This standard specifies the static test method for the ability of the engine of an agricultural and forestry tractor to maintain normal operation on a slope. JB/T 6000-1992 Static test method for the adaptability of agricultural and forestry tractors to work on slopes JB/T6000-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6000—92
Agricultural and forestry tractors adaptability to slope work
Static test method
Published on May 28, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Agricultural and forestry tractors adaptability to slope work
Static test method
Subject content and scope of application
JB/T6000---92
This standard specifies the static test method for the ability of the engine of an agricultural and forestry tractor to maintain positive working capacity on a slope. This standard is applicable to agricultural and forestry wheeled and crawler tractors. 2 Test instruments and equipment and parameter measurement accuracy 2.1 Test instruments and equipment include: a variable slope test bench that can support and fix the tractor, a scale, a turntable, a timer, a thermometer, a type meter and a barometer, etc.
2.2 Parameter measurement accuracy requirements: demand 0.5%, transfer 19. Temperature 2°C, atmospheric pressure 20.2kPa, oil pressure ±10kPa, tire pressure ±5%, slope angle ±0.53 Test conditions
3.1 The tested tractor should be clutched according to the instructions. Before the test, the tractor parts should be checked according to the instructions. The tire pressure reaches the specified value. The specifications of lubricating oil, coolant, fuel and other working fluids should meet the requirements and be filled to the specified value: the engine oil pan should be filled to the median value of the allowable liquid level. 3.2 The ambient temperature of the test site is 23±7°C. 3.3 Parameter measurement location:
Oil temperature: measured at the drain plug of the oil pan: a.
Oil pressure: measured at the main oil channel inlet: b.
Coolant temperature: measured at the engine coolant outlet: c.
d. Cylinder head temperature (air-cooled engine): The measurement location shall be as specified by the manufacturer. 4 Test method
4.1 The tractor is placed on the test bench with a specified slope angle, with the front end of its longitudinal symmetry axis facing uphill and downhill (collar), between the right and left (horizontal debt), and the above four placement directions should be tested separately. During the test, the gear is put in neutral, the brake is applied, and the tractor is reliably fixed to prevent slipping and overturning.
4.2 Start the engine for preheating operation, and start the formal test when the coolant and engine oil reach the normal operating temperature. For each slope angle, measure the engine coolant temperature (actual cylinder humidity for air-cooled engines), engine oil temperature and pressure that have reached stability at the calibrated speed under no-load conditions. Record abnormal noises, coolant and engine leakage, and special records of accessories performed according to test requirements. 4.3 Increase the slope angle and continue the test. When the coolant temperature and engine oil temperature during the test are higher than the allowable operating limit in the instruction manual, or the engine oil pressure is unstable or drops below the specified lower limit, the test should be terminated. The maximum slope angle where the above conditions do not occur is the maximum allowable operating slope angle.
5 Test results and report
After arranging the test results, write a test report according to the following content. Approved by the Ministry of Machinery and Electronics Industry on May 28, 1992 and implemented on January 1, 1993
Test location
Tractor model
Maximum operating weight
Engine model
Rated engine speed
Factory specified value: Coolant upper limit temperature
Oil lower limit pressure
Front tire: specification
Rear tire: specification
Suspension: type
Ambient temperature
Tractor placement direction
Maximum slope angle ((\)|| tt||Coolant temperature
(or cylinder head temperature)
Oil temperature ℃
Oil pressure
Test description and special records:
Test personnel:
Additional instructions:
JB/T600092
Static test on tractor slope working adaptabilityTest datebzxz.net
Minimum use weight
Engine oil filling volume
Upper limit temperature of engine oil
Tire pressure
Atmospheric pressure
This standard is issued by the National Tractor This standard is drafted by Luoyang Tractor Research Institute of the Ministry of Machinery and Electronics Industry. The main drafter of this standard is Shi Yingbi.
Test No.
Manufacturer
Manufacturer
Coolant filling amount
Relative humidity
People's Republic of China
Mechanical industry standard
Agricultural and forestry tractor slope working adaptability
Static test method||t t||JB/T600092
Published by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing 100081)
Copyright reserved
Reproduction prohibited
Format 880×1230
1/16 Printing sheet 3/8
Word count 4000
First edition in October 1992 Second printing in October 1992 Number of copies 0.001500 Price 1.00 Yuan
Serial number 0913
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