Doosan DX700LC Operation And Maintenance Manual page 180

Shear Pedal Valve (Optional)
Activating Shear with Pedal Valve
1. Select "SHEAR" with selector switch on right panel.
2. Make sure that stopper (Figure 85) is in "SHEAR" position.
NOTE: When stopper is in "SHEAR" position, pedal
valve can be moved/rocked in both directions.
3. Two-way operation is possible by rocking pedal back and
forth between positions (1 and 2, Figure 83). When pedal is
in its center (at rest) position, valve is in "NEUTRAL" and
hydraulic oil flow is stopped.
4. Before operating attachment, be sure to check function
controlled by direction of pedal movement.
Activating Breaker with Pedal Valve
1. Select "BREAKER" with selector switch on right panel.
2. Make sure that stopper (Figure 85) is in "BREAKER"
position.
NOTE: When stopper is in "BREAKER" position, pedal
valve can be only moved in one direction.
3. With the stopper in "BREAKER" position, pedal can only
be pressed in direction (1, Figure 83). When pedal is in its
center (at rest) position, valve is in "NEUTRAL" and
hydraulic oil flow is stopped.
Stopper Positions
The stopper has three positions;
Shear
Breaker
Locked
1. Rotate knob (3, Figure 84) clockwise in direction of arrow.
The stopper (4) then engages or disengages the pedal
bracket (5). The pedal can then function according to
displayed symbol shown by knob rotation.
When only operating breaker or shear using joystick
button(s), and it is not being controlled by pedal, make
sure stopper is in "LOCKED" position to prevent pedal
from being activated.
Operation
3-38
CAUTION
1
2
Figure 83
5
4
Figure 84
Figure 85
FG016187
3
FG016188
Breaker
Lock
Shear
FG016196
OP001122