Cub Cadet 8454 - Manual (Page 165)

TRANSMISSION SYSTEM
4-61 D569-W02 May-2003
D. DIFFERENTIAL GEAR ASSEMBLY
a. To Disassembling
1. Loosen eight UBS bolts (14) on differential case (right)
(13) to Disassembling shim (17), differential side gear
22 (7) and 39 spiral bevel gear (4).
2. Disassembling parallel key (10), differential pinion
shaft 1 & 2 (8), (9), differential pinion (11), differential
pinion washer (12), shim (17) and differential side
gear 22 (6) in the differential case in due order.
b.To Assemble
1. Install shim (17), differential side gear (6), differential
pinion washer (at four places) (12), differential pinion
(at four place) (11), differential pinion shaft1 & 2 (8),
(9) and parallel key (16) in the differential case (5) in
due order.
2. Insert 37 spiral bevel pinion (4) onto differential case
(left) (5).
3. Place differential side gear (7) and shim (17) on the
right side of differential case (5), and tighten right dif-
ferential case (13), left differential case (5) and 37
spiral bevel pinion (4) with eight UBS bolts (14) after
applying LOCTITE on.
4. Fix two parallel pins (16) at right differential case (13).
• When assembling, decide the number
of shim (17) so to allow backlash be-
tween differential side gear (6) and dif-
ferential pinion (11) to be 0.13 ~ 0.25
mm (0.005 ~ 0.0098 in.)
→
Shim thick-
ness: t1.5, t1.6, t11.7.
Confirmation of Reaching Up
Apply minimum lightly on several thrashing faces at 3
equally divided positions in the circle circumference of
the spiral bevel gear and turn the shaft of the spiral
bevel pinion with a load on the spiral bevel gear, then
to confirm its reaching up.
- Degree of reaching up:
As of 35 % min. the center is 1/3 ~ 2/3 away from
minor section
Tightening
torque Tightening bolt of
the differential
bearing case
Tightening bolt of
the differential
gear case
Tightening bolt of
the differential
gear case and the
cap
48.0 ~ 55.9 N·m
4.90 ~ 5.70 kgf·m
35.4 ~ 41.2 lbf·ft
48.0 ~ 55.9 N·m
4.90 ~ 5.70 kgf·m
35.4 ~ 41.2 lbf·ft
60.8 ~ 90.2 N·m
6.20 ~ 7.20 kgf·m
44.8 ~ 66.5 lbf·ft
Tightening
torque UBS bolt (14)
tightening of the
differential case
60.8 ~ 90.2 N·m
6.20 ~ 9.20 kgf·m
44.8 ~ 66.5 lbf·ft
(4) Spiral Bevel Gear
(5) Differential Gear Case
(6,7)Differential Side Gear
(8) Differential Pinion Shaft 1
(9) Differential Pinion Shaft 2
(10) Key
(11) Differential Pinion
(12) Differential Pinion Washer
(13) Differential Case
(14) Bolt
(15) Bolt
(16) Parallel Pin
(17) Shim
(18) Differential Lock Shift
569W498A
569W499A
CAUTION