AGM sitrex MAXI 270 - Hydraulic System

Spa
67
5.4 HYDRAULIC SYSTEM
PROBLEM PROBABLE CAUSE SOLUTION
EXCESSIVELY NOISY
PUMPS AND MOTORS
A
ir in circuit.
Components worn.
Check oil level, check tightness of
suction fittings.
Repair or replace.
IRREGULAR
STEERING
A
ir in circuit.
Pressure relief valve out of
calibration.
Bleed
Recalibrate to correct value (*).
Check pump (*).
OIL TEMPERATURE TOO
HIGH
Oil level too low.
Radiator clogged.
Radiator fan not working.
Pressure relief valve out of
calibration.
Wrong oil viscosity or
degraded oil.
Top up oil level.
Clean.
Check electric motor and
thermostat.
Recalibrate to correct value (*).
Replace oil with correct type or
replace oil.
FOAM IN TANK
Oil level too low.
Air in circuit.
Top up oil level.
Find and eliminate the infiltration.
IMPURITIES IN OIL Filters defective or dirty.
Replace filters, and if necessary
replace oil, too, after having
cleaned the tank.
LOW OIL PRESSURE –
MOVEMENTS TOO SLOW
Pressure relief valve out o
f
calibration.
Pressure relief valve stuck.
Pressure relief valve failure.
Pump failure.
Recalibrate to correct value (*).
Release and recalibrate to correct
value (*).
Repair or replace (*).
Repair or replace (*).
EXCESSIVE OIL PRESSURE
– MOVEMENTS TOO
FAST
Pressure relief valve out of
calibration.
Pressure relief valve failure.
Recalibrate to correct value (*).
Repair or replace (*).
INSUFFICIENT OIL FLOW
Irregular pump suction.
Pump failure.
Check suction.
Repair or replace (*).
NO OIL FLOW
Faulty pump-to-engine
connection.
Pump failure.
Repair (*).
Repair or replace (*).