Figure 4-10.2. Hydraulic Motor Assembly.

TM55-1730-228-13&P

4-12. HYDRAULIC MOTOR, BRAKE AND DRIVE HUB ASSEMBLY- REPAIR (Continued)

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the notches in the balance ring align with the pins in the valve housing.

(d) Install valve (18) in the housing so that the splined face can be seen.

(e) Install preformed packings (15 and 16) in the valve plate (13). Place valve in position on valve housing

so that the flared ports can be seen.

(f) Install drive (14) through the valve plate and align the splines with the valve (18) splines.

NOTE

Use scribe marks for alignment.

(g) Place geroler assembly (12) into position being careful not to disturb the rotor or rollers. Align the splines

with drive shaft (14).

(h) Install seal (9) and preformed packing (11) in wear plate (7) and position plate on geroler assembly.

(i) Install drive shaft (8) through wear plate with the short splined end down and align splines wth geroler

assembly.

(j) Install dust seal (5) in bearing housing (2).

(k) Place preformed packing (4) in position on bearing assembly (2).

(l) Install shaft seal (6) on bearing assembly (3) and install bearing assembly in housing.

(m) Install bearing housing (2) with bearing assembly (3) on wear plate (7) aligning internal splines of bearing

assembly with splines of drive shaft (8).

(n) Install four capscrews (1) and tighten evenly by alternating between them.

(o) Turn shaft by hand and check for evidence of mechanical bind.

(p) Place new gasket (6, Figure 4-10.2) in position on face of motor assembly.

Figure 4-10.2. Hydraulic Motor Assembly.

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