AN
MANUAL - NV1500 (Continued)
NOTE: The synchro hub is a press fit design. There
may be instances where the press is not necessary.
As long as there is a snug fit between the hub and
the shaft, the hub does not need to be replaced.
Fig. 48 START 1-2 SYNCHRO ON SHAFT
1 - 1-2 SYNCHRO ASSEMBLY
2 - FIRST GEAR
3 - SPECIAL TOOL 6310-1
4 - BE SURE THIS IS SINGLE GROOVE SIDE OF SYNCHRO
SLEEVE
(17) Press 1-2 synchro onto output shaft with suit-
able size pipe and shop press (Fig. 49).
CAUTION: Align synchro ring and sleeve as hub is
being pressed onto the shaft. The synchro ring can
be cracked if it becomes misaligned.
(18) Install new 1-2 synchro hub snap ring (Fig.
50) with the thickest snap ring that will fit in shaft
groove. Verify snap ring is seated in shaft groove.
(19) Install second gear synchro ring in 1-2 syn-
chro hub and sleeve (Fig. 51). Verify synchro ring is
seated in sleeve.
(20) Install synchro cone into synchro ring.
(21) Install second gear needle bearing on shaft
(Fig. 52).
(22) Install second gear onto shaft and bearing
(Fig. 53). Verify second gear is seated on synchro
components.
(23) Install thrust washer pin to shaft and install
two-piece thrust washer (Fig. 54). Verify washer
halves are seated in shaft groove and pin reliefs are
positioned at washer locating pin.
(24) Seat retaining ring around two-piece thrust
washer.
MANUAL - NV1500
Fig. 49 PRESS 1-2 SYNCHRO ASSEMBLY
1 - SUITABLE SIZE PIPE TOOL
2 - SYNCHRO RING
3 - SPECIAL TOOL 6310-1
4 - 1-2 SYNCHRO ASSEMBLY
5 - PRESS RAM
Fig. 50 1-2 SYNCHRO HUB SNAP RING
1 - 1-2 SYNCHRO
2 - SPECIAL TOOL 6310-1
3 - SYNCHRO SNAP RING
21 - 17