Maintenance
Drive Belt Adjustment
Maintenance
30S97doc041910
5-20
5
5.11 Drive Belt Adjustment
WARNING!
Disconnect and lockout power before perform-
ing any service to the electrical system. For battery-pow-
ered equipment, disconnect the negative battery terminal
cable. Failure to do so may result in injury and/or electrical
system damage.
WARNING!
Before performing service near moving parts
such as blades, pulleys, motors, belts and chains, first turn
the key switch to the OFF (#0) position and remove the key.
If the key is turned on and moving parts activated, serious
injury may result.
NOTE:
If your sawmill is equipped with the Autoclutch Option, see the
Autoclutch Option
manual
for drive belt adjustment instructions.
WARNING!
Do not for any reason adjust the engine drive
belts or belt support bracket with the engine running. Doing
so may result in serious injury.
See Table 5-3.
See the table below for drive belt tension specifications for your model
sawmill.
1.
Remove the two belt covers located underneath the engine.
2.
Loosen the drive belt turnbuckle jam nuts. Turn the turnbuckle counterclockwise (as
viewed from the top) to tighten the belt, clockwise to loosen the belt.
See Figure 5-10.
Engine/Motor
After
First
Then
Every
Belt Tension
ALL
5 hrs
50 hrs
7/16” (11mm) deflection with 18 lbs. of deflection force
1
1
If installing a new 3/5VL drive belt (6/00+ mills), initially tension the belt to 24 lbs. then 18 lbs. for subsequent adjustments. If sawmill
equipped with 3 3/4” turnbuckle supplied prior to 9/03, replace with a revised 3 1/2” turnbuckle assembly A11576 to allow proper ten-
sioning of belt.
TABLE 5-3
50