HOLOPHANE
High Mast
Lowering Devices
SECTION II
Figure 21
Before wiring twistlock plug to the power cord, install the
black rubber protective cover as follows;
1. Compare cord diameter with ring diameter on
end of cover. If cord diameter is greater than ring
diameters, cut off flush with next larger diameter
ring.
NOTE: Under no circumstances cut off more than
three rings.
2. After cutting off ring, if required, slip power cord
through cover and wire twistlock plug.
3. Slide rubber cover down over plug.
CUT HERE
GR1147
WARNING
Do not break and make the circuit with the plug and
connector. Use the circuit breaker. Failure to use the
circuit breaker may result in electrical shock.
2.7.2
Uncoil the 20 ft. control cord. Rotate the power
unit drum switch to the “REV” position to spool enough
cable from the winch to allow attachment of the winch
cable hook to the clevis.
2.7.3
Make sure the stringing hook is securely holding
the weight of the ring. Disconnect the safety cable and
attach the winch cable to the U-shaped bail of the
clevis. Allow the safety cable hook to hang outside the
pole through the top handhole when not in use.
WARNING
Proceed carefully with the following steps. The mount-
ing ring is now supported by the stringing hook. Do not
unhook the stringing hook until the power unit is firmly
installed in the pole.
Do not leave this too long since it can become entangled
with the winch cable. Reference the wiring diagram
inserted in this manual and install and wire the plug.
Install rubber plug cover if required. For details of rubber
cover installation, see Figure 21. The rubber plug cover
is supplied for 30 amp plugs only.
2.7 Lower Ring to Ground for Luminaire Installa-
tion
2.7.1
For voltages other than 120 volts, connect the
secondary of the transformer to the portable drive
motor. Plug the cord from the primary of the trans-
former into the circuit breaker cord. Turn on the circuit
breaker to energize the power unit. With 120 volt
systems there is no transformer and the portable drive
motor cord plugs directly into the circuit breaker cord.
Supports for Highway Signs,Luminaires and Traffic
Signals - Fifth Edition 2009 Section 5.17.5.2 anchor bolt
pretensioning .
2.6.3
Reference the wiring diagram inserted at the end
of this section and make the appropriate connections to
the circuit breaker. Install the circuit breaker cover.
2.6.4
Be sure the power cord is hanging freely through
the hole in the clevis. Position the cord clamp approxi-
mately two inches below the clevis plate and tighten the
cord clamp screws securely. (See Figure 20)
2.6.5
Cut off the power cord 8 to 10 in. below the clamp.
12
CLEVIS
CORD
PLUG
2” TO 3”
8” TO 10”
Figure 20
GR1146
POWER
