John Deere stx38 - Manual (Page 269)

3/21/97
6 - 37
HYDROSTATIC POWER TRAIN REPAIR
8. Remove and discard axle seals (E) from both sides.
Replace with new seals every time axles are
removed.
K-55 Inner Axle Bushings
9. Inspect upper case half outer left and right axle
bushings for scoring, pitting, wear, or
discoloration.
10. Measure inside diameter of bushings (F) and K-55
inner left and right axle bushings (G).
11. If bushings exceed specification, replace upper
case half (outer bushings are not serviced) and
both K-55 inner axle bushings, replace as a set
only.
K-50 Version
K-55 Version
NOTE: One of the main differences in the K-55 version
from the K-50 version are the two inner axle
bushings (G) and their seat grooves (R).
12. Inspect thrust washers (H), c-rings (I), and bevel
gear (J) recess surfaces (N) for scoring, pitting, or
wear.
13. Inspect axle bevel gears (J) for wear, scoring,
pitting, chipped or broken teeth, and worn,
chipped, or broken splines. Gears should have 16
teeth.
14. Inspect differential ring gear (L) for wear, scoring,
pitting, chipped or broken teeth, and cross-shaft
notch wear. Ring gear should have 98 teeth.
15. Inspect differential cross-shaft (Q) and bevel gears
(P) for wear, scoring, pitting, discoloration, and
chipped or broken teeth. Gears should have 10
teeth. Measure inside diameter of gears and
outside diameter of cross-shaft.
16. Inspect axle shafts for scoring, pitting,
discoloration, damaged c-ring and snap ring
grooves, damaged keyways, and chipped or
broken splines. Measure axles outside diameters.
17. Replace components as necessary.
IMPORTANT: Axle shaft seals (O) must be
replaced every time axles are remove. Protect
new seals by wrapping tape over splines and c-
ring grooves of axle shafts before assembly.
18. Inspect upper case journals (K) and K-55 extra
bushings seat grooves (R) for excessive wear,
scoring, pitting, or discoloration. Replace as
necessary.
Specifications:
Bushing ID (maximum) . . . . . . . . 19.2 mm (0.76 in.)
Bevel gears ID (maximum) . . . . 15.11 mm (0.60 in.)
Cross-shaft OD (minimum) . . . 14.96 mm (0.589 in.)
Axles OD (minimum) . . . . . . . . . . . 19 mm (0.748 in.)
M58222
E
M58223
F
G
M58350
M58220
K
H I
J L I H
N
O
P
P
O
Q
M
J
G
G
M58351
R