Isuzu KB P190. Manual — part 1190
Manual Transmission (MUX) 7B1-41
2. Use a bench press to remove the 5th input collar
and input middle bearing from the input shaft.
3. Remove the oil catch impeller from the input shaft.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage or any other abnormal conditions are
found through inspection.
Input Shaft Run-out
• Install the input shaft to V-blocks.
• Use a dial indicator to measure the input shaft
central portion run-out.
If the measured input shaft run-out exceeds the
specified limit, the input shaft must be replaced.
Ball Bearing Play
Use a dial indicator to measure the ball bearing play.
If the measured value exceeds the specified limit, the
ball bearing must be replaced.
Installation
1. Install the oil catch impeller (1) to the input shaft.
Notice:
Direction of assembling exists. (Groove opening area
to be bearing side.)
Limit
0.05 mm
(0.002 in)
RTW75CSH000201
Standard
Limit
0 - 0.066 mm
(0 - 0.0026 in)
0.1 mm
(0.004 in)
RTW77BSH002301
LNW25CSH029201
7B1-42 Manual Transmission (MUX)
2. Use a bench press and installer 5-8840-2346-0 (1)
to install the 5th input collar and input middle
bearing to the input shaft.
Notice:
• Direction of assembling exists. (Groove of outside
periphery to be collar side.)
• The bearing must be press fitted with end surface of
shaft.
• The collar must be press fitted with end surface of
bearing.
• The outer race must not be punch. (Inner race to be
push.)
3. Use a bench press and installer 5-8840-2346-0 (1)
to install the 3rd input collar to the input shaft.
Notice:
The collar must be press fitted with end surface of the
5th collar.
RTW77BSH007001
1
RTW75CSH000301
1
RTW75CSH000401
1
Manual Transmission (MUX) 7B1-43
Counter Shaft Assembly
Component
Legend
1. Reverse counter snap ring
2. Counter front roller bearing outer race
3. Counter front roller bearing inner race
4. Reverse synchronizer assembly
5. Reverse block ring
6. Reverse counter gear assembly
7. Reverse counter gear needle bearing
8. 1st counter snap ring
9. 1st counter collar
10. 1st counter gear assembly
11. 1st counter gear needle bearing
12. 1st-2nd inside ring
13. 1st-2nd outside ring
14. 1st-2nd block ring
15. 1st-2nd synchronizer assembly
16. 2nd counter gear assembly
17. 2nd counter gear needle bearing
18. Counter shaft
19. Counter middle roller bearing inner race
Removal
1. Use a pair of snap ring pliers to remove the
reverse counter snap ring.
2. Remove the counter front roller bearing outer race.
RTW77BLF001601
1
2
3
4
5
6
7
8
9
10
11
12
13
19
18
17
16
12
13
14
15
14
7B1-44 Manual Transmission (MUX)
3. Use a bench press to remove the reverse counter
gear assembly together with reverse block ring,
reverse synchronizer assembly, and counter front
roller bearing inner race.
4. Remove the reverse counter gear needle bearing.
5. Remove the 1st counter snap ring.
6. Use a bench press to remove the 2nd counter gear
assembly together with 1st-2nd synchronizer
assembly, inside ring, outside ring, block ring, 1st
counter gear assembly, and 1st counter collar.
7. Use a bench press to remove the counter middle
roller bearing inner race.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage or any other abnormal conditions are
found through inspection.
Block Ring and Dog Teeth Clearance
Use a thickness gauge to measure the clearance
between the block ring and the dog teeth.
If the measured value exceeds the specified limit, the
block ring must be replaced.
RTW75CSH000601
RTW75CSH000701
Standard
Limit
Reverse
1.5 mm
(0.059 in)
0.8 mm
(0.031 in)
RTW75CSH000501
LNW25CSH028401
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