milwaukee M18 FHS20 FUEL Hatchet Pruning Saw User Manual

milwaukee M18 FHS20 FUEL Hatchet Pruning Saw

User Manual

TECHNICAL DATA

M18 FHS20

• Type Pruning saw

• Battery voltage 18 V

• No-load chain speed 5.0 m/s

• Max bar length 8 in. / 200 mm

• Usable cutting length 7.5 in. / 190 mm

• Chain Pitch 9.5 mm (3/8”)

• Chain Gauge 1.1 mm (0.043”)

• Drive Link 33

• Chain oil tank capacity 77 ml

• Weight (product only) 2.20 kg

• Weight according EPTA-Procedure 01/2014
  (Li-Ion 2.0 Ah – 12.0 Ah) 2.74 – 3.85 kg

• Recommended ambient operating temperature -18 – +50 °C

• Recommended battery types M18B…, M18HB…

• Recommended charger M12-18…, M18 DFC

Noise information
Noise emission values determined according to EN 62841

• A-weighted sound pressure level 83.3 dB (A)
• Uncertainty K 3.0 dB (A)
• A-weighted sound power level 94.3 dB (A)
• Uncertainty K 3.0 dB (A)

Always wear ear protectors.

Vibration information
Total vibration values (vector sum in the three axes) determined according to EN 62841

• Vibration emission value ah
• Main handle 10.7 m/s2
• Auxiliary handle 12.5 m/s2
• Uncertainty K 1.50 m/s2

WARNING!
The declared vibration total values and the declared noise emission values given in this instruction manual have been measured in accordance with a standardized test given in EN 62841 and may be used to compare one tool with another. They may be used for a preliminary assessment of exposure.
The declared vibration and noise emission values represent the main applications of the tool. However, if the tool is used for different applications, used with different accessories, or poorly maintained, the vibration and noise emission may differ. These conditions may significantly increase the exposure levels over the total working period.
An estimation of the level of exposure to vibration and noise should take into account the times when the tool is turned off or when it is running idle. These conditions may significantly reduce the exposure level over the total working period.
Identify additional safety measures to protect the operator from the effects of vibration and noise, such as maintaining the tool and the accessories, keeping the hands warm, and organizing work patterns.

WARNING! Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fi re and/or serious injury.
Save all warnings and instructions for future reference.

GENERAL PRUNING SAW SAFETY WARNINGS

Keep all parts of the body away from the saw chain when the pruning saw is operating. Before you start the pruning saw, make sure that the saw chain is not contacting anything. A moment of inattention while operating pruning saws may cause entanglement of your clothing or body with the saw chain.
Always hold the pruning saw with your right hand on the rear handle and your left hand on the front handle. Holding the pruning saw with a reversed hand configuration increases the risk of personal injury and should never be done.
Hold the pruning saw by insulated gripping surfaces only, because the saw chain may contact hidden wiring. Saw chains contacting a “live” wire may make exposed metal parts of the pruning saw “live” and could give the operator an electric shock.
Wear eye protection. Further protective equipment for hearing, head, hands, legs, and feet is recommended. Adequate protective equipment will reduce personal injury from flying debris or accidental contact with the saw chain.
Do not operate a pruning saw in a tree, on a ladder, from a rooftop, or any unstable support. Operation of a pruning saw in  this manner could result in serious personal injury.
Always keep proper footing and operate the pruning saw only when standing on fixed, secure, and level surface. Slippery or unstable surfaces may cause a loss of balance or control of the pruning saw.
When cutting a limb that is under tension, be alert for spring back. When the tension in the wood bores is released, the spring-loaded limb may strike the operator and /or throw the pruning saw out of control.
Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.
Carry the pruning saw by the front handle with the pruning saw
switched off and away from your body. When transporting or storing the pruning saw, always fi t the guide bar cover. Proper handling of the pruning saw will reduce the likelihood of accidental contact with the moving saw chain.
Follow instructions for lubricating, chain tensioning, and changing the bar and chain. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.
Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
Cut wood only. Do not use the product for purposes not intended. For example, do not use the product for cutting metal, plastic, masonry, or non-wood building materials. Use of the
product for operations different than the intended use could result in a hazardous situation.
Follow all instructions when clearing jammed material, storing, or servicing the product. Make sure that the switch is turned
off and the battery pack is removed. Unexpected actuation of the product while clearing jammed material or servicing may result in serious personal injury.

