Removing And Installing The Guide Bar And Saw Chain - Champion 100647 Operator's Manual

100647 - ChAiNSAw
Removing and installing the Guide bar and
Saw Chain

The guide bar, saw chain, and saw bearings will wear more
rapidly if the saw chain is not properly tensioned. Maintaining
proper chain tension will improve cutting performance and
prolong the life of the saw chain.

To prevent serious injury, never touch the saw chain or adjust
the chain tension while the unit is running. Disconnect the
spark plug wire to prevent the unit from starting accidentally.

The saw chain is very sharp. Always wear heavy-duty
protective gloves when handling or performing maintenance on
the saw chain.
The guide bar and saw chain need to be removed when certain
maintenance procedures are performed, such as when rotating
the guide bar. When replacing old guide bars and saw chains with
new parts, always use the manufacturer's specified replacement
parts.
Removing the Guide Bar and Saw Chain
1. Allow the unit to fully cool after use. Place saw on flat and
level surface.
2. On the clutch housing, remove (turning nuts counter
clockwise) the two 13 mm nuts that secures the housing to
the engine assembly.
3. Wearing protective gloves, hold the guide bar tip up, grasp
clutch cover and wiggle it loose (Fig. 28).
CAUTiON
wARNiNG
wARNiNG
Figure 28
4. Remove housing, review for any potential damage, clean and
set aside (Fig. 29).
5. Slide bar toward engine to loosen chain (Fig. 30).
6. Carefully remove chain from bar, then from around gear drive
clutch.
7. Remove bar from saw.
8. Clean debris, dirt, etc, from saw and bar oil ports. Inspect for
damage, (replace all damaged components).
Installing the Guide Bar and Saw Chain

Bar and chain are sized appropriately to each saw and gear
drive for chain, ONLY use approved compatible components for
this saw.
1. Replace new bar where text is upright. Start by inserting bar
toward gear drive clutch, rotate into position with two bolt
holes protruding through slot in bar.
2. Install new blade with teeth facing correct direction. Start by
wrapping blade around gear driven clutch. Position blade in
alignment with gear sprocket. Then wrap blade around front
of bar. Being sure align blade with teeth on front of bar as
well as bar groove.
3. Turn the chain tensioning screw so the post on the cover
aligns with the mating hold on the guide bar.
MAiNTENANCE
Figure 29
Figure 30
CAUTiON
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