M+S MM Series - Front Cap and Shaft Seal Removal; Cleaning and Measurement; Lubrication; Seal Kits

Service Manual
Disassembly
Hydraulic Motor type MM, MLHM
- 4 -
Fig. 5
10. Remove Front cap from housing. Dust
seal and Shaft seal will come off with cap.
Fig. 6
11. Remove with screwdriver Dust seal and
Shaft seal from Front cap (see Figure 6). Work
from outer side for both seals.
12. Remove shaft from housing.
13. Remove thrust washer and needle bearing
from shaft.
1. CLEANING:
Wash all parts (except seals) in a weak
solvent on carbon base and then degrease.
2. MEASURING AND REPLACEMENT:
Measure all parts and compare actual
dimensions with the nominal ones given in the
technical documentation. Replace any parts
with scratches or burrs that could cause leakage
or damage with new ones. Use new seals when
reassembling motor.
3. LUBRICATION:
Lubricate all seal parts which should be
reassembled with light film of petroleum jelly.
Seal Kits:
SK41 5129 0080 for MM…
SK41 5129 1408 for MM…P
SK41 5129 1809 for MM…D
SK41 5123 0001 for MLHM…
SK41 5123 0003 for MLHM…4(7)
SK41 5123 0649 for MLHM…P
SK41 5123 0653 for MLHM…4(7) P
SK41 5123 1297 for MLHM…D
SK41 5123 1299 for MLHM…4(7) D
Front Cap
Washer
Screw M6x16
Thrust
Washer
Axial
Needle Bearing
O-Ring
Housing
O-Ring
Dust Seal
Front Cap
Shaft Seal