MARTINS Industries MFJ-20T, Manual

04 

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 ENGLISH

MAINTENANCE

The owner and/or operator must be aware that the use and maintenance of this product may require 
special skills and knowledge. 

Use only high-grade hydraulic jack oil and avoid mixing different types of fluid. 

Improper fluid can cause failure, 

immediate loss of load, damages and/or injuries.

MONTHLY MAINTENANCE

Monthly cylinder lubrification and pumping mechanism maintenance is recommended, only use light oil. 
Be aware that any dirt, rust, etc. can damage the internal components. 

YEARLY MAINTENANCE

For best performance and longest product life, hydraulic jack oil needs to be changed, at least once a year.

ADDING OIL

1. With saddle fully lowered.
2. Remove the oil filler plug.
3. Fill, until oil reached the lower rim of the oil plug. 
4. Reinstall oil filler plug.
5. Follow BLEEDING AIR procedure.

REPLACING/CHANGING OIL

1. Fully lower the saddle.
2. Remove the oil filler plug.
3. Lay the floor jack on its side.
4. Drain the fluid into a suitable container.
5. Fill with new oil, until it reached the lower rim of the oil plug.
6. Reinstall oil filler plug.
7. Follow BLEEDING AIR procedure. 

NOTE: Disposal of hydraulic oil fluid should been always done in accordance with your local regulations.

BLEEDING AIR

1. Connect air supply inlet. 
2. Lift the saddle to maximum height using lifting/lowering switch.
3. Lower the saddle to minimum height. 
4. Slowly open oil fill plug to purge air trapped in the system.
5. Put the oil filler plug back in place.

Note: Before putting into use, always test several times for proper operation. 
Repeat if necessary.

OIL 

FILLER 

PLUG