Replacement Part List
11
Adjust the Chain Stop
If the grinding wheel is not touching the chain tooth that needs 
to be sharpened when the motor head assembly is folded down, 
move the chain stop as indicated below. 
1.  Loosen the chain stop locking knob so the chain stop 
adjusting knob can be screwed by hand (Fig. 7). Rotate 
the chain stop adjusting knob to move the chain stop  
(Fig. 8). 
2.  During adjusting, fold down the motor head assembly to 
see if the grinding wheel touches the tooth (Fig. 9). 
3.  When the chain stop is in the correct position, lock the 
chain stop locking knob and make sure the chain stop will 
not move anymore (Fig. 7).
4.  Flip the chain guide lock to the lock position. Make sure 
the chain is hold securely (Fig. 10).
Adjust the Grinding Depth
The grinding depth must be adjusted properly so that the 
grinding wheel will not cut too deep between the teeth, which 
will cause the metal between the teeth being cut and damage 
to the chain.
1.  Fold down the motor head assembly and check if the 
grinding wheel properly touches the inside curve of the 
tooth to be sharpened. If not, loosen the grinding depth 
locking knob on the back to adjust the grinding depth  
(Fig. 11). 
2.  Adjust the grinding depth by turning the grinding depth 
adjusting knob (Fig. 12). The grinding wheel should just 
touch the inside edge of the tooth, not the bottom of the 
tooth (Fig. 13). 
Fig. 7
Chain stop 
locking 
knob
Unlock
Lock
Fig. 8
Chain stop 
adjusting knob
Forward
Backward
Fig. 9
Motor head 
assembly
Grinding 
wheel
Chain 
tooth to be 
sharpened
Touching
Fig. 10
Unlock
Chain guide lock
Lock
Fig. 11
Unlock
Grinding depth 
locking knob
Lock










