Doosan DL220, Руководство по эксплуатации и обслуживанию

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OP001015 Inspection, Maintenance and Adjustment
4-78
Steering Pump Pressure
1. Attach gauge to port (3, Figure 110).
2. Adjust relief valve cartridge on steering valve (Figure 113).
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 110).
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 110).
2. Adjust relief cartridge (Figure 114) 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 115) of
front axle.
2. Outlet pressure must be 45 ± 3 kg/cm
2
(640 ± 3 psi).
FG002228
Figure 113
+2
0
+28
0
FG008110
Figure 114
2
1
FG008111
Figure 115