7-10
Publication: 0028607
TROUBLESHOOTING
7
Hydraulics
No main hydraulic oil
pressure
Work mode not enabled,
still in road mode
Enable work mode.
Hydraulic pump not
engaged
Shift the transmission into D drive;
transmission controller will show 6-4.
Air solenoid not getting a
signal
Locate the signal problem; repair or
replace faulty components.
See Table 7-1: Mechanical
Troubleshooting.
Transfer case will not
engage
Chassis air pressure too
low
Run engine until air pressure reaches
100 psi.
Shift MODE rocker switch to ROAD
and back to WORK.
Boom, hose reel, and
body functions not
moving
Hydraulic valve fouled
with debris
• Shift the hydraulic valve using the
manual override. This may free
the fouled valve. A dirty cartridge
valve may need to be cleaned or
replaced.
• Change the hydraulic filter.
Directional valve not
controlling the function
• Set the manual override on the
associated proportional valve by
turning the screw inward, starting
at about 25%.
• If the directional solenoid LEDs
are lit and the function moves, the
directional valve and coil are
good.
• If the directional solenoid LEDs
are not lit and if using manual
directional overrides moves the
function, the directional valves are
good.
• If the function does not work
using the directional valve
overrides, the directional or
proportional valve may have
failed.
Failed directional or
proportional valve
Connect pressure gauge to manifold
port and check for pressure.
Hydraulic valve fouled
with debris
See Table 7-1: Mechanical
Troubleshooting.
LED on solenoid
connector or I/O module
not lit when function is
enabled
• Verify that the proper mode is
selected for the desired function.
• Locate and repair or replace.
Table 7-2: Electrical Troubleshooting (Continued)
Function
Symptom
Probable Cause
Solution
Содержание Camel 1200 (Dump Body)
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