OP001013Operating Controls
2-36
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 75
O
I
II
FG004256
Figure 76
O
I
FG004189
Figure 77
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