DENALI B09SQ672YY 10 Amp 14 Inch Corded Dethatcher Instruction Manual

: June 14, 2024
: DENALI

DENALI B09SQ672YY 10 Amp 14 Inch Corded Dethatcher

IMPORTANT SAFETY INSTRUCTION

Read these instructions carefully and retain them for future use. If this appliance is passed to a third party, then these instructions must be included.

WARNING When using electric gardening appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and/or injury to persons including the following:

Read All Instructions

WARNING Risk of electric shock!

To reduce the risk of electric shock, use only with an extension cord intended for outdoor use, such as an extension cord of cord type SW-A, SOW-A, STW-A, STOW-A, SJW-A, SJOW-A, or SJTOW-A.
The double insulated system is intended to protect the user from electric shock resulting from a break in the internal insulation of the appliance. Observe all normal safety precautions to avoid electrical shock.
To reduce the risk of electric shock, do not expose to water.
Replace damaged cord immediately.
Never modify or add devices for locking the switch to the ON position.

WARNING Risk of injury!

Risk of Eye Injury. Use Safety Glasses or Similar Eye Protection.
To reduce the risk of injury to persons, do not operate without guards in place.
Tines are sharp. Handle with caution.
Avoid Dangerous Environment. Don’t use the appliance in damp or wet locations.
Don’t Use In Rain.
Keep Children Away – All visitors should be kept at a distance from the work area.
Dress Properly- Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of rubber gloves and substantial footwear is recommended when working outdoors. Wear protective hair covering to contain long hair.
Use Safety Glasses – Always use face or dust mask if operation is dusty.
Use Right Appliance – Do not use appliance for any job except that for which it is intended.
Ground Fault Circuit Interrupter (GFCI) protection should be provided on the circuit(s) or outlet(s) to be used for the gardening appliance. Receptacles are available having built-in GFCI protection and may be used for this measure of safety.
Avoid Unintentional Starting – Don’t carry plugged-in appliance with finger on switch. Be sure switch is off when plugging in.
Don’t Abuse Cord. Never carry appliance by cord or yank it to disconnect from receptacle. Keep cord from heat, oil, and sharp edges.
Don’t Force Appliance. It will do the job better and with less likelihood of a risk of injury at the rate for which it was designed.
Don’t Overreach – Keep proper footing and balance at all times.
Stay Alert – Watch what you are doing. Use common sense. Do not operate appliance when you are tired.
Disconnect Appliance – Disconnect the appliance from the power supply when not in use, before servicing, when changing accessories such as clips, the cylinder and the adjustment knob at the wheel, and the like.
Store Idle Appliances Indoors – When not in use, appliances should be stored indoors in dry, and high or locked-up place – out of reach of children.
Maintain Appliance With Care – Keep cutting edge sharp and clean for best performance and to reduce the risk of injury. Follow instructions for changing accessories. Inspect appliance cord periodically, and if damaged, have it repaired by an authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and free from oil and grease.
Check Damaged Parts – Before further use of the appliance, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, breakage of parts, mounting, and any other condition that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless indicated elsewhere in this manual.
Use only those accessories and attachments that are provided with the appliance.
The use of any other accessory or attachment may increase the risk of injury.
Do not allow children under the age of 14 to operate this appliance. Children who are 14 years of age and older must read and understand the operating instructions and the safety rules in this manual, and must be trained and supervised by a parent.
Do not use the appliance in the presence of flammable liquids or gases.
Use proper clothing and footwear during operation to reduce the risk of injury that may be caused by flying debris.
Always remove the appliance plug from an extension cord when making adjustments, changing parts, or cleaning.
Never leave a running appliance unattended. Turn the power switch to off. Do not leave the appliance until it has come to a complete stop.
Keep all safety devices in place.
Before use, get familiar with all of the appliance controls, their functions and location.
Always keep the appliance clean and in good working order.
Keep the area of operation clear of all persons, particularly small children, and pets.
Use extreme care when approaching blind corners, doorways, shrubs, trees, or other objects that may obscure the user’s vision of a child or bystander. Keep children, bystanders, helpers and pets at least 100 feet (30 m) from the appliance while it is in operation. Stop the appliance if anyone enters the area.
This appliance has a precision-built electric motor. It should be connected to a receptacle that is 120 V AC only (normal household current), 60 Hz. Do not operate this appliance on direct current (DC). A substantial voltage drop will cause a loss of power and the motor will overheat. If the appliance does not operate when plugged into a receptacle, doublecheck the power supply.
Carefully check the working area for wildlife and pets. Wildlife and pets may be injured while the appliance is in operation. Thoroughly check the working area and remove any stones, sticks, wires, bones and foreign objects. When using the appliance, ensure that no wildlife, pets or small tree stumps are hidden in the dense grass
Always push the appliance forward when operating and never pull it towards the body.
Do not modify the appliance. Unauthorized modifications can impair the safety of the appliance, lead to increased noise and vibrations, and poor performance.
Do not operate the appliance when barefoot or wearing open sandals.
Do not operate the appliance when crossing surfaces other than grass, and when transporting the appliance to and from the working area.
Do not dethatch on slopes with an incline greater than 15°.
Avoid using the appliance in bad weather conditions especially when there is a risk of lightning.