CAUSES AND OPERATOR PREVENTION OF KICKBACK

Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse reaction, kicking the guide bar up and back towards the operator.
Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of the saw which could result in serious personal injury.
Do not rely exclusively upon the safety devices built into your saw.
As a pruning saw user, you should take several steps to keep your cutting jobs free from accident or injury.
Kickback is the result of pruning saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

• Maintain a firm grip, with thumbs and fingers encircling the pruning saw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let go of the pruning saw.
• Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the pruning saw in unexpected situations.
• Only use replacement guide bars and chains specified by the manufacturer. Incorrect replacement guide bars and chains may cause chain breakage and/or kickback.
• Follow the manufacturer’s sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

ADDITIONAL SAFETY AND WORKING INSTRUCTIONS

It is recommended to cut logs on a sawhorse or cradle when operating the product for the first time.
Ensure that all the guards, handles, and spiked bumper are properly fitted and are in good condition.
Persons using the product should be in good health. The product is heavy, so the operator must be physically fi t.
The operator should be alert, have good vision, mobility, balance, and manual dexterity. If there is any doubt, do not operate the product.
Do not start using the product until you have a clear work area, secure footing, and a planned retreat path away from a falling tree. Beware of the emission of lubricant mist and saw dust. Wear a mask or respirator, if required.
Do not cut vines or small undergrowth.
Always hold the product with both hands during operation. Use a firm grip with thumbs and fingers encircling the product handles. The right hand must be on the rear handle and the left hand on the front handle.
Before starting the product, make sure that the product is not contacting any object.
Do not modify the product in any way or use it to power any attachments or devices not recommended by the manufacturer for the product.
There should be a first-aid kit containing large wound dressings and a means to summon attention (e.g., whistle) close to the operator. A larger more comprehensive kit should be reasonably nearby.
An incorrectly tensioned chain can jump off the guide bar and could result in serious injury or fatality. The length of the chain depends on the temperature. Check the tension frequently.
Get used to the product by making simple cuts on a securely supported wood. Do this whenever you have not operated the saw for some time. To reduce the risk of injury associated with contacting moving parts, always turn off the product, remove the battery pack, and make sure that all moving parts have come to a stop:

• before cleaning or clearing a blockage
• before leaving the product unattended
• before installing or removing attachments
• before checking, conducting maintenance, or working on the product

The size of the work area depends on the job being performed and the size of the tree or work piece involved. For example, felling a tree requires a larger work area than making other cuts, i.e., bucking cuts, etc. The operator needs to be aware and in control of everything happening in the work area.
Do not cut with your body in line with the guide bar and chain. If you experience kickback, this helps prevent the chain coming into contact with your head or body.
Do not use a back-and-forward sawing motion, let the chain do the work. Keep the chain sharp and do not try to push the chain through the cut.
Do not put pressure on the product at the end of the cut. Be ready to take on the weight of the product as it cuts free from the wood. Failure to do so could result in possible serious personal injury.
Do not stop the product in the middle of a cutting operation.
Keep the product running until it is already removed from the cut.
Do not fi x the on/off switch in the on position when using the product hand- held.
Remove the battery pack before starting any work on the product.

TETHERING
For tethering, use a dynamic climbing rope or energy absorbing lanyards only. Do not hang the product from the guide bar cover.

PUSH AND PULL
The reaction force is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the tendency for the product to pull away (forward motion) when cutting on the bottom edge of the bar and the push backwards (towards the operator) when cutting along the top edge.

SAW JAMMED IN THE CUT
Turn off the product, engage the chain brake, and remove the battery pack. Do not try to force the chain and bar out of the cut as this is likely to break the chain, that may swing back and strike the operator. This situation normally occurs because the wood is incorrectly supported that forces the cut to close under compression, thereby pinching the blade. If adjusting the support does not release the bar and chain, use wooden wedges or a lever to open the cut and release the saw. Never try to turn on the product when the guide bar is already in a cut or kerf.

