Daedong DSC48, Workshop Manual

Page: 268 / 290

7
-28 Apr. 2007
DSC48
5.3 TURNING AND CORNERING
417W732A
(1) Valve unit
(2) Brake arm
(3) Variable relief valve
(4) Power brake cable
(5) Direction control lever switch
(6) Power steering lever
(7) Brake arm (LH)
(8) Brake arm (RH)
(9) Brake return spring
(10) Direction control lever switch
(11) Point bolt
(A) Right turn
A. RIGHT TURN
1. When the lever is pushed to the right, the lever moves
around from the point bolt.
2. As the B section of the lever pin moves, the direction
control lever switch moves to the left and turns on the
switch.
3. The right turn relay of the threshing controller be-
comes ON and power is supplied to the steering
control solenoid (RH) of the steering control solenoid
valve.
4. The steering control cylinder (RH) is supplied with oil
and operates to disengage the steering clutch (RH).
5. At the same time, the brake arm (LH) is pressed to the
left side and the outer power brake cable is pulled as
the C section of the lever pin moves. The inner cable
is
fi xed to the brake arm (RH).
6. The brake arm of the valve unit is turned to the left by
the inner cable and pushes in the variable relief valve.
Therefore, the oil pressure in the right steering control
clutch cylinder rises and powerfully pushes the piston
(RH).
7. After disconnecting the steering clutch, the piston (RH)
activates the brake. The more inclination the lever
has, the more the valve is pushed in to increase the
braking power.
B. LEFT TURN
The direction control lever switch moves to the right and
turns on the left turn switch. Then, the left turn relay be-
comes ON and electric current
fl ows to the steering con-
trol solenoid (LH).
Also, as the C section of the lever pin moves, the brake
arm (RH) is pressed to the right side, the inner power
brake cable is pulled, and the variable relief valve is
pressed.