Maintenance
Drive Belt Adjustment
Maintenance doc092820 4-10
4
4.11 Drive Belt Adjustment
WARNING! Do not for any reason adjust the engine drive belts or belt
support bracket with the engine running. Doing so may result in seri-
ous injury.
See Table 4-2. Check the drive belt tension after the first 20 hours, and every 50 hours thereafter.
See the table below for drive belt tension specifications for your model sawmill.
1. Remove the two belt covers located underneath the engine.
2. For Manual Clutch Handle: Loosen the drive belt turnbuckle jam nuts. Turn the turnbuckle counter-
clockwise (as viewed from the top) to tighten the belt, clockwise to loosen the belt.
See Figure 4-7.
3. For Autoclutch Option: Place a wrench on the flats at the top of the turnbuckle. Use a second
wrench to turn the bottom-most jam nut clockwise (as viewed from the bottom) to tighten the belt,
counterclockwise to loosen the belt.
Engine/Motor Belt Tension
E20 7/16” (11mm) deflection with 16 lbs. of deflection force
E25 7/16” (11mm) deflection with 16 lbs. of deflection force
D42 7/16” (11mm) deflection with 16 lbs.(7,2kg) of deflection force
TABLE 4-2
FIG. 4-7
Loosen
jam nuts
3H0287B
Turnbuckle
counterclockwise
to tighten belt
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