Operator's Manual
33
ENGINE MAINTENANCE
SERVICING ENGINE BELTS
Check condition and tension of all belts after first day of
operation and every 100 operating hours thereafter.
Alternator Belt (Fig. 52)
To Check Tension:
1. Open hood.
2. Check tension by depressing belt midway
between alternator and crankshaft pulleys with 22 lb. of
force. Belt should deflect 7/16 in. If deflection is
incorrect, proceed to step 3. If correct, continue
operation.
Figure 52
1. Alternator Belt
2. Brace
1
2
3. Loosen bolt securing brace to engine and bolt
securing alternator to brace.
4. Insert pry bar between alternator and engine and
pry out on alternator.
5. When proper tension is achieved, tighten
alternator and brace bolts to secure adjustment.
Cooling Fan Belt (Fig. 53)
1. Loosen lock nut on belt tensioner lever.
2. Apply 5-10 lb. of force at end of lever to set the
proper tension on the fan belt.
3. Tighten lock nut to secure adjustment.
Figure 53
1. Cooling Fan Belt 2. Tensioner Lever
2
1
ADJUSTING THROTTLE (Fig. 54)
1. Position throttle lever forward so it stops against
seat base slot.
2. Loosen the throttle cable connector on the lever
arm at the injection pump.
3. Hold the injection pump lever arm against the high
idle stop and tighten the cable connector.
Note: When tightened, the cable connector must be
free to swivel.
4. Torque the lock nut, used to set the friction device
on the throttle lever, to 40-55 inlb. The maximum
force required to operate the throttle lever should be
20 lb.
Figure 54
1. Injection Pump Lever Arm
1