MALFUNCTIONS 8
MHL360 E 8.9
8.9.11 Hydraulic oil exceeds max. admissible temperature
Thermostat in fan motor defective.
Replace thermostat and check fan speed.
Insufficient hydraulic oil level.
Top up hydraulic oil to mark on sight glass.
Oil cooler dirty or damaged.
Clean oil cooler, check and replace if neces-
sary.
8.9.12 Swing brake does not lock
1 Defective swing brake. Replace foot switch seal, replace discs.
8.9.13 Uppercarriage does not rotate
Secondary valves damaged or wrongly ad-
justed.
Re-adjust secondary valves; replace if required.
2 Swing gear motor or swing gear defective –
internal wear.
Replace hydraulic motor.
8.9.14 Hydraulic cylinders sustaining losses
Seals in hydraulic cylinders are worn.
Secondary valves damaged or wrongly ad-
justed.
Check secondary valves; replace if necessary.
Check hose rupture safety valves.
8.9.15 Faults in the electrical system
1 Outside and/or internal lighting not function-
ing.
Check cables, connections, bulbs, and fuses.
Windshield wiper not working.
Check cables, connections and fuses. Examine
windshield wiper for mechanical damage Cor-
rosion on contacts between windscreen and
cab. Replace complete windscreen wiper if
necessary. Close the windscreen and lock it
into place correctly.
Check the cables, connections and fuses. If
necessary, replace the entire horn and have a
specialist find out what caused the defect.
Warning/indicator instruments not working
accurately.
Have an expert locate the source of the prob-
lem/malfunction and eliminate it.
Starting system does not work satisfactorily.
Check the generator (V-belt tension). Check the
charge capacity of the batteries. Test starter
functions. Check the connection and condition
of the power and earthing cables. Have the
function of the ignition lock checked and re-
place if necessary. Check the battery isolator
switch.
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