HYDROSTATIC POWER TRAIN
673831-Rev A 5-59
5
29
Figure 5-64
44. Lubricate 21 external brake discs (26) and 20 internal
brake discs (27) with hydraulic fluid.
45. Install one external brake disc (26), then one internal
brake disc (27). Continue alternately installing
external and internal brake discs. The last brake disc
installed must be an external disc (26).
46. Install the proper shims (28) of correct thickness and
assembly order as noted during removal.
47. Lubricate the piston seal contact surface in the brake
housing with Mobilux EP2 grease or equivalent NLGI
Grade EP2 grease.
48. Install new O-ring (31) on brake piston (32). Make
sure O-ring is not twisted after installation.
Figure 5-65
When installing brake piston (32), begin installation by
tipping one end of brake piston into brake housing (38).
49. Install brake piston in brake housing.
50. Lubricate spring washer (36) with Mobilux EP2
grease, or equivalent NLGI Grade EP2 grease, and
install spring washer on brake piston (32).
51. Compress spring washer (36) by one of the two
methods described in “Front Wheel Motor
Disassembly” on page 5-51.
52. Install snap ring (35) in line with the mark made prior
to removal.
53. Lubricate seal in brake cover (33) with Mobilux EP2
grease or equivalent NLGI Grade EP2 grease.
When installing the brake cover, make sure that the outer
edge of the brake cover is engaged in the groove.
54. Place new brake cover (33) on brake housing
chamfer and click into place using a soft-faced
hammer.
55. Install new plug (34) in brake cover (33).
56. Install front wheel motor. (See “Front Wheel Motor”
on page 5-47.)
57. Pressure filter traction system upon start-up if metal
debris is found in system oil or motor. (See “Portable
In-Line Filter” on page 5-5.)
26 External Brake Disc 27 Internal Brake Disc
26
27
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