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4

Instruction Manual 

Bench Handpump press 20 ton “ECM02013”

 

5. MAINTENANCE. 

 

The hydraulic circuit of the press is closed, so in normal conditions no oil leakage should be coming up. In case of oil leakage, after the proper repairing work, you 
should fill up the tank with hydraulic oil by LARZEP (

Ref. AZ8901

); the pump is equipped with an oil level indicator to control the need quantity of oil. 

As far as a non-continuous use of the press is concerned (1 hour per day), oil replacement should be done once a year.  

 
To empty the tank, you should remove the cover and take the oil out to another container. Please, bear in mind the existing rules for waste processing 
when handling the used oil. Keep greasy and lubricated the pin bearings, the piston and in general all the parts that might be in friction.

 

 

FREQUENT INSPECTION: a visual inspection carried out before and after each operation. 
PERIODIC INSPECTION: a thorough examination of the equipment, both externally and internally. The equipment is labelled with the inspection date and the data 
is logged in a register. 
In a FREQUENT INSPECTION, check for: 

 

Piston wear, signs of corrosion 

 

Wear or damage in the cylinder, frame, accessories, work table, supports or pump. 

 

Oil leaks 

 

Loose or damage screws or joints 

In a PERIODIC INSPECTION, check for the same problems as in a frequent inspection but in addition, the hydraulic equipment should be disassembled and cleaned 
by an authorized service dealer so that it may be examined internally. 
Periodically clean and lubricate the press’s moving parts, such as the piston, winch, pumping mechanism, etc. This is especially important when working in salty or 
humid environments.  
Hydraulics equipment, which is subject to the very severe environmental conditions mentioned, previously should be cleaned and lubricated after each use. 
To clean the hydraulic equipment, begin by removing the pump’s oil reservoir plug and draining al the oil. Fill reservoir with degreasing liquid and thoroughly 
circulate it thorough the hydraulic equipment. After completely purging the liquid out of the hydraulic circuit, align the pump vertically with the head down and fill 
the reservoir with the new hydraulic oil until the oil level rises to the orifice 

USE ONLY LARZEP HYDRAULIC OIL 

Other grades of oils or types of hydraulic fluid (such as brake fluid) may affect the performance of the equipment or cause the deterioration of the seals. 

 
DO NO ATTEMPT TO FILL THE PUMP WITH OIL WHILE IT IS CONNECTED TO A CYLINDER WHICH IS SUSTAINING A LOAD BECAUSE 
IT MAY OVERPRESSURIZE THE RESERVOIR WHEN THE PISTON RETRACS AND CAUSE DAMAGE OR INJURY 

Always use the original LARZEP parts to prolong the service life of your hydraulic equipment. 

LARZEP S.A

. or your authorized dealer can supply you with 

original parts for simple maintenance work. 

PROBLEMS CAUSES 

SOLUTIONS 

1. The piston does not advance. 

- The pump’s relief valve is open. 

1. Close the relief valve. 

- Air in the hydraulic circuit. 

2. Open the pump’s relief valve, and purge the hydraulic circuit. 

 

- No oil in the reservoir. 

3. Fill the oil reservoir until the oil level reaches the plug’s orifice. 

 

- Dirt in the hydraulic circuit. 

4. Clean the hydraulic circuit. 

 

- Worn or damaged check valve. 

5. Take the press to an authorized service dealer. 

 

- Improperly connected hydraulic line 

6. Ensure that the hydraulic line is properly connected. 

 

- Deformed piston. 

See Solution 5. 

3. The piston will not fully extend. 

- Low oil level. 

See Solution 3. 

 

- Deformed piston. 

See Solution 5. 

4. The piston advances very slowly. 

- Air in the hydraulic circuit. 

See Solution 2. 

 

- Dirt in the hydraulic circuit. 

See Solution 4. 

 

- Worn or damaged check valve. 

See Solution 5. 

 

- Improperly connected hydraulic line 

See Solution 6. 

5. The cylinder slowly loses pressure  

- Air in the hydraulic circuit. 

