TM-9-2520-246-34
TRANSMISSION MODEL 3052, NSN 2520-00-347-4520
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL
MAY 1978
TM-9-2520-246-34 - Page 72 of 153
4-8. Assembly of Transfer (Sequence).
a.
Transfer case shifter shaft plug and valve
assembly. (See figs 4-11 and 4-12.)
b.
Shifter fork, input shaft assembly, and
countershaft assembly. (See fig. 4-13.)
c.
Input shaft rear bearing cover. (See fig. 4-12.)
d.
Rear output shaft rear bearing retainer. (See fig.
4-12.)
e.
f .
g.
h.
Countershaft rear bearing cover. (See fig. 4-12.)
p.
Top cover and shifter shaft.
Rear output shaft. (See fig.
Case cover. (See fig. 4-9.)
(See fig. 4-11.)
4-10.)
q.
Section III. TEST
4-9. General.
This section provides for
adjustments of transfer model T-136-27.
TM 9-2520-246-34
i.
Front output clutch. (See fig. 4-9.)
j.
Front output shaft. (See fig. 4-8.)
k.
Input shaft front bearing cover. (See fig. 4-7.)
1.
Front output shaft case. (See fig. 4-7.)
m.
n.
o.
4-4.)
3.)
Air cylinder assembly. (See fig. 4-6.)
Companion flanges. (See fig. 4-5.)
Draining transfer. (See fig. 4-4.)
Positioning transfer on overhaul stand. (See fig.
Handbrake drum and shoe assembly. (See fig. 4-
AND ADJUSTMENT (MODEL T-136-27)
the tests and
4-10. Lubrication.
Tighten drain plug (fig. 4-2). Lay
transfer on side with filler plug up. Remove filler plug
and pour ½ pint of universal gear lubricant (GO),
MIL-L-2105, through the plug opening. Install and
tighten filler plug. Lubrication of the complete unit
should be accomplished after installation. Attach a tag
to filler plug giving instructions for filling before
transfer is placed in service. Refer to paragraph 4-3
for transfer data and lubrication order (LO 9-2320-
209-12/1) for lubrication specifications.
4-11. Shift Test.
a. Neutral.
Place shifter shaft in neutral position
(between low, shifter shaft out, and high, shifter shaft
in). Turn input shaft by hand. Front and rear output
shafts should not turn.
b. High.
Push shifter shaft in to shift to high
position. Turn input shaft in clockwise direction. Rear
output shaft should revolve in same direction. Front
output shaft should not turn.
c. Low.
Pull shifter shaft out to shift to low
position. Turn input shaft by hand and note if rear
output shaft turns approximately one-half as fast as
when in high position (step b). Front output shaft
should not turn.
d.
Front Output
pressure, check for
steps b and c, both
Shaft Air Lockup. Apply air
sound of lock engaging. Repeat
output shafts should turn. Remove
air pressure and repeat step b. Front output shaft
should be disengaged.
4-12. Handbrake Test.
Pull handbrake lever (fig. 4-
2) to engage brakeshoes with handbrake drum.
Release lever and note if shoe return spring pulls
shoes free of drum. For in-vehicle handbrake lever
adjustment, refer to TM 9-2320-209-20/1.
4-13. Handbrake Shoe Adjustment.
a.
If shoes do not clear brakedrum (para 4-12)
check adjustment of shoe anchor pin. (See fig. 4-3.) If
outer shoe is free on anchor pin, tighten bolt in shoe
stop bracket to increase shoe-to-drum clearance. For
in-vehicle adjustment, refer to TM 9-2320-209-20/1.
b.
To ensure brakeshoe assembly is correctly
positioned on brakedrum, use spacer washers between
brakeshoe assembly and rear bearing cover to obtain
1/16-inch of brakedrum extending beyond brakeshoe
assembly.
4-11
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