Safety instructions for extension cords

Extension Cord – Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized extension cord will cause a drop in line voltage resulting in loss of power and overheating. The AWG size table shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

Amp rating

|

Total length of extension cord in feet (meters)

---|---

| <|

25′
(7.6 m)

|

50′
(15 m)

|

100
(30.4 m)

|

150′
(45.7 m)

0| 6| 18| 16| 16| 14
6| 10| 18| 16| 14| 12
10| 12| 16| 16| 14| 12
12| 16| 14| 12|

Not recommended

To reduce the risk of disconnection of appliance cord from the extension cord during operaing:
Make a knot as shown in Fig. 1; or
Use one of the plug-receptacle retaining straps or connectors described in this manual.
When working outdoors with the appliance, use an extension cord that is designed for outdoor use. This type of cord is designated with “W-A” or “W” on the jacket of the cord.
Check extension cords before each use. If damaged, replace immediately. Inspect the appliance cord periodically, and if damaged, have it repaired by an authorized service facility. Never use the appliance with a damaged extension cord since touching the damaged area could cause electrical shock resulting in serious injury.
Make sure the extension cord is properly wired and not modified.
Keep the extension cord clear of the working area. Position the extension cord with the cord retainer (M) that it will not get caught on lumber, tools, or other obstructions while the user is working with the appliance. Failure to do so can result in serious personal injury.
The extension cord must have a polarized plug.
If a series of extension cords will be connected, make sure all are for the same ampere rating, capable to handle 10 A or more.
If 2 or 3 gardening appliances are connected to the same extension cord, make sure the extension cord can accommodate the total ampere rating.

Residual risks

Even if you are operating this appliance in accordance with all the safety requirements, potential risks of injury and damage remain. The following dangers can arise in connection with the structure and design of this appliance:

Risk of injury and property damage caused by broken attachments or the sudden impact of hidden objects.
Risk of cuts from the appliance’s sharp tines.
Risk of getting entangled by the appliance’s motor.
Risk of inhaling small dust and particles into the lungs.

SAVE THESE INSTRUCTIONS

Polarized appliance connections

To reduce the risk of electric shock, this appliance has a polarized plug (one blade is wider than the other) and will require the use of a polarized extension cord. The appliance plug will fit into a polarized extension cord only one way. If the plug does not fit fully into the extension cord, reverse the plug. If the plug still does not fit, obtain a correct polarized extension cord. A polarized extension cord will require the use of a polarized wall outlet. This plug will fit into the polarized wall outlet only one way. If the plug does not fit fully into the wall outlet, reverse the plug. If the plug still does not fit, contact a qualified electrician to install the proper wall outlet. Do not change the equipment plug, extension cord receptacle, or extension cord plug in any way.

