Page 899 - Workshop Manual - Aumark (BJ1051)

31A-17
Transmission (646b/651b)-transmission assembly

(b). Install the reverse-gear synchronizer and the retainer
ring.

21. Install the secondary-axle reverse gear
(a). Install the reverse gear needle bearing.
(b). Install the reverse gear attachment.

Notice:
• The needle steering installed in the gear shall not
be higher than the end face of the gear; otherwise,
new needle bearing shall be replaced with.
• Shake the needle bearing before installation to see
whether any needles are missed; if the bearing is
damaged, replace it in time.

22. Install the first-shifting and secondary-shifting 31A
lockpin synchronizers

Notice:
The conical surface must be towards the
secondary-shifting gear during the installation, the
gear can’t be shifted or the transmission will be even
damaged if installing in the wrong direction.

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