Voltage regulator adjustment – Generac Power Systems 91355 User Manual
Page 27
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• While holding the GOVERNOR SHAFT fully clock
wise and the GOVERNOR LEVER at wide open
throttle, tighten the GOVERNOR CLAMP BOLT to
70 inch-pounds (8N-m).
3. Start engine, let it stabilize and warm up at no-load.
4. Turn the ADJUSTER NUT to obtain a frequency reading
of 62 Hertz.
5. Determine if the GOVERNOR SPRING is properly locat
ed In the slot of the GOVERNOR LEVER as follows:
•
If droop is excessive, move the GOVERONOR
SPRING down one slot on LEVER.
• For greater stability, move the GOVERNOR SPRING
up one slot on LEVER.
6. After repositioning the SPRING on a LEVER slot, recheck
frequency reading and, if necessary, readjust ADJUSTER
NUT to obtain 62 Hertz at no-load.
7. When frequency is correct at no-load, check the AC volt
age reading. If voltage Is incorrect, the voltage regulator
may require adjustment.
VOLTAGE REGULATOR ADJUSTMENT
The voltage regulator is housed iriside the generator
control panel. Remove the cover and front panel as
shown in Figure 32.
Figure 32 — Removing Cover and Panel
VOLTAGE
REGULATOR
With, frequency at 62 Hertz, AC voltage should read
124 volts. If voltage is incorrect, slowly turn the VOLT
AGE ADJUST POT on voltage regulator (Figure 33)
until AC voltage is correct.
Figure 33 — Voltage Regulator
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