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)
- Raising the Mast—Power Zone- DLA (If Equipped)
- Prestart Checklist
- Starting the Unit (Key Switch Models)
- Preparing for Start-Up (Power Zone–DLA)
- Manually Starting the Unit
- Light Operation (Key Switch Models)
- Light Operation (Power Zone– DLA) (If Equipped)
- Engine Derating
- Wet Stacking
- Dusk to Dawn Sensor (Power Zone–DLA) (If Equipped)
- Customer Convenience Receptacles
- Shutting Down the Unit
- Shutting Down the Unit (Power Zone–DLA) (If Equipped)
- Lowering the Mast—Manual Winch
- Lowering the Mast—Electric Winch (If Equipped)
- Lowering the Mast—Power Zone- DLA (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
- Mast Junction Box Wiring and Light Connections
- AC Wiring—MLT6SKDS
- AC Wiring—MLT6SMDS
- AC Wiring—MLT6SMDS With Power Zone (If Equipped)
- AC Wiring—MLT6SKDS With Power Zone (If Equipped)
- DC Wiring—MLT6SMDS
- DC Wiring—MLT6SMDS With Power Zone (If Equipped)
- DC Wiring—MLT6SKDS
- DC Wiring—MLT6SKDS with Power Zone (If Equipped)
- DC Wiring—Heated Fuel Filter (If Equipped)—MLT6SMDS
- DC Wiring—Heated Fuel Filter (If Equipped)—MLT6SKDS
- DC Wiring—Electric Winch (If Equipped) with Standard Controller
- Trailer Lights
- DC Wiring—Electric Winch with Power Zone Controller (If Equipped)
28 Owner’s Manual for Mobile Light Tower
Operation
Figure 3-12. Lights Screen
Engine Derating
All units are subject to derating for altitude and
temperature. Derating reduces the available power for
operating tools and accessories connected to the
receptacles. For every increase in 1,000 ft (305 m) of
elevation, engine performance for this unit typically drops
between 2–4%. Also, engine performance decreases
about 1% for every 10 °F (5.6 ºC) increase in ambient air
temperature over 72 ºF (22 ºC).
Wet Stacking
The unit is powered by a diesel engine. Diesel engines
are subject to “wet stacking” if lightly loaded. Wet
stacking occurs when an engine is run at less than 30%
of its full load capacity, causing unburned fuel to
accumulate in the exhaust system. Wet stacking can be
detected by continuous black exhaust when the unit is
under a constant load. It can also cause fouling of
injectors and buildup on engine valves. Diesel engines
operate properly when applied loads are between 30–
100% capacity. Appropriate generator sizing is
determined by the anticipated load. If the unit is in a wet
stack condition, load the unit heavily for five hours or until
the exhaust is clear.
Dusk to Dawn Sensor (Power
Zone–DLA) (If Equipped)
See Figure 3-13. If equipped with the Power Zone-DLA
controller, this unit includes a “dusk to dawn”
nightwatchman sensor (A) to detect the surrounding light
level, automatically starting the engine and turning the
lights on at dusk. The engine will run and the lights will
remain illuminated until dawn.
To prepare the sensor for use, perform the following
procedure at the time of day you want the lights to turn
on:
1. Unplug all equipment from convenience
receptacles.
2. Verify the Power Zone–DLA is ON, in AUTO mode,
set to DUSK TO DAWN (Figure 2-20).
3. Switch main circuit breaker to ON.
4. Slide the light shield bracket up, decreasing the
sensor’s exposure to light, until the lights turn on.
5. Tighten screws on shield.
Figure 3-13. Dusk to Dawn Sensor
Customer Convenience
Receptacles
See Figure 3-14. The unit is equipped with convenience
receptacles for powering accessories or tools from the
generator. Power is supplied to the receptacles any time
the engine is running and the main circuit breaker is
switched to the ON (I) position. Each receptacle has an
individual circuit breaker, located on the control box.
Refer to Control Panel.
002327
002327
A
002528