Service Manual
Disassembly
Hydraulic Motor type MH-series 2,
MLHH…B
- 3 -
Instructions in this manual are for MH-series
2 and MLHH…B motors.
Cleanliness is extremely important when
repairing these motors. Work in clean area!
Before disassembly, drain oil from motor.
Remove castellated nut, washer and key
when used. For motors with drain unscrew drain
plug and remove washer (O-ring).
Although not all drawings show the motor in
disassembly devise (vice), we recommend that
you keep motor clamped during disassembly.
1. Place the motor in disassembly devise with
output shaft down.
Fig.1
2. Unscrew screws using S17 socket spanner.
Remove washers (see Figure 1).
3. Remove end cover.
Fig.2
4. Remove the roll-gerotor set carefully to
prevent dropping of rollers and rotor from stator.
Do not dismount!
Remove O-rings from roll-gerotor set
grooves (see Figure 2).
Fig.3
5. Remove cardan shaft (see Figure 3).
6. Remove distributor plate.
7. Remove O-ring from housing.
Reposition motor in disassembly devise with
shaft upwards.
Fig.4
8. Unscrew screws M5 using S5 Allen head
spanner (see Figure 4).
9. Remove flange from housing. Dust seal
and Shaft seal will come out with flange.
Fig.5