Intended Use

The appliance is intended for use in home and gardening environments. The appliance is primarily used to remove dead plant material (thatch) barrier from small-scale, residential lawns and home/hobby gardens. The appliance uses spring tines that comb across the top of the grass, pulling up any thatch to the surface of the lawn.
This appliance is intended for household use only.
Do not use the appliance on uncut lawns, this can cause damage to the appliance or make dethatching very difficult.
Only use the appliance as described in these instructions. Any other use is considered improper and may result in damage to property or injury to persons.

NOTICE

Why is dethatching so important?

Removing thatch can be crucial for a proper lawn maintenance as thatch can harm grass and lawns. Thatch is a mixture of dead and living plant matter that gathers at the base of grass and lawn. While a small amount of thatch is beneficial, it becomes an issue when thatch builds up. Regular dethatching allows air, water, and nutrients to reach plants and soil more efficiently.
Thatch that is too thick prevents moisture and air from getting toplants, lawn, and soil. Excessive thatch makes it difficult for the water to penetrate, causing water to run off instead of soak in. Thatch can also harbor insects and lawn diseases. In addition, grass may begin growing in the thatch layer instead of the soil, producing shallow root systems and expose it to greater temperature extremes.
If the thatch builds up for too long, not only can it can kill the grass, but it can also damage the soil. Damaged soil, might make it difficult for the replanted grass to flourish.

Personal Protective Equipment

Wear personal protective equipment (PPE). Depending on the application, use safety goggles or safety glasses. As appropriate, wear hearing protectors (Fig. 2).

Description of Symbol

The symbols and abbreviations below are used in these instructions and on the labels on the power tool. Get familiarized with the meaning of these symbols and abbreviations before using the power tool. Failure to follow all instructions may result in electric shock, fire, and/or serious personal injury.

Signal words

DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates
a hazardous situation which, if not avoided, could
result in minor or moderate injury.
NOTICE is used to address practices not related to
personal injury.

Symbol explanation

Symbol

|

Name/explanation

---|---
| Volts
| Amperes
| Hertz
| Pounds
| Kilograms
| Alternating current (AC)
| Read the instructions.
| This appliance is classified as protection class II. This means the appliance is equipped with reinforced or double insulation between the mains supply circuit and the output voltage or the casing. Therefore it does not require a safety connection to an electrical earth (ground).
| Do not expose to rain.
| Beware of thrown objects. Objects thrown by the appliance could hit the operator or other bystanders. Always ensure that other people and pets remain at a safe distance from the appliance when it is in operation.
| Keep away from rotating tines.
| Do not operate on slopes with an incline greater than 15°.
| Keep bystanders away from the appliance .
| Wear eye protection.
` `| Wear hearing/ear protection.
| Wear a dust mask.
| Wear a dust mask.
| Wear safety boots.
| Revolutions per minute.
| The appliance is resistant to water splashes from any direction.

Appliance Description

Handle bar
Lever
Upper handle
Power cord and plug
Lower handle
Depth adjustment knob
Tine (18x)
Knob (2x)
Screw (2x)

Bolt (2x)
Cable clip (3x)
Rubber pad (2x)
Cord retainer
Cylinder
Wheel
Flap
On/off button

Before First Use

DANGER Risk of suffocation!
Keep any packaging materials away from children and pets – these materials are a potential source of danger, e.g. suffocation.

Remove all the packing materials.
Remove and review all components before use.
Check the appliance for transport damages. Do not use this product if any parts are missing, damaged, or worn.
Before connecting the appliance to the extension cord or outlet, check that the outlet voltage and current rating corresponds with the details shown on the appliance rating label.

Assembly

WARNING Assemble the appliance correctly before use. If parts of the appliance are damaged, do not use the
appliance.

This appliance should be assembled, maintained and operated only by an experienced adult. If in doubt, consult a professional.

Installing the lower handle

Insert the cord retainer (M) into the lower handle (E) (Fig. 3).
Slide the cord retainer (M) onto the top of the lower handle (E) (Fig. 3).
Insert the lower handle (E) into the holes in the housing (Fig. 4).
Place the rubber pad (L) between the housing and the lower handle (E) (Fig. 4).
Fasten the screws (I) with a cross-head screwdriver (not included) (Fig. 4).
Repeat the same steps on the other side.
Insert 2 screws (I) into the holes in the lower handle (E) to secure the lower handle (E) in position (Fig. 4).

