Ammann AVH 7010 Instructions De Service page 33

3.5.4 Automatic motor cut-off
Machines are equipped with a safety motor cut-off. The motor
switches-off automatically if
•
the oil pressure is too low
•
the film of lubrication oil is unstable as a result of
-
excessively high oil temperature
-
incorrect baisc viscosity
-
dilution of the oil by fuel or water
•
the lubricating oil filter is blocked
•
a leakage in the oil relief valve
•
leakages in pipes and seals
•
the oil pumps and bearings are worn.
If the oil level is too low or the machine is tilted too
much, it can lead to an admixture of air and thus to
a loss of viscosity.
Attention
If the motor cuts-out because the supply of lubricating oil is
insufficient, proceed as follows :
•
Locate the fault and have it rectified.
•
Press the lever few seconds.
•
Start the motor.
3.5.5 Air filter maintenance indicator
The motors are equipped with a maintenance indicator for air
filters. In case of pollution of the filter element the rubber bellow
contracts by underpressure.
•
In this case, switch-off the motor and clean or replace the
air-filter.
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3. Operation