WORKPRO W125188A Cordless Brushless Pruning Saw

Introduction

This document provides original operating instructions and safety regulations for the WORKPRO Cordless Brushless Pruning Saw (Model W125188A). Please read these instructions carefully and keep them in a safe place for future reference. Failure to follow these instructions may result in serious injury or damage.

Component List

* Not all accessories illustrated or described are included in standard delivery.

Symbols

• ? To reduce the risk of injury, user must read instruction manual.
• ? Wear ear protection.
• ? Wear eye protection.
• ? Wear dust mask.
• ⛑️ Wear head protection.
• ⚠️ Beware of pruning saw kickback and avoid contact with bar tip.
• ☔❌ Do not expose to rain.
• ? Wear protective gloves.
• ? Wear protective footwear.
• ⚡⚠️ Warning of danger from overhead electric-power lines.
• ?❌ Do not burn.
• ? Lock.
• ? Unlock.
• ♻️ Battery disposal: Waste electrical products must not be disposed of with household waste. Please recycle where facilities exist.

Safety Regulations

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, fire and/or serious injury.

1. Work Area Safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres (e.g., presence of flammable liquids, gases or dust). Power tools create sparks that may ignite dust or fumes.
• Keep children and bystanders away while operating. Distractions can cause loss of control.

2. Electrical Safety

• Ensure power tool plugs match the outlet. Never modify the plug.
• Avoid body contact with earthed or grounded surfaces (pipes, radiators, ranges, refrigerators).
• Do not expose power tools to rain or wet conditions. Water entering a power tool increases the risk of electric shock.
• Do not abuse the cord. Keep cord away from heat, oil, sharp edges, or moving parts. Damaged or entangled cords increase the risk of electric shock.
• When operating outdoors, use an extension cord suitable for outdoor use.
• If operating in a damp location is unavoidable, use a residual current device (RCD) protected supply.

3. Personal Safety

• Stay alert, watch what you are doing, and use common sense. Do not use while tired or under the influence of drugs, alcohol, or medication.
• Use personal protective equipment: always wear eye protection. Use dust masks, non-skid safety shoes, hard hats, or hearing protection as appropriate.
• Prevent unintentional starting: ensure the switch is off before connecting to power source or battery pack, or when carrying the tool.
• Remove any adjusting key or wrench before turning the power tool on.
• Do not overreach; keep proper footing and balance at all times.
• Dress properly: do not wear loose clothing or jewellery. Keep hair and clothing away from moving parts.
• If dust extraction facilities are provided, ensure they are connected and properly used.
• Do not become complacent; careless actions can cause severe injury.

4. Power Tool Use and Care

• Do not force the power tool. Use the correct tool for your application.
• Do not use the tool if the switch does not turn it on and off.
• Disconnect the plug or remove the battery pack before making adjustments, changing accessories, or storing.
• Store idle power tools out of reach of children and persons unfamiliar with their use.
• Maintain power tools and accessories. Check for misalignment, binding, or broken parts. Have damaged tools repaired before use.
• Keep cutting tools sharp and clean. Properly maintained tools are less likely to bind and are easier to control.
• Use the tool, accessories, and bits in accordance with these instructions, considering working conditions.
• Keep handles and grasping surfaces dry, clean, and free from oil and grease.

5. Service

Have your power tool serviced by a qualified repair person using only identical replacement parts.

6. Battery Tool Use and Care

• Ensure the switch is off before inserting the battery pack.
• Recharge only with the specified charger. Using an incorrect charger may create a risk of fire.
• Use power tools only with specifically designated battery packs.
• 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 battery terminals can cause burns or fire.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact occurs, flush with water and seek medical help if necessary.

Additional Safety Instructions for the Charger

• Only use the specific designed WORKPRO Lithium Ion battery charger.
• Do not use any other battery charger.
• Read all instructions, labels, and cautionary markings on the charger and battery pack.
• Do not use the charger if it has been damaged. Take it to an authorized service center.
• Do not disassemble the charger.
• Do not plug anything other than your WORKPRO tool into the charger.
• Do not place the tool or charger on an uneven surface or near a heat source.
• Do not operate the charger in an enclosure unless proper ventilation is provided.
• Do not allow any liquid to come into contact with the charger.
• Do not position the tool or battery charger near water.
• Do not spill liquid of any kind on the tool or charger.
• To reduce the risk of electric shock, unplug the charger before cleaning. Clean with a damp cloth.
• Do not place any object on, or allow anything to rest on the charger.
• Ensure the charger cable is positioned where it will not be stepped on, tripped over, or otherwise subjected to damage or stress.
• Do not pull on the lead to disconnect from the mains power socket.
• Do not use an extension cord unless absolutely necessary.
• Never attempt to connect two chargers together.
• Do not charge batteries or use the tool in locations where the temperature may be below 4°C (40°F) or exceed 40°C (104°F).
• If charging a second battery pack, unplug the charger for at least 15 minutes before charging the next one.

