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Page Title: Table 14-1. Transmission Spring Inspection
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TM 10-3930-632-34
Slide gear and bushing (10) on the shaft, and discs (14
WARNING
and 15) onto the gear assembly. Place thrust washer (5)
on the shaft.
Dry cleaning solvent, P-D-680, used to clean
c.
Install seal (18) on the hub of the hub and
parts is potentially dangerous to personnel and
drum. Install seal (19) on piston (17). Install the piston
property.  Avoid repeated and prolonged skin
in the hub and drum.
contact.
Do not use near open flame or
excessive heat. Flash point of solvent is 100 F.
d.
Install discs (14 and 15) and springs (16) in the
- 138 F. (39 C. - 59 C.).
hub and drum, making sure that the first disc inserted
has splines which engage the hub and drum and the
second disc has splines which engage the gear
14-9.
Cleaning and Inspection
assembly.  Alternate discs until all eight are installed.
a.
Discard the seals and preformed packings.
Figure 14-8 shows clutch assembly.  Install end plate
b.
Clean the bearings by placing them in a wire
(13, figs.  14-3 and 14-4) in the hub and drum and
basket and immersing them in a container of solvent.
secure the assembly with retaining ring (12).
Agitate the basket in the solvent to thoroughly clean the
bearings.  Dry with clean, dry, compressed air, taking
care not to spin the bearings. Lubricate with light oil after
cleaning.
c.
Clean all other parts of the transmission
assembly in cleaning solvent P-D-680 and dry with
compressed air.
d.
Lubricate all metal parts of the assembly with
transmission fluid.
e.
Inspect all bearings for cracks, nicks, wear,
scoring, overheating, or other damage; replace damaged
bearings.
f.
Inspect the gears for chips, cracks, breaks,
worn teeth, worn splines, or other damage; replace
damaged gears.
g.
Inspect the case, housing, and all covers for
cracks, breaks, distortion, nicked seal seats, or other
damage;  replace  parts  if  damage  makes  them
unserviceable.
h.
Inspect discs for cracks, wear, overheating, or
other damage; replace the complete disc assembly if any
are defective.
I.
Inspect all springs for wear. Check tension of
the springs.
Replace if the springs do not meet
requirements as shown in table 14-1.
Figure 14-8. Assembling Forward and Reverse Clutches
14-10.
Reassembly
a.
Reassemble the control valve by referring to
figures 14-6 and 14-7, and procedural step s (1) thru (9),
paragraph 14-8, and reversing order of disassembly.
b.
Place spacer (9, figs.  14-3 and 14-4) and
bearing (8) on shaft (11); secure with retaining ring (7).
Table 14-1. Transmission Spring Inspection
Name
Fig.
Index
Compressed
Pounds load
No.
No.
Length
Pressure regulator
14-5
18
2 1/2
21-24
spring
Relief valve spring
14-5
10
0.763
5 1/2-7 1/2
Clutch spring
14-4
16
e.
f.
Align the discs that engage the gear assembly
Assemble the second clutch assembly as
and install the clutch assembly on the assembled shaft
directed in a through e above.
g.
Press the bearings (2) into the housing (36, fig.
(11) and gear (10). Install the gear or spacer (4) on the
shaft and secure with the retaining ring (3).
14-2) so that the retaining ring on the bearing
14-11

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