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Idiomas disponibles
Monthly maintenance is recommended. Lubrication is critical to the UNIJACK as it supports heavy loads. Any restriction due to dirt, rust, etc., can cause either
slow movement or cause extremely rapid jerks, damaging the internal components. The following steps are designed to keep the UNIJACK well lubricated:
1.
Lubricate the ram, ratchet column and pump mechanism with light oil.
2.
Visually inspect for cracked welds, bent, loose, missing parts or hydraulic oil leaks.
3.
If the UNIJACK is subjected to abnormal load or shock, remove from service.
4.
Clean all surfaces and maintain all labels and warnings.
5.
Check and maintain the ram oil level.
Always store your UNIJACK in the fully lowered position. This will help protect critical areas from excessive corrosion.
WARNING!
Do not use brake or transmission fluids or regular motor oil as they can damage the seals. Always purchase and use products labeled
Hydraulic Jack Oil.
1.
Turn release valve counterclockwise to allow ram to fully retract. It may be necessary to apply force to the saddle for lowering.
2.
With the UNIJACK in the level position, remove the oil fill plug. Stand UNIJACK in vertical position with handle socket down. The oil should be level
with the bottom of fill hole. If not, top off. Do not overfill. Always fill with new, clean hydraulic jack oil.
3.
Replace fill plug.
4.
Check UNIJACK operation.
5.
Purge air from system as required.
1.
Turn release valve counterclockwise one full turn to open.
2.
Pump handle eight full strokes.
3.
Turn release valve clockwise to close valve.
4.
Pump handle until the lift arm reaches maximum height and continue to pump several times to remove trapped air in the ram.
5.
Turn release valve counterclockwise one full turn and lower lift arm to the lowest position. Use force if necessary.
6.
Turn release valve clockwise to closed position and check for proper pump action. It may be necessary to perform the above more than once to assure
air is evacuated totally.
PROBLEM
UNIJACK will not lift to full height:
UNIJACK will not hold load:
Lift arm will not lower:
UNIJACK feels spongy when lifting:
Any hydraulic jack found to be damaged in any way, that is found to be worn or operates abnormally, that is believed to have been subjected to an abnormal
load, SHALL BE REMOVED FROM SERVICE.
Because of the potential hazards associated with the misuse of equipment of this type, no alterations shall be made to the product without written authorization of
the manufacturer or supplier.
MAINTENANCE
CHECKING OIL LEVEL
SYSTEM AIR PURGE
TROUBLE SHOOTING
POSSIBLE CAUSE
Low oil level
Release valve not closing
Hydraulic jack oil contaminated
Pump valves not sealing
Cylinder ram binding
Parts worn
Internal damage
See Air Purge section
SERVICE
ALTERATIONS
ACTION
Check oil level
Call customer service
Call customer service
See Air Purge procedure
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