SERViCE MANUAL
Paragraphs 17-18
Aii Modeis With Mechanicai Shift
17.
R&R AND OVERHAUL. Ib remove the trans-
fer gearbox, first remove drive shaft shield and front
drive shaft as outlined in paragraph
16.
Then, remove
plug
(18—Fig.
29) and drain oil. Drive out roll pin and
remove shift lever from gearbox Place a floor jack un-
der gearbox, unbolt and carefully lower gearbox from
tractor.
Place the gearbox in a soft jawed vise with output
shaft pointing upward. Remove snap ring (6) and re-
tainer
(7).
Withdraw output shaft (8) and pry out oil
seal (9). Remove snap ring (10), then using an inter-
2S
Fig. 29—Exploded view of drive shaft and mechanicai
shift (dog ciutch) transfer case used on some models.
L
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13,
14.
15.
16.
17,
18,
19,
Front coupler
Front drive shaft
Ball bearing
Cap screws
Rear coupler
Snap ring
Retainer
Output shaft
Oil seal
Snap ring
Roller bearing
Shaft
Selector collar
Gear
Cup plug
Roll pin
Roll pin
Drain plug
Snap ring
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
Plug
Spring
Spring
Ball
Housing
Gasket
Thrust washer
Roller bearing
Pads
Bolt
Yoke
Spring
Lever (L.H.)
Nuts
Shaft
Roll pins
Lever (R.H.)
**0''
ring
nai puller CAS-10690 and slide hammer CAS-10581
or equivalent, remove shaft (12) from gearbox. Re-
move bearing (11) from shaft. Remove selector col-
lar (13), gear (14), thrust washer (26) and inner race
of bearing
(27).
Remove pads
(28),
then remove wash-
ers (33), spring
(31),
bolt (29) and washers from both
sides of shift fork (30). Drive the four roll pins (35)
into shaft (34) and withdraw shaft. Remove left le-
ver (32), detent ball (23), shift fork (30), right lever
(36) and its detent ball as shaft is removed. Remove
snap rings (19), plugs (20) and springs (21 and 22)
from both sides of gearbox. Remove cup plugs (15)
and drive roll pins (16 and 17) from both sides. Drive
roll pins (35) out of shaft (34). Clean and inspect all
parts and renew as necessary. If roller bearing (27)
shows excessive wear or other damage, use internal
puller CAS-10690 to remove.
When reassembling, use new *'O" ring (37) and oil
seal (9), then reassemble by reversing the disassem-
bly procedure. With reassembly completed, acyust
bolts and nuts (29 and 33) until shift pads (28) on yoke
are centered in selector collar (13) as shown at (a—
Fig. 30). Clearance should measure 0.0394 inch (1.0
mm) on each side when correctly adjusted. Lock the
nuts together
Reinstall transfer gearbox, using new gasket
(25—
Fig. 29). Tighten retaining bolts to a torque of 90 ft.-
lbs.
(120
N-m).
Install shift lever and secure with roll
pin. Reinstall front drive shaft and drive shaft shield
as outlined in paragraph 16. Check transmission oil
level and refill as necessary.
Aii Models With Eiectric/Hydrauiic Shift
18.
R&R AND OVERHAUL. Ib remove the trans-
fer gearbox, first remove drive shaft shield and front
drive shaft as in paragraph 16. Remove plug (17—Fig.
31) and drain oil. Disconnect electrical conduit pipe
from union near solenoid cover, then remove the un-
Flg. 30—Adjust nuts and boits on shift mechanism until
shift pads on yoke are center in selector coliar as shown
at "a."
21
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