OM-252 624 Page 61
D. Engine
Trouble
Remedy
Engine will not crank.
Supplementary protector CB2 open. Reset CB2.
Check battery connections and tighten if necessary. Check battery, and replace if necessary.
Circuit breaker CB10 may be open. CB10 automatically resets when fault is corrected (see Section 8-7).
Have Factory Authorized Service Agent check engine wiring harness and components.
Check engine wiring harness plug connections.
Have Factory Authorized Service Agent check fuel/hour gauge, control relay CR5 and Engine Control
switch S1.
Engine cranks but does not start.
Check fuel level.
Check battery and replace if necessary. Check engine charging system according to engine manual.
Have Factory Authorized Service Agent check fuel/hour gauge, control relay CR5, fuel pump, and fuel
solenoid FS1.
Air in fuel system. See engine manual.
Engine starts, but stops when Engine
Control switch is released.
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temperature
is too high (see Section 5-7). Automatic shutdown system is inhibited for 30 seconds after start-up.
Have Factory Authorized Service Agent check fuel/hour gauge, and control relay CR5.
Engine hard to start in cold weather.
Use starting aid switch (see Section 6-2).
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 8-1).
Engine suddenly stops.
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temperature
is too high (see Section 5-7). Automatic shutdown system is inhibited for 30 seconds after start-up.
See engine manual.
Engine slowly stopped and cannot be
restarted.
Check fuel level.
Check engine air and fuel filters (see Sections 8-4 and 8-6).
See engine manual.
Battery discharges between uses.
Turn Engine Control switch off when unit is not running.
Clean top of battery with baking soda and water solution; rinse with clear water.
Recharge or replace battery if necessary.
Periodically recharge battery (approximately every 3 months).
Engine idles, but does not come up to
weld speed.
Have Factory Authorized Service Agent check current transformer CT1 and main control board PC1.
Check for obstructed throttle solenoid.
Engine does not run at idle speed.
Circuit breaker CB14 may be open. CB14 automatically resets when fault is corrected (see Section
8-7). Check for obstructed throttle solenoid. Have Factory Authorized Service Agent check TS1.
Have Factory Authorized Service Agent check control relays CR3 and CR4.
Engine uses oil during run-in period;
wetstacking occurs.
Dry engine according to run-in procedure (see Section 10).
