2004 ISUZU TF SERIES Workshop Manual

Page 3145 of 4264

ISUZU TF SERIES 2004  Workshop Manual MSG MODEL  7B-27 
 
  
 
 
REVERSE IDLER GEAR AND IDLER 
GEAR SHAFT CLEARANCE 
1.  Use a micrometer to measure the idler gear shaft diameter.
2.  Use an inside dial indicator to measure the idler gear

Page 3146 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7B-28  MSG MODEL 
 
  
BALL BEARING PLAY 
Use a dial indicator to measure the ball bearing play. 
Ball Bearing Play  mm(in)
Limit 
0.2 (0.0079) 
 
 
 
FRONT COVER OIL SEAL 
Oil Seal Replacement 
Oil S

Page 3147 of 4264

ISUZU TF SERIES 2004  Workshop Manual MSG MODEL  7B-29 
  REASSEMBLY 
 
MAJOR COMPONENT 
INTERNAL PARTS
 
 
Reassembly steps 
  1. Top & main gear shaft assembly 
  2. Counter gear shaft assembly 
  3. Rev. and 5th gear assembly 
   
  4.

Page 3148 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7B-30  MSG MODEL 
  MINOR COMPONENTS 
 
TOP GEAR SHAFT, MAINSHAFT GEAR AND COUNTER GEAR 
 
 
Reassembly Steps 
 1. Mainshaft 

 2. Needle bearing 

  3. 2nd gear 
  4. 2nd block ring 

  5. 1st-2nd

Page 3149 of 4264

ISUZU TF SERIES 2004  Workshop Manual MSG MODEL  7B-31 
 
   
 
Important Operations 
2. Needle Bearing 
3. 2nd Gear 
1)  Apply the engine oil to the 2nd needle bearing and the 2nd 
gear. 
2) Install the needle bearing and the 2nd gear to

Page 3150 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7B-32  MSG MODEL 
 
   
 
 11. Mainshaft  Ball  Bearing 
1) Apply the engine oil to the ball bearing inside 
circumference. 
2)  Use a bench press and the bearing installer to install the
bearing.

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ISUZU TF SERIES 2004  Workshop Manual MSG MODEL  7B-33 
 
   
 19. Top  Gear  Shaft 
20. Ball  Bearing 
Use a bench press and the installer to install the ball bearing 
to the top gear shaft. 
The snap ring groove must be facing the front

Page 3152 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7B-34  MSG MODEL 
  REVERSE GEAR AND 5TH GEAR 
 
 
 
Reassembly Steps 

  1. Intermediate plate 

  2. Reverse idler shaft 
  3. Bearing snap ring 
  4. Bearing snap ring 
  5. Thrust washer 

  6.