Corghi ERCO 500, Operator'S Manual, Page: 72 / 184

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9 CHAPTER 9 - MAINTENANCE
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:

use only genuine spare parts as well as equipment suitable for the work required;

follow the scheduled maintenance and check periods shown in the manual;

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:

functional drawing of the electric and hydraulic equipment

exploded views with all data necessary for spare parts ordering

list of possible faults and relevant solutions.
Before carrying out any maintenance or repair on the lift, disconnect the power
supply, padlock the general switch and keep the key in a safe place to prevent
unauthorized persons from switching on or operating the lift
9.1 ORDINARY MAINTENANCE
The lift has to be properly cleaned at least once a month. Use self-cleaning clothes.
The use of water or inflammable liquid is strictly forbidden
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.
9.2 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;
Foundation bolts

check bolts for proper tightening
Hydraulic pump

verify that no noise changes take place in the pump
of the control desk when running and check fixing
bolts for proper tightening
Safety system

check safety devices for proper operation
Every 6 months Oil

Check oil for contamination or ageing.
Contaminated oil is the main reason for failure of
valves and shorter life of gears pumps
Every 12 months General check

verify that all components and mechanisms are not
damaged