CONTROLS AND OPERATION
SECTION II
LEGEND FOR FIGURE 2-1
25.
LEFT DRUM BRAKE SWITCH
ENGINE SPEED CONTROL
01.
26.
RIGHT DRUM BRAKE SWITCH
SWING CONTROL LEVER
02.
27.
PANEL LIGHT
SWING BRAKE CONTROL SWlTCH
03.
28.
DOME LIGHT
RIGHT DRUM BRAKE PEDAL
04.
29.
TOP WIPER SWITCH
LEFT DRUM BRAKE PEDAL
06.
30.
WINDSHIELD WIPER SWITCH
LEFT DRUM CONTROL LEVER
06.
31.
HEATER CONTROL
LEFT DRUM TURN INDICATOR
07.
32.
DEFROSTER FAN SWITCH
RIGHT DRUM CONTROL LEVER
08.
33.
LOAD WEIGHING SYSTEM
RIGHT DRUM TURN INDICATOR
09.
(SEE FIGURE 2-2)
SIGNAL HORN BUTTON
10.
34.
ENGINE FAULT WARNING LIGHT
BOOM HOIST CONTROL LEVER
11.
35.
ENGINE OIL PRESSURE GAUGE
12.
PROPEL CONTROL LEVER
36.
ENGINE WATER TEMPERATURE GAUGE
PROPEL LOCK SWITCH
13.
37.
14.
ENGINE VOLTMETER
OPERATOR'S SEAT WITH SEAT BELT
THIRD DRUM CONTROL LEVER
15.
38.
FUEL GAUGE
HOURMETER/TACHOMETER
16.
39.
TORQUE CONVERTER TEMPERATURE GAUGE
17.
IGNITION AND START SWITCH
40.
TORQUE CONVERTER CHARGE PRESSURE GAUGE
STARTING AID BUTTON
18.
41.
HYDRAULIC SYSTEM PRESSURE GAUGE
19.
PANEL LIGHT SWITCH
42.
DIPPER TRIP CONTROL
20.
CLUTCH ENGAGE LIGHT
43.
ELECTRICAL SYSTEM CIRCUIT BREAKERS
21.
ENGINE CLUTCH SWITCH
44.
LEVEL
22.
BOOM HOIST RELEASE SWITCH
45.
SWING LOCK SWITCH
23.
LEFT DRUM PAWL SWITCH
46.
FLOODLIGHT CONTROLS
24.
RIGHT DRUM PAWL SWITCH
47.
TROUBLE LIGHT
16. HOURMETER/TACHOMETER. The hourmeter indi-
beyond the normal operating limits. Depress and hold this
cates the total number of hours the engine has been run.
switch, to override the boom hoist limit switch, and lower
The tachometer indicates engine speed (rpm).
the boom. While this switch is depressed the signal horn
will sound.
17. IGNITION AND START SWITCH. Rotate the key clock-
wise to energize the machine's electrical system. Turn the
key against the spring resistance to engage the engine
starter. Turn the key counterclockwise to de-energize the
electrical components and shut down the engine. The key
Do not use this switch to override the boom
must be returned to the OFF position before attempting a re-
hoist limit switch to allow the boom to be
start.
raised beyond the normal operating limits. This
18. STARTING AID BUTTON. The engine starting aid is
is an extremely dangerous operating proce-
used to assist in cold weather starting. Depress this button
dure, since the boom could be raised to the
to provide a shot of ether for cold weather starting.
point where the boom will topple over the back
of the machine.
19. PANEL LIGHT SWITCH. Rotate this switch clockwise to
illuminate the panel light. Control the brightnessof the light
by rotating the switch clockwise or counterclockwise as de-
23. LEFT DRUM PAWL SWITCH. Move this switch toward
sired.
the operator (ON) to engage the safety stop pawl into the
20. CLUTCH ENGAGE LIGHT. This green light will be lit
drum teeth of the left drum. Push the left drum control lever
when the engine clutch is engaged.
forward momentarily to lock the pawl into the drum teeth.
To release the pawl move the switch to the OFF position
21. ENGINE CLUTCH SWITCH. Move this switch toward
then pull the left drum control lever toward the operator
the operator to engage the engine clutch. Push this switch
until the drum turns, which allows the pawl to disengage
away from the operator to disengage the, engine clutch.
from the drum teeth.
24. RIGHT DRUM PAWL SWITCH. Move this switch toward
NOTE
the operator (ON) to engage the safety stop pawl into the
drum teeth of the right drum. Push the right drum control
The engine clutch switch must be in the disengaged
lever forward momentarily to lock the pawl into the drum
position in order to start the engine.
teeth. To release the pawl, move the switch to the OFF
position then pull the right drum control lever toward the
22. BOOM HOIST RELEASE SWITCH. This switch is used
operator until the drum turns, which allows the pawl to
to override the boom hoist limit switch, if the boom is lifted
disengage from the drum teeth.
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