Product Manual
Table Of Contents
- Section 1: Introduction and Safety
- Section 2: General Information
- Section 3: Operation
- Unit Setup
- Raising the Mast—Manual Winch
- Raising the Mast—Electric Winch (If Equipped)
- Prestart Checklist
- Starting Unit—Analog Controls
- Starting Unit—Power Zone Controls (MANUAL Mode)
- Starting Unit—Power Zone Controls (AUTO Mode)
- Operating Lights—Analog Controls
- Operating Lights—Power Zone Controls (MANUAL Mode)
- Operating Lights—Power Zone Controls (AUTO Mode)
- Shutting Down Unit—Analog Controls
- Shutting Down Unit—Power Zone Controls (MANUAL Mode)
- Shutting Down Unit—Power Zone Controls (AUTO Mode)
- Automatic Shutdown
- Starting Utility Mode (If Equipped)—Analog Controls
- Starting Utility Mode (If Equipped—Power Zone Controls
- Stopping Utility Mode (If Equipped)—Analog Controls
- Stopping Utility Mode (If Equipped)—Power Zone Controls
- Dusk-to-Dawn Sensor (If Equipped)
- Customer Convenience Receptacles (If Equipped)
- Removing Loads from Receptacles (If Equipped)
- Storing the Unit
- Lowering the Mast—Manual Winch
- Lowering the Mast—Electric Winch (If Equipped)
- Positive Air Shutdown (PAS) (If Equipped)
- Lower Radiator Hose Heater (If Equipped)
- Tandem Tow (If Equipped)
- Telemetry (If Equipped)
- Spark Arrester (If Equipped)
- Heated Fuel Filter (If Equipped)
- Towing the Unit
- Lifting the Unit
- Tying Down the Unit
- Section 4: Maintenance
- Section 5: Troubleshooting
- Section 6: Wiring Diagrams
38 Owner’s Manual for Mobile Light Tower
Operation
Test the PAS at least once a month to ensure optimal
valve performance. There are two methods:
1. Pull the T-handle. (NOTE: The valve must be open
before testing.)
2. Press the emergency stop button.
Testing the PAS triggers an actuator, closing the butterfly
valve inside the valve body. An audible click can be
heard when the actuator engages. Confirm that the valve
is closed by verifying that the knob has rotated
perpendicular to the pipe centerline. If valve does not
close, contact Generac Mobile Technical Support.
Reset the PAS
IMPORTANT NOTE: Before resetting the PAS, turn
the control power switch OFF (O). This will prevent
unexpected engine start-up during the procedure.
1. Rotate the reset knob and hold it in place while
pulling the T-handle until reset knob rotates coun-
terclockwise into plunger detent. An audible “click”
indicates the reset knob has seated properly.
2. Verify that the reset knob is parallel to the intake
pipe centerline.
3. Release T-handle, and then release reset knob.
The reset knob should remain parallel to the intake
pipe centerline.
Lower Radiator Hose Heater
(If Equipped)
The lower radiator hose heater is designed to prevent
engine coolant from freezing in extreme cold weather
conditions. While the heater is designed to be operated
overnight if necessary, 2–5 hours of heating just prior to
starting is usually sufficient for proper engine starting.
NOTE: Use the lower radiator hose heater only in its
designated location. Incorrect use can damage the
engine.
Proceed as follows when operating a unit equipped with
a lower radiator hose heater.
1. Verify the unit is level to maintain correct orienta-
tion of the heater while it is in operation.
2. Verify the cooling system is full of the correct
mixture of water and engine coolant before each
heater use.
3. Use only an undamaged, outdoor rated, three-
prong grounded 120VAC extension cord with a
minimum amperage rating of 10A. Connect the
cord to a properly grounded 120VAC GFCI outlet.
4. Before starting the engine, unplug the extension
cord from the power first, then unplug the heater
cord set from the extension cord.
Tandem Tow (If Equipped)
See Figure 3-63. The tandem tow hitch option (A) allows
the operator to tow a second MLTS Light Tower in series
behind the unit equipped with the hitch.
Figure 3-63. Tandem Tow
IMPORTANT NOTE: Never tow more than two units
at once.
• Connect any trailer wiring to the unit in front (B).
Inspect for proper operation of the directional and
brake lights.
• Connect the towing chains to the tie down locations
(C).
• Avoid sharp turns when towing. Do not cross any
obstacles more than 12 in (30.5 cm) deep.
• Tandem tow speeds:
a. Paved highway—45 mph (72 km/h)
b. Graded gravel—25 mph (40 km/h)
c. Cross country—10 mph (16 km/h)
Telemetry (If Equipped)
The digital telemetry option enables the operator to
remotely monitor the unit fuel level. A transmitter inside
the engine compartment sends real time equipment
status information to the user via cellular or satellite
connection.
Spark Arrester (If Equipped)
A spark arrester, installed on the unit exhaust, may be
required by code in certain municipalities. Contact the
local authority having jurisdiction to determine if a spark
arrester must be installed on the unit before operation.
Heated Fuel Filter (If Equipped)
See Figure 3-64. An optional heated fuel filter (A)
prevents diesel fuel from gelling in extremely cold
temperatures. Heating cycles are automatically
controlled by the Power Zone Autolight.
004770
A
C
B