cooled], [non ventilated], 1,800 rpm, [_____] volt, three phase, 60 Hz, not
less than 5 1/2 kW 7 1/2 hp as specified under paragraph entitled "Motors
and Drives" in this section. Motors shall be high slip type and shall with
thermal overload protection embedded in the windings.
2.9.2.3
Controls
Provide [remote] [pendant] pushbutton station for both shaker and hoist
operation. Provide automatic controls with upper and lower screw type
limit switches to limit hook travel, slack cable limit switch to stop
lowering of hooks when car shaker has been lowered on top of car,
electrical interlock to prevent operation of car shaker motor until shaker
is lowered on car, and electrical interlock to prevent operation of hoist
motor while car shaker is running. Mount electrical equipment in NEMA 4
enclosures.
2.9.2.4
Frame [and Enclosure]
Provide frame [and enclosure] as indicated for support of hoist and shaker
unit [and for attenuation of noise].
2.9.3
Car Pullers
2.9.3.1
Capstan Car Puller
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NOTE: Choose this subparagraph or the subparagraph
entitled "Reversible Drum Type Car Puller."
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Designed with capacity of not less than 4540 kg 10,000 pounds of starting
pull and an average rope speed of approximately 0.23 m/s 45 fpm. Assembly
shall be totally enclosed, weatherproof, and suitable for exterior
installation with vertical capstan. Capstan shall be semisteel alloy
construction designed for use with marlin-covered wire rope.
a.
Accessories: Provide capstan complete with accessories, including
controls, rope, rope storage reel, car hooks, sheaves, snatch
blocks, anchors, and ratchet holdback.
b.
Rope: Capstan rope shall be not less than 25 mm one inch outside
diameter marlin clad wire rope with a breaking strength of not
less than 13,620 kg 30,000 pounds.
c.
Rope Storage Reel: Construct rope storage reel of metal, hand
operated with the drum not less than 300 mm 12 inches in diameter
and the reel faces not less than one meter 3 feet in diameter.
Drum shall have not less than [_____] mm inches face width and
store not less than [_____] meters feet of 25 mm 1 inch diameter
marlin clad wire rope.
d.
Electric Motor: [Totally enclosed], [fan cooled], high starting
torque, reversing type, [_____] volt, three phase, 60 Hz, not less
than 7 1/2 kW 10 hp as specified under paragraph entitled "Motors
and Drives" in this section.
2.9.3.2
Reversible Drum Type Car Puller
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SECTION 15502N
Page 98
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