Installing the upper handle

Align the mounting holes on the upper handle (C) and the lower handle (E) (Fig. 5).
Insert the bolts (J) from the outside of the upper handle (C) through the mounting holes. Secure the bolts (J) using the knobs (H). The curved head of the bolt (J) must be aligned to the curve of the upper handle (C) (Fig. 5).
Repeat the same steps on the other side.

Using an extension cord

WARNING Risk of electric shock!

Always use a suitable extension cord.
Keep the extension cord away from the tines (G).
Position the extension cord so that it will not get caught on lumber, tools or other obstructions while working with the appliance.
The extension cord has to be heavy enough to carry the current that the appliance draws. An undersized extension cord causes overheating.

Using the cord retainer

The cord retainer (M) prevents the extension cord from disconnecting from the power cord (D) while the appliance is in use.
Connect the extension cord to the cord retainer (M) and the appliance first before connecting the extension cord to the outlet.
Make a loop of the extension cord around the cord retainer (M) before connecting the extension cord to the outlet.

Fold the extension cord to form a tight loop near the cord retainer (M).
Push the loop through the bottom hole in the cord retainer (M) (Fig. 6).
Slide the loop over the retaining clip, and pull down until the extension cord settles into the hook.
Use the cable clips (K) to clip the extension cord to the handles to avoid danger from the extension cord dangling.

Operation

CAUTION Risk of injury!

Wear goggles or safety glasses at all times when operating the appliance.
Wear a face mask or dust cover at dusty locations.
Wear safety gloves and safety boots when operating the appliance.

CAUTION Risk of damage!

Do not pull the appliance backwards. Only push the appliance forward while in use.

Starting the appliance

Connect the extension cord to a suitable outlet.
Push and hold the on/off button (Q). The lever (B) is operational.
Pull the lever (B) in the direction of the handle bar (A). The cylinder (N) with the tines (G) starts rotating.
Release the on/off button (Q).

Stopping the appliance

Release the lever (B) to switch the appliance off.

WARNING Risk of damage!
Wait until the cylinder (N) comes to a complete stop before starting the appliance again. Do not quickly switch the appliance off and on.

CAUTION Risk of injury!
Always disconnect the appliance from the outlet after completing the work

Use

CAUTION Risk of injury!

Before each use, examine the appliance for damaged, missing, or loose parts such as screws, nuts, bolts and tines.
Tighten all the fasteners and knobs correctly.

The appliance uses the tines (G) to comb across the grass and pull thatch up to the surface of the lawn. Thatch is the layer between the grass line and the soil.

Start the appliance.
Slowly move the appliance across the lawn. The tines (G) go into the thatch and pull the thatch up. The thatch is released through the flap (P).
Stop the appliance.
Rake the thatch after use and dispose at the composter, if available .

Tips

Dethatch the lawn in early spring or early fall when the turf is actively growing.
To have better results for overgrown grass, mow the lawn first to give 2″ (5 cm) height of the grass before dethatching.
In case of bare patches, over seed those areas after dethatching.
Fertilize the lawn to help with recovery.
Over watering and over fertilization can cause excess thatch.
Note that excessive dethatching can be damaging. Dethatching tears and rips dormant turf. This can affect its ability to recover, especially after a hard winter. Dethatching can also bring up weeds. These weeds can then infiltrate the lawn. Do not dethatch excessively, or when it is not needed.

Working area

WARNING Risk of electric shock!!
Keep extension cord away from tines (G).

Place the appliance at the edge of the lawn and as close as possible to the outlet.
Work away from the ~ outlet (Fig. 7).
After each turn, bring the extension cord to the opposite side that has already been worked on.

Adjusting the dethatcher depth

WARNING Risk of damage!

