Federal Signal Commander 371-120 Manuel D'installation Et D'entretien page 11

1. Disassemble the light (Figure 3 on page 12):
a) Remove dome assembly by grasping the die-cast ring
attached to the dome and turning it counter-clockwise.
b) Remove three #10 hex head screws that secure motor
mounting base to housing.
c) Remove motor mounting base.
d) If desired, remove the factory supplied leads from the
terminal block.
2. If you are using conduit side-entries, attach a Myers
STTTB-2 or a T&B
with a 3/4-inch NPT close nipple (both user-supplied) to
the housing and tighten the hub securely. When side entries
are used, the bottom 1-inch NPT conduit entry must be
plugged with a threaded plug (user-supplied). (See Table 3
"Accessories" on page 16).
3. Route the supply wires (10 AWG to 16 AWG) into the light
housing, taking care to keep wires clear of the motor fan.
4. Strip a maximum of 0.28 in (7 mm) of insulation from the
ends of the power leads. Connect the wires to the terminal
block by inserting the stripped ends of the wires into the
connectors as far as they can travel.
5. Tighten the clamping screw. The maximum tightening
torque is 7.0 in-lb (0.8 N•m).
IMPORTANT: Proper grounding of the light requires
two connections to a solid earth ground.
6. See Figure 3 on page 12. Connect the earth ground to the
terminal block and the green ground screw located in light
housing.
7. Reassemble the light and test it for proper operation.
Installation and Maintenance Instructions
®
H075TBH 3/4-inch NPT conduit hub
Models 371-120 and 371L-120
®
11