Inspection Of Regulator - Mitsubishi 6M60-TL Service Manual

#951 INSPECTION OF REGULATOR

Service standards
Location
– Adjusting voltage
Maintenance item
• Connect the meters to the alternator as shown.
WARNING
• To prevent possible injury, be sure to disconnect the nega-
• To connect to switch, use a lead wire with the same or larg-
• Turn off the switches for lamps, heater, etc. so that electric loads
• Turn on switch and then start the engine.
• If the output current is 5 amperes or less when the engine speed
CAUTION
• If the output current is in the range from 5 to 10 amperes,
• If the output current is 5 amperes or more, do one of the follow-
• If the measured value deviates from the standard value, conduct
Standard value
28.5 ± 0.5 V
tive terminal of the battery and insulate it with tape before
working on the wiring. With the negative terminal (–) of the
battery connected, battery voltage is always applied to ter-
minal B.
er diameter than that of the chassis harness connected to
terminal B.
may not be applied during the inspection.
is raised to the appropriate speed indicated below, then mea-
sure the voltage at terminal B.
Approx. 1400 rpm <A4T40399>
Approx. 1900 rpm <A4T40379 (crankshaft pulley PCD 193mm)>
Approx. 2100 rpm <A4TU7686>
Approx. 2150 rpm <A4T40379 (crankshaft pulley PCD 168mm)>
PCD: Pitch circle diameter
the measured value (regulated voltage) will be slightly low-
er.
28 V – 0.2 to 0.3 V
ing:
• Run the engine for a while to charge the battery.
• Replace the battery with a fully-charged one.
checking again on the test bench.
54
Limit Remedy
– Replace
54-35