TM 5-3820-233-35/1
Figure 32-2 (1)- Continued.
against the sleeve. Tighten removal nut with
(2) Inspect jaws for wear or damage. Re-
wrench (Special Tool 45500-751-09). As
pair or replace a defective jaw.
force is applied to the boss of the removal
(3) Perform a magnetic inspection of the
nut, the nut will drive the sleeve in and the
eccentric shaft. Inspect shaft for wear, cracks,
weight of the wrench handle will drop, thus
or bent condition. Replace a defective shaft.
tightening the removal nut. Keep tightening
(4) Inspect housings to see that mating
removal nut until the sleeve is forced into the
surfaces, bearing bores, etc., are free from
bearing and becomes loose (fig. 32-11).
nicks or burrs. Inspect for cracks or breaks.
(f) Remove side bearing assembly
Repair or replace defective parts.
from shaft as shown on figure 32-12.
(5) Inspect pitman housing for elonga-
(g) Remove bearing spacer seal shown
tion and oversize. If housing is 0.003-0.0035
inch elongated or oversize, weld housing bore
(h) Disassemble side bearing assem-
and remachine the housing. Replace housing
blies (107 through 116, and 131 through 140)
if welding or machining facilities are not
as illustrated on figure 32-2.
available.
(10) Pitman bearing and shaft disassem-
(6) Inspect all bearings and seals for
bly
wear, clipping, scoring, or nicks. Replace a
(a) Remove side bearing assemblies
defective bearing or seal.
(step f above) if not already removed.
(7) Inspect all parts for wear or damage.
(b) Refer to figure 32-2 and remove
Replace or repair defective parts.
capscrews (143 and 149) and lockwashers
h. Shaft, Pitman and Side Bearing Reassem-
(144 and 150). Remove pitman end caps (145
bly
and 151), grease seals (118 and 142), and
(1) Pitman bearing and shaft reassembly
flingers (146 and 152).
(c) Install bearing locknut onto shaft
(a) Heat bearing collars in oil to 275
threads to prevent thread damage. Devise a
F. Slide bearing collars onto eccentric shaft
press similar to the one shown on figure 32-
with the internal chambers of collar towards
shaft shoulders. Hold collars in position as
bearings and collars as an assembly.
shown in figure 32-15 until they cool enough
(d) After the shaft bearing and collar
to seat on shaft.
assembly has been removed from the pitman,
(b) Heat pitman bearings in oil to
use a press with 5 to 25 ton capacity and re-
275 F. Slide each pitman bearing into place
move bearings (147 and 153, fig. 32-2) and
against bearing collars and hold them in po-
collars (148 and 154) from eccentric shaft
sition until they cool enough to seat on shaft
(155).
(fig. 32-16).
g. Cleaning, Inspection, and Repair
(1) Clean all parts with an approved
approved cleaning solvent as shown on figure
cleaning solvent and dry thoroughly.
32-17.
4-15
