24
CHAIN TENSION (See Fig. 15 - 16.)
W A R N I N G
To avoid possible serious injury, never touch or adjust the chain while the motor is running. The
saw chain is very sharp. Always wear protective gloves when performing maintenance involving the
chain.
•
Stop the motor and disconnect from power supply before setting the chain tension. Make sure
the guide bar nut is loose enough to finger tighten, turn the chain tensioning screw clockwise to
tension the chain. Refer to Replacing the Bar and Chain for additional information.
NOTE: A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain
is snug, but it can be turned by hand without binding.
•
Chain must be retensioned whenever the flats on the drive links hang out of the bar groove as
shown in Fig. 15.
•
During normal operation, the temperature of the chain will increase. The drive links of a
correctly tensioned warm chain will hang approximately 1/16” (1.3 mm) out of the bar groove,
as shown in Fig. 16.
NOTE: New chain tends to stretch. Check chain tension frequently and tension as required.
C A U T I O N :
Chain tensioned while warm may be too tight upon cooling. Check the “cold tension” before next
use.
MAINTENANCE
Fig. 15
Fig. 16
APPROX 1/16” (1.3 mm)
FLATS ON DRIVE LINKS
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