Service Manual User Manual

General Information, Specifications, and Maintenance
2-29
Figure 2–39. Cummins engine fan belt adjustment points.
6. Close and lock the engine compartment cover.
2.12.9 Hydraulic System Oil And Filter
A. Hydraulic Oil Level Check
Figure 2–40. Check the hydraulic oil level
every 10 hours of engine operation.
1. Level the vehicle, ground the attachment, place the
travel select lever in NEUTRAL (N), and engage the
parking brake switch.
2. Fully retract all hydraulic cylinders and shut off the
engine.
3. Allow the hydraulic oil to cool.
4. Unlock and open the engine cover. Locate the hydraulic
oil sight glass along the vertical wall of the hydraulic
oil tank (Fig. 2–41). Check the level of the hydraulic
oil in the tank. The hydraulic oil level should be visible
at the lower end of the sight glass. If hydraulic oil is
not visible, remove the hydraulic oil fill cap and add
ISO Grade 46 hydraulic oil until the hydraulic oil level
is visible at the lower end of the sight glass. DO NOT
overfill.
Figure 2–41. Check the hydraulic oil level
via the sight glass.
5. Reinstall the hydraulic oil fill cap. Close and lock the
engine cover.
B. Hydraulic Oil and Hydraulic Oil Filter Change
Figure 2–42. Change the hydraulic oil filter after the first 50
hours of engine, and every 1,000 hours thereafter.
Change the hydraulic oil filter after the first 50 hours of
engine operation, and every 1,000 hours of operation
thereafter.
Also, the hydraulic oil filter must be changed anytime the
hydraulic oil filter restriction warning indicator light on the
operator's instrument panel begins to flicker ON and OFF
at high idle (Fig. 2–43).
OS0770
Automatic
Belt Tensioner
Alternator
Pulley
Water Pump
Pulley
Pulley
Crankshaft
Pulley
OS0660
10
MS2140
OS1590
Hydraulic Oil
Sight Glass
OS0840
0001
MS2190
Model 3606 • Origin 10/99