54
54-35
Service standards
• Connect the meters to the alternator as shown.
WARNING
• To prevent possible injury, be sure to disconnect the nega-
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.
• To connect to switch, use a lead wire with the same or larg-
er diameter than that of the chassis harness connected to
terminal B.
• Turn off the switches for lamps, heater, etc. so that electric loads
may not be applied during the inspection.
• Turn on switch and then start the engine.
• If the output current is 5 amperes or less when the engine speed
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
CAUTION
• If the output current is in the range from 5 to 10 amperes,
the measured value (regulated voltage) will be slightly low-
er.
28 V – 0.2 to 0.3 V
• If the output current is 5 amperes or more, do one of the follow-
ing:
• Run the engine for a while to charge the battery.
• Replace the battery with a fully-charged one.
• If the measured value deviates from the standard value, conduct
checking again on the test bench.
Location Maintenance item Standard value Limit Remedy
– Adjusting voltage 28.5 ± 0.5 V – Replace
#951 INSPECTION OF REGULATOR
To Next Page
Loading...
