
Avant 220/225
75
.
Problem
Possible cause
Remedy
Hydraulic attachment does
not work when the auxiliary
hydraulics control lever is
moved
Attachment hoses are not coupled
or the multi connector is not fully
locked
Make sure that the multi connector is properly connected.
Faulty or damaged quick couplers
(will restrict or stop oil flow)
Replace quick couplers in multi connector.
Fault in attachment
Check with another attachment, if possible.
Attachment hoses will not go
into the rear quick couplers
of the machine
There is back pressure in the
auxiliary hydraulics line
Release the pressure by moving the rear auxiliary
hydraulics control lever in both directions.
Hydraulic oil overheats
Control valve not fully open
Adjust the locking plate of the aux hydraulics control lever,
see page 32.
Low hydraulic oil level
Check hydraulic oil level and condition.
Dirty, blocked or faulty hydraulic oil
cooler
Clean hydraulic oil cooler, check fan.
Check fan fuse, temperature switch, and relay.
Overload of hydraulic system
Allow to loader cool by leaving on idle, until hydraulic oil
cooler stops. Avoid operating an attachment at extreme
load continuously. Check that attachment is operated
correctly, and no flow restrictors are left half open on
hydraulic circuit.
The machine moves after
parking brake has been
engaged
The pins of the parking brake
mechanism have not locked
properly in the wheels
Drive slowly forward or backward in order to lock the
parking brake. When releasing the parking brake do this
in opposite order.
Drive and boom movements
do not work at all, engine is
running
Drive belt damaged
Check condition and tightness of drive belt.
Drive works erratically and
boom movements do not
work at all, engine is running
Low hydraulic oil level
Check hydraulic oil level and condition.
Drive and boom movements
work erratically, engine is
running
Air in hydraulic components
Move boom and steering cylinders and hold at each
extreme position to de-air the system. Check hydraulic oil
level and condition.
Hydraulic oil pushed out
from hydraulic oil filler cap,
hydraulic oil foams
Leak in hydraulic suction line
connecting tank and hydraulic
pumps allows air to sucked in
Replace suction hoses.
Thick exhaust smoke
Too much engine oil
Check engine oil level, drain if necessary.
Rich mixture
Choke is being used, turn off choke.
Carburettor setting is wrong, adjustment required. Contact
service.
Faulty carburettor
Carburettors overflow, allowing gasoline flow to engine oil
(220 only). Check carburettors, contact service.
Oil in cylinders
Worn piston rings or valve gaskets, engine overhaul
required
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