TABLE OF CONTENTS
Specifications .................................................................................. 2
Introduction .................................................................................... 3
General Safety Rules ....................................................................... 4
Specific Safety Rules for Chainsaws ................................................ 6
Specific Safety Rules for the Battery & Charger ............................... 8
About the Battery .......................................................................... 10
About the Charger ......................................................................... 11
Electrical Information .................................................................... 12
Know Your Chainsaw ..................................................................... 13
Assembly & Adjustments .............................................................. 14
Operation ...................................................................................... 17
Maintenance .................................................................................. 21
Storage ......................................................................................... 22
Exploded View & Parts List ........................................................... 23
Warranty Statement ....................................................................... 25
SPECIFICATIONS
Model Number 40417
Motor 40V Brushless Motor
Max Motor Speed 8200 RPM (No Load)
Max Chain Speed 49 feet per second
Saw Chain 16 inches, Oregon
Saw Chain Model 91PJ056X
Guide Bar Model 160SDEA041
Battery 40V Max Lithium Ion, 4Ah
Charger Input 100-120V AC, 60Hz, 100W
Charger Output 42V DC, 2A
Weight (w/ Battery) 12 lbs
Product Dimensions 32 x 8.5 x 10 inches
Battery Model 40404
Charger Model 40400C
WEN plans to continue to add more and more items to our 40V line. For an
up-to-date list of the 40V cordless tools compatible with the included battery
and charger, visit wenproducts.com and search model number 40401 (2Ah) or
40404 (4Ah). In the battery’s description, there will be a list of current prod-
ucts that this battery can be used with.
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