OPERATION, SERVICE AND PARTS MANUAL - SINGLE AND DOUBLE GIRDER TOP RUNNING BRIDGES WITH INDIVIDUAL MOTOR DRIVEN TRUCKS

Sep 4, 2026

Operation, service and parts manual for top running single and double girder bridge cranes with individual motor driven trucks. Provides guidance for installing, operating, maintaining and servicing indoor cranes, including required information when ordering replacement parts, and emphasizes proper installation, correct operating procedures, and recommended maintenance to maximize service life. Includes general specifications for rail requirements, motor and brake control via variable frequency, as well as installation checks for runway strength, rail alignment, crane fit, orientation, and electrical interconnection safety.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages20

Reading Time50 min

AccessFree to download

Foreword

General Description

Basic Construction

Installation

General

Installing Bridge Crane

Typical Connection of Bridge to Electrical Service

OPERATION, SERVICE AND PARTS MANUAL SINGLE AND DOUBLE GIRDER TOP RUNNING BRIDGES WITH INDIVIDUAL MOTOR DRIVEN TRUCKS | | | | | | --- | --- | --- | --- | June, 2009 Copyright 2009, Yale Lift-Tech, division of Columbus McKinnon Corporation Part No. 115326-19 FOREWORD This manual contains important information to help you install, operate, maintain and service your new top running single or double girder bridge crane. We recommend that you study its contents thoroughly before putting the bridge crane into use. With proper installation, application of correct operating procedures, and practicing the recommended maintenance suggestions you will be assured of the maximum service from your bridge crane. The bridge cranes described in this manual are intended for indoor service. Bridge cranes to be used for outdoor service require special considerations. IMPORTANT When ordering replacement parts be sure to include Catalog, Part and Serial Numbers of the endtrucks and or drive gearmotor along with individual part numbers of components needed as identified elsewhere in this manual. Information given in this manual is subject to change without notice. GENERAL DESCRIPTION GENERAL These top running bridge cranes are designed to operate on parallel crane runway beams with ASCE Rail from 25\# to 105\# rail or square bar. Specific rail range is wheel diameter dependant. Motors are designed for operation on three phase power supplies from 190 to 415 V-50 Hz and 200 to 575 V-60 Hz. Bridge motors and brakes are designed and intended strictly for variable frequency control operated by pushbutton pendant or radio control. Pendant may be located and suspended from an independent festoon or attached directly to the hoist and trolley. Top running single girder cranes described herein are built to 1 through 15 tonne capacities with spans to 60 feet (18.2 meter) . Top running double girder cranes described herein are built to 1 through 20 tonne with spans to 50 feet (15.2 meter) . Cranes are designed per CMAA Specifications 70 and 74 to meet Class C Moderate Duty Service classification. BASIC CONSTRUCTION The basic construction of single and double girder top running bridges consist of American StandardS, W Section or fabricated box girder(s) rigidly connected to the top and side of each endtruck. Each endtruck has a drive and trailer wheel which run on the runway rails. The wheels are double flanged, flat tread with an integral rotating axle supported by anti-friction bearings. Each endtruck is driven by a helical gearmotor and brake. This drive engages the drive wheel by a splined connection. INSTALLATION GENERAL The runways on which these cranes will operate must be sufficiently strong enough to support bridge crane, hoisting equipment and rated load. Runway rails must be level and parallel with +/ -1/8”. Rail joints must be smooth and held firmly in alignment either by bolted splice bars or by welding. Rails should be securely fastened to the runway beam. INSTALLING BRIDGE CRANE The installation of the crane on the runway shall be performed only by a qualified crane installer. For information regarding attaching, lifting and moving the loads during installation, refer to ANSI B30.2-latest edition, Chapter 2-3 Overhead and Gantry Cranes (Top Running Bridge, Single or Multiple Girder, Top Running Trolley Hoist; ANSI B30.17-latest edition, Chapter 17-3 Overhead and Gantry Cranes (Top Running Bridge, Single Girder, Underhung Hoist) and other applicable codes. | | WARNING | | --- | --- | | Before installing the crane on the runway, lock the runway conductor disconnect switch in the open (off) position. | | Prior to the start of any crane erection the building should be measured to confirm span and clearances. These measurements should be checked against the corresponding crane measurements to insure correctness of “fit”. After assuring that the crane fits the building, determine orientation of crane posi

FAQs

What should be included when ordering replacement parts for these cranes?

Include the catalog, part, and serial numbers of the endtrucks and/or drive gearmotor, along with the individual part numbers of components identified elsewhere in the manual.

What runway conditions are required before installing the bridge crane?

Runway beams must be strong enough for the crane and rated load, with rails level and parallel within ±1/8 inch, smooth and firmly aligned rail joints, and rails securely fastened to the runway beam.

What electrical safety checks must be completed during installation and wiring?

Lock the runway conductor disconnect switch in the open (off) position before any electrical connections, ensure the crane voltage/frequency/phase match runway power, and install lockable fused disconnects between building power and the crane runway conductor system as well as between the runway system and bridge controls.

Sep 4, 2026

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