ISO 6302:1993
(Main)Earth-moving machinery - Drain, fill and level plugs
Earth-moving machinery - Drain, fill and level plugs
Establishes the types, shapes and sizes of the parts of the plugs used in connection with the hand tools listed in ISO 4510-1 to permit easy removal and installation of plugs at the work-site. Does not set requirements, i.e. dimensions and materials, for the manufacture of plugs. Applies to the drain, fill and level plugs required on earth-moving machines for the changing of lubricants, coolants, hydraulic oils and fuels.
Engins de terrassement — Bouchons de vidange, de remplissage et de contrôle des niveaux
General Information
- Status
- Published
- Publication Date
- 22-Dec-1993
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 08-Dec-2021
- Completion Date
- 13-Dec-2025
Relations
- Effective Date
- 15-Apr-2008
Overview
ISO 6302:1993 is an international standard developed by the International Organization for Standardization (ISO) that specifies the types, shapes, and dimensions of drain, fill, and level plugs used on earth-moving machinery. These plugs are essential components involved in the maintenance and servicing of construction equipment, facilitating the removal and installation at worksites. While ISO 6302 defines plug design parameters for tool compatibility, it does not prescribe material or manufacturing requirements. This ensures plugs can be easily handled with commonly used hand tools as outlined in ISO 4510-1.
The focus of ISO 6302 is on plugs used for draining and replenishing lubricants, coolants, hydraulic fluids, and fuels-critical substances for the operation and maintenance of earth-moving machines. By standardizing plug interfaces, ISO 6302 promotes interchangeability, safety, and efficiency in field maintenance activities.
Key Topics
- Plug Types and Shapes
ISO 6302 identifies four main types of plugs-A, B, C, and D-each defined by specific designs:- Type A: Square-drive plugs without heads
- Type B: Hexagonal head plugs
- Type C: Collared plugs with square drive
- Type D: Hexagonal head plugs suited for frequent removal
- Dimensions and Compatibility
The standard specifies exact dimensions for plug parts, such as thread sizes (metric and inch-based), head widths, and driving features to match hand tools. - Thread Standards Reference
ISO 6302 leverages existing thread standards like ISO 7-1, ISO 261, ISO 724, ISO 263, and ISO 725 to ensure compatibility with commonly used pipe and bolt threads. - Use Case Recommendations
The standard also provides guidance on plug selection based on maintenance needs:- Types A and C recommended for locations prone to physical damage
- Type C preferred for easy tool engagement in tight passages
- Type D plugs designed for frequent removal and replacement
- Type B plugs suited where plug removal is minimal
- Tool Interface Standards
To facilitate plug manipulation on-site, compatibility with hand tools from ISO 4510-1 (maintenance tools for earth-moving machinery) is emphasized.
Applications
ISO 6302 plugs are widely applied to a variety of earth-moving equipment including excavators, bulldozers, loaders, and other heavy machinery used in construction, mining, and agriculture. Key applications include:
- Drainage of Lubricants and Fluids
Plugs ensure secure sealing and simple access for routine oil changes, coolant refills, and hydraulic fluid maintenance. - Fuel and Hydraulic System Servicing
Standardized plugs facilitate safe and quick replacement or adjustment of fuel and hydraulic fluids critical to machine performance. - Field Repair and Maintenance
The standard supports onsite tool compatibility, streamlining maintenance tasks and reducing downtime in remote or challenging environments. - Safety and Environmental Protection
Correct plug selection and secure fitting help prevent leaks and environmental contamination during fluid handling operations.
Related Standards
To ensure comprehensive maintenance and operational integrity, ISO 6302 works in conjunction with:
- ISO 4510-1: Specifies hand tools for maintenance and adjustment of earth-moving machinery-directly referenced for plug tool compatibility.
- ISO 7-1: Pipe threads with sealing, critical for plug thread specifications.
- ISO 261 and ISO 724: General metric thread standards used in plug design.
