TM 5-3820-239-15
72
Crank pinion bearing
85
Crank pin (2)
73
Crank pinion
86
Cotter pin
74
Woodruff key
87
Nut, castellated, 7/16-20
75
Lower crank bearing
88
Pinch bolt, hex 7/16-20 x 1/58 in.
76
Screw, cap, hex-hd, 5/16 -24
89
Upper throw crank
77
90
Washer, lock 5/16 in. (4)
Lower throw crank
78
Crank shaft cap
91
Crank pin sleve (2)
79
Cylinder liner key (4)
92
Connnecting rod bushing (2)
80
Cylinder liner (4)
93
Outside connecting rod (2)
81
Piston wrist pin (4)
94
Inside connecting rod (2)
82
Piston (4)
Crank center piece
95
83
Nut, hex, 9/16-20
96
Cylinder case
84
Upper crank bearing
crank pins (85) and bend over the
sprocket fits over the shaft and the
ends of the cotter pin.
keyway is alined with the key. Secure
Install the assembled crank parts into
(10)
the parts by installing sprocket shaft
cylinder case (96), being careful not
washer (52), sprocket shaft nut (51),
to damage the pistons (82). Tilt the
and cotter pin (50).
crank as necessary to allow each
(18) Install housing cap shim (44) and
piston to enter its cylinder liner (80).
housing cap (43), and secure with
Install crank shaft cap (78).
(11)
screws (41) and lock washers (42).
Press idler wheel bushings (49) into
(12)
(19) Using a suitable bearing pusher to
idler wheels (48). Position the idler
bear on the inner race, install inner
wheels in the recess of worm housing
worm bearing (64) on worm shaft
(71) and press idler wheel shafts
(63). Install long worm spacer (65).
(47) through the housing and the
Insert worm key (67) in the slot of
bushings. Install lubrication fittings
worm shaft (63), and install worm
(46) on the idler wheel shafts.
(66) over the key on the shaft. Install
Insert worm wheel key (55) in the
(13)
short worm spacer (68).
slot of sprocket shaft (56). Aline the
keyway of worm wheel (54) with the
(20) Using a suitable bearing pusher to
key, and press the worm wheel onto
bear on the inner race, install outer
the shaft.
worm bearing (69) on worm shaft
Using a suitable bearing pusher to
(14)
(63).
bear on the inner races, press inner
(21) Install the assembled worm shaft
parts (62 through 69) in worm hous-
and 53) onto sprocket shaft (56).
ing (71), turning the shaft to engage
Install sprocket shaft washer (52)
(15)
worm (66) with worm wheel (54).
and sprocket `shaft nut (51) on the
(22) Install worm housing studs (40) and
worm wheel end of sprocket shaft
place gear case shim (70) over the
(56). Install cotter pin (50) and bend
studs on the machined surface of
over the ends to lock the nut.
worm housing (71).
Install sprocket spacer (61) and
(16)
(23) Install pipe plugs (45).
sprocket shaft gear seal (60) on the
(24) Install worm shaft grease seal (62)
sprocket end of sprocket shaft (56).
in the upper (worm housing) end of
Insert sprocket key (58) in the slot o
(17)
gear case (29).
sprocket shaft (56). Insert sprocket
(59) into the side of worm housing
(25) Mount gear case (29) over the studs
(71), and install the assembled
installed in worm housing (71), and
sprocket shaft (56), so that the
secure with self-locking nuts (30).
6-15