Generac Power Systems 5412 사용자 설명서

Section 2
MAJOR GENERATOR COMPONENTS

NOTE: If, for any reason, sensing voltage to the

regulator is lost, the regulator will shut down and

excitation output to the Rotor will be lost. The

AC output voltage will then drop to a value that

is commensurate with Rotor residual magnetism

(about 7-12 VAC). Without this automatic shut-

down feature, loss of sensing (actual) voltage to

the regulator would result in a “full field” or “full

excitation” condition and an extremely high AC

output voltage.
NOTE: Adjustment of the regulator’s “VOLTAgE

AdJUST” potentiometer must be done only when

the unit is running at its correct governed no-load

speed. Speed is correct when the unit’s no-load

AC output frequency is about 60.0-60.5 Hertz. At

the stated frequency, AC output voltage should be

about 124 volts.

CRANkCASE BREATHER

CRANKCASE
BREATHER

GASKET

SCREEN

OIL VAPOR
COLLECTOR

Figure 2-8. – Crankcase Breather

DESCRIPTION:
The crankcase breather is equipped with a reed valve

to control and maintain a partial vacuum in the crank-

case. The breather is vented to the airbox. The breath-

er chamber contains a removable oil vapor collector.

Oil vapor is condensed on the collector material and

drains back into the crankcase, which minimizes the

amount of oil vapor entering the breather.

CHECk BREATHER:
1. Disconnect breather tube and remove two screws

and breather. Discard gasket.

2. Remove oil vapor collector and retainer.
3. Check collector for deterioration and replace if

necessary.

INSTALL BREATHER:
1. Install oil vapor collector and retainer.
Note: Push oil vapor collector and retainer in until

it bottoms.
2. Install breather with new gasket (Figure 2-8).

a. Torque screws to 5-8 ft-lbs.

3. Assemble breather tube to intake elbow.

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