Scissor lift
Happ10
Version 4.0
©HAPP Australia Pty Ltd
Page 23
Chapter 7 Maintenance
Turn off and lock the main switch before servicing the lift.
The maintenance intervals indicated below apply to average workshop use. The
lift should be inspected more frequently for severe use applications.
Only trained personnel who knows how the lift works must be allowed to service
the lift.
To service properly the lift, the following has to be carried out:
l
Use only genuine spare parts as well as equipment suitable for the work
required;
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Follow the scheduled maintenance and check periods shown in the manual;
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Discover the reason for possible failures such as too much noise, overheating,
oil blow-‐by, etc.
Refer to documents supplied by the dealer to carry out maintenance:
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Functional drawing of the electric and hydraulic equipment
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Exploded views with all data necessary for spare parts ordering
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List of possible faults and relevant solutions.
7.1 Ordinary maintenance
The lift has to be properly cleaned at least once a month using self-‐
cleaning clothes. Lubricate all pivot pins at least once a week. Be sure the
rod of the hydraulic cylinders is always clean and not damaged since this
may result in leakage from seals and, as a consequence, in possible
malfunctions.
Note: Ensure no moisture is in contact with hydraulic cylinders, hydraulic
oil is hydroscopic and absorbs water. Water will pass by hydraulic seals
due to sucking action of the internal ram tube.
7.2 Periodic maintenance
Every 3 months
Hydraulic
circuit
Check oil tank level;; refill with oil, if needed;;
Check the circuit for oil leakage.
Check seals for proper conditions and replace them, if necessary;;
If oil is milky this is a sign of water in the oil which will soon cause the
cylinders to rust and seals to be damaged. Drain, Flush and add new
oil immediately.
