Service Manual
Reassembly
Hydraulic Motor type MH-series 2,
MLHH…B
- 5 -
1. Lubricate output shaft with hydraulic oil
(see Fig.6).
Fig.7
2. On the bottom of the shaft mark a Timing
dot placed between forward and backward
valving slots as shown on Figure 7.
3. Lubricate lightly all internal housing
surfaces with hydraulic oil. Mount shaft in
housing.
4. Place the motor in reassembly device with
output shaft up.
5. Install needle bearing, then thrust washer
on the shaft.
6. Place O-ring 53,00х2,00 round thrust
washer.
Fig.8
7. Place flange on clean soft surface.
Lubricate shaft seal and dust seal with light film
of clean petroleum jelly (Shell Retinax Grease
HDX2).
8. Place shaft seal in Flange and firmly push
with Seal driver (see Fig.8).
9. Install dust seal in flange. Carefully press
dust seal into place.
Lips of shaft seal and dust seal must face
outward.
Important:
Check
seal
condition
after
installing in housing. If damaged, cut or
improperly installed, replace with new ones.
10. Install the spigot flange incl. assembled
seals on shaft. Prevent the seals against damages.
11. Install 6 screws and alternately torque
them to 10÷12 Nm.
12. Reposition motor in reassembly devise
with shaft down.
13. Lubricate and install O-ring in housing
seal groove (see Fig.3).
14. Install cardan shaft into splines of output
shaft. Mark one cardan shaft tooth and align this
tooth with timing dot on shaft.
Timing Procedure
Standard rotation:
15. Align shaft timing dot with any housing
bolt hole.
Fig.9
