(12)
Lift bevel gear (15) out of the mount-ing
position.
(13) Remove thrustwasher (14), two dowels
(17), and two flanged sleeve bearings (10 and 13) from
gudgeon (11).
(14) Remove bearing (9) from gear (7), and
pivot center gudgeon (11) from upper frame.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts and dry thoroughly.
(2) Inspect shaft for straightness, worn
bearing surfaces or other damage. Inspect gears for
chipped or worn teeth. Inspect bearings for scoring or
excessive wear. Inspect mounting hardware for damage
or defect.
(3) Repair by replacing damaged, defective or
worn components, and defective mounting hardware.
c. Reassembly and Installation.
(1) Install pivot center gudgeon (11, fig. 4-17)
in upper frame. Install two flanged sleeve bearings (10
and 13), two dowels (17), and thrust washer (14) on pivot
center gudgeon (11).
(2) Position the block bevel gear (15) in
mounting position beneath revolving frame.
(3) Use suitable sling and lifting device to
install shaft (12) in pivot center gudgeon (11).
(4) Slide bevel gear (15) up on shaft (12) and
secure with retaining ring (16).
(5) Install fitting (4) on upper end of shaft (12).
(6) Install flanged sleeve bearing (9) in gear
(7).
(7) Use suitable sling and lifting device to
install gear (15, fig. 4-2) on top of shaft (21). Install jaw
clutch (16) in gear (15).
(8) Position shifter collar halves (18) on jaw
clutch (16) and secure with bolts (17), lockwashers (19)
and nuts (20).
(9) Connect lubricating line (10) to shifter
1
Bolt (2 rqr)
collar half (18) and secure with connector (18, fig. 4-17).
2
Shifter collar half (2 rqr)
3
Jaw clutch
(10) Install vertical propelling shaft gear-guard
4
Fitting
(TM 5-3810-201-12).
5
Lockwasher (2 rqr)
(11) Install propelling gear oil pan (TM 5-3810-
6
Nut (2 rqr)
201-12).
7
Gear
(12) Service propelling gear oil pan (LO 5-
8
Pipe coupling (2 rqr)
9
Bearing
3810-201-12).
10
Sleeve bearing, flanged
11
Pivot center gudgeon
12
Vertical propelling shaft
13
Sleeve bearing, flanged
14
Thrust washer
15
Bevel gear
16
Retaining ring
17
Dowel
18
Connector (2 rqr)
19
Line
20
Pipe nipple
Figure 4-17. Vertical propelling shaft and pivot Center
gudgeon, exploded view.
4-25
