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File name alternator and regulator.pdf

ALTERNATOR & REGULATOR - HITACHI 1993 Nissan Sentra 1993 ELECTRICAL Nissan Alternators & Regulators - Hitachi Altima, Maxima, NX, Pathfinder, Pickup, Sentra, 240SX, 300ZX NOTE: If vehicle is equipped with Mitsubishi alternator, see ALTERNATOR & REGULATOR - MITSUBISHI article in the ELECTRICAL section. DESCRIPTION Conventional 3-phase, self-rectifying Hitachi alternator contains 3 positive and 3 negative diodes that rectify current. See Fig. 3. Regulator is inside alternator. ADJUSTMENTS BELT TENSION ALTERNATOR BELT ADJUSTMENT Application Altima ... .24-.28 (6-7) Maxima (2) VE30DE ... .29-.33 (7.5-8.5) VG30E ... .28-.35 (7-9) NX & Sentra 1.6L ... .28-.35 (7-9) 2.0L (With A/C) ... .28-.31 (7-8) 2.0L (Without A/C) ... .31-.35 (8-9) Pathfinder & Pickup 2.4L ... .39-.47 (10-12) 3.0L ... .24-.31 (6-8) 240SX ... .28-.31 (7-8) 300ZX ... .28-.31 (7-8) (1) - Deflection is with 22 lbs. (10 kg) pressure applied midway on the longest belt run. (2) - Vehicles with VE30DE engine use a distributorless ignition system. Vehicles with VG30E engine use a distributor. NOTE: NOTE: ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў ЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎЎ ЎЎЎЎЎЎЎЎ ЎЎ ЎЎЎЎ Ў TROUBLE SHOOTING See TROUBLE SHOOTING - BASIC PROCEDURES article in GENERAL INFORMATION section. (1) Deflection In. (mm) ON-VEHICLE TESTING Before testing, ensure alternator wire harness connections are secure, drive belt tension is okay and battery is fully charged. After starting engine, wait at least 30 seconds before measuring voltage. Terminals "S", "L", "B", and "E" are marked on alternator's rear cover. Terminal "F" is inside alternator. Alternator Test 1) Turn ignition on. If charge indicator light on instrument panel comes on, go to step 3). If light is off, disconnect alternator connector (terminals "L" and "S"). Ground terminal "L". If light remains off, replace indicator bulb, reconnect alternator connector and recheck. 2) If light comes on, reconnect alternator connector. Fullfield alternator by grounding internal terminal "F" with a wire. See Fig. 1. If light goes out, repair or replace alternator. If light is on, replace regulator. 3) Start and run engine at idle. If light is dim, flickers or remains on (bright), repair or replace alternator. If light goes out, ope