Page 962 - Workshop Manual - Aumark (BJ1051)

31B-42
Transmission 6g 120- Secondary axle assembly

16. remove the first-shifting and secondary-shifting
synchronizers from the secondary axle

17. disassemble the first-shifting and
secondary-shifting synchronizer springs, slides
and synchronizer gear ring and gear seat.
(a). Inspect the synchronizer gear ring and gear seat.
(refer to “chapter 31 b transmission 6g
120-secondary-axle assembly, overhaul”)

18. remove the secondary-shifting synchronizer ring
(a). Remove the secondary-shifting synchronizer ring.
Hint:
Label for the second-shifting synchronizer ring after
31B removal.

(b). Inspect the synchronizer ring. (refer to “chapter 31 b
transmission 6g 120-secondary-axle assembly,
overhaul”)
(c). Remove the second-shifting gear and the needle
bearing.

19. detect the secondary axle
(a). Measure the secondary-axle circular run-out.
Circular run-out
Model
Standard Limit

6G120 0.03mm 0.10mm

If the circular run-out is beyond the limit value, replace
with a new secondary axle.

Page 962