Onan MicroLite 4000 Series User Manual

9-11
TABLE 9-1. STATOR GROUND TEST
TEST POINT OHMMETER READING
T1 to ground INFINITY
T2 to ground INFINITY
B1 to ground INFINITY
B2 to ground INFINITY
Q1 to ground INFINITY
Q2 to ground INFINITY
Open Or Shorted Stator Windings Test:
To test for open windings, set the ohmmeter for the
highest resistance scale and then connect the test
prods (see Figure 9-9) to the terminals specified in
Table 9-2. The ohmmeter should indicate continuity
between terminals. A high resistance reading indi-
cates an open winding. If an open circuit is mea-
sured replace the stator.
To test for shorted windings, use a digital type ohm-
meter that reads to within 0.001 ohms. Connect the
test prods to the terminals specified in Table 9-2. A
reading of less than the value shown in Table 9-2 at
77
°F (25°C) indicates a shorted winding. If stator
tests indicate a shorted winding, replace the stator.
If stator tests good, check stator connectors and
leads for continuity, and for good electrical connec-
tion with the stator terminals.
TABLE 9-2. STATOR OPEN OR SHORTED
WINDING TEST
OHMMETER READING
AT 77°F (25°C) ± 10%
TEST POINT 60 Hz 50 Hz
T1 to T2 0.271 0.653
T3 to T4 – 0.653
B1 to B2 0.085* 0.114
Q1 to Q2 1.985 2.373
*Spec A 60 Hz Only
ES2019s
STATOR
STATOR
CONNECTOR
FIGURE 9-9. STATOR ASSEMBLY

Onan MicroLite 4000 Series Specifications

General

Brand	Onan
Model	MicroLite 4000 Series
Category	Portable Generator
Language	English