CONTROLS AND OPERATION
3. Return to the carrier cab and release the Maxibrakes
Valve in the LOWER position. The operation of the
by pulling out the Maxibrake button.
carrier is now controlled from the carrier cab.
4. The carrier can now be operated from the upper by
remote control as follows:
A. Start the engine by turning the Ignition key to the
It is frequently necessary during crane operation for the
operator to depend on a signalman for instructions.
When moving the machine into a position where there is
B. Raise the outriggers to the stored position, if they
very limited clearance, or when handling loads that are
are extended, as described in the topic Outrigger
out of sight of the operator, the use of a signalman is
Operation. Be sure the MASTER switch on the outrigger
essential. The hand signals illustrated in Figure 2-12 are
control panel is returned to the OFF position.
those generally accepted throughout the industry. Both
the operator and the signalman should be thoroughly
C. Depress the Clutch and either the Forward or
familiar with the standard hand signals illustrated to
Reverse buttons on the carrier remote control panel to
engage either the first or reverse gear of the main
OPERATION UNDER UNUSUAL CONDITIONS
D. Release the Forward or Reverse button, while
GENERAL.. Unusual conditions refer to environment;
maintaining the Clutch button in the depressed position.
specifically, extreme cold, extreme heat, dusty or sandy
conditions, areas with high humidity or salt air, and high
E. Place the Brake switch in the BRAKE OFF
altitudes. Separate paragraphs are devoted to each of
F. Release the Clutch button to engage the clutch.
extreme cold presents special problems due to the
G. Control the speed of the carrier with the
increased brittleness of metallic and rubber parts, the
Accelerator, and steer the machine in the desired
danger of freezing and the increased difficulty of keeping
direction by depressing the Steer Left or Steer Right
parts lubricated adequately.
buttons as required.
H. Stop the carrier by first depressing the Clutch
Personnel should use care to keep
button, and then place the Brake switch in the BRAKE
from spilling fuel, coolant, or other
ON position. Maintain the Clutch button in the depressed
liquids upon themselves. Exposed
position while the carrier is stopped, or shift the
parts of the body should not come
transmission to neutral by depressing the Neutral button.
into contact with metal during cold
The Clutch button can be released when the
weather, as serious and painful injury
transmission is in the neutral.
5. To transfer control of the carrier back to the carrier
cab, perform the following steps:
recommendations for cold weather operation. Change
A. Shift the main transmission to neutral by
the lubricant if necessary.
depressing the Clutch and Neutral buttons.
2. Drain and flush the cooling system, to insure proper
B. Place the Brake switch in the BRAKE ON
circulation of coolant throughout the radiator core. Clean
the radiator cooling fins, particularly the air passages
through the core.
C. Go to the carrier cab and apply the Maxibrakes
by pushing the Maxibrake button in.
Check the condition of the radiator hoses, clamps,
thermostat and radiator core.
D. Return to the upper cab and place the Brake
switch in the BRAKE OFF position. Place the Ignition
key in the OFF position if the machine is to be completely
E. Place the Remote Control Air Valve in the carrier
cab in the OFF position. Place the Throttle Selector