Doosan DL200, Operation And Maintenance Manual

Page: 98 / 256

OP000507 Operating Controls
2-38
17. Boom Float Switch (Optional)
Boom float allows the bucket to follow the contour of
the ground/working surface. When pressing this switch
and setting work lever to float position, the lever is
locked (detent) and boom is lowered. When boom is
matched to setting position, the lever lock is released,
and lever is returned to "NEUTRAL" position. Boom
lowering is stopped.
O. In this position, this switch turns "OFF" boom
float.
I. In this position, this switch turns "ON" boom float.
18. Load Isolation System (LIS) Switch
(Optional)
This switch enables the boom cylinder to absorb shock
loading of the machine during traveling and working. It
improves dynamic stability, machine life, and
comfortability. It is most effective when traveling with
load in the bucket.
O. In this position, the LIS turned "OFF."
I. In this position, the LIS turned "ON" at all travel
speeds.
II. In this position, the LIS will "AUTOMATICALLY
TURN ON" if the forward travel speed exceed 6
km/h (3.7 MPH) or reverse travel speed exceed 4
km/h (2.5 MPH). LIS will automatically turn "OFF"
if the forward speed is less than 4 km/h (2.5
MPH) or if reverse travel speed is less than 2
km/h (1.2 MPH).
19. Seat Heater Switch (Optional)
This switch is used to operate the seat heater. When
the switch is pressed, the seat heater starts to heat
seat.
O. In this position, this switch turns "OFF" seat
heater.
I. In this position, this switch turns "ON" seat heater.
HAOA751L
O
Figure 74
O
I
II
FG004256
Figure 75
O
I
FG004189
Figure 76