AUSA M-50 x 4, Руководство по ремонту

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Section 03 ENGINE
Subsection 11 (GEARBOX)
VMR2004_134_03_11A.FM
03-11-13
1. Shift fork engagement pin
2. Shift drum
Insert a flat screwdriver in the slot of index lever
no. 8 . Turn screwdriver counterclockwise and re-
move shift drum.
1. Index lever
2. Shift drum
Remove:
– shift fork no. 13
– bevel gear shaft no. 21 with low range gear as-
sembly
– main gear no. 27
– O-ring no. 28 including distance sleeve from
main shaft on engine PTO side
– main shaft with high range gear assembly
– gear selection no. 22 , thrust washer no. 23 , re-
verse gear no. 25 , needle bearing no. 24 and
shim no. 26
– distance sleeve no. 14 , thrust washer no. 15 , in-
termediate gear no. 16 , needle bearing no. 17
and intermediate gear shaft no. 18 .
NOTE: It is not necessary to remove index lever
no. 8 . Check index lever for visible damage and if
it moves freely. Replace if necessary.
Inspection
Check both shift forks for visible damage, wear or
bent shift fork claws.
Measure the shift fork claw thickness.
1. Micrometer
A. Shift fork claw thickness
Check shift drum tracks for scoring or heavy wear
like rounded engagement slots.
Check index washer on shift drum for scoring or
visible damages.
1
R400motr208A
2
1
R400trans18A
2
SHIFT FORK CLAW THICKNESS
MINIMUM (new) 4.800 mm (.189 in)
MAXIMUM (new) 4.900 mm (.193 in)
SERVICE LIMIT 4.750 mm (.187 in)
1
R400trans19A
A