Hydraulic system – SkyTrak 6042 Service Manual User Manual
Page 257
8.25
Model 6042 Legacy
Origin 7/02
Hydraulic System
NOTE:
When checking pressures in
circuits, refer to Section 8.7,
“Hydraulic System Testing” for
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.