Cub Cadet 8404 - Manual (Page 109)

TRANSMISSION
4-5 D615-W02 May-2003
615W405A
615W404A
B. Synchro Operation
1st Stage
• By shifting the main transmission shift lever, shifter
(3) and key (2) are moved and the end of the key
contacts with cone of gear (6) with synchronizer ring
(5) pushed.
• By friction power occurred in the cone of synchro-
nizer key (2), and synchro hub (1) rotates in a body.
Intermediate Stage
• When synchronizer key (2) is not slipped any longer
by synchronizer ring (5), it will fall from shift (3) and
the key will enter the groove of the synchronizer ring.
• Synchronizer key, shift, and synchro hub (1) starts
to rotate and the synchronizer ring and gear (6), ro-
tates simultaneously by tightening the chamfering
of the shift and synchronizer ring.
(1) Synchro Hub (4) Synchronizer Spring
(2) Synchronizer Key (5) Synchronize Ring
(3) Shift (6) Gear
(1) Synchro Hub (4) Synchronizer Spring
(2) Synchronizer Key (5) Synchronize Ring
(3) Shift (6) Gear
[A] Rotating Force [B] Force to Shift