Red-D-Arc D502K 5+2 Owner's Manual page 41

Trouble
Min or max CV weld output only.
B. Generator Power
Trouble
No generator power output; weld output
okay.
No generator power or weld output.
High output at generator
receptacles.
Low output at generator
receptacles.
C. Engine
Trouble
Engine will not crank.
Engine cranks but does not start.
Engine hard to start in cold weather.
Check position of Voltage/Amperage Adjust control and Voltage/Amperage Adjust Control switch.
Repair or replace remote control device.
Have Factory Authorized Service Agent check field current regulator board PC1.
Reset receptacle circuit breakers.
Disconnect equipment from generator power receptacles during start-up.
Check fuses F1 and F2, and replace if open (see Section 7-8). Have Factory Authorized Service Agent
check integrated rectifier SR1, capacitor C9, and the rotor.
Reset circuit breaker CB12. Have Factory Authorized Service Agent check field current regulator board
PC1 (see Section 7-8).
Have Factory Authorized Service Agent check brushes and slip rings, and field excitation circuit.
power Check engine weld/power speed, and adjust if necessary (see Section 7-5).
Have Factory Authorized Service Agent adjust generator power field current resistor R3.
power Check engine weld/power speed, and adjust if necessary (see Section 7-5).
Check fuse F1, and replace if open (see Section 7-8). Have Factory Authorized Service Agent check inte-
grated rectifier SR1, resistor R3, and capacitor C9.
Check battery, and replace if necessary.
Check battery connections and tighten if necessary.
Circuit breaker CB10 may be open. CB10 automatically resets when fault is corrected (see Section 7-8).
Have Factory Authorized Service Agent check engine wiring harness and components.
Check engine wiring harness plug connections.
Have Factory Authorized Service Agent check Start/Preheat switch S1.
Check fuel level.
Check battery and replace if necessary. Check engine charging system according to engine manual.
Have Factory Authorized Service Agent check electric fuel pump, fuel solenoid FS1, control relays CR1
and CR2, engine oil pressure switch S12, engine coolant temperature switch, time delay relay T, and
Engine Shutdown switch S7.
Air in fuel system. See engine manual.
Turn Preheat/Start switch to Preheat position before starting (see Section 5-1).
Keep battery in good condition. Store battery in warm area off cold surface.
Use fuel formulated for cold weather (diesel fuel can gel in cold weather). Contact local fuel supplier for
fuel information.
Use correct grade oil for cold weather (see Section 7-1 ).
Have Factory Authorized Service Agent check glow plug circuit.
Remedy
Remedy
Remedy
OM-4412 Page 37