POSSIBLE FAULTS
Many years experience of our product has allowed us to identify and classify the
most common faults which occur. In most cases it requires accurate hydraulic
and electric troubleshooting and simple rectification. In the following table we
report the most frequent inconveniences and our suggested remedies
.
(!) Checking and adjustment of oil pressures of valve settings must be
carried out by an authorized service agent, under penalty of warranty
forfeiture.
Operations which can be carried out by the user
.
Faults Cause Remedies
The crane does not Vehicle non in level position Stabilize the vehicle
rotate properly
Lack of lubrication Grease the bushes
The extension booms Lack of lubrication of the Grease the guide shoes
do not completely guide shoes
extend or work jerkily
Vibrations in crane Shortage of oil Check the level and
operations top up if necessary
Obstructed filters Clean or replace the filter
cartridge
Noteable decrease in Obstructed filters Clean or replace the filter
movement speed cartridge
Operations to be carried out by a service center.
Faults Cause Remedies
The crane does not lift Non efficiency of the Replace the pump
the loads indicated on pump
the capacity plate Main pressure valve not Check the pressure,
properly adjusted, blocked adjust the valve
or out of service
Ram seals are not properly Replace the seals
fitted
A boom of the crane The safety check valve of Replace the valve
does not hold up the the ram is open
load and visually lowers Oil leaks inside the ram Defective seals, replace
them
The crane does not Valves controlling the Adjust the valves
rotate properly rotation not adjusted
Relief valves of the Adjust the valves
distributor not adjusted
Wear of the seals of the Replace the seals
rotation cylinder
The extension booms Wear of guide shoes Check the guide shoes
do not completely wear, replace if necessary
extend or work jerkily
Vibrations in crane Non efficient pump Check the pump
operations
Noteable decrease in Non efficient pump Check the pump
movement speed
c XIII
POSSIBLE FAULTS
F 240
34
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