Document g23kvzYqQwD3qg8Zyga86jd5q

rr? R3 XXl '{A Product En^nHdng Ptvr*Jcf To*t Ubotctoriei TEST CONDITIONS: BRAKE DYNAMOMETER INSTALLATION SHEET Proceduro DM* _22__ 0. P/9S3 -/I? DATE: /3 TEST NO. MA- 3* Sotup No.:_,,i?_fL .Broke Broke Bolcnce: 70-30Z Location; R.R. .Flywheel Discs:. -G.T.W.:. JL4 Lbs. Roll. Rad:. JL983 F,` ^ Inertia: 546 Lb.*Ft. 2 O Oz TYPE BRAKE: 1982 'J* car 200 x45 mm duo-servo rear drum 2 iUUi Ul l--; DISC BRAKE: h H 55 Lining Material: , Drtrription Rotor Material: _Type of Finish: Surface Finish Microinches __ Rater Diameter: Rotor Thickness: . Hub A Rotor Weight: . Caliper Piston Diameter: ___ DRUM BRAKE: * Lining Material: Pri. 9% 1' 83* 2. Drum Material:____Prod.(WOM -FltJN Surface Finish Microinches . . /* 3 Diametral Clearance;. .035 inch V/heel Cylinder Diameter: 17.5 mm ____ _Type of Finish; Vr-nA * Drum Diameter: t Drum Weight: , ,7r 3 9 inches pounds SPECIAL INSTRUCTIONS? Thermocouple location: Install a plug type thermocouple .080" below the rubbing surface on the horizontal centerline adjacent to the backing plate side of the secondary shoe web. Limit line pressure to 2000 PSI during entire test. Initiate fades at 100 F. maximum lining temperature. PURPOSE OF TEST: Drum brake lining material evaluation. SCHEDULE SHEET NO. 1. Measure lininns. drum diameter and surface finish. 2. Pre-burnish effectiveness: 30 & 60 KPH decelerations. Room temperature. 3. Burnish: (12 stops); stop 1, 40/10. stops 2 thru 11. 60/15, and stop 12, 8 3 9 ' 40/10. Make stops at 90 sec. int. until 270 F. lining temp., is attained. Make remainder of stops at 270 F. initial lining temo. 4. Post Burnish effectiveness: 30, 60, & 80 MPH decels. (150 F. Initial temp. ) ' 5. C.P.S.: (3) 60 MPH @ 450 PSI. (150 F. initial temp.) 6. Static breakaway: Apply 1000 PSI with 250 lb.ft. torque load on brake. 4. 6 9. .... Release.pressure <s 10 PSI increments until slight drum rotation is observed. Rprnrd rbc ovprafi. of the 3 applies, at start of rotation. 7. Fade: (a) Initial feels. (3 snubs) 30 MPH. 10 ft/sec2 @ 90 sec. int. (b) (10) 60 MPH stops, 15 ft/sec^ @ 45 sec. int. (c) Recovery, (6 snubs) 30 MPH, 10 ft/sec? (3 90 sec. int. 8. Rebumish: (4 stops) Same as step 3, except, make`only, (2) 60 1IPH stops. 9. Fade: Reipeat step 7, except, make 15 stops. 10.'Reburnish: Repeat step 8.' . 11. Post fade effectiveness: Repeat step 4, 12. C.P.S.: Repeat steo 5. 13. Measurements: Same as step 1. . 9 9 9 .. 9 5 7 8 DM-2W7 Rev. 3-76 r SCI 02627