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TROUBLESHOOTING & REPAIR
F-27 F-27
RANGER 9 RANGER 9
AUXILIARY AND FIELD WINDING TEST (continued)
Z
W
Y
X
K
B
I
H
N
L
C
D
M
G
E
F
J
A
FIGURE F.4A - 14 PIN AMPHENOL PIN ASSIGNMENTS
To test the feeder winding:
1. Remove the fuel cap and lift bail rubber
gasket. With the 5/16” nut driver, remove
the case top and left side; then reinstall the
fuel cap.
2. Connect the volt/ohmmeter probes to leads
#31 and #32 where they connect to the cir-
cuit breaker CB1 and the 14 pin amphenol.
See the Wiring Diagram.
NOTE: It is possible to check this voltage
reading at the amphenol by inserting
the test probes at pin A (for lead #32)
and J (for lead #31A). See Figure 4A.
However, if you use this method and
get no voltage reading, it could mean
there is a break or loose connection in
the leads between the circuit breaker
and the amphenol. Check the reading
again with one probe at the circuit
breaker connection for lead #31 and
the other probe at amphenol pin A.
3. Start the engine and run it at high idle (3700
RPM).
4. Set the output control to the maximum
(position 10).
5. Check the AC voltage reading. It should be
between 115 and 126 VAC.
6. Connect the volt/ohmmeter probes to leads
#31 and #42 where they connect to the cir-
buit breaker CB1 and the 14 pin amphenol.
See the Wiring Diagram.
NOTE: It is possible to check this voltage
reading at the amphenol by inserting
the test probes at pin K (for lead #42)
and I (for lead #31B). See Figure 4A.
However, if you use this method and
get no voltage reading, it could mean
there is a break or loose connection in
the leads between the circuit breaker
and the amphenol. Check the reading
again with one probe at the circuit
breaker connection for lead #31 and
the other probe at amphenol pin K.
7. Set the output control to the maximum
position (position 10).
8. Check the AC voltage reading. It should be
between 43 and 50 VAC.