Additional Safety Instructions Related to the Battery Pack and Battery Safety

• Use only WORKPRO batteries or WORKPRO-approved replacements.
• Do not use the battery to power any device other than the WORKPRO tool it was sold with.
• Charge the battery only with the supplied charger or WORKPRO-approved replacements.
• Do not charge the battery in a place where static electricity is generated.
• The battery can be stored at temperatures between 4°C (40°F) and 40°C (104°F).
• Never store or leave your lithium-ion battery in temperatures over that recommended, otherwise fire may occur.
• DO NOT store the Lithium Ion battery anywhere that the temperature can easily reach higher temperatures than recommended (e.g., garden sheds, vehicles in direct sunlight).
• The battery can be charged or operated at temperatures between 4°C (40°F) and 40°C (104°F). NEVER CHARGE OR OPERATE BELOW OR ABOVE RECOMMENDED TEMPERATURES, otherwise FIRE OR SERIOUS DAMAGE TO THE BATTERY PACK MAY OCCUR.
• The most suitable temperatures to charge the battery pack are between 20°C (68°F) - 25°C (77°F).
• Always allow the battery pack to cool down after charging; do not place it in a hot environment.
• Store the tool in its packaging in a dry place, away from corrosive fumes or salt air.
• Do not dispose of the battery in a fire or put it into a microwave oven, conventional oven, dryer, or high-pressure container, as the battery may explode.
• Never attempt to open the battery pack, puncture it, or subject it to strong physical shock.
• If the plastic housing of the battery pack breaks open or cracks, discontinue use immediately and do not recharge it.
• Ensure the battery pack clip is in good condition and securely locks the pack in place. Do not continue to use if damaged.
• Stop using the battery if it exhibits abnormal heat, odour, colour, deformation, or is in an abnormal condition.
• If you detect leakage or a foul odour, keep the battery away from fire. If battery liquid leaks onto skin or clothes, wash well with clean water immediately. If liquid gets into eyes, do not rub; rinse well with clean water (for at least 10 minutes) and consult a doctor immediately.
• Do not use a leaking battery.
• Handle batteries with care to avoid shorting the battery with conducting materials (nails, screws, metal watch bands, rings, keys). The battery may overheat and burn you.
• After the battery has reached the end of its useful life, recycle it at your local municipal council recycling centre. Do not attempt to replace battery cells, repair, or modify any part of the battery pack.

When to Charge the Battery

• New batteries are shipped in a low charged condition and should be fully charged before use.
• The battery pack can be recharged at any time during use, provided the pack is not overheated.
• If the battery pack starts to cut out due to low voltage or previous tasks, stop using the tool and recharge the battery.
• For storage, it is suggested to recharge the battery between 50% and 75% charge.

Safety Instructions for Pruning Saw

• Keep all parts of the body away from the saw chain when operating. Ensure the saw chain is not contacting anything before starting.
• Always hold the pruning saw with one hand on the Grip Area (6) and the other hand on the Secondary Grip Area (3).
• Hold the pruning saw by insulated gripping surfaces only, as the saw chain may contact hidden wiring.
• Wear safety glasses. Further protective equipment for hearing, head, hands, legs, and feet is recommended.
• Do not operate a pruning saw in a tree, on a ladder, from a rooftop, or any unstable support.
• Always keep proper footing and operate the pruning saw only when standing on a fixed, secure, and level surface.
• When cutting a limb that is under tension, be alert for spring back.
• Use extreme caution when cutting brush and saplings. Slender material may catch the saw chain and be whipped toward you or pull you off balance.
• Carry the pruning saw switched off and away from your body. Always fit the guide bar cover when transporting or storing.
• Follow instructions for lubricating, chain tensioning, and changing the bar and chain. Improperly tensioned or lubricated chain may break or increase kickback risk.
• Cut wood only. Do not use for cutting metal, plastic, masonry, or non-wood building materials.
• This pruning saw is not intended for tree felling.
• Follow all instructions when clearing jammed material, storing, or servicing. Ensure the switch is off and the battery pack is removed.
• First-time users should practice cutting logs on a saw-horse or cradle.
• Have sharpening and maintenance of the saw chain performed by authorized service centers.