SKATING / BOUNCING
When the product fails to dig in during a cut, the guide bar can begin hopping or dangerously skidding along the surface of the log or branch, possibly resulting in the loss of control of the product. To prevent or reduce skating or bouncing, always use the product with both hands make sure that the saw chain establishes a groove for cutting. Never cut small, flexible branches, or brushes with the product. Their size and flexibility can easily cause the saw to bounce towards you or bind up with enough force to cause a kickback. The best tool for that kind of work is a hand saw, pruning shears, an axe or other hand tools.

PERSONAL PROTECTIVE EQUIPMENT
Wear a helmet at all times when operating the product. A helmet, equipped with mesh visor, can help reduce the risk of injury to the face and the head if kickback occurs. Wear ear protectors.
Good quality personal protective equipment, as used by professionals, helps reduce the risk of injury to the operator.
The following items should be used when operating the product:

SAFETY HELMET
Should comply with EN 397 and be CE marked.

HEARING PROTECTION
Should comply with EN 352-1 and be CE marked.

EYE AND FACE PROTECTION
Should be CE marked and comply with EN 166 (for safety glasses) or EN 1731 (for mesh visors).

GLOVES
Should comply with EN381-7 and be CE marked.

LEG PROTECTION (CHAPS)
Should comply with EN 381-5, be CE marked and provide all-round protection.

PRUNING SAW SAFETY BOOTS
Should comply with EN ISO 20345:2004 and be marked with a shield depicting a pruning saw to show compliance with EN 381-3. (Occasional users may use steel toe-cap safety boots with protective gaiters that conform to EN 381-9 if the ground is even and there is little risk of tripping or catching on undergrowth.)

PRUNING SAW JACKETS FOR UPPER BODY PROTECTION
Should comply with EN 381-11 and be CE marked.

KNOW YOUR PRODUCT

1. Front handle
2. Front hand guard
3. Lock-off device
4. Power switch
5. Rear handle
6. Chain lubricant cap
7. Chain oil tank
8. Rear hand guard
9. Combination wrench
10. Battery pack
11. Spiked bumper
12. Saw chain
13. Guide bar
14. Bar groove
15. Chain drive
16. Drive sprocket cover
17. Chain tension screw
18. Bar mounting nut
19. Guide bar cover

WARNING! Consequences of improper maintenance, removal, or modification of safety features, ignition switch, hand guard (front and back), spiked bumper, chain catcher, guide bar, low kick-back saw chain may cause the safety features to not function correctly, thus increasing the potential for serious injury.

SPIKED BUMPER
The integral bumper spike may be used as a pivot when making a cut. It helps to keep the body of the product steady while cutting. When cutting, push the product forward until the spikes dig into the edge of the wood, then by moving the rear handle up or down in the direction of the cutting line it can help ease the physical strain of cutting.

GUIDE BAR
Generally, guide bars with small radius tips have somewhat lower potential for kickback. You should use a guide bar and a matching chain that is just long enough for the job. Longer bars increase the risk of loss of control during sawing. Regularly check the chain tension. When cutting smaller branches (less than the full length of  the guide bar) the chain is more likely to be thrown off if the tension is not correct.

INSTRUCTIONS CONCERNING THE PROPER TECHNIQUES FOR BASIC FELLING, LIMBING,

AND CROSS-CUTTING

UNDERSTANDING THE FORCES WITHIN THE WOOD

When you understand the directional pressures and stresses inside the wood you can reduce the pinches or at least expect them during your cutting. Tension in the wood means that the bores are being pulled apart and if you cut in this area, the kerf or cut will tend to open as the product goes through. If a log is being supported on a sawhorse and the end is hanging unsupported over the end, tension is created on the upper surface due to the weight of the overhanging log stretching the bores. Likewise, the underside of the log will be in compression and the bores are being pushed together. If a cut is made in this area, the kerf has the tendency to close up during the cut. This would pinch the blade.

