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Hydraulic system – SkyTrak 6042 Service Manual User Manual

Page 257

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8.25

Model 6042 Legacy

Origin 7/02

Hydraulic System

NOTE:

When checking pressures in
circuits, refer to Section 8.7,
“Hydraulic System Testing” f
or
correct pressure readings.

Before troubleshooting any hydraulic circuit, ALWAYS begin by checking the following:

1. Hydraulic oil level in the reservoir
2. All hoses, tubes, fittings for leaks, kinks, interference, etc.
3. Air in the lines

Not

OK

Not

OK

With the boom below 40°, if

the frame sway cylinder will

not sway left, drifts or reacts

slowly, check cable

connections at the main

control valve.

Replace check valves on

frame sway cylinder.

If OK

If OK

Not

OK

Inspect pilot-operated

check valves on frame

sway cylinder.

Repair/replace cable

connections. Ensure frame

sway section of main control

valve is functioning.

Check frame sway

cylinder packing.

Repair/replace frame

sway cylinder.

NOTE:

Refer to Section 2.5.4, “Performance Specifications”
for approximate cylinder cycle times. The operation
of the system function should approximate the
times listed.

Refer to Section 10, Stabil-TRAK™ System
for further information on troubleshooting the
frame sway and stabilizer circuits.