ISO 5057-2022 PDF

Full title and description

Industrial trucks — Inspection and repair of fork arms in service on fork-lift trucks. This International Standard specifies methods for inspection and for repair of solid‑section fork arms used on all types of fork‑lift trucks, focusing on detecting defects (cracks, wear, deformation), acceptance criteria and suitable repair/test methods to restore serviceability where appropriate.

Abstract

ISO 5057:2022 provides concise, practical requirements and procedures for inspecting solid‑section fork arms in service and for carrying out repairs and tests after repair. It is intended to support safe continued use or to identify when replacement is required.

General information

• Status: Published (current international standard).
• Publication date: August/September 2022 (ed. 2, published 2022-08/2022-09).
• Publisher: International Organization for Standardization (ISO); available via national bodies (e.g., SIS, ANSI/DS providers).
• ICS / categories: 53.060 (Industrial trucks / material handling equipment).
• Edition / version: Edition 2 (ISO 5057:2022), replaces ISO 5057:1993.
• Number of pages: Core ISO edition: 5 pages (national publications may include national forewords/annexes and show larger page counts).

Key bibliographic details above are taken from the ISO catalogue and national publication listings.

Scope

The standard applies to solid‑section fork arms in service on all types of fork‑lift trucks. It specifies inspection points and methods (including for surface cracks, wear, deformation, fork tip height differences, locking/positioning devices and markings), criteria for acceptance or rejection, recommended repair methods and subsequent testing to verify the safety of repaired arms. It does not cover replacement component design rules or the original manufacture of forks beyond inspection/repair practice.

Key topics and requirements

• Inspection methods for solid‑section fork arms: visual checks, measurement of wear and deformation, crack detection and verification of markings and locking features.
• Acceptance and rejection criteria for common defects (wear limits at heels/tips, allowable deformation, presence of cracks that require withdrawal from service).
• Recommended repair techniques where permitted (grinding, welding, machining) and restrictions on repairable damage.
• Post‑repair testing and examination to confirm dimensional integrity and absence of critical defects before returning to service.
• Guidance to maintenance personnel on recordkeeping and identification of forks withdrawn from service or returned after repair.

These topic areas are summarized from the standard’s scope and supporting national descriptions.

Typical use and users

Primary users include forklift maintenance teams, inspection and safety officers, authorized service organizations, equipment fleet managers, and technical assessors involved in occupational safety and equipment upkeep. Manufacturers and competent repair workshops use the standard to set repair procedures and acceptance criteria; regulators and purchasers may reference it for procurement and in-service inspection policies.

Related standards

ISO 5057:2022 is part of the industrial‑trucks family of standards developed under ISO/TC 110. It replaces ISO 5057:1993 and is related to other standards on industrial trucks and safety/inspection practices (examples of related documents in the same subject area include various ISO and national standards covering industrial truck safety, testing and visibility provisions). National bodies (e.g., SIS, ANSI/DS) list associated standards for material‑handling equipment.

Keywords

industrial trucks; fork arms; fork‑lift trucks; inspection; repair; maintenance; wear limits; cracks; safety; testing; ISO 5057.

FAQ

Q: What is this standard?

A: ISO 5057:2022 is an International Standard titled "Industrial trucks — Inspection and repair of fork arms in service on fork‑lift trucks" that sets out inspection, repair and testing methods for solid‑section fork arms.

Q: What does it cover?

A: It covers inspection criteria (including surface crack detection, wear and dimensional checks), permissible repair methods and required tests after repair to determine whether fork arms may be returned safely to service. It applies specifically to solid‑section fork arms used on all types of fork‑lift trucks.

Q: Who typically uses it?

A: Maintenance teams, authorized repair workshops, safety and inspection personnel, fleet managers, manufacturers and technical assessors responsible for ensuring safe serviceability of forklift fork arms.

Q: Is it current or superseded?

A: ISO 5057:2022 (edition 2) is the current edition and replaces ISO 5057:1993. Users should reference the 2022 edition for the latest inspection and repair guidance.

Q: Is it part of a series?

A: It is part of the body of standards for industrial trucks developed under ISO/TC 110. While ISO 5057 focuses specifically on fork‑arm inspection and repair, other ISO standards address broader safety, performance and testing requirements for industrial trucks.

Q: What are the key keywords?

A: Fork arms; inspection; repair; industrial trucks; forklift; wear; cracks; testing; maintenance; ISO 5057.