents / Resources

| GARDENA PowerMax 37/36V P4A Battery Lawnmower [pdf] Owner's Manual
14638, PowerMax 37 36V P4A, Battery Lawnmower, PowerMax 37 36V P4A Battery Lawnmower, Lawnmower
---|---
| GARDENA PowerMax 37/36V P4A Battery Lawnmower [pdf] Owner's Manual
14638, PowerMax 37 36V P4A, Battery Lawnmower, PowerMax 37 36V P4A Battery Lawnmower, Lawnmower

References

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