Automatic Travel Speed Control - Daewoo Solar 300LC-V Manual

AUTOMATIC TRAVEL SPEED CONTROL

16
Hi
Low
Figure 60
Reference
Number
3
4
6
7 Pressure Switch (Py)
8 Pump Pressure Sensor
If the automatic travel speed control switch is set to the "OFF" position, the travel motor will run in the I-
speed (low speed) range. If the selection switch is set to the "I" position, the travel motor will run in the II-
speed (high speed) range. If the selection switch is set to the "II" position, the e-EPOS controller will
monitor the main pump discharge pressure and automatically select the "ON" - "OFF" status of the II -
speed travel solenoid valve based on the travel load. The travel speed is changed between the I-speed and
the II-speed mode.
The travel load is monitored by the two pressure sensors in the discharge lines of the front (upper) and rear
(lower) pumps. When the travel load is high (pressure over 300 kg/cm
turned "OFF" and I-speed (low) is selected. In the case when the travel load is low (pressure under 160 kg/
2
cm (2,280 psi), the solenoid valve will be turned "ON" and the II-speed will be selected. But, if the engine
speed control switch dial is set below approximately 1400 rpm, the travel speed will be set to I-speed
mode.
Electrical System
6
3
8
17
Description
Engine
Main Pump
Control Valve
6
8
13
5
Reference
Number
13 Solenoid Valve (High speed)
14
16
17
20
2
(4,300 psi) the solenoid valve is
14
ARS1160L
Description
Travel Motor
Engine Control Dial
e-EPOS Controller
Selection Switch For
Automatic Travel
S0802220K
Page 63