MULTILIFT ULTIMA S, Installation Instructions Manual

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Installation
Ultima Hooklift 01/2020
59
7 Testing the hooklift
7.1 safety precautions when testing the hooklift
Always use personal safety protections when testing the hooklift.
High pressure oil leaks can be life threatening, especially direct sprays of oil. Never touch the
hydraulic components under pressure and therefore stay clear from the hydraulic system.
All hydraulic leaks must be repaired immediately when noticed. Before repair make sure that
there is no pressure in the system and none of the frames can move during the repair.
If two or more persons are involved in testing and checking, they should always agree actions
before starting to use the hooklift.
Make sure that there is sufficient free space around and above the hooklift to perform all oper-
ations and that there is no-one near or liable to approach the hooklift during testing. Make sure
that you have read the operator’s manual and safety instructions before testing.
Controlling the hooklift directly from the valve spools is only permitted if carried out by trained
personnel.
Always vent and fill the pump with oil before starting. Check pump manufacturer’s instructions.
The first test run must be performed with extra care because there is air in the system which
may cause unexpected movements. Observe all movements carefully to prevent any damage,
possible collisions or friction of parts.
Make sure you keep out of range of all rotating or moving parts such as frames, container
locks, under run bar etc.
7.2 Testing the hooklift
The proximity switches (sensors) of the control system are preventing or allowing the move-
ments of the hooklift frames and all of these functions must be tested. One or more sensors
might have moved or damaged during the transport, lifting or installation and therefore all sen-
sors must be checked at first visually before testing the safety functions.
All functions of the hooklift should first be performed several times without container. Bleed the
air from the system by moving all cylinders in and out 4 - 5 times and keeping the cylinders
pressurized about 5 seconds. Note: Main cylinders in and hydraulic body locks can’t be kept
pressurized because of the safety system.
Check the oil level in the oil tank and fill up if necessary. Check also for possible oil leaks.