National Crane Published 12-21-2011 CTRL #050-09 3-1
1300A OPERATORS MANUAL CONTROLS AND OPERATING PROCEDURES
SECTION 3
CONTROLS AND OPERATING PROCEDURES
This section contains information on the controls and
operating procedures to include:
• Truck Cab Controls
• Outrigger Controls
• Crane Controls
• Operating Procedures
• Hoist System Operation
• Work Site Location
• Load Chart
• Lifting the Load
• Shutdown and Preparation for Travel
TRUCK CAB CONTROLS
The truck cab controls described here are those controls that
are used in conjunction with the crane controls.
Truck Cab Ignition Switch
Truck cab ignition switch must be OFF in order for crane cab
ignition switch to be operable.
Power Take Off
Manual Shift Control
The PTO is engaged when the knob on the dash or floor is
pulled out and disengaged when the knob is pushed in. The
truck gear shift lever must be in neutral and the clutch
depressed whenever the knob is moved.
Air Shift Control
The PTO is engaged when the switch is moved to apply air to
PTO and disengaged when switch is in off position. The truck
gear shift lever must be in neutral and clutch depressed
when switch is moved. The transmission selector lever must
be returned to “N” for stationary vehicle operation. The
power take-off may be disengaged while in any transmission
range provided that the load has first been removed from the
PTO.
Electric Shift Control
Full torque electric shift PTO’s are controlled by a switch. To
operate, disengage the clutch, shift to fourth or fifth gear, and
operate the switch down to engage the PTO or up to
disengage the PTO. Return the gear shift to neutral and
engage the clutch.
Power Shift Control
If the vehicle is equipped with automatic transmission, the
power take-off must be engaged with the engine at idle. See
transmission manufacturer’s instructions for special
procedures.
Park Brake
The truck brake must be firmly set before leaving cab to
begin operation. If the ground surface is icy or slick or is
sloped, you may be required to help immobilize the truck with
wheel chocks.
Engine Speed Governor
Some diesel engines are equipped with a variable speed
governor which overrides the engine speed governor. If
equipped, two knobs in the cab select between crane
operation and normal driving operation.
Neutral Start/Safety Switch
Truck must be equipped with neutral/start safety switch on
truck transmission. Check occasionally to ensure it is
working correctly and repair if it is not.
OUTRIGGER CONTROLS
Outrigger Control Box
The handheld outrigger control box (Figure 3-1) is located in
the stowage compartment at the back of the crane. The
controls are electrically operated and include four outrigger
selector switches, a extend/retract switch, and an optional
front stabilizer switch. A remote engine throttle is located
under the door of the crane cab for engine speed control
when operating the outriggers.
Crane Level Indicators
The crane has one primary, one secondary level indicator
and one optional secondary level indicator. The primary level
indicator is used to verify the accuracy of the secondary level
indicators.
The primary level indicator is located at the back of the crane
at the top of the rear outrigger box (1) (Figure 3-1). The
secondary level indicator is located on the back of the truck
down on the T-box frame (6) (Figure 3-1).
The optional secondary level indictor is located in the crane
cab (4) (Figure 3-3) and is installed when a second handheld
outrigger control box for the crane cab is purchased.
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