Mainshaft Disassembly, Reassembly, and Inspection
Special Tools Required
Image
Description/Tool Number
Driver Handle, 40 mm I.D. 07746-0030100
Bearing Driver Attachment, 35 mm I.D. 07746-0030400
1.
Mainshaft - Exploded View
Exploded View
NOTE: Refer to the Exploded View as needed during the following procedure.
1.
Mainshaft - Disassemble
1.
Remove these parts in the following order:
-1.
42 x 63.5 x 3.5 mm thrust needle bearing (A)
-2.
3rd gear (B)
-3.
42 x 49 x 23 mm needle bearing (C)
-4.
47 x 64 x 3 mm thrust needle bearing (D)
-5.
Set ring (E)
-6.
32 x 40 x 23 mm needle bearing (F)
2.
Place 4th gear (A) on press bases (B).
3.
Place a spacer (C) between the mainshaft (D) and the press to prevent damaging the mainshaft.
4.
Remove these parts in the following order using a press:
-1.
3rd gear collar (A)
-2.
3rd/6th clutch (B)
-3.
6th gear (C)
-4.
4th gear (D)
5.
Remove these parts:
O-rings (A)
Sealing rings (B)
1.
Mainshaft - Inspect
1.
Inspect the bearings for galling and rough movement.
2.
Inspect the shaft bearing surfaces for scoring and excessive wear.
3.
Inspect the shaft splines for excessive wear and damage.
2.
6th Gear - Inspect
1.
Inspect 6th gear for wear and damage, and inspect the 6th gear bearing for wear and rough rotation.
2.
Replace the 6th gear if the gear or the bearing is worn or damaged.
NOTE: Refer to the Exploded View as needed during the following procedure.
1.
Mainshaft - Reassemble
1.
Install these parts in the following order as shown:
-1.
New sealing rings (A)
-2.
32 x 40 x 23 mm needle bearing (B)
-3.
Set ring (C)
-4.
4th gear (D)
2.
Place 4th gear (A) on press bases (B).
3.
Place a spacer (C) between the mainshaft (D) and a press to prevent damaging the mainshaft.
4.
Install 4th gear using the press.
5.
Place 6th gear (A).
6.
Press 6th gear into place using the 40 mm I.D. driver handle and the press.
7.
Wrap the shaft splines with electrical tape to prevent O-ring damage.
8.
Install new O-rings (A).
NOTE: Lubricate the O-rings with ATF before installing them.
9.
Remove the electrical tape.
10.
Install the 3rd/6th clutch (B).
11.
Place the 3rd gear collar (A).
12.
Press the 3rd gear collar into place using the 40 mm I.D. driver handle, the 35 mm I.D. bearing driver attachment, and the press.
13.
Install these parts in the following order:
-1.
47 x 64 x 3 mm thrust needle bearing (A)
-2.
42 x 49 x 23 mm needle bearing (B)
-3.
3rd gear (C)
-4.
42 x 63.5 x 3.5 mm needle bearing (D)
