F/R (Forward/Reverse) Travel Control System (Optional) - Doosan DL220 Operation And Maintenance Manual

F/R (FORWARD/REVERSE)
TRAVEL CONTROL SYSTEM
(OPTIONAL)
An optional F/R (Forward/Reverse) travel control system can be
installed as an option on the machine. With this system installed,
the operator's light-hand can remain on the steering wheel
during operation, and not have to manually move the
transmission lever between forward and reverse.
To activate system perform the following steps:
1. Place transmission lever in "NEUTRAL."
NOTE: Do not move the transmission lever out of
"NEUTRAL." If the lever is moved, the system
will be deactivated.
2. Press F/R selector switch to the "I" position, and then
release. The switch will return to the "O" position, but the
system will be activated. When system is activated, the F/
R selector indicator light (Figure 41) will be turned "ON."
Operation
3-16
Figure 39
O
I
Figure 40
30
20
40
10
50
0
km/h
Figure 41
FG005290
FG003977
15
20
10
25
5
30
0
x100r/min
STOP
FG015597
OP001014