See Solution 2. 

 

- Dirt in the hydraulic circuit. 

See Solution 4. 

 

- Worn or damaged check valve. 

See Solution 5. 

 

-Worn or damaged O-rings  

See Solution 5. 

6. Oil leak. 

- Worn or damaged O-rings 

See Solution 5. 

 

- Improperly connected hydraulic line 

See Solution 5. 

7. Piston does not fully retract. 

- Excessive oil in the reservoir. 

7. Ensure that the oil level reaches the plug’s orifice. 

 

- Deformed piston 

See Solution 5. 

 

- Worn or damaged check valve. 

See Solution 5. 

 

- Dirt in the hydraulic circuit. 

See Solution 4. 

 

- Damaged return spring. 

See Solution 5. 

 

- Relief valve closed. 

8. Open the relief valve 

 

- Damaged return spring. 

See Solution 5. 

 

6. WARRANTY. 

 

LARZEP, S.A.

 guarantees its products against all design and manufacturing defects for the durations of two years from the date of purchase. This guarantee does not 

include the ordinary wear of both metal and non-metal parts, abuse, using the equipment beyond its rated capacity and any wear or damage incurred as a result of 
using a hydraulic fluid which is not recommended by 

LARZEP, S.A. 

Please note that if the equipment is disassembled or serviced by anyone other than an authorized service dealer or by 

LARZEP, S.A

., this guarantee is rendered null 

and void. 
In the event of a warranty claim, return the equipment, to 

LARZEP, S.A

. or the authorized dealer which sold you the hydraulic equipment, 

LARZEP, S.A

. will 

repair or replace the faulty equipment, whichever is deemed most appropriate. 

LARZEP, S.A.

 shall not be held liable for any consequential damages or losses, 

which may occur as a result of faulty equipment 

Содержание KC02013

Страница 1: ... Way Leighton Buzzard 48269 MALLABIA SPAIN HALLAM VIC 3803 AUSTRALIA BEDS LU7 4RW UNITED KINGDOM Tel 34 943 171200 Tel 61 3 9796 3744 Tel 44 1525 377819 Fax 34 943 174166 Fax 61 3 9796 5964 Fax 44 1525 851990 e mail sales larzep com e mail sales larzep com au e mail sales larzep co uk www larzep com www larzep com au www larzep co uk ...

Страница 2: ...d down and pumping several times Do not operate hydraulic equipment near open flame explosives and sources of intense heat or any other hazard which could cause a fire or the damage equipment The hydraulic equipment should not be exposed to temperatures grater than 60ºC when in use or when stored If purchasing just a cylinder or pump for use in a press ensure that you are using the proper combinat...

Страница 3: ... disassemble the hose and the cylinder from the frame ISOLATION OF THE POWER SUPPLY Release the rapid coupling from the pump The machine is designed to assure that the operator performs all maintenance tasks in an easy and safe way All the components that would require any maintenance operation are easy accessible The press the cylinder and the pump have their corresponding serial numbers marked o...

Страница 4: ...ZE THE RESERVOIR WHEN THE PISTON RETRACS AND CAUSE DAMAGE OR INJURY Always use the original LARZEP parts to prolong the service life of your hydraulic equipment LARZEP S A or your authorized dealer can supply you with original parts for simple maintenance work PROBLEMS CAUSES SOLUTIONS 1 The piston does not advance The pump s relief valve is open 1 Close the relief valve Air in the hydraulic circu...

Страница 5: ...5 Instruction Manual Bench Handpump press 20 ton ECM02013 7 DECLARATION OF CONFORMITY ...

Страница 6: ...6 Instruction Manual Bench Handpump press 20 ton ECM02013 GENERAL DRAWING Nº 1 ...

Страница 7: ...7 Instruction Manual Bench Handpump press 20 ton ECM02013 GENERAL DRAWING Nº 2 ...

Страница 8: ...8 Instruction Manual Bench Handpump press 20 ton ECM02013 GENERAL DRAWING Nº 3 ...

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