TM 5-3895-372-34
Section II. REPAIR OF REVERSING GEAR BOX
6-11.
Introduction. The reversing gear box of the mixer body reverses shaft rotation at a 1:58 speed
ratio.
6-12.
Removal. Refer to TM 53895-372-20.
6-13.
Disassembly.
a. Remove drain plug (41, fig. 6-4) and drain oil from gear box.
b.
Remove four bolts (11) and washers (10) securing top cover (12) and gasket (13) to gear box housing (42).
c.
Remove four bolts (38) securing bearing cap (37) and gasket (40) to rear input side of housing (42).
d.
Remove four bolts (17) securing bearing cap (16) and gasket (14) to front input side of housing.
e.
Remove gear (4) and shaft assembly from housing.
f.
Using a bearing puller, remove bearings (2 and 8) from input shaft (6).
g.
Remove snaprings (3 and 7) from input shaft (6).
h.
Slide gear (4) and two spacers (5) off shaft.
i.
Remove four bolts (18) securing bearing cap (19) and gasket (21) to front drive side of housing.
j.
Remove four bolts (36) securing bearing cap (35) and gasket (33) to rear drive side of housing.
k.
Remove bearings (27 and 31) from drive shaft (28).
/.
Tap drive shaft (28) out of drive gear (30) and remove drive gear (30) and spacer (29) from housing (42). To
remove drive gear (30) from housing, pull through top access opening in housing.
m.
Remove key (39) from drive shaft (28).
n. Remove six hex huts (22) and lockwashers (23) securing mounting plate (25) and gasket
(24) to housing (42).
o.
If necessary, six studs (26) may be removed from mounting plate (25) by unscrewing.
p.
Remove bearing cup (9) from bearing cap (16) using a suitable puller. Remove seal (15) from bearing cap
(16).
q.
Remove bearing cup (20) from bearing cap (19) using a suitable puller.
r.
Remove bearing cup (32) from bearing cap (35) using a suitable puller. Also, remove seal (34) from bearing
cap (35).
s.
If necessary, fitting (44) and plug (43) may be removed.
6-7
