MAINTENANCE
REPLACING BAR AND CHAIN
See Figures 27 - 31.
WARNING:
Before performing any maintenance, make sure the tool is unplugged from the power supply. Failure to heed this warning could result in serious personal injury.
CAUTION:
Always wear gloves when handling the bar and chain; these components are sharp and may contain burrs.
WARNING:
Never touch or adjust the chain while the motor is running. The saw chain is very sharp; always wear protective gloves when performing maintenance to the chain to avoid possible serious lacerations.
nUnplug the chain saw and remove power cord.
nUsing the scrench, loosen the guide bar nut completely and remove chain cover assembly (take care not to lose sleeve).
nRemove the bar and chain from the mounting surface.
nRemove the old chain from the bar.
nLay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face the opposite direction, turn the loop over.
nPlace the chain drive links into the bar groove. NOTE: Make certain of direction of chain.
nPosition the chain so there is a loop at the back of the bar. Hold the chain in position on the bar and place the loop around the sprocket of the chain saw. Fit the bar flush against the mounting surface so that the bar stud is in the long slot of the bar.
RECOMMENDED BAR AND CHAIN COMBINATIONS
Bar Part Number - 18 in.
301304001
Chain Part Number
301139003
SPROCKETBAR
SLEEVE |
| CHAIN |
|
CHAIN TENSION |
| GUIDE |
PIN HOLE |
| |
| CHAIN | BAR NUT |
|
| |
| COVER |
|
| ASSEMBLY |
|
|
| Fig. 27 |
CHAIN DRIVE
LINKS
BAR |
|
GROOVE | Fig. 28 |
| |
TO | TO |
LOOSEN | TIGHTEN |
SCRENCH ON BAR
GUIDE BAR NUT
CHAIN
TENSIONING 
KNOB
Fig. 29
22