Doosan DL200, Operation And Maintenance Manual

Page: 223 / 256

OP000509
4-79
Inspection, Maintenance and Adjustment
Steering Pump Pressure
1. Attach gauge to port (3, Figure 114).
2. Adjust relief valve cartridge on steering valve (Figure
117). Cartridge must be adjusted to open at 200 ±5
kg/ cm
2
(2,844 ±70 psi).
3. Unscrew plug and washer. Adjust screw that is beneath
plug. Turn screw clockwise to raise relief pressure.
Turn screw counter clockwise to lower relief pressure.
4. Install plug and washer after pressure has been
adjusted.
Transmission Clutch Pressure
1. Attach gauge to port (4, Figure 114).
2. It is not impossible to adjust pressure.
NOTE:
Transmission clutch pressure is 16 kg/cm
2
(228 psi).
Control Lever Activation Pressure
1. Attach gauge to port (5, Figure 114).
2. Adjust relief cartridge (Figure 118) on brake and pilot
and fan motor supply valve. Relief pressure must be
set at 28 - 30 kg/cm
2
(398 - 427 psi).
3. Loosen lock nut on adjusting screw. Turn adjusting
screw clockwise to raise relief pressure. Turn adjusting
screw counterclockwise to lower relief pressure.
4. Tighten lock nut after adjustment has been made.
Service Brake Outlet Pressure
1. Attach gauge to brake pressure test port (1, Figure
119) of front axle.
2. Outlet pressure must be 45 ±3 kg/cm
2
(640±3 psi).
FG002228
Figure 117
+2
0
+28
0
FG008110
Figure 118
2
1
FG008111
Figure 119