5-8. Transmission Reassembly
(49), cover (50), gasket (51), and breather (47). Remove
Refer to figure 5-3 and reassemble the transmission as
clutch housing (18) by removing capscrews (23) and
a. Subassemble key (16), pinion gears (42 and 43)
d. Remove retainer (35) by removing capscrews (34).
and spacer (25) on shaft (15). Always lubricate all
Remove gasket (36) and retaining rings (37 and 38).
transmission parts with OE before installing them.
Discard items (36, 37, and 38).
b. Lay shaft (115) in bottom of housing (21). Be sure
Remove nut (10) and washer (9).
spacer (25) is still in place on front of shaft (15). Start
companion flange (8).
bearing (26) into lower front bearing bore, and start shaft
f. Remove retainer (5) by removing capscrews with
(15) into bearing (26).
c. Install needle bearing (14), gasket (13), retainer
(7) from retainer (5) and discard the seal. Replace with
(12), and secure in position with capscrews (11).
new seal. Be sure seal lip points inward. Remove and
Tighten capscrews (11) to 20-40 foot-pounds.
discard gasket (3). Remove retaining ring (2).
d. Install retaining ring (27), and retaining washer
g. Pull out on input shaft (40) while tapping housing
(28), Tighten capscrews (30) to 12-22 foot-pounds, and
(21) with a soft hammer. Remove bearing (39) with
install lockwire (29) in capscrews (30).
e. Install gasket (31) and retainer (32), and secure
h. Support front end of shaft (52) while tapping it
with capscrews (33). Tighten the capscrews to 15-25
rearward with a soft hammer until shaft bearing (1) is
unseated from housing (21) . Remove bearing (1) with
f. Lower shaft (52) into housing (21). Center the rear
of shaft (52) in the rear bearing bore and drive bearing
i. Tilt shaft (52) upward and remove it.
(1) onto shaft (52) until it is squarely seated in the bore.
j. Remove retainer (32) by removing capscrews (33).
g. Install retaining ring (2) on bearing (1). Install
Remove and discard gasket (31).
spacer (4), gasket (3), retainer (5), and secure with
k. Break lockwire (29) and remove retaining washer
capscrews (6). Tighten the capscrews to 20-40 foot-
(28) by removing capscrews (30).
Remove bearing retainer (12) by removing
h. Warm and install bearing (39) on shaft (40). Install
capscrews (11). Remove and discard gasket (13).
retaining rings (37 and 38). Using heavy grease to hold
in place, install needle bearings (44) in shaft(40) bore.
Note. Tapping the front end of shaft (15) with a
Install retaining washer (45) and retaining ring (46). Start
soft hammer will aid the removal of retainer (12).
bearing (39) into the upper front bearing bore. Be sure
that the front of shaft (53) enters the pilot bore of shaft
m. Support the rear end of shaft (15) and tap the rear
(40). Gently tap shaft (40) with a soft hammer until
of the shaft gently with a soft hammer until bearing (26)
retainer ring (38) is seated squarely on housing (21).
can be removed. Discard items (27 and 26). Tip shaft
i. Install gasket (36), retainer (35), and secure with nut
(15) upward and remove it. Remove spacer (25).
(10). Tighten the capscrews to 15-25 foot-pounds.
n. Place shaft (15) in a suitable press with blocks
j. Install companion flange (8), washer (9) and secure
supporting the rear of gear (43) and press out shaft (15).
with nut (10). Tighten the nut to 125 foot-pounds.
Remove key (16).
Note. Hold gear (47) in stationary position with
5-7. Transmission Inspection and Repair
brass pinch bar while tightening nut (10).
a. Clean all parts with a suitable solvent.
b. Discard all bearings, replace all gaskets, seals
Install clutch housing (18) and secure with
snap rings, and lockwire.
c. Since clearances and tolerances in this assembly
capscrews to 70-110 foot-pounds. Install gasket (51),
are maintained by parts of proper fit rather than by
cover (50), and breather (47) and secure with capscrews
adjustments or shimming, it is most important that any
(48) and washers (49).
severely worn parts be discarded.
l. Place clutch plate on the end of shaft (40) and turn
d. Inspect gears for wear or pitting on tooth faces. All
the transmission gearing and shaft over to be sure the
gears with worn or pitted teeth should be replaced.
transmission turns smoothly.
Check all engaging gear teeth. Check all splines for
Install the clutch assembly as instructed in
wear or damage.
e. Inspect all grey iron parts for cracks and fractures.
Replace or repair all damaged parts. Housing may be
welded or brazed if cracks do not extend into bearing
bores or mounting surfaces.