A N A M E R I C A N N A T I O N A L S T A N D A R D

ASME HST-4−2016[Revision of ASME HST-4–1999 (R2010)]

Performance Standard for Overhead Electric Wire Rope Hoists

ASME HST-4–2016[Revision of ASME HST-4–1999 (R2010)]

Performance Standardfor Overhead ElectricWire Rope Hoists

A N A M E R I C A N N A T I O N A L S T A N D A R D

Two Park Avenue • New York, NY • 10016 USA

Date of Issuance: February 19, 2016

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CONTENTS

Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ivCommittee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vCorrespondence With the HST Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Chapter 4-0 Scope, Definitions, References, and Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 4-0.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 4-0.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 4-0.3 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Section 4-0.4 Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chapter 4-1 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Section 4-1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Section 4-1.2 Hoist Duty Service Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Section 4-1.3 Application Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Section 4-1.4 Specification of Lift, Headroom, and Reach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Section 4-1.5 Speeds: Hoist and Trolley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Section 4-1.6 Types of Trolleys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 4-2 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Section 4-2.1 Rope Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Section 4-2.2 Drum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Section 4-2.3 Reeving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Section 4-2.4 Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Section 4-2.5 Overload Limiting Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 4-3 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Section 4-3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Section 4-3.2 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Section 4-3.3 Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Section 4-3.4 Control Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Section 4-3.5 Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Section 4-3.6 Current Conductor Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 4-4 Inquiry Data Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Section 4-4.1 Typical Electric Wire Rope Hoist and Trolley Inquiry Data Form . . . . . . . . . . 13

Figures4-0.2-1 Hoist Mounting Headroom, Lift, and Reach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-0.2-2 Single and Double Reeving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Tables4-1.2.3-1 Hoist Duty Service Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74-1.5-1 Typical Hoist and Motorized Trolley Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94-3.2-1 Typical Rated Motor Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Form4-4.1-1 Typical Electric Wire Rope Hoist and Trolley Inquiry Data Form . . . . . . . . . . 14

Nonmandatory AppendicesA Performance Requirements for Electric Wire Rope Hoists Used in Marine

and Other Applications as Required by the U.S. Department of Defense(DOD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B Examples of Detailed Application Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

iii