LIMBING A TREE

Lambing is removing the branches from a fallen tree. When lambing,
leave the larger lower limbs to support the log off the ground. Remove the small limbs in one cut. Branches under tension should be cut from the bottom up to avoid binding the product.

CUTTING THE SPRINGPOLES

A spring pole is any log, branch, rooted stump, or sapling that is bent under tension by other wood so that it springs back if the wood holding it is cut or removed.
On a fallen tree, a rooted stump has a high potential of springing back to the upright position during the bucking cut to separate the log from the stump. Watch out for spring poles, they are dangerous.
WARNING! Spring poles are dangerous and could strike the operator, causing the operator to lose control of the product. This could result in severe or fatal injury to the operator. This should be done by trained users.

SPECIFIED CONDITIONS OF USE

The product is intended for outdoor use only.
For safety reasons, the product must be adequately controlled by using a two- handed operation at all times.
The product is designed for cutting branches, trunks, logs, and beams of a diameter determined by the cutting length of the guide bar. It is designed to cut wood only. It is to be used by adults who have received adequate training on the hazards and preventative measures/actions to be taken while using the product only.
Do not use the product for any purpose not listed in the specified conditions of use. It is not to be used for professional tree services. The product is not to be used by children or by persons not wearing adequate personal protective equipment and clothing.
WARNING! When using the product, the safety rules must be followed. For safety of the operator and that of the bystanders, read and fully understand these instructions before operating the product. Attend a professionally organized safety course in the use, preventative actions, first aid, and maintenance of pruning saws. Keep these instructions safe for later use.
WARNING! Pruning saws are potentially dangerous tools. Accidents involving the use of pruning saws often result in loss of limbs or death. It is not just the pruning saw that is the hazard. Falling branches, toppling trees, and rolling logs can all kill. Diseased or rotting timber poses additional hazards. Assess your capability of completing the task safely. If there is any doubt, leave it to a professional tree surgeon.
Do not use the product for any other purpose.

RESIDUAL RISK

Even when the product is used as prescribed, it is still impossible to completely eliminate certain residual risk factors. The following hazards may arise during use and the operator should pay special attention to avoid the following:

• injury caused by vibration
  • Always use the right tool for the job.
  • Hold the product by designated handles and restrict working time and exposure.
• hearing injury caused by exposure to noise
  • Restrict exposure and wear appropriate hearing protection
• injury caused by contact with exposed saw teeth of the chain
• injury caused by thrown-out pieces of the workpiece (wood chips, splinters)
• injury caused by dust and particles
• injury to the skin caused by contact with lubricants
• injury caused by parts ejected from the saw chain (cutting/injection hazards)
• injury caused by unforeseen, abrupt movement, or kickback of the guide bar (cutting hazards)

RISK REDUCTION
It has been reported that vibrations from handheld tools may contribute to a condition called Raynaud’s Syndrome in certain individuals. Symptoms may include tingling, numbness, and blanching of the fingers, usually apparent upon exposure to cold. Hereditary factors, exposure to cold and dampness, diet, smoking, and work practices are all thought to contribute to the development of these symptoms. There are measures that can be taken by the operator to possibly reduce the effects of vibration:

• Keep your body warm in cold weather. When operating the product wear gloves to keep the hands and wrists warm.
• After each period of operation, exercise to increase blood circulation.
• Take frequent work breaks. Limit the amount of exposure per day.
• Protective gloves available from professional pruning saw retailers are designed specifically for the pruning saw use that give protection, good grip, and reduce the effect of handle vibration. These gloves should comply with EN 381-7 and must be CE marked.

If you experience any of the symptoms of this condition, immediately discontinue use and see your doctor.
WARNING! Injuries may be caused, or aggravated, by prolonged use of a tool. When using any tool for prolonged periods, ensure you take regular breaks.

