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3. MAINTENANCE
3.1. Lubricate the axes and moving parts at regular intervals.
3.2. The elements of the press should be kept clean and protected from aggressive conditions at all times.
3.3. Always use original spare parts.
3.4. Check the oil level of the pump with the piston of the cylinder fully retracted and refill as required in
accordance with the volume indicated in the table. To perform this operation, you must first release the side
cover of the press that allows us to reach the tank. The plug is threaded on its upper part.
IMPORTANT: An excess of oil may affect the operation of the hydraulic unit.
3.5. Only use hydraulic oil, HL or HM type, with a maximum ISO grade of cinematic viscosity of 30cSt at 40ºC or
of an Engler viscosity of 3 at 50ºC.
EXTREMELY IMPORTANT: Never use brake fluid.
3.6. A frequent inspection should examine:
•
Wear on the piston, cylinder, pump, accessories or incorrect connections.
•
Oil leaks, signs of corrosion.
•
Damage to the structure, accessories, table and supports, lost screws or plug-ins.
4. REPAIR
4.1. Both the maintenance and repair of these presses should be carried out by qualified personnel, who as a
result of their training and experience are familiar with the hydraulic systems used.
4.2. Both the repair kit, which exclusively contains the o-rings and seals of the jack, and the spare parts sets must
be ordered using the reference assigned in the table.
PROBLEM
1. The piston does not extend
2. Piston does not extend totally
3. Piston extends very slowly
4. Cylinder looses pressure while
holding the load
5. Oil leakage
6. Piston does not fully retract
10050001001.12.
.20
May
CAUSE
Release valve is open
Air in hydraulic circuit
Low oil level
Dirt in hydraulic circuit
Deformed piston
Low oil level
Deformed piston
Air in the hydraulic circuit
Dirt in hydraulic circuit
Air in the hydraulic circuit
Dirt in hydraulic circuit
Damaged joints or rings
Damaged joints or rings
Excess of oil
Deformed piston
Dirt in hydraulic circuit
Damaged return spring
Release valve closed
SOLUTION
Close release valve
Purge the circuit
Refill with required volume
Clean hydraulic circuit
Contact your distributor
Refill
Contact your distributor
Purge hydraulic circuit
Clean hydraulic circuit
Purge the hydraulic circuit
Clean hydraulic circuit
Replace joints or rings
Replace joints or rings
Remove excess of oil
Contact your distributor
Clean hydraulic circuit
Replace
Open the release valve
EN
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