Causes and Operator Prevention of Kick-back

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 can 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 can push the guide bar rapidly back towards the operator.

To reduce the risk of kickback:

• Keep all safety items in place and ensure they work properly.
• Do not overreach or cut above shoulder height.
• Keep solid footing and balance at all times.
• Stand slightly to the left side of the saw to keep your body out of the direct line of the chain.
• Do not let the guide bar nose touch anything when the chain is moving.
• Never try cutting through two logs at the same time.
• Do not bury the guide bar nose or try plunge cuts.
• Watch for shifting of wood or other forces that may pinch the chain.
• Use extreme caution when re-entering a previous cut.
• Use only the low-kickback chain and guide bar supplied or recommended.
• Never use a dull or loose chain. Keep chain sharp with proper tension.

Technical Data

Intended Use

• The pruning saw is intended for cutting only wood and branches up to a diameter corresponding to the length of the pruning saw guide bar.
• The pruning saw must be used at ground level or from a suitable platform that is completely stable and secure.
• During use, the pruning saw should be held in both hands, right hand on the Grip Area and left hand on the Secondary Grip Area.
• The pruning saw is intended for outdoor use only. It is not intended for any other use.
• Mounting of parts on the pruning saw is authorized only for original or manufacturer-approved spare parts (chain guides or saw chains for example) as well as for authorized chain guide / saw chain combinations as indicated in the manual.
• The user is responsible for any accident resulting from improper use or unauthorized modification of the pruning saw.

Assembly

WARNING: Do not install the battery pack before it has been completely assembled.

Always use gloves when handling the chain.

Mounting the Saw Chain

1. Unpack all parts carefully. Remove the Housing-Cover by turning the Housing-Cover Knob in a counterclockwise direction. (See Fig. A1)
2. Place the pruning saw on a solid, level surface.
3. Use only recommended saw chain for Guide Bar.
4. Slide the Chain in the slot around the Guide Bar. Ensure the Chain is in the correct running direction by comparing it to the chain icon on the Guide Bar, or referring to the chain direction symbol on the saw body. (See Fig. A2)
5. Fit the Chain onto the Drive Sprocket, so that the Fastening Bar Bolt and the Bar Locating Tab on the Bar Pad fit into the keyway of the opening on the Guide Bar. (See Fig. B1, B2)
6. Assure all parts are seated properly. Make sure the drive links are fully seated in the Drive Sprocket (See Fig. C1), avoiding a kink as shown in Fig. C2. If a kink occurs, pick up the Chain at the Guide Bar just ahead of the kink and then pull the kink out.
7. NOTE: Chain should rotate freely and be free of kinks.
8. Fit the Chain Cover and tighten the Chain Cover by turning the Housing-Cover Knob clockwise until it is tight. (See Fig. D)
9. WARNING: The Chain is not yet tensioned. Tensioning the Chain applies as described under "TENSIONING CHAIN". The Chain now needs to be inspected to make sure it is properly tensioned.

Tensioning Chain

NOTE: New saw chains will stretch. Check the chain tension frequently when first used and tighten when the Chain becomes loose around the Guide Bar.

1. Place the pruning saw on any suitable flat surface.
2. Loosen the Housing-Cover Knob a bit to loosen the Chain Cover lightly.
3. Adjust the chain tension. Turn the Chain Tensioning Screw clockwise to tighten. (See Fig. E1)
4. The correct chain tension is reached when the Chain can be raised approximately half the drivelink depth from the Guide Bar in the center. (See Fig. E2)
5. Tighten the Housing-Cover Knob to secure the Chain Cover. (See Fig. E3)

NOTE: The Chain is properly tensioned when it can be lifted off of the Guide Bar and the drivelink is within the rail of the Guide Bar.

NOTE: The chain will naturally stretch and lose proper tension under general use. To re-tension, repeat steps 1-5 listed above.

Lubrication

NOTE: Chain life and cutting capacity depend on optimum lubrication. Therefore, the chain should be oiled before operation.

IMPORTANT: It is important to use bar and chain lubricant that is formulated to perform over a wide temperature range with no dilution required. This can be found at your local hardware store. Do not use dirty, used or otherwise contaminated oil. Damage may occur to the bar or chain. Use of non-approved oil will void the warranty.

1. Switch off the pruning saw and remove the battery.
2. Place the pruning saw on a level surface with the Housing-Cover facing up.
3. Clean the Guide Bar and Chain with a soft brush or solvent.
4. Apply lubrication oil in area (a) between Guide Bar and Chain. (See Fig. F)
5. Fit the battery. Switch on the pruning saw. Lubrication oil is evenly distributed over the chain. The saw chain is lubricated.

