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Page 24
Maintenance
The recommended maintenance schedule is provided below.
Maintenance Schedule
Verification by owner
Verify general operation of the lift.
Verify correct operation of the safety devices:
• Underpan safety switches
• Door contact
• Door lock
• Emergency stop
The lift should never run when these devices are activated or when the door is not
closed.
Verification by technician ONLY
Verify the following:
• General operation of the lift
• Operation of the underpan sensors
• Operation of the emergency stop
• Operation of the door and gate lock contacts. The lift should not run unless the
door or gate is closed and locked.
Verify the safety components:
• Operation and alignment of the up final limit switch (activate by hand)
• Operation of the back-up nut safety switch; make sure it is in the proper location
(to the right of the load swtich).
• Operation of the load switch. Lower the platform to the ground using the hand
crank in order to release the load on the main nut. The lift should not run up until
you restore the load on the main nut by moving the platform up with the hand
crank.
• Operation of the up relays. Verify that neither of the two up relays gets stuck in the
activated position. Use a multimeter to verify that every N.O. contact is open
when the relays are not activated.
Ensure that all hardware is tightened.
Ensure that the main nut and the back-up nut are clean and free of any solid debris to
ensure proper action of the microswitches.
Check the rollers (function and wear).
Check the battery fluid level (optional system). Also check the voltage with the
charger unplugged (13 VDC unloaded and no lower than 10-11 VDC when running
up/down).
Lubricate the acme screw, and upper and lower bearings using high-quality wheel
bearing grease.
Multilift Installation Guide
Frequency
Every 2 months
Every 2 months
Frequency
Every 6 months
Every 6 months
Every 6 months
Every 6 months
Every 6 months
Every 6 months
Every 6 months
Part No. 000643, 26-m02-2013
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