MAINTENANCE
ADJUSTING THE CHAIN TENSION
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 on the chain.
1. | Stop the engine before setting the chain tension. |
2. | Make sure the guide bar nuts are loosened to finger |
| tight and turn the chain tensioner clockwise to tension |
| the chain. |
APPROXIMATELY 1.25 mm
Fig. 53
NOTE: A cold chain is correctly tensioned when there is |
no slack on the underside of the guide bar, the chain is |
snug and can be turned by hand without binding. |
3. |
links hang out of the bar groove. |
NOTE: During normal saw operation, the temperature |
of the chain increases. The drive links of a correctly |
tensioned warm chain will hang approximately1.25 mm |
(1/8 in) out of the bar groove. To help determine the |
correct warm chain tension, the tip of the combination |
wrench can be used as a guide. See Figures 52, 53 |
and 54. |
NOTE: New chain tends to stretch: check the chain |
tension frequently and tension as required. |
CAUTION:
A chain tensioned while warm may be too tight when cool. Check the “cold tension” before next use.
FLATS ON DRIVE LINKS
Fig. 52
APPROXIMATELY 1.25 mm
Fig. 54
CHAIN MAINTENANCE
CAUTION:
Check that the switch is in the STOP “ / O ” position before working on the saw.
Use only a
For smooth and fast cutting, maintain the chain properly.
The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:
Improper filing angle of the side plate increases the risk of a severe
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