Wen 40421, Instruction Manual

Page 1: ...es for safe operation warnings and cautions If you use your tool properly and for its intended purpose you will enjoy years of safe reliable service NEED HELP CONTACT US Have product questions Need technical support Please feel free to contact us TECHSUPPORT WENPRODUCTS COM 1 800 232 1195 M F 8AM 5PM CST For replacement parts and the most up to date instruction manuals visit WENPRODUCTS COM 40V MA...

Page 2: ...or Pole Saws 6 Specific Rules for the Battery Charger 8 About the Battery 10 About the Charger 11 Electrical Information 12 BEFORE OPERATING 13 Know Your Pole Saw 13 Assembly Adjustment 14 OPERATION MAINTENANCE 17 Operation 17 Maintenance 19 Storage 20 Exploded View Parts List 21 Warranty Statement 24 ...

Page 3: ... as well as helpful assembly and operating instructions for your tool NOTE The following safety information is not meant to cover all possible conditions and situations that may occur WEN reserves the right to change this product and specifications at any time without prior notice At WEN we are continuously improving our products If you find that your tool does not exactly match this manual please...

Page 4: ...es and refrig erators There is an increased risk of electric shock if your body is earthed or grounded 3 Do not abuse the cord Never use the cord for carrying pulling or unplugging the power tool Keep cord away from heat oil sharp edges or moving parts Damaged or entangled cords increase the risk of electric shock 4 If operating a power tool in a damp location is unavoidable use a ground fault cir...

Page 5: ...er tools are dangerous in the hands of untrained users 5 Maintain power tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the power tool s operation If damaged have the power tool re paired before use Many accidents are caused by poorly maintained power tools 6 Use the power tool accessories and tool bits etc in accordance with these ...

Page 6: ...ris can result in serious injury 6 Do not operate the saw while sitting or standing in a tree Maintain a safe secure stance at all times Only use the saw when standing on solid safe and level ground 7 Use particular caution when cutting brush and young trees The thin material may get caught in the chain and hit you or throw you off balance 8 Carry the switched off pole saw using the handle with th...

Page 7: ...tact WEN customer service at 1 800 232 1195 REDUCING KICKBACK Kickback can occur when the tip of the guide bar touches an object or when the wood closes in and pinches the saw chain inside of the cut Tip contact can kick the guide bar up and back towards the op erator Pinching the saw chain along the top of the guide bar can push the bar rapidly towards the op erator Either of these reactions may ...

Page 8: ...ck the charger vents Keep them clear to allow for proper ventilation Do not allow smoking or open flames near a charging battery pack Vented gases may explode NOTE The safe temperature range for charging the battery is 50 F to 104 F Do not charge the battery outside in freezing weather charge it at room temperature 4 MAINTAIN CHARGER CORD When unplugging the charger pull the plug not the cord from...

Page 9: ...CHEMICALS CAUSE SERIOUS BURNS Never let a damaged battery pack contact the skin eyes or mouth If a damaged battery pack leaks battery chemicals use rubber or neoprene gloves to safely dispose of it If skin is exposed to battery fluids wash the affected area with soap and water and rinse with vinegar If eyes are exposed to battery chemicals immediately flush with water for 20 minutes and seek medic...

Page 10: ...fter it has been fully charged 6 Protect batteries and the tool from overloads Overloads will quickly result in overheating and cell damage inside the battery housing even if this overheating is not apparent externally 7 Avoid damage and shocks Immediately replace batteries that have been dropped from a height of more than one meter or those that have been exposed to violent shocks even if the hou...

Page 11: ...charged or partially charged battery pack will result in overcharging and cell damage Do not leave battery in the charger for days on end Never use or charge a battery if you suspect that it has been more than 12 months since the last time they were charged There is a high probability that the battery pack has already suffered dangerous damage ex haustive discharge Do not use battery that have bee...

Page 12: ...rent your product will draw An undersized cord will cause a drop in line voltage resulting in loss of power and overheating The table below shows the correct size to be used according to cord length and ampere rating When in doubt use a heavier cord The smaller the gauge number the heavier the cord AMPERAGE REQUIRED GAUGE FOR EXTENSION CORDS 25 ft 50 ft 100 ft 150 ft 2 5A 18 gauge 16 gauge 14 gaug...

