13
Preparing to Operate the Unit
1. Make sure that the light tower trailer is level front to back
and side to side. See Leveling and Stabilizing the Light
Tower Trailer.
2. Open the control compartment cover.
3. Determine the mode of operation: Stand-Alone or
Chained.
Stand-Alone:
• For stand-alone operation, a single NLGR-Series
Chain unit can be powered using either the NEMA
5-15P inlet (A, Figure 14) or NEMA L5- 20P inlet (B).
• Use an appropriately sized power cord (not supplied)
as noted in the following table. Route the cord
through the access hole (C, Figure 14).
• Use the selector switch (D, Figure 14) located
between the inlets to select either the 5-15P or
L5-20P inlet. Make sure that the circuit breaker (E or
F) for that power inlet is in the 'ON' position.
Chained:
• For chained operation, two NLGR-Series Chain units
can be powered by a single power source. The first
unit must use the NEMA L5-20P inlet (B, Figure
14) to connect to the power source. The second unit
must use the NEMA 5-15P inlet (A) to connect to the
first unit's 5-15R outlet (G).
• Use an appropriately sized power cord (not supplied)
for both units as noted in the following table. Route
the cord through the access hole (C, Figure 14).
• The inlet selector switch (D, Figure 14) must be
switched to the L5-20P inlet (B) on the first unit and
the 5-15P inlet (A) on the second unit. Make sure that
the circuit breaker (E or F) for that power inlet is in
the 'ON' position.
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14
Power Cord Size Requirements
Stand-Alone Operation
Plug: 5-15P or L5-20P
Cord Length
0-100 ft
101-150 ft
151-250
Chained Operation
First Unit (connected to power source)
Plug: L5-20P
Cord Length
0-50 ft
51-100 ft
Second Unit (powered by first unit)
Plug: 5-15P
Cord Length
0-100 ft
101-150 ft
151-250 ft
Light Tower Operation
Adjusting the Lights
Adjusting The Light Fixtures
Note: The light fixtures must be adjusted before raising the
light tower.
1. Adjust each fixture to the desired position. To adjust left
and right, move the fixture yoke (A, Figure 15). To adjust
up and down, loosen the locking knob (B), adjust the
fixture, then tighten the locking knob.
2. When lighting operations are complete, adjust the light
fixtures to the transport position, with the fixtures facing
straight back toward the rear of the light tower trailer. See
Transporting the Light Tower Trailer.
Cord Size
16/3
12/3
10/3
Cord Size
12/3
10/3
Cord Size
16/3
12/3
10/3
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