LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Isuzu >> 1984 >> Impulse Standard >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternator - HITACHI >> On Vehicle Testing >> Output Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Output Test

  1. Set variable resistor to minimum resistance position. Close switches "SW1" and "SW2".
  2. Keep voltage constant while raising alternator speed by adjusting variable resistor. Measure alternator output current at 2500 and 5000 alternator RPM. See OUTPUT SPECIFICATIONS  table.
OUTPUT SPECIFICATIONS

Alternator (1) Amps At 2500 RPM (1) Amps At 5000 RPM
LR150-78 40 50
LT150-131B 40 50
LT150-144 40 50
8-94127-185-0 (2) 50 60
8-94127-186-0 (2) 50 60
8-94231-307-2 (2) 50 60
(1) Alternator RPM.
(2) Isuzu part number.
Fig 1: Alternator Operating Test Connections Diesel alternator terminals vary slightly.
G29370
scientia non olet · About LEMON Manuals