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 54 of 153
TM 9-2520-246-34
Figure 3-45. Removal of First and Reverse
Shifter Shaft Oil Seal.
c. Wainshaft.
CAUTION
Do not press directly on the flange of the
sleeve. Use a short piece of pipe or tubing
and press on end of sleeve. Direct pressure
on the flange of the sleeve may damage it.
(1) Slide the second speed gear on the mainshaft.
Coat the second- and third-speed synchronizer sleeve
bore and mainshaft with a light coating of grease,
artillery and automotive (GAA), MIL-L-10924. Start
the sleeve on the mainshaft. Place into the press, face
down, between two parallel bars. Press sleeve into
position and secure it using a new snapring. See figure
3-37 for positioning of the second- and third-speed
synchronizer.
(2) Coat the fourth-speed gear sleeve and
mainshaft with white lead, Fed Spec TT-W-261C.
Make an opening in the adapter puller large enough
to slip through. Position the third-speed gear and
fourth-speed gear sleeve to main drive shaft and press
into place. See figure 3-35 for the correct positioning
of third-speed gear and fourth-speed gear sleeve.
(3) Install mainshaft fourth-speed gear and thrust
washer. Secure in place using a new snapring.
NOTE
Be sure snapring is fully seated
mainshaft groove.
d. Mainshaft Rear Bearing Cap.
(1) Press seal into place using a
and a press.
(2) See fig. 3-22 for positioning
in the
block of wood
of seal.
e. Input Shaft.
(1) Place the input shaft ball bearing on the input
shaft. Place the input shaft between two parallel
blocks, spline downward. Using an arbor press, press
the input shaft ball bearing onto the shaft. Secure
bearing to input shaft using a new snapring. See fig.
3-33 for positioning of bearing and snapring.
NOTE
Coat the input shaft and ball bearing bore
with white lead pigment, Fed Spec TT-W-
261C, before pressing the ball bearing
assembly on the shaft.
(2) Coat the input shaft roller bearing bore with
a light coating of grease, artillery and automotive
(GAA), MIL-G-10924. Install the input shaft roller
bearings. Insert the last roller bearing endwise into the
bearing assembly.
(See para 3-9 note.)
3-11. Assembly.
a.
Install countershaft front bearing and washer.
(See fig. 3-32.)
b.
Install new countershaft front bearing retainer.
(See fig. 3-32.)
c.
Install countershaft
d.
Install countershaft
snapring.
e.
Install countershaft
assembly. (See fig. 3-31.)
rear bearing (fig. 3-30) and
rear bearing retaining nut.
Tighten nut to 120-150 lb-ft torque. Secure nut to
mainshaft using a new cotter pin (fig. 3-30).
NOTE
After applying torque, tighten nut to
closest cotter pin hole.
Figure 3-46. Removal of Lower Shift Lever,
Lever Spring, and Spring Cap.
3-19
Back to Top