Operation

1. Before Using Your Cordless Tool

WARNING! The charger and battery pack are specially designed to work together. Never insert or allow metallic objects into your charger or battery pack connections.

NOTE: Your battery pack is UNCHARGED and you must charge it once before use.

The battery charger supplied is matched to the Li-ion battery installed in the machine. Do not use another battery charger.

2. Switching On and Off

ATTENTION: Check the battery pack before using your cordless tool. Only use the battery pack supplied or recommended by the manufacturer. For switching on the tool, press the Lock-Out Button, then fully press the On/Off Switch and hold in this position. The Lock-Out Button can now be released. For switching off, release the On/Off Switch.

3. Cutting

IMPORTANT: Check recently replaced chain tension about every 10 minutes during operation.

1. Install the battery pack into the machine.
2. Make sure the section of log to be cut is not lying on the ground. This will keep the chain from touching the ground as it cuts through the log.
3. Touching the ground while the Chain is moving is dangerous and will dull the Chain.
4. When ready to make a cut, push the Lock-Out Button completely in with the right thumb and squeeze the trigger. This will turn the saw on. Releasing the trigger will turn the saw off. Make sure the saw is running at full speed before starting a cut.
5. When starting a cut, slowly place the moving chain against the wood. The wood should be as close to the saw body as possible. Hold saw firmly in place to avoid possible bouncing or skating (sideways movement) of saw.
6. Guide the saw using light pressure and do not put excessive force on the saw, letting the saw do its work. The motor will overload and can burn out. It will do the job better and safer at the rate for which it was designed.
7. Remove the saw from a cut with the saw running at full speed. Stop the saw by releasing the On/off Switch. Make sure the chain has stopped before setting the saw down.
8. Keep practicing on scrap logs in a secure working area until you are comfortable, using a fluid motion.

4. Kickback Safety Devices on This Saw

This saw has a low-kickback chain and reduced kickback Guide Bar. Both items reduce the chance of kickback. However, kickback can still occur with this saw.

The following steps will reduce the risk of kickback:

• Keep all safety items in place on saw. Make sure they work properly.
• Do not overreach or cut above shoulder height.
• Keep solid footing and balance at all times.
• Stand slightly to the left side of saw. This keeps your body from being in direct line with chain.
• Do not let Guide Bar nose touch anything when chain is moving.
• Never try cutting through two logs at same time. Only cut one log at a time.
• Do not bury the Guide Bar nose or try plunge cut (boring into wood using Guide Bar nose).
• Watch for shifting of wood or other forces that may pinch chain.
• Use extreme caution when reentering a previous cut.
• Use only the low-kickback chain and Guide Bar that were supplied with this pruning saw or recommended.
• Never use a dull or loose chain. Keep chain sharp with proper tension.

5. How to Use Saw Safely

• Use the pruning saw only with secure footing.
• Hold the pruning saw at the right-hand side of your body.
• The Chain must be running at full speed before it makes contact with the wood.
• Use the Cutting base panel (15) to secure the saw onto the wood before starting to cut.
• Use the Cutting base panel (15) as a leverage point while cutting.
• Raise the Chain Guard when cutting from bottom to top of material.
• Do not operate the saw with arms fully extended, attempt to saw areas which are difficult to reach, or stand on a ladder while sawing.

Cutting Wood Under Tension

WARNING: When cutting a limb that is under tension, use extreme caution. Be alert for wood springing back. When wood tension is released, limb could spring back and strike operator causing severe injury or death.

When sawing logs supported on both ends, start the cut from above (overbuck) about 1/3 of the diameter into the log, and then finish the cut from below, in order to avoid contact of the electric chain saw with the ground.

When sawing logs supported on only one end, start the cut from below (underbuck) about 1/3 of the diameter into the log, and finish the cut from above to avoid log splitting or jamming.

Maintenance and Storage of Electric Chain Saw

Follow maintenance instructions in this manual. Proper cleaning of saw and chain and Guide Bar maintenance can reduce chances of kickback. Inspect and maintain saw after each use.

NOTE: Even with proper sharpening, risk of kickback can increase with each sharpening.

Maintenance

• Remove the battery pack: when not in use, before moving, before servicing, or before changing accessories.
• Inspect electric chain saw before and after each use. Check for damage that may affect operator safety or operation. Check for alignment or binding of moving parts.
• Do not use if damage affects safety or operation. Have damage repaired by an authorized service center.
• Maintain electric chain saw with care.
• Never expose saw to rain or direct moisture.
• Keep chain sharp, clean, and lubricated for better and safer performance. Follow steps outlined in this manual to sharpen chain.
• Keep handles dry, clean, and free of oil and grease.
• When servicing, use only identical replacement parts.

