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OM-493 Page 27
C. Engine
Trouble Remedy
Engine will not crank. Check fuse F6, and replace if open (see Section 7-4).
Check battery voltage.
Check battery connections and tighten if necessary.
Check plug PLG4 and plug PLG8 connections.
Have Factory Authorized Service Agent check Engine Control switch S2.
Engine will not start. Check fuel level.
Check battery voltage.
Check battery connections and tighten if necessary.
Check oil level (see Section 4-2).
Check low oil pressure shutdown switch (see Parts List for location).
Have Factory Authorized Service Agent check optional fuel shutoff solenoid FS1.
Engine starts but stops when Engine
Check oil level.
Control switch returns to Run position.
Check and refill crankcase with proper viscosity oil for operating temperature, if necessary.
Check low oil pressure shutdown switch (see Parts List for location).
Engine stopped during normal
Check fuel level.
operation.
Check oil level (see Section 4-2).
Check low oil pressure shutdown switch (see Parts List for location).
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check voltage regulator and connections according to engine manual.
Have Factory Authorized Service Agent check optional fuel shutoff solenoid FS1.
Battery Discharges between uses. Clean battery, terminals, and posts with baking soda and water solution; rinse with clear water.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check voltage regulator and connections according to engine manual.
Engine idles but does not come up to
weld speed.
Have Factory Authorized Service Agent check auto idle module PC1, and current transformer CT1.
Unstable or sluggish engine speeds. Readjust throttle linkage if necessary. Check throttle solenoid TS1 for smooth operation.
Tune-up engine according to engine manual.
Engine does not return to idle speed. Remove weld and auxiliary power loads.
Check throttle linkage for smooth, non-binding operation.
Have Factory Authorized Service Agent check idle module PC1, current transformer CT1, Engine Control
switch S2, and throttle solenoid TS1.