- ISO 263 and ISO 725: Inch-based thread standards, supporting plugs with imperial-thread configurations.
- ANSI B1.20.3 (SAE J476): Dryseal pipe threads referenced for compatibility with certain plug types.
By adhering to these standards, manufacturers and operators ensure plug interchangeability, safety compliance, and effective servicing across diverse earth-moving machinery fleets.
Keywords: ISO 6302, earth-moving machinery, drain plugs, fill plugs, level plugs, plug types, plug dimensions, hydraulic fluid plugs, lubricant plugs, ISO 4510-1 tools, construction equipment maintenance, thread standards, earth-moving equipment maintenance
ISO 6302:1993 - Earth-moving machinery -- Drain, fill and level plugs
ISO 6302:1993 - Engins de terrassement -- Bouchons de vidange, de remplissage et de contrôle des niveaux
Frequently Asked Questions
ISO 6302:1993 is a standard published by the International Organization for Standardization (ISO). Its full title is "Earth-moving machinery - Drain, fill and level plugs". This standard covers: Establishes the types, shapes and sizes of the parts of the plugs used in connection with the hand tools listed in ISO 4510-1 to permit easy removal and installation of plugs at the work-site. Does not set requirements, i.e. dimensions and materials, for the manufacture of plugs. Applies to the drain, fill and level plugs required on earth-moving machines for the changing of lubricants, coolants, hydraulic oils and fuels.
Establishes the types, shapes and sizes of the parts of the plugs used in connection with the hand tools listed in ISO 4510-1 to permit easy removal and installation of plugs at the work-site. Does not set requirements, i.e. dimensions and materials, for the manufacture of plugs. Applies to the drain, fill and level plugs required on earth-moving machines for the changing of lubricants, coolants, hydraulic oils and fuels.
ISO 6302:1993 is classified under the following ICS (International Classification for Standards) categories: 53.100 - Earth-moving machinery. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 6302:1993 has the following relationships with other standards: It is inter standard links to ISO 6302:1986. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 6302:1993 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
ISO
INTERNATIONAL
STANDARD
Third edition
1993-12-15
Earth-moving machinery - Drain, fill and
level plugs
- Bouchons de vidange, de remplissage et de
Engins de terrassemen t
con trOle des niveaux
Reference number
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 6302 was prepared by Technical Committee
lSO/TC 127, Earth-moving machinery, Subcommittee SC 3, Operation and
main tenance.
This third edition cancels and replaces the second edition
(ISO 6302:1986), of which it constitutes a technical revision.
0 ISO 1993
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1 211 Geneve 20 l Switzerland
Printed in Switzerland
INTERNATIONAL STANDARD Q ISO ISO 6302:1993(E)
- Drain, fill and level plugs
Earth-moving machinery
1 Scope
This International Standard establishes the types, shapes and sizes of the Parts of the plugs used in connection
with the hand tools listed in ISO 4510-1 to permit easy removal and installation of plugs at the work-site. lt does
not set requirements, i.e. dimensions and materials, for the manufacture of plugs.
This International Standard applies to the drain, fill and level plugs required on earth-moving machines for the
changing of Iubricants, coolants, hydraulic oils and fuels.
2 Normative references
The following Standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All Standards are subject to
revision, and Parties to agreements based on this International Standard are encouraged to investigate the possi-
_ bility of applying the most recent editions of the Standards indicated below. Members of IE6 and ISO maintain
registers of currently valid International Standards.
ISO 7-l :1982, Pipe threads where pressure-tight joints are made on the threads - Part 1: Designation, dimen-
sions and tolerantes.
ISO 261: 1973, ISO general purpose metric screw threads - General plan.
ISO 263:1973, ISO inch screw threads - General plan and selection for screws, bolts and nuts - Diameter range
0.06 to 6 in.
ISO 72411993, ISO general-purpose metric screw threads - Basic dimensions.
