and relief fittings (22).
for the horizontal swing shafts. The procedures apply to
g. Figure 5-10 Illustrates disassembly of the
both clutches. Two hydraulic cylinders and clutch shoes
are provided, but only one is illustrated for simplicity.
reversing shaft clutch. The identical clutch is also used
1 Retaining ring (8)
15 Spring (2)
2 Pin (4)
16 Bleeder fitting (2)
3 Link (4)
17 Cylinder (2)
4 Return spring (2)
18 Pin (2)
5 Adjusting bolt (2)
19 Cotter pin (2)
6 Adjusting bolt (2)
20 Link (2)
7 Nut (4)
21 Pin (2)
8 Cap screw (2)
22 Bushing (2)
9 Lock washer (2)
23 Lining (4)
10 Hydraulic cylinder (2)
24 Rivet (24)
11 Boot (2)
25 Clutch shoe (2)
12 Piston (2)
26 Pin (2)
13 Cup (2)
27 Bushing (4)
14 Spring guide (2)
Figure 5-10. Reversing shaft and horizontal swing shaft clutch assemblies exploded view.
5-39. Cleaning, Inspection and Repair
(2) If the hydraulic cylinder (10) leaks, boot (11)
a. Clean all metal parts in cleaning solvent, Federal
and cup (13) can be replaced. If this does not resolve the
Specification P-D-680, or equivalent. Replace all seals,
leak, the entire cylinder should be replaced as a unit.
gaskets, deformed shims, and packings.
(3) All clutch parts must be inspected for signs
b. Inspect all parts for wear, scoring, cracks, or any
of wear or damage. Items with damaged threads should
be replaced. Compare spring (4) with a new spring of the
any parts not in good condition. Inspect and smooth all
same type. If the spring is elongated or deformed,
seal seating surfaces with a fine oil stone or crocus cloth.
replace the spring.
c. Repair clutch as follows:
(1) Clutch linings must be repaired when the
linings (item 23, fig. 5-10) are worn to within one six-
a. Refer to figure 5-9 and install bearing seal (18)
teenth of an inch of the rivet heads at any point. If wear
is concentrated on one end of the brake shoe, the shoes
on hub (3). Warm inner race of bearing (17) and install it
may be reversed. If this has already been done before,
on hub (3). Install the outer race of the bearing in hous-
the rivets must be drilled out and the lining must be
ing (15) Pack bearing (17) inner race with GAA grease.