7804 International Standard (TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKAYHAPOAHAH OPrAHM3ALWR HO CTAHAAPTW3ALWMORGANISATION INTE RNATIONALE DE NORMALISATION Commercial road vehicles -- Side openings for truck power take-offs Vehicules routiers utilitaires -- Fenetre laterale pour prise de puissance sur camion First edition - 1985-11-01 UDC 629.11.013 : 629.114.4 Ref. No. 1SO 7804-1985 (E) ISO 7804-1985 (E) Descriptors : road vehicles, commercial road vehicles, power take-off, openings, classification, designation, dimensions. Price based on 4 pages CopyrightinternationalOrganizationfor Standardization permitted without license from IHS Not for Resale Foreword ISso (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. Each 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, govern- mental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 7804 was prepared by Technical Committee ISO/TC 22, Road vehicles. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated.. International Organization for Standardization, 1985 ? Printed in Switzerland permitted without license from IHS Not for Resale ISO 7804-1985 (E) INTERNATIONAL STANDARD Commercial road vehicles - Side openings for truck power take-offs 3.2 Type R 1 Scope and field of application This International Standard lays down the dimensions of side Type R shalt have one of the following gear depths : openings for truck power take-offs. These specifications are applicable for all general installations of power take-offs on the Type R1 : 20 ± 10 mm transmission gear box of trucks and tractors where the size of the transmission permits. Type R2 : 70 ± 10 mm Type R1 shall comply with the requirements of figure 1. Type R2 shall comply with the additional requirements of 2 Definition figure 2. gear depth : Distance from transmission face to pitch line of 3.3Type H power take-off drive gear. Type H shall have one of the following gear depths : Type H1 : 14 ± 10 mm Specifications 3 Type H2 : 64 ± 10 mm 3.1 Types Types H1 and H2 shall comply with the requirements of figure 3. This International Standard defines two types of side opening : Type R : regular duty type, 6 bolts M10 4 Designation Type H : heavy duty type, 8 boits M12 Example for the designation of a 6 bolt M10 side opening (type R) with gear depth 20 ± 10 mm (code 1) : subdivided accordingly. PTO opening ISO 7804-R1 Copyright International Organization for Standardization Not for Resale