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GB/T 46089.4-2026Conveyor machinery — Inspection and maintenance specifications — Part 4: Bucket elevators (English PDF)

输送机械　检查与维护规范　第4部分：斗式提升机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 30, 2026

Implementation date

February 1, 2027

Scope

GB/T 46089.4-2026 is the English-translated version of 输送机械　检查与维护规范　第4部分：斗式提升机.

GB/T 46089.4-2026 is the Chinese standard "Conveyor machinery — Inspection and maintenance specifications — Part 4: Bucket elevators". Its scope clause reads: This document specifies the basic requirements for inspection and maintenance of bucket elevators as defined in GB/T 14521 during use.

Requirements and verification methods. This document applies to bucket elevators as specified in GB/T 14521. This document does not apply to bucket elevators used in explosive environments.

Other types of bucket conveyors should refer to this document for guidance. Its clauses include terms and definitions.

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Document preview — GB/T 46089.4-2026

National Standard of the People's Republic of China

ICS: 53.040.01
Classification: J 81

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1.Scope1
2 Normative references1
3.Terms and Definitions1
4.Basic Requirements2
5.Check2
5.1 Routine Inspections2
5.3 Special Inspections3
5.4 Inspection Methods3
5.5 Inspection records and inspection reports3
6.Maintenance4
6.1 Planned Maintenance4
6.2 Unplanned maintenance4
6.3 Maintenance Result Verification4
6.4 Maintenance Log4
7.Safety precautions for inspection and maintenance4
7.1 Basic requirements for inspection and maintenance4
7.2 Special requirements for inspection5
7.3 Special maintenance requirements5
Appendix A (Normative) Routine and Periodic Inspection Items, Contents, Requirements, and Methods6
Appendix B (Informative) Inspection Report11
Appendix C (Informative) Maintenance Items, Contents, and Requirements for Bucket Elevator (Typical)12
Appendix D (Informative) Maintenance Records14
References15

1 Scope

This document specifies the basic requirements for inspection and maintenance of bucket elevators as defined in GB/T 14521 during use.

Requirements and verification methods.

This document applies to bucket elevators as specified in GB/T 14521.

This document does not apply to bucket elevators used in explosive environments. Other types of bucket conveyors should refer to this document for guidance.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies; for undated references, the latest version (including all amendments) applies.

In this document.

GB/T 5226.1 Electrical Safety of Machinery - Electrical Equipment of Machinery - Part 1.General Technical Conditions

GB/T 14521 Terminology for Continuous Handling Machinery

GB 15605 Dust Explosion Relief Standard

GB/T 44523 General Rules for Safety Signs and Hazard Illustrations for Continuous Handling Machinery

3 Terms and Definitions

The terms and definitions defined in GB/T 14521, as well as the following terms and definitions, apply to this document.

Inspection

A series of procedures performed to determine whether the bucket elevator is functioning properly.

Note. Inspections are divided into routine inspections, periodic inspections, and special inspections.

3.2 Daily inspection

Inspections of the bucket elevator before and during each work shift.

3.3 Periodic inspection

Bucket elevators in use shall be inspected according to the prescribed schedule.

3.4 Special inspection

Inspections are conducted when the bucket elevator itself or external conditions change, and before restarting it after a long period of inactivity.

3.5 Maintenance

A series of tasks performed to maintain or restore a bucket elevator to a state in which it can perform its intended functions.

Note. Maintenance is divided into planned maintenance and unplanned maintenance. Maintenance work includes upkeep and repair.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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