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Standard

Air Disc Brake Actuator Test Procedure, Truck-Tractor, Bus and Trailer
2020-12-07
CURRENT
J2902_202012
This SAE recommended practice provides procedures and methods for testing service, spring applied parking and combination brake actuators for air disc brake applications. Methods and recommended samples for testing durability, function and environmental performance are listed in 1.1 and 1.2.
Standard

Advanced Driver Interface Systems for Commercial Vehicle Operations
2003-01-22
CURRENT
J2571_200301
This SAE Recommended Practice defines an architecture, including operating modes, in which an advanced driver interface system and related software exist. It also provides reference to a set of Federal Highway Administration approved guidelines for human factors characteristics of such systems and related software.
Standard

Recommended Practices for CNG Powered Medium and Heavy-Duty Trucks
2018-02-12
CURRENT
J2406_201802
This SAE Recommended Practice provides guidance for the construction, operation, and maintenance of CNG powered medium and heavy-duty trucks. The intent of this document is to cover TRUCKS (6350 kg (14 001 gvw pounds) and above) and specifically excludes passenger vehicles such as: buses, recreational vehicles, motor homes and/or passenger vehicles which may incorporate a truck chassis in their construction.
Standard

Recommended Practices for CNG Powered Medium and Heavy-Duty Trucks
2002-03-13
HISTORICAL
J2406_200203
This SAE Recommended Practice provides guidance for the construction, operation, and maintenance of CNG powered medium and heavy-duty trucks. The intent of this document is to cover TRUCKS (6350 kg (14 001 gvw pounds) and above) and specifically excludes passenger vehicles such as: buses, recreational vehicles, motor homes and/or passenger vehicles which may incorporate a truck chassis in their construction.
Standard

Air Conditioning Service Procedures for Off-Road Work Machines and Agricultural Tractors using R-134a or R-1234yf refrigerant
2016-09-12
WIP
J3126
This recommended practice provides technicians with safe and efficient techniques and general equipment recommendations for servicing Mobile Air Conditioning (MAC) systems into Off-Road Self-Propelled Work Machines as defined in SAE J1116 and Tractors and Machinery for Agriculture and Forestry as defined in ANSI/ASAE S390. Both refrigerants R 134a and R-1234yf are covered. Many service procedures are similar for both refrigerants but recovery, recycling, charging, electronic leak detection and other tools can be unique to each refrigerant.
Standard

Fuel Economy Measurement Test (Engineering Type) for Trucks and Buses
1997-12-01
CURRENT
J1376_199712
This procedure incorporates test cycles that produce relative fuel economy data relating to long haul, short haul, and local driving patterns, or any combination of these and to those components developed to improve fuel economy for these patterns. The tests conducted on a specific vehicle are to reflect that vehicle's general mode of operation. The procedure is intended to be used under controlled, warmed-up conditions on a test tract or on suitable roads. A minimum of two vehicles running simultaneously is required. Test condition recommendations are provided for undertaking this engineering test. If it is necessary to conduct a test outside of these test conditions, the purpose of the test and the variant conditions should be recorded and noted whenever the results are reported.
Standard

Openings for Six- and Eight-Bolt Truck Transmission Mounted Power Take-Offs
2017-11-03
CURRENT
J704_201711
The accompanying mounting and gear locations are applicable for all general installations of power take-off on the transmission gear box of motor trucks and tractors where the size of the transmission permits. The heavy-duty type opening can be adapted to the regular-duty type by the use of an adapter with 6.35 mm (0.25 in) flange thickness with appropriate bolt pattern and thread engagement. (See Figures 1 and 2.)
Standard

Openings for Six- and Eight-Bolt Truck Transmission Mounted Power Take-Offs
2000-09-07
HISTORICAL
J704_200009
The accompanying mounting and gear locations are applicable for all general installations of power take-off on the transmission gear box of motor trucks and tractors where the size of the transmission permits. The heavy-duty type opening can be adapted to the regular-duty type by the use of an adapter with 6.35 mm (0.25 in) flange thickness with appropriate bolt pattern and thread engagement. (See Figures 1 and 2.)
Standard

