Troubleshooting - NSS Enterprises COMMANDER Operation Manual

PROBLEM
1. The engine
fails to crank.
2. The engine
cranks slowly.
3. The engine
cranks but
fails to start.
4. The engine
runs and then
stops.
5. Odor of
burned rubber.
6. Engine
overheats.

TROUBLESHOOTING

a. Clean and tighten the positive (+) and negative (-) battery cable
connections at the battery and at the engine.
b. Check the plug connection between the battery and the engine.
c. Recharge the battery. Refer to the equipment or battery manufacturer's
recommendations.
a. Clean and tighten the positive (+) and negative (-) cable connections at
the battery and at the engine.
b. Recharge the battery. Refer to the equipment or battery manufacturer's
recommendations.
c. Chang engine oil to oil having the proper viscosity for the ambient
temperature.
a. Check the LPG container, if low on fuel, fill it, if over-filled, return to filling
station for adjustment.
b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Slowly open any closed fuel shut-off valves.
d. Service the air cleaner. Do not soak with oil!
e. Clean the cooling air precleaner (top).
f. Check to make sure the spark plug cable is on tight.
g. Replace the spark plugs.
h. Check the oil level and add oil if necessary.
i. Check both ends of the vacuum hose to make sure it is on tight.
j. Reconnect any loose wiring.
k. Make sure the proper type of LPG container is being used. The container
must have a vapor-withdrawal fitting to supply the engine with fuel.
l. Check for blown head gasket. See Engine Owners manual for servicing.
m. Fuel system out of adjustment.
Note: Only properly trained service technicians should adjust or repair
fuel system.
n. Check for defective ignition system. See Engine Owners manual for servicing.
a. Check the LPG container and fill as necessary. On cold days, the LPG
container may have to be kept at least half-full to provide the rate of
vaporization necessary to keep up with the engine fuel demand.
b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Check the engine oil level and add oil as necessary. Drain excess oil if
the level is above the dipstick "Full" mark.
a. Belt out of adjustment. See "adjusting belt tension".
a. Check for incorrect oil level. See Engine Owners manual for servicing
Check for build up of dirt inside engine shroud. See Engine Owners
b.
manual for servicing.
CORRECTIVE ACTION