2-M13
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
TRANSMISSION
(1) Basic Actions in Dual-Acting Overrunning 4WD Mode
â– When the engine is not running or the speed
change gears are in neutral position
The center cam (5) is held against the drive cam (4)
by force of the return spring (6).
In this state, the power is not transmitted to the driven
cam (1) and the rear wheels are not driven either.
W1017048
â– When the machine is operated or the front wheels
are slipping
When the RWD shaft 1 starts turning, the drive cam
(4) is activated.
When the drive cam (4) is about to produce more
turns than the driven cam (1), the center cam (5) is
moved to the left by the drive cam (4) due to the friction
between the brake ring (2) and the brake shoe (3).
In this way the center cam (5) and the driven cam (1)
are activated by the driven cam (1), which drives all the
four wheels.
W1017156
(1) Driven Cam
(2) Brake Ring
(3) Brake Shoe
(4) Drive Cam
(5) Center Cam
(6) Return Spring
F : Front Side
R : Rear Side
(1) Driven Cam
(2) Brake Ring
(3) Brake Shoe
(4) Drive Cam
(5) Center Cam
(6) Return Spring
F : Front Side
R : Rear Side
a : More Turns
b : Fewer Turns