Puller

provided the pulling capacity is not exceeded. For

high pulling capacities and locations where rails

are not on level grade, the drum type puller should

be used. Designer shall detail required footings

and foundations based on the selected puller and

soil conditions at each plant site.

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NOTE: Choose this paragraph and subparagraphs or

the paragraph entitled "Capstan Car Puller," and its

subparagraphs above.

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[Single drum reversing] [Double drum] type designed with a capacity of not

less than [_____] kg pounds of running rope pull. Starting pull capacity

shall be not less than twice the running pull capacity. Provide assembly

on one-piece heavy steel base with weatherproof motor and gear reducers

suitable for exterior location.

2.9.4.1

Puller

Unit shall consist of a [_____] mm inch pitch diameter by [_____] mm inch

face, spirally grooved for [_____] mm inch diameter wire rope with sealed

anti-friction bearings, alloy steel ring mounted spur gear and SAE 1045

steel shaft. Provide an SAE 1045 steel countershaft with anti-friction

pillow blocks and heat-treated alloy steel spur pinion roller chain drive

with steel sprockets and enclosed guard. Speed shall be a minimum of

[_____] m/sec fpm.

a.

Electric Motor: [Totally enclosed], [fan cooled], high starting

torque, reversing type, [_____] volt, [_____] phase, 60 Hz, not

less than [_____] kW hp, as specified in paragraph entitled

"Motors and Drives." Provide clutch for engaging and disengaging

power to drum.

b.

Reduction Gears: AGMA Class I sized for the motor power with

motor base and coupling. Motor shall include motor mounted disc

brake in dust and watertight enclosure. Provide rope overwind

switch assembly and rotary type limit assembly.

2.9.4.2

Accessories

a.

Rope Sheaves: Provide four stationary type, 762 mm 30 inch pitch

diameter single sheaves and one 762 mm 30 inch takeup sheave

assembly. Sheave shall be cast steel, grooved for [_____] mm inch

diameter rope and shall be oriented horizontally and mounted in a

welded steel frame with self-lubricating bronze bushings. Provide

removable steel rope guards over sheaves.

b.

Wire Rope: Not less than [_____] mm inch in diameter with a

breaking strength of not less than [_____] kg pounds. Rope shall

consist of six 19 wire strands of improved plow steel rope with

hemp center.

c.

Safety Warning System: Provide a safety warning system, including

an audible horn and three flashing lights to indicate cars in

motion. System shall activate 30 seconds before puller motor is

energized and shall not deactivate until puller motor is

SECTION 15501N

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