Document 61Nq8OBdeJ6DwVn5KypGQ0Ro

DISTRIBUTION; i R. Mack R. Burks J. Kozdron M. Collins K. Patel R. Smith (4) J. Latsko ROUTE: MS, RR, TK, JT DATE AIRFLEX TEST REQUEST July 15, 1983 _______ _ requested BY Jim Latsko TEST DESCRIPTION NON-ASBESTOS STANDARD COEFFICIENT FRICTION MATERIAL EVALUATION/' ON 14VC50Q CLUTCH TEST STAND 300HP PARIS LIST PART NUMBER/S 42x223 FLOW CONTROL VALVE - - Xr X` Y OR Z NUMBER Y0259-4 "I ^ . f . ; "" 1.0 PREFACE: Because of the potential health hazards associated with; ksbeftosj,"including the Jpossibility of additional govenment controls and/or regulations, it is desirable to eliminate the use of asbestos in our frictipn; materials. 2.0 OBJECTIVE: -, :J The objective of this test is to qualifyJnon-asbestos friction materials as suitable for normal VC element usage. - \ '*' f'stW ii ?: ' \ *1 3.0 INSTRUCTIONS: , ^ -'X , 3.1 HEAR IN: .1 .' Using a 14VC500 and a new/refjnished drum with friction material as specified by the writer, wear in the friction materiaVat 340 RPM, 250F drum bulk temperature, 75 ' PSI effective pressure per the Basic Inertia Acceleration Standard Procedure #ABCDEJKLQRTU 0062 OOOO^C. 3.2 PERFORMANCE: tJ Utilizing the;3>t procedure, conduct performance tests at 150F, 250F, 350F, 450F, 550F, and.4'5QF; howeyer, after each of the preceeding conditions, obtain a static ' torque data point.utilizing the "pullout" test method. Plot average torque versus __ average <tTM' temperature. , 3.3 HIGH ENERGY: yJ * If -performance test results warrant further evaluation, conduct a 100 PSI <*, - effective flow controlled 4 sec. to 8 sec. (slip time) high energy inertia acceleration (ambient to 100F starting drum temperature) to 340 RPM, with sufficient accelerations to establish stabilized acceleration characteristics. 3.4 WEAR: If the above test results warrant further evaluation, conduct a wear test with new friction material and a new/refinished drum per the 3.1 procedure. t- Jim Latsko JL: jo FAW 22672