BATTERIES

Battery packs that have not been used for some time should be recharged before use.
Temperatures in excess of 50°C reduce the performance of the battery pack. Avoid extended exposure to heat or sunshine (risk of overheating).
The contacts of the chargers and battery packs must be kept clean.
For an optimum lifetime, the battery packs have to be fully charged after use.
To obtain the longest possible battery life, remove the battery pack from the charger once it is fully charged.
For battery pack storage longer than 30 days:

• Store the battery pack where the temperature is below 27°C and away from moisture.
• Store the battery packs in a 30% – 50% charged condition.
• Every six months of storage, charge the pack as normal.

Do not dispose of used battery packs in the household refuse or by burning them. MILWAUKEE distributors off er to retrieve old batteries to protect our environment.
Do not store the battery pack together with metal objects (short circuit risk).
Use only M18 System chargers for charging M18 System battery packs. Do not use battery packs from other systems.
Never break open battery packs and chargers, and store them only in dry rooms. Keep the battery packs and chargers dry at all times.
Battery acid may leak from damaged batteries under extreme load or extreme temperatures. In case of contact with battery acid, wash it off immediately with soap and water. In case of eye contact, rinse thoroughly for at least 10 minutes and immediately seek medical attention.
No metal parts must be allowed to enter the battery section of the charger (short circuit risk).

ADDITIONAL BATTERY SAFETY WARNINGS

WARNING! To reduce the risk of fi re, personal injury, and product damage due to a short circuit, never immerse the product, battery pack, or charger in fl uid or allow fl uid to fl ow inside them. Corrosive or conductive fluids, such as seawater, certain industrial chemicals, and bleach or bleach-containing products, etc., can cause a short circuit.

BATTERY PACK PROTECTION
In extremely high torque, binding, stalling, and short circuit situations that cause high current draw, the product vibrates for about 5
seconds, the fuel gauge fl ashes, and then the product turns off . To reset, release the trigger.
Under extreme circumstances, the internal temperature of the battery pack could raise too much. If this happens, the fuel gauge
fl ashes until the battery pack cools down. After the lights go off, continue working.

TRANSPORTING LITHIUM BATTERIES

Lithium-ion batteries are subject to the Dangerous Goods Legislation requirements.
Transportation of those batteries has to be done in accordance with local, national, and international provisions and regulations.

• Batteries can be transported by road without further requirements.
• Commercial transport of lithium-ion batteries by third parties is subject to Dangerous Goods Regulations. Transport preparation and transport are exclusively to be carried out by appropriately trained persons and the process has to be accompanied by corresponding experts.

When transporting batteries:

• Ensure that the battery contact terminals are protected and insulated to prevent short circuit.
• Ensure that the battery pack is secured against movement within the packaging.
• Do not transport batteries that are cracked or leaking.
• Check with the forwarding company for further advice.

WORKING INSTRUCTIONS

ASSEMBLY

ASSEMBLING THE SAW CHAIN AND GUIDE BAR
WARNING! If any parts are damaged or missing do not operate the product until the parts are replaced. Failure to heed this warning could result in serious personal injury.
Make sure to remove the battery pack. Wear gloves.

1. Remove the bar mounting nut using the combination wrench.
2. Remove the drive sprocket cover.
3. Place the chain in the correct direction onto the bar and make sure that the drive links are aligned in the bar groove.
4. Attach the bar to the pruning saw and loop the chain around the drive sprocket.
5. Reinstall the drive sprocket cover and bar mounting nut.
6. Finger-tighten the bar mounting nut. The bar must be free to move for the chain tension adjustment.
7. Adjust the chain tension. Refer to the “Adjusting chain tension” section.
8. Hold the tip of the guide bar up and tighten the bar mounting nut securely.

ADJUSTING THE CHAIN TENSION

1. Remove the battery pack before you do any work on the product.
2. To increase the chain tension, turn the chain tensioning screw clockwise and check the chain tension frequently.
3. To reduce the chain tension, turn the chain tensioning screw counterclockwise and check the chain tension frequently.
4. The chain tension is correct when the gap between the cutter in the chain and the bar is about 6.8 mm.
5. Pull the chain in the middle of the lower side of the bar downwards (away from the bar) and measure the distance between the bar and the chain cutters. Tighten the bar mounting nut by turning it counterclockwise.

