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SECTION I – GENERAL DESCRIPTION
1-1. GENERAL. Yale “Global King” electric hoists
are wire rope and drum type hoists that are
manufactured with an integral trolley. These hoists
are all low headroom models with the drum and
upper block (or dead-end anchor depending on the
reeving type) on opposite sides of the beam
suspending the trolley. There are two basic frame
sizes each with two standard lifts: the “B” Frame
handles capacities up to 5 tonne; and the “C” Frame
handles capacities up to 10 tonne. The “B” Frame
has an integral trolley with two different flange width
ranges available: 4-5/8” through 14” or 14-1/8”
through 20” wide with a maximum flange thickness
of 1-3/4”. The “C” Frame integral trolley has a flange
range of 4 5/8” through 20” with a maximum flange
thickness of 2”. The hoist motor is 2-speed with a 6:1
ratio between high and low speeds as standard. The
Motor Driven trolley has two available speeds with 1-
speed, 2-speed, or Variable Frequency control.
Throughout this manual you will see references to
the “B” or “C” frame hoists. If you are unsure about
which frame size you have, see Section IV,
Paragraph 4-2 for a simple gearcase measurement
to easily determine the size of your hoist.
1-2. BASIC CONSTRUCTION. Yale “Global King”
hoists consist of a rugged steel frame which houses
a lifting drum and serves as the suspension for
carrying the entire hoist load. An aluminum
gearcase, attached to one end of the drum frame,
houses a triple-reduction gear train. The first two
reductions are helical with the third being spur.
Attached to the gearcase is a 2-speed hoisting
motor with a 6:1 ratio between the high and low
speeds. A 200% torque DC motor brake is attached
to the motor. A single NEMA 4/12 control enclosure
contains both the hoist and trolley electrical system
controls. Hoisting cable and a covered lower block
assembly are used for lifting loads. A rotary geared
limit switch is used to limit travel both up and down.
A secondary block operated limit switch is used to
limit the travel of the lower block when raising. A
push button control station (purchased separately)
for operating the hoist is suspended on a wire strain
cable attached to the hoist.
SECTION II – INSTALLATION
WARNING
Only qualified personnel properly
supervised shall mount the hoist and
trolley on the monorail and perform final
pre-operation inspection.
2-1. GENERAL. Yale “Global King” electric hoists
are lubricated and tested before being shipped from
the factory. To place a hoist in service, adjust
appropriately for the beam flange width (Paragraph
2-2), connect to electrical service (Paragraph 2-3)
and perform pre-operation tests and checks
(Paragraph 2-4).
WARNING
Working in or near exposed energized
electrical equipment presents the danger
of electric shock.
TO AVOID INJURY:
DISCONNECT POWER AND IMPLEMENT
LOCKOUT/TAGOUT PROCEDURE BEFORE
REMOVING COVER OR SERVICING THIS
EQUIPMENT.
2-2. SUSPENDING HOIST.
FIGURE 2-1. Trolley Wheel Spacing.
a) OPEN-END BEAM: If the trolley can be
installed directly from the end of the
supporting beam, adjust the spacing
between the trolley wheel flanges to be
3/16”-1/4” greater than the exact width of the
beam flange (See Figure 2-1). Before
adjusting the width of the trolley frame be
sure to loosen the clamp collar nearest the
traverse drive on the hex traverse drive
shaft. Also, the electrical conduit/cable must
not be constrained when attempting to
adjust the trolley sides in or out.
NOTICE
Loosen all electrical cable or conduit
attached to the frame and alignment bars
before adjusting trolley width. Ensure
that the electrical cable is not stretched,
pinched, twisted or otherwise damaged
when adjusting trolley width.