USER-MANUAL
4-Column
AL3044
AL4044
AL4044/VS
AL4044/VANS
AL5044
AL5044/T
ISSUED 22-7-2008
AUTEC Hefbruggen bv
APPENDIX OI01A
INSTRUCTION OF MAINTENANCE
HYDRAULIC 4-POST LIFT
To be executed activities/ preventive maintenance of a hydraulic 4-post lift. (Required time: 75 min.)
Once a year or as much times as needed regarding the intensity of use or because of climatologically circumstances, the following activities
of maintenance have to be carried out:
1.
hoisting cables
2.
cable pulley
3.
air cylinders and pipes
4.
electric wiring
5.
hydraulic cylinder and pipes
6.
floor securing
7.
securities
1
The hoisting cables have to be checked on damage or broken windings, then sweep clean the cables with a not fluffing cloth and
lubricate again with special oil.
At the same time, it has to be checked if the lift is still hanging level in its cables, if not is has to be adjusted.
2
The cable pulleys, both in the cross beam and under the platform, have to be disassembled, cleaned, checked and greased.
The following procedure has to be carried out:
Hang the lift in the interlocking on such a height that working on the cable pulleys in the crossbeam is possible.
Then open the emergency pocket valve and pull at the cables to switch off the voltage, check if the lift is hanging solidly in its interlocking.
Now it is possible to remove the pins of the cable pulleys in the cross beam, check these pins on excessive wastage.
Check as well the bearings in the cable pulleys on excessive wastage and clean both the pin and the bearings and grease them again and
put them back together.
After assembling back the cable pulleys check if the cables are lying right on the roller and if the lever of the chain fracture security is guided
behind the cables in the right way.
To pull the cables taut again, you have to open the control unit and push hand-operated the up-relay.
To check the cable pulleys under the platform you have to repeat this procedure with the difference that the pulleys under the platform in
contrary to the pulleys in the cross beam can fall out of the platform.
To prevent this you can put a pen or a thick screwdriver in the pinhole of the pulleys after pulling out the pin.
After assembling the pulleys it is very important to check if all the cables are lying on the right pulley again.
3
Check all the air pipes on leakage and if there has not been installed an oil sprayer you have to detach the air pipes from the
cylinders and then push the down button; any possible present water in the pipe can go away.
Then spout a little bit of thin oil in the pipe and install the pipes again, then check if the interlockings are well functioning.
4
Check all electric wiring on damages, if there are damages replace the concerned wiring.
During activities to the electric wiring always put the main switch on zero and block in this position.
5
Check hydraulic pipes, hoses and packings.
6
Check securing bolts with which the lift is attached on the floor and check the posts on standing level.
7
Check the obstruction guards by means of a chock of wood which has to be placed turn and turnabout under one of the hooks of
the cross beam, after which you let down the lift on the chock of wood, the lift has to stop descending.
REQUIRED LUBRICANTS
Pins of the cable pulley
Multi-purpose grease
Industrieterrein IJsselveld, Vlasakker 11, 3417 XT MONTFOORT, The Netherlands
Tel: +31 348 477000 Fax: +31 348 475104 E-mail:[email protected]
