Service Manual User Manual

Section 2
2-28
Figure 2–36. Cummins injector and high-pressure
fuel line locations.
4. Tighten the fitting to 22 lb/ft (30 Nm). Repeat this
procedure for each fitting until the engine runs
smoothly. With the engine running, visually check for
leaks. Turn the ignition switch OFF.
2.12.8 Engine Fan Belt
Figure 2–37. Inspect the engine fan belt
every 1,000 hours of engine operation.
1. Ground the attachment, place the travel select lever
in NEUTRAL (N), engage the parking brake switch
and shut off the engine. Allow engine to cool.
2. Unlock and open the engine cover.
3. Inspect the fan belt. Replace if cracked or frayed.
4. Check fan belt tension midway between the crankshaft
and alternator pulleys (Fig. 2–38). Deflection should
be 1/4" to 3/8" (6,4 to 9,4 mm) with an applied force
of 13 to 15 pounds (6 to 7 kg).
Figure 2–38. Perkins engine fan belt adjustment points.
5. If the fan belt needs adjustment, loosen both
alternator mounting bolts and use a fan-belt tensioner
to carefully pry the alternator to tighten the belt. DO
NOT overtighten. Retighten the alternator mounting
bolts.
6. Recheck fan belt deflection. Adjust as necessary.
7. Close and lock the engine compartment cover.
1. Ground the attachment, place the travel select lever
in NEUTRAL (N), engage the parking brake switch
and shut off the engine. Allow engine to cool.
2. Unlock and open the engine cover.
3. The Cummins engine is equipped with an automatic
belt tensioner (Fig. 2–39). Rotate the tensioner up
and remove the fan belt. Inspect the fan belt and
tensioner bearing. Inspect the fan belt. Replace if
cracked or frayed. Spin the bearing, and check for
resistance or rough spots in bearing travel.
4. Spin the fan and check for wobble or excessive play.
Maximum play should be 0.006 inch (0,15 mm).
5. To install the fan belt, position the belt over the
grooved pulleys. While holding the tensioner up, slide
the belt over the water pump pulley.
OS0990
High-pressure
Fuel Lines
Injector
0001
OS0880
MS2190
PERKINS ENGINE
0A0362
Alternator
Pulley
Fan
Pulley
Crankshaft
Pulley
1/4" to 3/8"
(6,4 to 9,4mm)
Deflection
CUMMINS ENGINE
Model 3606
•
Origin 10/99