Page 13: ... charger is in standby mode On Flashing Charging The battery is charging Off On Fully Charged The battery is fully charged and should be removed from the charger Flashing Off Error There is a problem with the battery Contact customer service at 1 800 232 1195 for assistance in replacing the battery Flashing Flashing Temperature Error The temperature is either too high or too low If the battery is ...

Page 14: ... 2 Fill the oil tank Fig 1 1 with saw chain oil In doing so make sure that no dirt gets into the oil tank so that the oil nozzle does not clog Close the oil tank cap REMOVING AND CHARGING THE BATTERY 1 Press the battery release button located in front of the battery compartment to release the battery Slide the battery out of the saw 2 Slide the battery into the charger Refer to Tables A p 13 B bel...

Page 15: ...the saw chain can be lifted 1 8 inch 3 mm from the center of the guide bar Since the saw chain heats up during operation its length can therefore fluctuate Check the chain tension every 10 minutes of operation and adjust as necessary par ticularly for new saw chains Slacken the saw chain after the work is completed since it shortens when cooling down In doing so you can elongate the chain s life a...

Page 16: ...n oil The use of the pole saw without enough saw chain oil will damage the unit Only use special saw chain oil Other oils will run the risk of damaging the unit and voiding the war ranty Take note of temperature conditions Using the saw at various temperatures requires the use of dif fering oils To ensure a sufficient layer of lubricant at lower temperatures use liquid oil low viscos ity ADJUSTING...

Page 17: ...ring protection and a face guard to provide protection against falling and recoiling branches SAFETY WARNINGS 1 In order to ensure safe work do not operate the saw at an angle of over 60 degrees 2 Never stand below a branch that is being sawed 3 Exercise caution when sawing branches under tension or branches that are splintering 4 Make sure to safeguard against the risk of injury from falling bran...

Page 18: ...e cut branches to fall to the ground At the end of the cut the weight of the saw suddenly increases for the user since it is no longer being supported by a branch There is a risk of losing control of the saw so make sure to stay alert during the entire sawing operation Only pull the saw out of a cut while the saw is running By doing so you prevent the chain from jam ming in the wood Do not saw wit...

Page 19: ...age 14 Make sure the battery is fully charged before storage in order to maximize the life of the battery Do not store the battery pack on the tool Remove the battery from the tool before storage After charging the battery pack may be stored in the charger as long as the charger is not plugged in Store the charger at normal room temperature Do not store it in excessive heat Do not use the charger ...

Page 20: ...ore the battery pack or charger where temperatures may exceed 104 F such as in direct sunlight or inside a vehicle or metal building during the summer Always store battery and charger indoors THIS SHIPMENT CONTAINS LITHIUM ION BATTERIES Please handle with care Fragile contents Keep dry A flammable hazard exits if this package becomes damaged Special procedures must be followed in the event this pa...

Page 21: ...EXPLODED VIEW PARTS LIST 21 EXPLODED VIEW PARTS LIST ...

Page 22: ...1 038 Quick Clamping Adjust ing Bolt 1 20 6 40421 029 Connecting Bracket 1 20 7 40421 030 Fixed Pin 2 No Part No Description Qty 20 8 4021 039 Locking Nut 1 20 9 40421 034 Flat Gasket 1 20 10 40421 035 Locking Nut 1 20 11 40421 032 Countersunk Head Screws 1 20 12 40421 036 Washer 1 20 13 40421 037 In Pipe 1 21 40421 038 Button 1 22 40421 039 Connecting Handle Of Left Casing 1 23 40421 040 Connecti...

Page 23: ...t Rubber Sleeve 1 48 3 4017 012 Oil Tank Delivery Con nection 1 48 4 4017 011 Sponge 1 48 5 4017 010 Oil Box Joint Core Plug 1 48 6 4017 008 Valve 1 48 7 40421 076 Oil Tank 1 49 40421 077 End Cap Assembly 1 49 1 40421 078 Knob 1 49 2 40421 079 Machine Screw 2 49 3 40421 080 Adjusting Knob 1 49 4 40421 081 End Cover 1 49 5 4021 086 Axis With Circlips 1 49 6 40421 083 Circle Wheel 1 50 40421 084 Pus...

Page 24: ...ts and products may need to be sent to WEN before the replacements can be shipped out Upon the confirmation of a WEN representative your product may qualify for repairs and service work When re turning a product for warranty service the shipping charges must be prepaid by the purchaser The product must be shipped in its original container or an equivalent properly packed to withstand the hazards o...