floor along the left side of the operator's seat. It has three
positions; open, half, and closed.
from causing a fire hazard. To reset after
tripping, press in the circuit breaker button.
ii. Heat Control Levers (C, fig. 13). The heat
control levers are mounted in the duct work where it
enters the cab at the back by the right side of the
Pulling out on the circuit breaker
operator's seat. They provide control of the heat through
button breaks all electrical circuits to
the various ducts. They have four position settings from
the heater. Do not attempt to stop
open to closed.
heater operation with the circuit
15. Crane-Shovel Controls and Instruments
breaker. Stopping heater operation
a. Reversing Clutch Lever (A, fig.
with the circuit breaker prevents the
reversing clutch lever is located in front of the operator
heater from purging itself at the end of
and to the left. This lever controls the direction of the
the operating cycle.
swing motion of the revolving superstructure.
b. Horn Button (A, fig. 14). The horn button
switch is located on the right side of the
mounted at the handle end of the reversing clutch lever.
heater control panel. It is a three-position
Press button to sound crane-shovel horn.
toggle-type switch with ON-HI (up), OFF
(center) and ON-LO (down) used to select
c. Boom Hoist Lever (A, fig. 14). The boom hoist
the desired heater range.
lever is located directly in front of the operator to the right
of the reversing clutch lever and controls the boom hoist
hh. Radiator Shutter Control Lever
D, fig. 13).
The radiator shutter control lever is mounted on the cab