PERFORMANCE TEST FOR AIR CONDITIONED AGRICULTURAL EQUIPMENT
1980-03-01
HISTORICAL
J1006_198003
This recommended practice establishes a uniform test procedure for determining the operator environment temperature and humidity obtainable with an air conditioning system on agricultural equipment. This procedure can be used to evaluate any type of air conditioning system.
Standard

Braking Performance--Roller/Compactors
1987-09-01
CURRENT
J1136_198704
Minimum performance criteria for service braking systems, secondary stopping systems, and parking systems for all self-propelled vibratory and static roller/compactors are provided in this SAE Recommended Practice. The purpose of this document is to define minimum braking system performance for in-service machines and to provide test criteria by which machine braking system performance may be verified.
Standard

PERFORMANCE PREDICTION OF ROLL-OVER PROTECTIVE STRUCTURES (ROPS) THROUGH ANALYTICAL METHODS
1979-05-01
HISTORICAL
J1215_197905
This report discusses the use of specialized analytical procedures that can be used to predict the structural behavior of ROPS and machine frame systems subjected to testing as described in SAE Recommended Practice J1040. For practical reasons, these complex calculations require the use of computerized methods. Specific approaches that are thought to be essential to preparing accurate analytical predictions are described. The importance of an experienced ROPS analyst is reviewed. The use of analytical procedures to predict the performance of ROPS is especially desirable for ROPS designed for installation on very large off-road machines, where problems of testing are extraordinarily great, and for predicting the effects of changes to proven ROPS designs before retesting. This report also covers the use of these analytical techniques as ROPS design tools.
Standard

Development of a Frequency Weighted Portable Ride Meter
1987-01-30
CURRENT
J1225_198701
The purpose of this report is to record the activities and recommendations of the Ride Meter Task Force assigned by the chairman of the SAE Joint Seating Subcommittee to determine availability of instrumentation to measure operator ride on mobile equipment. The desired characteristics of the meter included relatively low cost, easy to operate, highly portable, and sufficiently rugged to withstand the vibration levels encountered on agricultural or construction machines. It is recognized that a ride meter type instrument with a single numerical output provides only approximate indication of ride vibration quality, but is useful for general field evaluation or overall ride comparisons. A narrow band analysis of the vibration frequency spectrum is recommended for more accurate and complete results.
Standard

DEVELOPMENT OF A FREQUENCY WEIGHTED PORTABLE RIDE METER
1978-06-01
HISTORICAL
J1225_197806
The task force was assigned responsibility for the following activities: 1 Formulate a recommendation for an acceptable ride meter including features, functional performance, and design specifications. 2 Conduct a survey to determine if there is a commercially available ride meter conforming to the recommendation. 3 If an acceptable ride meter is not commercially available, work with an electronics supplier to initiate a design and build a working prototype of a meter conforming to the recommendation.
Standard

Brake Performance--Rubber-Tired Earthmoving Machines
1999-05-01
CURRENT
J1473_199905
This SAE Standard applies to self-propelled, rubber-tired loaders, tractors, graders, back-hoe loaders, tractor-scrapers, excavators, and dumpers as defined in SAE J1057 SEP88. Service, secondary and parking brake systems, and retarders are included. This document specifies brake system minimum performance and test criteria to enable uniform evaluation of the brake capability of earthmoving machines as defined in the scope.
Standard

Retardation Capability of Off-Highway Dumpers and Scrapers
2000-10-03
CURRENT
J1430_200010
This SAE Standard applies to off-highway dumpers and scrapers equipped with an auxiliary retarder. 1.1 Purpose--To define test procedures for verifying that the machine will at least meet the manufacturer's published continuous retarding capability curve. To recommend a common format for reporting retardation performance.
Standard

BRAKE SYSTEM ROAD TEST CODE — TRUCK, BUS, AND COMBINATION OF VEHICLES
1971-05-01
HISTORICAL
J786A_197105
This SAE Recommended Practice establishes a uniform procedure for the level road test of the brake systems of new trucks, buses, and combination of vehicles designed for roadway use and falling in the following classifications: Light trucks and buses: 6001-10,000 lb gvw Truck and bus: Over 10,000 lb gvw Combination of vehicles (towing vehicle over 10,000 lb gvw)
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