Twiflex M1662, Руководство по установке и обслуживанию

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Page 9
4. Maintenance
Maintenance is important for the ability of
the hydraulic power unit to control the
brakes at any time.
Maintenance consists of inspection and
service.
All pressure control valves, flow control
valves, pump regulators and signalling
devices such as pressure switches are
adjusted during the initial manufacture
and subsequent commissioning.
The settings must be monitored
continuously during the initial stages of
operation and then subsequently at
reasonable intervals.
4.1 Inspection
Initial commissioning inspection is done to
check if adjustment of the pump unit is
necessary.
Later inspection is done on a regular
basis.
CAUTION

IMPORTANT (safety information)
Be aware that the system is equipped
with a hydraulic accumulator, and before
any maintenance work it should be
ensured that the system is completely
without hydraulic pressure by opening the
valve (23).
4.2 Adjustment
A number of components demand the
correct setting or charging in order to
make the braking system work properly.
The correct setting and adjustment
procedures can be found in Appendix C.
All components in the pump unit are pre-
set to the stated pressure from the
factory, but may need adjustment during
initial commissioning.
4.3 Checks
By remaining alert and paying close
attention to detail it is possible to detect
faults in their early stages and so prevent
them from developing into more serious
malfunctions. This is particular important
during the early stages, but also remains
important throughout the service life of the
pump unit.
A constant attention should be kept for:

External leaks

Dirt

Damage, especially to hoses and
pipes

Unusual noises from pump,
electric motor, valves etc.

Proper functioning of instruments
and gauges
A maintenance log should be established
to ensure the equipment is kept in
operating condition.
Caution
System contains
Accumulator
Depressurize system
Before maintenance
FIGURE 4.1
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