MAINTENANCE
CHAIN TENSION
See Figures 17 - 18.
Stop the engine before setting the chain tension. Make sure the guide bar nut is loose to finger tight, turn the chain tensioning screw clockwise to tension the chain. Refer to Replacing the Bar and Chain for additional information.
A cold chain is correctly tensioned when there is no slack on the underside of the guide bar and the chain is snug, but can be turned by hand without binding.
The chain must be
During normal operation, the temperature of the chain will increase. The drive links of a correctly tensioned warm chain will hang approximately .050 in. (1.25 mm) out of the bar groove.
NOTE: New chains tend to stretch; check chain tension frequently and tension as required.
CAUTION:
A chain tensioned while warm may be too tight upon cooling. Check the “cold tension” before next use.
CHAIN OILER
See Figure 19.
Use Premium Bar and Chain Oil. It is designed for chains and chain oilers and is formulated to perform over a wide temperature range with no dilution required.
Remove the cap and carefully pour approximately 8 oz. of the bar and chain oil into the chain oiler tank.
Replace the cap and tighten securely.
Check and refill the chain oiler tank every time the engine is fueled.
NOTE: Do not use dirty, used, or otherwise contaminated oils. Damage may occur to the oil pump, bar, or chain.
FLATS
Fig. 17
APPROX .050 IN. (1.25 mm) |
| Fig. 18 |
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CHAIN OILER TANK
REPLACE
CAP
REMOVE
CAP
Fig. 19
13