MAHA MPJ Series Original Operating Instructions page 61

Fill with hydraulic oil
Fill in the required amount of hydraulic oil via the oil filler plug (see illustration)
and close the oil filler plug again with a new sealing ring.
Bleeding the hydraulic system
Use personal protective equipment!
Pit jack is unloaded, freely accessible and cleaned!
The pit jack is fully retracted and load-free!
Check the oil level and top up with hydraulic oil if necessary. The target fill level
of the hydraulic oil is between the two notches of the dipstick when retracted. If
there is only one notch on the dipstick, this marks the maximum oil level and the
lower end of the dipstick marks the minimum oil level.
Bleeding via remote control
1 Control the pit jack using the fast stroke (B) (remote control) until the pit
jack has moved approx. 100-200 mm.
2 Immediately afterwards, actuate the load stroke (A) and also perform the
lifting movement with the remote control for approx. 100-200 mm without
pausing.
3 Now actuate the fast approach stroke (B) again and move the pit jack to the
mechanical stop. The pit jack is now fully extended.
4 Actuate the load stroke (A) at the mechanical stop and wait for approx. 10-
20 pump strokes of the pneumatic air motor. (Air, which is located under
the piston rod, is discharged via a hydraulic valve).
5 Lower the jack to the starting position.
6 Repeat the procedure until the piston rod moves smoothly.
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