Section E - Hydraulics
Fault Finding
Loader Circuit
E - 44 E - 44
9803-9450-2
Key to Cause Remedy Page Ref.
1 Insufficient hydraulic fluid. Check for leaks and top up as required.
2 Hydraulic leaks in system. Check hoses, replace as required.
3 Main relief valve (MRV) setting
incorrect.
Check and adjust as required. K
Loader Main Relief
Valve
(M.R.V.) ( T E-60)
4 Low loader pump flow. Check pump flow, if necessary service or replace
pump.
5 Hydraulic filter clogged. Change hydraulic filter.
6 Charge filter by-pass valve leaking. Check condition of hydraulic filter.
Check operation of by-pass valve.
7 Charge pressure incorrect. Check relief valve or charge pump
8 Servo pressure low Carry out charge pressure check. K
Transmission
Charge
Pressure ( T E-62)
Check for blocked service feed hose or faulty
joystick.
9 Loader pump flow low. Check flow rate.
10 Neutral circuit or low pressure lines
leaking, damaged, trapped or kinked.
Check pipe lines and replace as required.
11 Restriction in neutral circuit lines. Check hoses and pipes, replace as necessary.
12 Air in hydraulic system Bleed System K
Bleeding the
Hydraulic
System ( T E-53)
13 Service pipe lines leaking, damaged,
trapped or kinked.
Check hoses and pipes, replace as required.
14 Ram or pipe lines from ram leaking. Check and rectify as required.
15 Valve spool not operating. Check for leaks, rectify as required.
Make sure that spool lock-out is operating (check
for faulty wiring, solenoid sticking, burr on spool,
etc.)
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