of the types of UNREP equipment you will encounter.
switches, and a manually operated release lever. The
Since there are so many pieces of equipment and the
latch will automatically fall into the latch hole in the side
amount of maintenance needed to keep it functional is
of the trolley when the trolley has been pulled into the
so great, most ships have EMs dedicated to the deck
receiving head enough to push the meeting carriage into
department to devote the needed time to the equipment.
the INDEXED position.
The trolley latch release system has a blue signal
light (not shown) located on the opposite side of the
ELECTRIC FORKLIFT TRUCK
receiving head unit and a blue indicator light lusted at
the control console (fig. 5-35). The purpose of the
Electric forklift trucks are primarily used for
electrical circuit is to provide the winch operator on the
handling, transporting, and warehousing materials in
supply ship and the console operator on the receiving
confined areas where engine exhaust times cannot be
ship with a visual indication that the trolley is latched.
tolerated. Figure 5-37 shows two of the electric forklifts
When the trolley is latched the blue trolley latched
most commonly used. The larger vehicles are electric
lights are illuminated and are extinguished when the
powered, front-wheel drive, rear-wheel power-steering
trolley is released.
The trolley latch signal light circuit receives
110-volt ac power from the 440/120-volt transformer.
The 440-volt ac power to the transformer is controlled
by the power switch located on the control console.
The operator can manually control the automatic
trolley latch system. The operator does this by releasing
the latch. The latch can be released in two ways-by
energizing the trolley release solenoid from the control
console or by manually pulling the release handle on the
side of the kingpost.
Transfer Signal Holdup Light
The transfer signal holdup light circuit has an amber
signal (fig. 5-34) located on the receiving head unit. An
amber indication light is located on the control console.
The purpose of the electrical circuit is to give the winch
operator on the supply ship and the console operator on
the receiving ship a visual indication when the ships are
becoming too far off station. Whenever the receiving
head trains more than 30 degrees off station, the lights
are illuminated This light circuit also lets the console
operator signal the winch operator to temporarily y stop
operation.
The holdup transfer signal light circuit receives
120-volt ac power from the 440/120-volt transformer.
The 440-volt ac power to the transformer is controlled
by the power switch located on the control console.
SUMMARY
The UNREP system is a complicated system
consisting of many components working together to
perform an important function at sea. While the
information given above may not match all the types of
Figure 5-37.--Electric forklift trucks.
equipment found aboard your ship, it is representative
5-55
