PROBLEMS DIAGNOSTICS 12
AXH1157-UK (ENG) L3500 L4700 F7000 [FPT S3A] 127
12.3 - Brakes
PROBLEM CAUSE SOLUTION
The vehicle does not brake Lack of oil in the oil - brakes tank Refill the tank and / or Purge the
system
Loss of fluid from the circuit Check for leaks
Brake discs worn Replace the brake discs
Brake master cylinder failure Repair or replace
Unsuitable fluid in the circuit or in the
differential sump
Check the brake oil specifications
indicated
12.4 - Steering wheel
TROUBLE CAUSE SOLUTION
The machine runs sideways
The wheels are not aligned
The wheels are not correctly aligned Align them
Steering selection error Put back the lever in a different
steering mode
Control distributor failure Repair or replace the distributor
Leakage from the steering wheel
hydraulic cylinders
Replace the gaskets
12.5 - Drum
PROBLEM CAUSE SOLUTION
The drum does not turn on
itself
Drum rotation hydraulic pump failure Install a pressure gauge and check the
pressure
Low operating pressure Calibrate the distributor
Hydraulic motor failure Disconnect the drain hose and check
for proper oil spill. Replace if necessary
Electrical buttons failure
(if installed)
Check the current on the coil and if
the coils are burnt
The counter-frame does not
turn
(if installed)
Low operating pressure Calibrate the distributor (services
pump)
Hydraulic motor failure Disconnect the drain hose and check
for proper oil spill. Replace if necessary
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