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1.
Depressurise the system and disconnect the hydraulic and electric elements before carrying out any maintenance operations.
2.
Always use original LARZEP, S.A. spare parts.
3.
Whenever you use the machine, visually check the oil level and inspect for damage to the hydraulic element (piston scratched, threads, leaks, etc.) and
make sure all the accessories are in perfect working order (hose, quick plug, etc.)
4.
Clean the machine after every use and lubricate the critical zones: threads, shafts, inside of the rollers, piston, etc. before storing in its wooden box.
5.
In event of heavy duty use, change the hoses and plug regularly, even if they appear undamaged to the naked eye.
6.
Regularly replace the hydraulic oil in the tank with clean oil (at least once a year). Always use LARZEP, S.A. oil.
7.
Maintenance or repair operations that require the disassembly of the machine's mechanical parts (jack, cylinder or pump) should only be carried out by
specialist personnel.
MODEL
VA1225
TANK FILLING
The pump oil tank should be filled
using the plug. Check the level
using the rod provided, placing the
pump vertically with the head
facing downwards. Always use
LARZEP, S.A. oil Ref: AZ8901
See ANNEX
SPARE PARTS
MODEL VA1225
PROBLEMS
1- The piston does not move forward.
2- No pressure in the cylinder
3- The piston does not move back
"VA1225" "VC1225" "VA1227" "VB1227"
4. MAINTENANCE.
VC1225
The pump oil tank should be
filled using the plug. Check
the amount of oil in the tank
using the level provided.
Always use LARZEP, S.A.
oil. Ref: AZ8902
See ANNEX
5. PROBLEMS, MALFUNCTIONS AND SOLUTIONS.
DIAGNOSIS
- No or excess oil in the tank.
- Filter obstructed.
-Oil leak through the pump admission ball.
- Pump restrictor valve not properly adjusted.
- Pressure flange in the cylinder damaged.
- Bad hose connection.
- Pump cup damaged.
- Cylinder pressure flange damaged.
- Leak through pump drive screwball.
-Leak through pump retention ball.
- Drive screwball stuck.
- Piston jammed or twisted in the cylinder.
- Spring damaged.
- Excess oil.
Instruction Manual
Hydraulic Bender
VA1227
The oil tank should be filled
using the rubber plug. The level
is indicated by this orifice,
placing the jack vertically with
the base facing upwards. Always
use LARZEP, S.A. oil. Ref:
AZ8901
See ANNEX
SOLUTION
1. Check level and refill.
2. Disassemble and clean the pump.
3. Repair ball seat and replace the ball.
4. Re-gauge valve.
5. Replace seal.
6. Check the connection.
7. Replace flange.
See Solution 5.
See Solution 3.
8. Repair ball seat and replace ball.
9. Loosen screw and move ball.
10. Repair or replace piston.
11. Replace spring.
12. Check level
VB1227
The oil tank should be filled
using the rubber plug. The
level is indicated by this
orifice, placing the jack
vertically with the base facing
upwards. Always use
LARZEP, S.A. oil. Ref:
AZ8901
See ANNEX
4
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