REPUBLIC OF THE PHILIPPINES EDICT OF GOVERNMENT In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. PNS/PAES 136 (2005) (English): Agricultural Machinery -- Agricultural Trailer -- Specifications PHILIPPINE NATIONAL STANDARD PNS/PAES 136:2005 (PAES published 2004) ICS 65.060 Agricultural Machinery - Agricultural Trailer - Specifications ---,- ~ BUREAU OF PRODUCT STANDARDS DEPARTMENT OF TRADE & INDUSTRY FEB l I 1006 PHI liP PIN E S PHILIPPINE NATIONAL STANDARD PNS/PAES 136:2005 (PAES published 2004) National Foreword This Philippine Agricultural Engineering Standards PAES 136:2004, Agricultural Machinery - Agricultural Trailer - Specifications was approved for adoption as a Philippine National Standard by the Bureau of Product Standards upon the recommendation of the Agricultural Machinery Testing and Evaluation Center. PHILIPPINE AGRICULTURAL ENGINEERING STANDARD P AES 136:2004 Agricultural Machinery - Agricultural Trailer - Specifications Foreword The fonnulation of this National Standard was initiated by the Agricultural Machinery Testing and Evaluation Center (AMTEC) with support from the Department of Agriculture (DA). This standard has been technically prepared in accordance with BPS Directives Part 3: 2003 - Rules for the Structure and Drafting of International Standards. The word "shall" is used to indicate mandatory requirements to confonn to the standard. The word "should" is used to indicate that among several possibilities one is recommended as particularly suitable without mentioning or excluding others. In the preparation of this standard, the following documents/publications were considered: CIGR Handbook of Agricultural Engineering. Plant Production Engineering. Volutne III. Published by the Anlerican Society of Agricultural Engineers (ASAE). USA. 1999. pp 463- 465. Indian Standard (IS) 8213: 1976 - Specification for Agricultural Trailer International Organization for Standardization (ISO/FDIS 17900:2001) Agricultural Trailer Balanced and semi-mounted trailers - Detennination of payload, vetiical static load and axle load. Korean Standard (KS) B 7123: 1977 - Trailers for Power Tiller Republic Act No. 7394 otherwise known as "The Consumer Act of the Philippines" enacted on July 22, 1991. A-75 PHILIPPINE AGRICULTURAL ENGINEERING STANDARD PAES 136:2004 Agricultural Machinery - Agricultural Trailer - Specifications 1 Scope This standard specifies the construction and other requirements for agricultural trailer fitted with pneumatic tires and towed by an agricultural tractor at the traveling speed not exceeding 30 kph. This standard is applicable to trailers with up to 10 metric tons capacity. 2 References The following normative documents contain provisions, which through reference in this text, constitute provisions of this National Standard: ISO 4251-1: 1994, Tyres (ply rating marked series) and rims for agricultural tractors and lnachines - Part 1: Tyre designation and dimensions ISO 4251-2: 1994, Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 2: Tyre loading ratings ISO 4251-3: 1994, Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 3: Rims PAES 102:2000, Agricultural Machinery - Operator's Manual- Content and Presentation PAES 103:2000, Agricultural Machinery - Method of Sampling PAES 107:2000, Agricultural Machiilery - Hitch for Walking-Type Agricultural Tractor - Specifications PAES 118:2001, Agricultural Machinery - Four-Wheel Tractor - Specifications PAES 311 :2001, Engineering Materials - Bolts and Nuts for Agricultural Machines - Specifications and Applications PAES 312 :200 1, Engineering Materials - Rivets for Agricultural Machines - Specifications and Applications P AES 313 :200 1, Engineering Materials - Screws for Agricultural Machines - Specifications and Applications P AES 3 14: 2001, Engineering Materials - Washers for Agricultural Machines - Specifications and Applications PAES 315:2001, Engineering Materials - Pins for Agricultural Machines - Specifications and Applications A-76 PAES 136: 2004 3 Definitions F or the purpose of this standard, the following definitions shall apply: 3.1 agricultural trailer trailer designed to carry load for agricultural purposes without power of its own 3.1.1 balanced trailer agricultural trailer whose total load is supported by at least two axles with four or lTIOre wheels when detached from the towing tractor (see Figure 1) 3.1.2 semi-trailer agricultural trailer with one axle and two wheels which, while in use, part of its load is transfened to the towing tractor and the rest of the load is canied on its axle (see Figure 2) 3.2 axle load total static load supported by the wheels on the respective axle 3.3 gross load gross weight sum of payload and unladen mass of the trailer expressed in Inetric tons 3.4 ground clearance vertical distance between the ground and the lowest point of the trailer NOTE In Ineasuring ground clearance, the trailer shall be loaded to its payload and the tires shall be inflated at the recommende.d pressure. 3.5 over-run brake brake actuated by a cOlnpressive force in the hitch between a trailer and the towing tractor used to decelerate a lnoving trailer 3.6 parking brake brake actuated by a pedal or lever to keep the trailer in stationary or parked position A-77 PAES 136: 2004 3.7 payload net weight unifonnly distributed Inaxilnuln safe load whkh can be transported by the trailer expressed in tons 3.8 service brake brake actuated by a pedal or lever to decelerate and stop a moving trailer 3.9 tow eye hitch point of the trailer's pullbar to be attached to the towing tractor 3.10 unladen mass tare weight mass of a trailer with all its usual fittings but without any load 3.11 wheel base horizontal distance between foretnost and rearmost axles or wheels measured at the center of the ground contact 3.12 wheel tread wheel track distance between the outermost wheels at the Salne axle measured at the center of ground contact A-78 P AES 136: 2004 4 Classification 4.1 Balanced Trailer r--_________B_ ____________- t-_._ _. _ ___. . ~. ___. . _.. ... _ ..... -.... -. _----... ---~f::l-E-~~I?~?-E--_---_l ----- ) ~--TT--; (--:T~~-; r f-- I I I I II I I I I II I I I I II I I I I II I I I I II A WHEEL TREAD I I I Ili--It--------~ I I I I-li-I+----------J I I I II j j I I I II I I I II I I II : : /~ ..LJ.::"L_ ______ ------4~~~-=-==\=====/=====================~\~==~; a. TOPVIEW ,-----.-._------.---.---.------ SIDE BOARD -------- PLATFORM E F b. SIDE VIEW Figure 1 - Balanced Trailer for Four-Wheel Tractor A-79 PAES 136: 2004 4.2 Semi-Trailer ( \ . \ I --T~-- I I I I I I I I I I I I I I I I I I I I __ -.l~ __ ( \ \ I a. TOPVIEW .. - ------.---- SIDE BOARD ,------ PLATFORM b. SIDE VIEW Figure 2 - Semi -Trailer for Four-Wheel Tractor A-80