NOTE: Do not over-tension the chain. Excess tension causes excessive wear and reduces the life of the chain and could damage the bar. New chains could stretch and loosen during initial use. Remove battery pack and check chain tension frequently during the first two hours of use. The temperature of the chain increases during normal operation causing the chain to stretch. Check the chain tension frequently and adjust as required. A chain tensioned while warm may be too tight upon cooling. Make sure that the chain tension is correctly adjusted as specified in these instructions.

OPERATION

ADDING THE CHAIN LUBRICATING OIL

WARNING! Never work without the chain lubricant. If the saw chain is running without lubricant, the guide bar and the saw chain can be damaged. It is essential to frequently check the oil level in the oil level gauge and before using the product.
Keep the reservoir more than ¼ full to ensure sufficient oil is available for the job.
NOTE: Use a vegetable-based chain oil when pruning trees. Mineral oil may harm trees. Never use waste oil, automotive oil, or very thick oils. These could damage the product. Clear the surface around the oil cap to prevent contamination.

1. Loosen and remove the cap from the oil tank.
2. Pour the oil into the oil tank and monitor the oil level gauge.
3. Put the oil cap back on and tighten it up. Wipe away any spillage.

HOLDING THE PRODUCT

Always hold the product with your right hand on the rear handle and your left hand on the front handle. Grip both handles with the thumbs and fingers encircling the handles.

STARTING THE PRODUCT
Before starting the product, install the battery pack in the product.

RESTART PROTECTION

The product is supplied with a restart protection.
This prevents the switched-on product from starting by itself when
the battery pack is inserted and from restarting after a switch-off function of the battery pack.
If the guide bar is outside of the wood, turn off the product and turn it on again to continue working.
If the guide bar is inside of the wood wait until the saw chain comes to a complete stop. Make sure that the switch is in the off position.
Remove the battery pack from the product and the guide bar from the cut. Insert the battery pack and then turn on the product again to continue working.

TRANSPORTATION AND STORAGE

Always lightly oil the chain when storing the product to prevent rust. Always empty the oil tank when storing to prevent leakage.
Turn off the product, remove the battery pack, and allow it to cool before storing or transporting.
Remove all foreign materials from the product. Store the product in a cool, dry, and well-ventilated place that is inaccessible to children. Keep away from corrosive agents, such as garden chemicals and de-icing salts. Do not store the product outdoors.
Fit the guide bar cover before storing the product or during transportation.
For transportation in vehicles, secure the product against movement or falling to prevent injury to persons or damage to the product.

CLEANING

Clean dust and debris from openings. Keep the handle clean, dry, and free of oil or grease. Use only mild soap and a damp cloth to clean, since certain cleaning agents and solvents are harmful to plastics and other insulated parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household detergents containing ammonia. Never use flammable or combustible solvents around tools.

MAINTENANCE

WARNING! Use only MILWAUKEE accessories and MILWAUKEE spare parts. Failure to do so can cause possible injury, contribute to poor performance, and may void your warranty.
Use only MILWAUKEE accessories and MILWAUKEE spare parts. Should components that have not been described need to be replaced, contact one of our MILWAUKEE service centers (see our list of guarantee or service addresses).
WARNING! Servicing requires extreme care and knowledge and should be performed only be a qualified service technician. For service, bring the product to the nearest MILWAUKEE service station for repair. When servicing, use only identical replacement parts.
WARNING! Remove the battery pack before adjusting, maintaining, or cleaning the product. Failure to do so could result in serious personal injury. Make adjustments or repairs described in this manual only. For other repairs, contact an authorized service center.
Consequences of improper maintenance may cause safety features to not function correctly, thus increasing the potential for serious injury.
Keep the product professionally maintained and safe.
Sharpening the chain safely is a skilled task. Therefore, the manufacturer strongly recommends that a worn or dull chain is replaced with a new one, available at a MILWAUKEE service center. The part number is available in the product specification table in this manual.
Follow instructions for lubricating and chain tension checking and adjustment.
After each use, clean the product with a soft, dry cloth. Remove any chips, dirt, and debris in the battery bay.
Check all nuts, bolts, and screws at frequent intervals for security to ensure the product is in a safe working condition. Any part that is damaged should be properly repaired or replaced by a MILWAUKEE service center.