Bar Maintenance

To maximize bar life, clean the bar rails that carry the chain before storing the tool or if the bar or chain appear dirty. Clean rails every time the chain is removed.

Replace the Guide Bar when the groove is worn, the Guide Bar is bent or cracked, or when excess heating or burring of the rails occurs. Use only the specified Guide Bar.

Replacing Chain

Replace chain when cutters are too worn to sharpen or when chain stops. Only use replacement chain noted in this manual.

• Handle the saw chain with gloves and remove the battery first!
• Inspect the saw chain and the guide bar for damage or signs of wear.
• Never put a new saw chain on a worn guide bar.
• Unscrew the Housing-cover knob (2) counter-clockwise to remove the Housing-cover (11).
• Unscrew the Chain tensioning screw (14) to release saw Chain (12).
• Remove the old saw Chain (12).
• Round the new saw chain over the Drive sprocket (17) and Guide bar (13).
• Please note the running direction of the saw chain. The saw chain icon is shown on housing nearby Drive sprocket (17).
• Use an oiler to oil the saw Chain (12) and the Drive sprocket (17).
• Slightly tighten the saw Chain (12) with the Chain tensioning screw (14). For tightening, turn the screw clockwise.
• Re-tighten the Housing-cover (11) with the Housing-cover knob (2) on the Housing-cover (11).
• Firmly tighten the saw Chain (12) with the Chain tensioning screw (14). Use the included Chain tensioning tool (9) to tighten the screw.
• Let each new saw chain break-in first!
• When attaching the saw chain, observe the running direction!

Sharpening Saw Chain

WARNING: Remove the battery pack before servicing. Severe injury or death could occur from electrical shock or body contact with moving chain. Cutting edges on chain are sharp. Use protective gloves when handling chain. Keep chain sharp. Your saw will cut faster and more safely. A dull chain will cause undue sprocket, Guide Bar, chain, and motor wear. If you must force chain into wood and cutting creates only sawdust with few large chips, chain is dull.

Instructions Concerning the Proper Techniques for Limbing and Cross-Cutting

1. Limbing a tree

Limbing is removing the branches from a fallen tree. When limbing, leave 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 electric chain saw.

2. Bucking a log

Bucking is cutting a log into lengths. It is important to make sure your footing is firm and your weight is evenly distributed on both feet. When possible, the log should be raised and supported by the use of limbs, logs or chocks. Follow the simple directions for easy cutting.

When the log is supported along its entire length, it is cut from the top (overbuck), avoiding contact with the ground as this will greatly reduce chain sharpness.

When the log is supported on one end, cut 1/3 the diameter from the underside (underbuck). Then make the finished cut by overbucking to meet the first cut.

When the log is supported on both ends, cut 1/3 the diameter from the top (overbuck). Then make the finished cut by underbucking the lower 2/3 to meet the first cut.

When bucking on a slope, always stand on the uphill side of the log. When "cutting through", to maintain complete control, release the cutting pressure near the end of the cut without relaxing your grip on the handles. Do not let the chain contact the ground. After completing the cut, wait for the saw chain to stop before moving the electric chain saw. Always stop the motor before moving from tree to tree.

Troubleshooting Table

WARNING: Switch off and remove the battery pack before investigating fault.

Disposal

Do not dispose of electric power tools with domestic refuse. The electric power tool is shipped in packaging to reduce transport damage. This packaging is a raw material and can be reused or fed back into the raw material cycle. Take defective components to a special refuse collection point. Ask about these at your specialist shop or local council.

Batteries

Think of the environment when disposing of batteries. Contact your local authorities to find out where your nearest disposal area is. Do not dispose of batteries with domestic refuse. Do not dispose of by burning, risk of explosion.

Cleaning and Maintenance

Danger! Always remove the battery pack before making adjustments to the equipment.

• Keep all safety devices, air vents and the motor housing free of dirt and dust. Wipe the equipment with a clean cloth or blow it with compressed air at low pressure.
• Clean the device immediately each time you have finished using it.
• Clean the equipment regularly with a moist cloth and some soft soap. Do not use cleaning agents or solvents; these could attack the plastic parts of the equipment. Ensure that no water can seep into the device.

Maintenance: There are no parts inside the equipment which require additional maintenance.

Storing

Store the equipment and accessories in a dark and dry place at above freezing temperature. The ideal storage temperature is between 5 and 30°C. Store the electric tool in its original packaging.

Charger Indicator