Hobart 6824-1, Operation And Maintenance Manual, Page: 73 / 214

b. Flashing exciter field without test box.
Flashing the field in a reverse direction could cause damage to voltage
regulator diodes.
•
(aa) Remove test receptacle cover (1-3; Fig. 4). Use two test leads equipped with a test
prod on one end and an “alligator” clip on the other. Insert the test prod of one lead in
terminal “D” of the test receptacle
(see Fig. 2), and connect the other end of the lead to a
good GROUND. Insert the test prod of the second lead in terminal “F” of the test receptacle
and momentarily touch the other end
(alligator clip)
to the “hot” terminal on the starter
solenoid to flash the field.
•
(bb) Disconnect leads and install receptacle cover
NOTE: If test leads with test prods are not available, insert short pieces of wire in proper test terminals to
make connections..
(12) Check position of load contactor “on-off” switch (20, Fig. 1), and engine-generator control switch
(18).
a. Load contactor switch (20) must be in
OFF
position.
b. Engine-generator control switch (18) must be in IDLE position.
b. Operational Test Procedures
(1)
Start the engine in accordance with instructions in 1-3; Para. 2, A thru C.
(2) Check operation of engine instruments: DC ammeter (17, Fig. 2), coolant temperature indicator
(21), oil pressure gage (23), and hourmeter (19).
(3) Check engine idle speed. Should be 825 to 875 RPM. Adjust, if necessary, in accordance with
instructions in Engine Operator’s Manual.
NOTE: A stroboscope is required for this check.
(4) Again check for oil, fuel, and coolant leaks and correct any leaking condition.
(5) Position switches and controls for automatic voltage regulation and power delivery as follows:
CAUTION
Test Receptacle Connector
Terminals Identification
Figure 2
OM-499
May 31/94 Revised 2-3
Page 3