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13

MAINTENANCE

CLEANING THE MOWER

Keep all safety devices, air vents, and motor housing free of debris and dirt. Wipe down the equipment with a 
cloth and/or compressed air. It is highly suggested that you clean the device after every use. Do not use cleaning 
agents, as these can attack the plastic and weaken the structural integrity of the lawn mower. Remove deposits 
from the guard hood with a brush.

CARBON BRUSHES

The carbon brushes need to be replaced by a qualified service technician. Do not attempt to replace them your-
self.

LUBRICATION

Before storing for long periods of time and also directly after a long period of storage, it is recommended to lubri-
cate the following parts of the lawn mower with a light layer of oil:

- Springs on the rear and side discharge doors
- Height adjustment lever and parts
- Axle and inner surface of the wheels
- Motor shaft (underneath blade assembly)

CHANGING THE CUTTING BLADE

WARNING: 

Always be sure to remove the battery before adjusting, cleaning, or 

checking a function on the tool.

1. After removing the battery and the 
switch key from the lawn mower, turn the 
mower onto its side to reveal the underside 
of the machine.

2. Place a block of wood or a stop of some 
kind between the blade and the edge of 
the deck to prevent the blade from turning 
freely.

3. Using a wrench (not provided), loosen 
the blade nut (Fig. G - 1) on the bottom of 
the unit. Remove the blade nut, the washer 
(Fig. G - 2), and the blade (Fig. G - 3) from 
the machine.

Fig. G

1

2

3

4. Put the new blade onto the shaft and replace the blade washer and the blade nut.

5. Tighten the blade nut to somewhere between 230 to 300 inch pounds worth of torque. Once the blade is se-
cure, check by hand that everything rotates as it should.

Summary of Contents for 40441

Page 1: ...t will supply you years of rugged trouble free performance Pay close attention to the rules for safe operation warnings and cautions If you use your tool properly and for intended purpose you will enj...

Page 2: ...inches to 4 inches 40V Max Lithium Ion 2 Ah 4 Ah 100 120V AC 60Hz 100W 42V DC 2A 19 7 inches 500 mm 40441 100 40401 2Ah and 40404 4Ah 40400 2 Maintenance WEN plans to continue to add more and more ite...

Page 3: ...d draw you in ALWAYS wear non slip footwear 8 ALWAYS remove the battery when making adjustments changing parts cleaning or working on the tool 9 KEEP GUARDS IN PLACE AND IN WORKING ORDER 10 AVOID ACCI...

Page 4: ...iage statues of fallen political leaders or some kind of other object may be blocking your view 7 Do not mow near any steep drop offs such as cliffs ditches etc 8 Use caution when mowing hills Never r...

Page 5: ...y Do not use an extension cord unless it is absolutely necessary Using the wrong damaged or im properly wired extension cord poses a risk of fire and electric shock If an extension cord must be used p...

Page 6: ...cts on the battery pack Do not place a battery pack near anything that may cause a short circuit such as paper clips coins keys screws nails and other metallic objects A short circuited battery pack p...

Page 7: ...ischarge Do not use battery that have been exposed to heat during the charging process as the battery cells may have suffered dangerous damage Do not use battery that have suffered curvature or deform...

Page 8: ...is for indoor use only Do not expose either the tool the battery or the charger to rain or use in damp locations GUIDELINES FOR EXTENSION CORDS Make sure your extension cord is in good condition When...

Page 9: ...n it into operating position Once the handle has been properly positioned retighten the handle locking knobs SETTING THE HEIGHT OF THE UPPER HANDLE There are three different holes Fig A 2 on the side...

Page 10: ...outh of the bag Lift the rear discharge door While holding the door open place the grass catcher with handle side up into the grooves under the hinge of the rear discharge door making sure that the ho...

Page 11: ...inserted and latched into position To remove the battery press the release tab and slide the battery out of the lawn mower There are battery meters available on both the batteries themselves as well...

Page 12: ...able objects hidden within the grass with flags in order to avoid them during mowing operations 3 When cutting thicker and longer grass move slower to allow the blades to work at their own speed Do no...

Page 13: ...ide discharge doors Height adjustment lever and parts Axle and inner surface of the wheels Motor shaft underneath blade assembly CHANGING THE CUTTING BLADE WARNING Always be sure to remove the battery...

Page 14: ...charger at normal room temperature Do not store it in excessive heat Do not use the charger in direct sunlight or in damp conditions Do not charge outside Recharge at room temperature If the battery i...

Page 15: ...move the battery before storing Store in a clean dry place Cover it in order to provide added protection Always store battery and charger indoors This shipment contains lithium ion batteries Please ha...

Page 16: ...16 EXPLODED VIEW AND PARTS LIST...

Page 17: ...crews 2 53 40439 053 Decorative Cover 1 54 40439 054 Wheel Cover 2 55 40439 055 Retaining Ring 4 56 40439 056 Nylon Sleeve 8 No Part No Description Qty 57 40439 057 Big Wheel 2 58 40439 058 Wheel Shaf...

Page 18: ...repaid by the purchaser The prod uct must be shipped in its original container or an equivalent properly packed to withstand the hazards of ship ment The product must be fully insured with a copy of t...

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