Switch the appliance off, unplug the appliance and ensure the cylinder (N) has stopped before adjusting the dethatcher depth.
Both depth adjustment knobs (F) must be set to the same position, and be firmly locked into place.
Pull out and rotate the two depth adjustment knobs (F) on the wheels (0) to select the desired setting (Fig. 8):

Setting		Dethatcher depth
Ι Low	Use for removing thick
thatch layers	3/s” (10 mm)
II Middle	Use for removing thin to
medium thatch layers	1/s” (3 mm)
III High	Use for transportation and
storage	– 95411 (-2 mm)

Cleaning and Maintenance

WARNING Risk of electric shock!

To prevent electric shock, unplug the appliance before cleaning.
During cleaning do not immerse the electrical parts of the appliance in water or other liquids. Never hold the appliance under running water.
Do not let water reach the electrical parts of the appliance.

CAUTION Risk of damage!
The tines are sharp. Wear safety gloves for performing cleaning and maintenance.

Clean the appliance after each use.

Cleaning

To clean the appliance, wipe with a soft, slightly damp cloth.
To clean the wheels (0) and tines (G), hose down any soil and grass.
Wipe the appliance, the wheels (O) and tines (G) dry after cleaning.
Never use corrosive detergents, wire brushes, abrasive scourers, metal or sharp utensils to clean the appliance.

Storage

Clean the appliance before storage.
Make sure that the appliance does not have loose or damaged parts.
Store the appliance indoors in a dry and locked-up place. Keep out of reach of children and pets.

Cover the appliance with a cover to protect it from dust for long term storage.

Transport

Select setting Ill when transporting the appliance.
When transporting the appliance in a vehicle, to avoid damage, always secure it with suitable bungee cords or similar means.

Maintenance

WARNING Risk of injury!

Before performing any maintenance work, make sure to:
1. Switch the appliance off.
2. Wait until all rotating parts stop rotating.
3. Disconnect the appliance from the outlet.
Any other servicing than mentioned in this manual should be performed by a professional repair center.

Replacing the tines

WARNING Risk of injury!

When servicing use only identical replacement parts.
All screws must have flat washers and lock washers in place to prevent the screws from loosening during use.

Turn the appliance onto its side to expose the cylinder (N).
Identify the worn or broken tines (G).
Loosen and remove the screw, the flat washer, the lock washer and lock nut on both sides of the tine casing with a 11 /64″ (4.5 mm) crosshead screwdriver, and a wrench or socket (not included) (Fig. 9). Use a socket in size MS.
Press the locker on the edge of the shaft with a flat-head screwdriver (not included) to separate the tine module from the cylinder (N) (Fig. 9). Apply some force to the concave side of the tine module to remove it from the cylinder (N) (Fig. 9).
Remove the pin from the module using a PH2 or PH3 screwdriver (not included) to remove the worn or broken tine (G) (Fig. 1 O).
Place a new tine (G) in the module. Insert the pin through the new tine into the tine module (Fig. 11 ).

Press the pin against a solid surface to push it back into place if required.
Re-install the tine module back onto the cylinder (N).
Place the screw and the washers back in place (Fig. 9). Secure the screw with the lock nut.

Specifications

Model number	DHA1063
Name and address of manufacturer	Amazon.com Services

Frequently Asked Questions

Problem	Solution
The appliance does not switch on.

Check if the appliance is connected to an extension cord.
Use voltage tester to verify if the outlet is powered.

The appliance runs intermittently.|

Check the extension cord. Replace if damaged .
Obstructions on the wheels (O) or tines (G). Clean the obstructions
Check the grass height. Mow the lawn before using the appliance.
In case of an uneven surface, increase the dethatcher depth.

The appliance produces a whistling sound.|

Remove foreign objects from the appliance. Check the appliance for damage.
Increase the dethatcher depth .

The appliance is hard to push|

Switch the appliance off and wait until all rotating parts stop. Remove foreign objects. Wait for 1 minute. Switch the appliance on again.
Mow the lawn before using the appliance.
Obstructions on the wheels (0) or tines (G). Clean the obstructions

Dethatching results are not satisfying.|