Minuteman E20S - Page 56

B-
From Battery
B+
From Battery
B+
Controlled
B-
Controlled
25 Volts
Digital Volt Meter
18. Testing the Main Power Relay on the E17, E20 and
E26ECO
Note: Measure the voltage from the battery positive
source to the B- terminal of the main relay’s coil to
determined of the B- is being supplied to the coil.
It should be 24 volts.
+ -
-
+
Batteries
OR
Page 56