
Maintenance
Drive Belt Adjustment
Maintenance
60HD-R04doc112210
5-16
5
5.10 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. For AC-powered equipment, follow the lockout pro-
cedure provided in the safety section (
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.
WARNING!
Do not for any reason adjust the engine drive
belts with the engine running. Doing so may result in seri-
ous injury.
Check the drive belt tension after the first 20 hours, and every 50 hours thereafter.
To check belt tension:
See Figure 5-7. Rev. A7.07+:
Measure the belt tension with a gauge. Proper tension for
a new belt is 3/8” deflection using 14 lbs. of deflection force. Use 9 lbs. of deflection force
for subsequent adjustments.
FIG. 5-7
50
Jam Nut
Adjustment Tube
3/8"
600224