Nissan 90 ~93 free download

File name brake system.pdf

BRAKE SYSTEM 1993 Nissan Sentra 1993 BRAKES Nissan Disc & Drum Sentra DESCRIPTION & OPERATION All brake systems are operated hydraulically using a tandem master cylinder and vacuum power unit. All models have front disc brakes. Rear brakes are either drum or disc. BLEEDING BRAKE SYSTEM BLEEDING PROCEDURES NOTE: Check fluid level in master cylinder frequently during bleeding procedure. Bleed brake system in proper sequence. See BRAKELINE BLEEDING SEQUENCE table. BRAKELINE BLEEDING SEQUENCE TABLE Application Sentra 1) Attach a hand-held vacuum pump to power brake unit supply port. See Fig. 1. Apply 20 in. Hg vacuum to power brake unit. Measure length of output rod extending from power brake unit housing. 2) See POWER BRAKE UNIT OUTPUT ROD LENGTH SPECIFICATIONS table. Adjust output rod length if necessary. If output rod length cannot be adjusted properly, replace power brake unit. POWER BRAKE UNIT OUTPUT ROD LENGTH SPECS TABLE Application Sentra 1.6L (8" Booster) ... .19-.20 (4.8-5.1) Other Models ... .40-.41 (10.3-10.5) ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў ... Sequence LR, RF, RR, LF ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў ADJUSTMENTS POWER BRAKE UNIT OUTPUT ROD ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў In. (mm) Fig. 1: Measuring Output Rod Length Courtesy of Nissan Motor Co., U.S.A. BRAKE PEDAL HEIGHT & FREE PLAY 1) Measure pedal height from pressure face of pedal pad to floor pan insulator, without carpet. See BRAKE PEDAL HEIGHT SPECIFICATIONS table. 2) To adjust pedal height, loosen brake booster input rod lock nut, and rotate input rod to attain proper height. Tighten lock nut, and adjust stoplight switch. Ensure pedal free play is .04-.12" (1.0-3.0 mm). BRAKE PEDAL HEIGHT SPECIFICATIONS TABLE Application Sentra A/T ... M/T ... 1) Remove parking brake lever cover. Raise and support rear of vehicle. Pull up on parking brake lever using force of 44 lbs. (20 kg). Rear wheels should lock at appropriate lever stroke. See PARKING BRAKE LEVER STROKE SPECIFICATIONS table. 2) Adjust parking brake using adjusting nut located beside or below parking brake lever. After releasing lever, ensure rear wheels rotate freely and slack is not present at rear cables. ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