T E C H N I C A L D E S C R I P T I O N

T E C H N I C A L D E S C R I P T I O N

TELESCOPIC RAILWAY CRANE

GOTTWALD

GS 140.27 T

GENERAL DESCRIPTION

Type : Railway Crane GS 140.27 T

Application : Track laying and maintenance

Bridge construction

General lifting application

Manufacturer : MANNESMANN DEMATIC GOTTWALD

Loading gauge : AAR

Crane height : 13’ 8 ½"

Total length : 42‘

Tail radius : 20‘

Gauge : 56.5"

Axle load in transport condition : approx. 22 t

Total weight : approx. 170 t

Curve radius : min 300’ or according to specification

Super-elevation : max 6"

Outreach beyond coupler : max. 61’

Propping base : 10‘ - 19’

No. of bogies : 2

No. of wheel sets : 4 axles per bogie

Wheel diameter : 28 3/4"

Wheel profile : according to AAR specification

Lifting height (boom in highest position) : approx. 55’ at 65‘ radius

Max. lifting capacity : 140 t

SPEEDS:

Lifting gear : 0 to 12‘/min

Slewing gear : 0 to 1 rpm

Boom angle 0° to 45° : 120 sec

Telescoping : 180 sec

Traveling speed,

self-propelled : 25 mph

in train order : 75 mph

rigged for crane operation : 7.5 mph

DIESEL ENGINE

Manufacturer : CUMMINS

Type : N14-C360 or equivalent

No. of cylinders : 6

Power : approx. 269 kW (360.7 HP) at 1800 rpm

Cooling : water-cooled

UNDERCARRIAGE Undercarriage with 2 bogies with 4 axles each carrying a rigid welded frame designed to withstand the shocks arising during the transport and the operation of the crane. Walkways have an anti-sliding surface.

OUTRIGGERS The crane has swan-neck type outriggers (patented) that will allow swinging the outriggers over station platforms. The outrigger pads remain on the cylinders during transport, which reduces rigging time. Single leg propping allows maintaining lifting capacities over a wide working range

TRACTION GEAR Two axles per bogie are driven by a hydraulic motor with a reduction gear. The pinion is running in oil and thus self-lubricating.

Once this position is reached, the traveling brake is automatically activated. Brakes can also be activated by a foot pedal for immediate effect.

When self-propelled, the speed can be steplessly adjusted via the hydraulic motors.

TRANSPORT IN

TRAIN ORDER For transport in train order, the travel gear of the crane has to be disengaged. This is done by air. Furthermore, the axle blocking has to be disengaged and part of the counterweight is laid down to distribute the load evenly on the axles.

During transport the boom remains in horizontal position and all the telescopic elements are fully retracted. The superstructure is mechanically locked to avoid an accidental slewing during transport.

AXLE BLOCKING When the crane is working on its own wheels, the axles have to be blocked. The blocking system consists of 4 separate circuits to guarantee an even distribution of the load on the wheels in all working positions. The circuits are operated by a lever at the side of the undercarriage.

BRAKE SYSTEM The undercarriage is equipped with a disk brake system with one disk on each wheel. In train order braking is effected via a brake valve. When uncoupling the crane, the brake valve is automatically switched to the corresponding position. The same disk brakes are used in train order and in self-propelled mode.

The hand brake acts on all axles via spring activated brake operated by hand lever.

The air circuit is equipped with an automatic air dryer.

SUPERSTRUCTURE The superstructure is connected to the undercarriage by a bearing slewing ring. 360° slewing is possible. The welded construction of rigid design carries the drive unit, the control unit, the boom and the cabin. At the rear the counterweights are attached on an arm. One section of the counterweight can be placed on the undercarriage for axle load equalizing during transport.

The counterweight arm is arranged in a way that it can be slewed independent of the slewing direction of the superstructure. In work areas with limited space this allows to work up to 30° to the side

with the counterweight only 6’ 7" from the center of track

without reducing lifting capacity

without infringement of the adjacent track or hitting any right-of-way structures.

This exclusive feature is protected by United States patent no. 5,518,128.

DRIVE UNIT The diesel engine, located at one side of the superstructure, drives the hydraulic motors via a pump distribution gear. Furthermore, the engine drives a 24 V D.C. alternator for the electrical power supply of the crane and a compressor for the air brake. The engine has a dry type air filter. The drive unit is located in a separate compartment.

HOIST GEAR Behind the boom in the rear section of the superstructure, the hoist gear is arranged with hydraulic motor, planetary gear and multi-disc brake. The brake is operated for lifting or lowering by the corresponding lever in the cabin.

SLEWING GEAR The slewing gear consists of the hydraulic motor and a monobloc gear. The pinion on the vertical drive shaft matches with the toothed slewing ring.

The slewing speed is steplessly adjustable from 0 to maximum in both directions. When the slewing mechanism is switched off, the brake sets in automatically.

BOOM The boom consists of one base section and two telescopic elements. Boom length variation is made by hydraulic cylinders inside the boom, which allow telescoping even under load.

BOOM LUFFING The boom angle is changed by means of double acting cylinders between the platform of the superstructure and the boom. The boom is thus firmly held in its corresponding position.

SHEAVES In the boom head, sheaves are running in maintenance free bearings.

CABIN The cabin, situated at one side of the superstructure; is fitted with safety glass. All control levers for operation of the crane functions are grouped in the cabin, which is largely insulated against heat and noise. All the instruments and controls are conveniently arranged so that access from the adjustable seat is easy.

Furthermore, the cabin has: lights

horn

heating

fan

air conditioner

electrical wiper and washer

oil and air pressure gauges

HOISTING

ACCESSORIES A hook block with a ramshorn hook is fitted to lift 140 t.

LIGHTING: hand lamp with cable

drop light on the cabin

white and red front and rear lights

machinery house lighting

SECURITY

EQUIPMENT

SAFELOAD

INDICATOR The safe-load indicator corresponds to the existing regulations for the prevention of accidents and stops all motions of the crane in an overload situation. Lowering of the load remains possible.

Limit switch for lifting with switch at the boom head for highest and at the cable drum for lowest position

Limit switch for boom angle variation for work under the catenary. The corresponding valve is protected by a key.

OTHER SAFETY

ELEMENTS Protection against towing in train order when the traction motors are engaged and the axles blocked.

Protection of the hydraulic circuit by non-return valves and load limiting valves.

Grounding of the crane.

PAINTING All supporting parts are sandblasted. A primer and top coats are applied according to customer‘s specification.

OPTIONS

Lifting beam Available for lifting and handling of track panels and bridge sections dimensions according to requirements. Size and capacity according to crane design.

Emergency Control

(in case of main

diesel failure) Hydr. emergency control with integrated emergency power unit driven by an auxiliary Diesel engine for all motions with exception of travel gear.

Winch For stabilizing loads during pick and carry operation or for towing, a 5 t winch

can be installed on the superstructure.

Tool box

Initial set of

Spares

GPS for detection

of crane position

Note The crane will be coupled to an idler car which carries tools, lifting gear etc. and protects the boom. This idler car is a standard flat bed vehicle, where a refurbished one should readily be available in the user’s country.

Technical modifications reserved

(Figures have been converted from metric system. Crane will be manufactured to metric system only. No data comparable without known basis of calculation)

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