Standard No.:	MT/T 85-1999
English Name:	Test specification for hydraulic components used in shearer
Chinese Name:	采煤机液压件试验规范
Chinese Classification:	D98    Coal mine special equipment
Professional Classification:	MT    Professional Standard - Coal
ICS Classification:	73.100.99 73.100.99    Other mining equipment 73.100.99
Source Content Issued by:	State Bureau of Coal Industry
Issued on:	1999-11-11
Implemented on:	2000-3-15
Status:	valid
Superseding:	MT 85-1984
Target Language:	English
File Format:	PDF
Word Count:	5000 words
Translation Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard specifies type test specification for chief shearer-used hydraulic components, like hydraulic pump, hydraulic motor, hydraulic valve, oil cooler, oil filter, energy accumulator, raise-adjusting and oblique-adjusting hydro-cylinder, hose assembly, etc., and it is a basis to inspect the reliability of products. This standard is applicable to type tests for shearer hydraulic component whose working medium is hydraulic oil. 2 Conditions Viscosity, temperature and filtering accuracy of hydraulic oil, testing instrument precision, and rules for type test shall meet the requirements of GB 7935-1987 "Hydraulic Fluid Power -- General Rules of Technical Requirements for Hydraulic Components".

Contents 1 Scope 2 Conditions 3 Normative References 4 Hydraulic Pump 5 Hydraulic Motor 6 Hydraulic Valve 7 Oil Cooler 8 Oil Filter 9 Energy Accumulator 10 Raise-adjusting/ Oblique-adjusting Hydraulic Cylinder 11 Hose Assembly