REPLACING THE GUIDE BAR AND SAW CHAIN

Wear protective gloves.

1. Remove the bar mounting nut using the combination wrench.
2. Remove the drive sprocket cover.
3. Place the new chain in the correct direction onto the bar and make sure that the drive links are aligned in the bar groove.
4. Attach the bar to the pruning saw and loop the chain around the drive sprocket.
5. Reinstall the drive sprocket cover and bar mounting nut.
6. Finger-tighten the bar mounting nut. The bar must be free to move for chain tension adjustment.
7. Adjust the chain tension. Refer to the “Adjusting chain tension” section.
8. Hold the tip of the guide bar up and tighten the bar mounting nut securely.

WARNING! A dull or improperly sharpened chain can cause excessive motor speed during cutting that may result in severe motor damage.
WARNING! Improper chain sharpening increases the potential of kickback.
WARNING! Failure to replace or repair a damaged chain can cause serious injury.
WARNING! The saw chain is sharp. Always wear protective gloves when performing maintenance to the chain.

GUIDE BAR MAINTENANCE

When the guide bar shows signs of wear, fl ip the guide bar from bottom to top on the saw to distribute the wear for maximum bar life. The bar should be cleaned every day of use and checked for wear and damage. Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed with a fi le as soon as they occur.

A bar with any of the following faults should be replaced.

• wear inside the bar rails which permits the chain to lay over sideways
• bent guide bar
• cracked or broken rails
• spread rails

Lubricate the guide bars with a sprocket at their tip weekly. Using a grease syringe, lubricate weekly in the lubricating hole. Turn the guide bar and check that the lubrication holes and bar rails are free from impurities.

MAINTENANCE SCHEDULE

Daily check

• Bar lubrication Before each use
• Chain tension Before each use and frequently
• Chain sharpness Before each use, visual check
• For damaged parts Before each use
• For loose fasteners Before each use
• Guide bar Before each use
• Complete saw After each use

REPLACEMENT PARTS (BAR AND CHAIN)

• Manufacturer MILWAUKEE
• Chain 4932 4801 76
• Guide bar 4932 4801 69

The chain must be fitted with the bar from the same manufacturer according to above combinations.

EXPLODED VIEW
If needed, an exploded view of the product can be ordered. State the product type and the serial number on the label, and order the drawing at your local service centers.

SYMBOLS

• Read the instructions carefully before starting the product.
• CAUTION! WARNING! DANGER!
• Remove the battery pack before starting any work on the product.
• The product should only be used by persons who are specifically trained in tree maintenance work.
• Never expose the product to rain.
• Do not use the product one-handed.
• Always use the product two-handed.
• Wear safety shoes with cut protection, grippy sole, and steel toe.
• Wear gloves.
• Always wear protective clothing and footwear.
• Wear a protective helmet. Wear ear protectors. Use safety glasses.
• Beware of pruning saw kickback and avoid contact with the bar tip.
• Keep bystanders at least 50 ft. away during use.
• Chain oil reservoir
• Rotate to adjust the chain tension.
• Chain running direction
• Accessory – Not included in standard equipment, available as an accessory.
• Guaranteed sound power level 100 dB(A)
• No-load chain speed
• Voltage
• Direct current

Do not dispose of waste batteries, waste electrical and electronic equipment as unsorted municipal waste. Waste batteries and waste electrical and electronic equipment must be collected separately. Waste batteries, waste accumulators and light sources have to be removed from equipment. Check with your local authority or retailer for recycling advice and collection point.
According to local regulations retailers may have an obligation to take back waste batteries and Waste electrical and electronic equipment free of charge.
Your contribution to re-use and recycling of waste batteries and waste electrical and electronic equipment helps to reduce the demand of raw materials.
Waste batteries, in particular containing lithium and waste Electrical and electronic equipment contain valuable, recyclable materials, which can adversely impact the environment and the human health, if not disposed of in an environmentally compatible manner.
Delete personal data from waste equipment, if any.

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