SECTION I
INTRODUCTION
Page
Paragraph
1-1 General ....................................................................................................................................................................................... 2
Paragraph
1-2 Safety Standards ....................................................................................................................................................................... 2
Paragraph
1-3 Hoist Construction and Features .............................................................................................................................................. 2
Paragraph
1-4 Basic Hoist Data ................................................................................................................................................................. 2 & 3
Paragraph
1-5 Application Information .............................................................................................................................................................. 3
Paragraph
1-6 Warranty ..................................................................................................................................................................................... 3
SECTION II
INSTALLATION
Paragraph
2-1 Safety Notes .............................................................................................................................................................................. 3
Paragraph
2-2 Trolley Installation ...................................................................................................................................................................... 3
Paragraph
2-3 Power Supply Connection .................................................................................................................................................. 3 & 4
Paragraph
2-4 Vent Plug .................................................................................................................................................................................... 4
Paragraph
2-5 Wire Rope Lubrication ............................................................................................................................................................... 4
Paragraph
2-6 Testing. ....................................................................................................................................................................................... 4
SECTION III
OPERATION
Paragraph
3-1 General ....................................................................................................................................................................................... 8
Paragraph
3-2 Safety Notes .............................................................................................................................................................................. 8
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3-3 Handling The Load .................................................................................................................................................................... 8
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3-4 Overload Limiting Protection .................................................................................................................................................... 8
SECTION IV
INSPECTION
Paragraph
4-1 General ....................................................................................................................................................................................... 9
Paragraph
4-2 Frequent Inspection ................................................................................................................................................................... 9
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4-3 Periodic Inspection .................................................................................................................................................................... 9
Paragraph
4-4 Load Brake Function Check ................................................................................................................................................... 11
Paragraph
4-5 Wire Rope Inspection .............................................................................................................................................................. 12
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5-6 Hook Throat Opening .............................................................................................................................................................. 12
SECTION V
MAINTENANCE AND REPORT
Paragraph
5-1 General ..................................................................................................................................................................................... 13
Paragraph
5-2 Limit Switch Adjustment .......................................................................................................................................................... 13
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5-3 Motor Brake Adjustment ......................................................................................................................................................... 13
Paragraph
5-4 Wire Rope Replacement ......................................................................................................................................................... 14
Paragraph
5-5 Lubrication ................................................................................................................................................................................ 15
SECTION VI
TROUBLESHOOTING .......................................................................................................................................................... 17 & 18
SECTION VII
WIRING
Paragraph
7-1 Voltage Conversion .................................................................................................................................................................. 19
Paragraph
7-2 thru 7-9 Wiring Diagrams ........................................................................................................................................... 20 thru 27
SECTION VIII ILLUSTRATED PARTS LIST
Paragraph
8-1 General ..................................................................................................................................................................................... 28
Paragraph
8-2 How To Use The Parts List ..................................................................................................................................................... 28
Paragraph
8-3 How To Order Replacement Parts .......................................................................................................................................... 28
Table of Contents
1-1. General Information
This manual provides information for the safe operation and
maintenance of Yale LEW-1 Series Hoists. All persons operating
or maintaining these hoists should be familiar with the
information contained herein. Adherence to the precautions,
procedures, and maintenance practices described should
ensure long reliable operation. Suggestions for improvements
to this manual are solicited.
1-2. Safety Standards
All persons concerned with the installation, operation, inspection
and maintenance of these hoists are urged to read American
National Standard (ANSI) B30.16. That Standard contains
valuable guidelines concerning practices designed to minimize
hazards associated with the use of overhead hoisting
equipment. ANSI B30.16 also contains detailed procedures for
establishing hoist inspection and maintenance programs and
can be of significant assistance in maintaining compliance with
OSHA regulations.
1-3. Hoist Construction and Features
This hoist has a steel drum and center frame for strength in
the load-bearing areas. Strong, lightweight aluminum alloy
castings provide a compact, protective enclosure for the
mechanical and electrical components.
Heat-treated alloy steel gearing operates in an oil bath to
provide the most reliable lubrication and effective heat
dissipation. LEW-1 Series Hoists incorporate the following
features:
a. Overload limiting clutch.
b. Completely independent mechanical and electrical brakes.
c. Adjustable limit switches.
d. Tough, nylon, weatherproof pushbutton stations.
e. Steel strain cable inside pushbutton cord.
f. Transformer isolated, low-voltage pushbutton controls.
g. Quick voltage conversion on dual-voltage units.
1-4. Basic Hoist Data
The basic hoist models covered by this manual are listed in
Table 1-1.
For more information contact: Sievert Crane and Hoist, (708) 771-1600, [email protected], www.sievertcrane.com
