7
Operation
DANGER
Danger to life due to faulty or outdated locking unit
Using a faulty hydraulic locking unit, or one that has been operated beyond its specied service life, can
lead to malfunctions in operation, and accidents entailing danger to life.
►
Assembly only by trained specialist personnel.
►
Do not use the hydraulic locking unit if ice has formed on the piston rod, as this will damage the
wiper.
Replace the hydraulic locking unit if:
►
the restraint system no longer opens fully.
►
the restraint system can no longer be closed.
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the restraint system’s play exceeds the permissible maximum when closed.
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the 7-year service life has ended.
CAUTION
Burn hazard from hot surfaces and hydraulic uid
A burn hazard results from directly or indirectly coming into contact with hot hydraulic uid and hot
components of the hydraulic system.
►
Wear work gloves.
►
Arrange the access to the hydraulic system in such a way that hot surfaces are not accessible to the
user.
►
Wait until the hydraulic system has cooled down before servicing or disassembling it.
7.1 Switching on and off
The hydraulic locking unit is supplied with power, opened and locked via the ride's control system. When
opening the HLU or actuating the valve coil, no external force must act in the locking direction. The coil
will otherwise not be able to switch against the hydraulic pressure.
DAMAGE
Negligent startup procedures will result in malfunctions and accidents during operation of the hydraulic
locking unit.
►
Startup to be carried out only by trained specialist personnel.
►
Secure the ride against being unintentionally switched on.
►
Clean the emergency override before every startup.
►
Carry out startup procedures properly.
►
Before every startup, but not before every ride, check all mechanical connections (page
). If
the hydraulic locking unit was removed prior to restarting, run through the additional steps set out
on page
.
Daily before
starting rides
1. Check the mechanical connections according to the maintenance schedule.
2. Check the locking, opening, and holding function, as well as the drift, according to the function test
on page
and the maintenance plan.
HAWE Hydraulik SE
B 6052-21 -
11
-2021 - 1.7
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