ISO 72511978, ISO inch screw threads - Basic dimensions.
- Part 1: Common maintenance and adjustment
ISO 451 O-1 : 1987, Earth-moving machinery - Service tools
tools.
...
NORME
ISO
INTERNATIONALE
Troisième édition
1993-12-15
Engins de terrassement - Bouchons de
vidange, de remplissage et de contrôle des
niveaux
Earth-moving machinery - Drain, fil/ and level plugs
Numéro de référence
ISO 6302: 1993(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une federation
mondiale d’organismes nationaux de normalisation (comités membres de
I’ISO). L’elaboration des Normes internationales est en général confiée aux
comites techniques de I’ISO. Chaque comité membre intéressé par une
étude a le droit de faire partie du comite technique creé à cet effet. Les
organisations internationales, gouvernementales et non gouvernemen-
tales, en liaison avec I’ISO participent également aux travaux. L’ISO colla-
bore étroitement avec la Commission électrotechnique internationale (CEI)
en ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptes par les comités techniques
sont soumis aux comites membres pour vote. Leur publication comme
Normes internationales requiert l’approbation de 75 % au moins des co-
mites membres votants.
La Norme internationale ISO 6302 a été élaboree par le comité technique
lSO/TC 127, Engins de terrassement, sous-comité SC 3, Emploi et
entre tien.
Cette troisieme édition annule et remplace la deuxième edition
(ISO 6302:1986), dont elle constitue une revision technique.
(9 ISO 1993
Droits de reproduction réserves. Sauf prescription différente, aucune partie de cette publi-
cation ne peut êrtre reproduite ni utilisée sous quelque forme que ce soit et par aucun pro-
cédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l’accord
ecrit de I’editeur.
Organisation internationale de normalisation
Case Postale 56 l CH-l 211 Geneve 20 l Suisse
Imprimé en Suisse
ii
NORME INTERNATIONALE 0 ISO
- Bouchons de vidange, de
Engins de terrassement
remplissage et de contrôle des niveaux
1 Domaine d’application
La presente Norme internationale prescrit les types et les formes et fixe les dimensions des parties de bouchons
utilisées en relation avec les outils courants indiques dans I’ISO 4510-l et facilitant la dépose et la pose des bou-
chons sur le chantier. Elle ne spécifie pas les exigences de fabrication (c’est-à-dire les dimensions et les matériaux)
des bouchons.
La présente Norme internationale est applicable aux bouchons de vidange, de remplissage et de contrôle des ni-
veaux nécessaires sur les engins de terrassement pour le remplacement des lubrifiants, liquides de refroidis-
sement, fluides hydrauliques et carburants.
2 Références normatives
Les normes suivantes contiennent des dispositions qui, par suite de la référence qui en est faite, constituent des
dispositions valables pour la présente Norme internationale. Au moment de la publication, les éditions indiquées
etaient en vigueur. Toute norme est sujette à révision et les parties prenantes des accords fondes sur la présente
Norme internationale sont invitées à rechercher la possibilité d’appliquer les éditions les plus récentes des normes
indiquées ci-apres. Les membres de la CEI et de I’ISO possédent le registre des Normes internationales en vigueur
à un moment donne.
ISO 7-l :1982, Filetages de tuyauterie pour raccordement avec étancheite dans le filet - Partie 1: Désignation,
dimensions et tolerances.
ISO 261:1973, Filetages métriques /SO pour usages généraux - Vue d’ensemble.
ISO 263:1973, Filetages /SO en inches - Vue d’ensemble et selection pour boulonnerie - Diamètres de 0,06 a
6 in.
ISO 724:1993, Filetages métriques ISO pour usages généraux - Dimensions de base.
ISO 725: 1978, Filetages ISO en inches - Dimensions de base.
l SO 451 O-1 : 1987, Engins de terrassement - Outils d’entretien et de dépannage - Partie 1: Outils courants pour
l’
...
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