SUNWARD SWE150F, Operation & Maintenance Manual

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4.6 General trouble shooting
Note

If the machine is kept in storage for long time, the oil film coated on kinetic surface
may be damaged. After starting the machine. It’s necessary to cycle individual kinetic
surface for 2 to 3 times to let it completely lubricated.
Engine
Problem Cause Possible remedy
Engine runs but it’s
difficult to start or
fails to start.
Out of fuel.
Mistake type or brand of fuel
or it’s polluted.
Defective wiring.
Insufficient battery power
Air filter clogging.
Fuel filter clogging.
Internal leakage in fuel
system
Fuel manual pump spring up
Air gets into fuel system
Start engine malfunction
Add fuel
Bleed the air from fuel system
Drain out the off-grade fuel. Fill with proper
fuel
Check starting circuit, clear the problem
Charging or replace new battery.
Clean filter or replace new filter.
Clean up filter or replace with new filter.
Bleed air in fuel system
Check and repair leaks
Push down and secure hand wheel
Use manual pump to bleed air
Replace start motor
Engine fails to make
full use of power.
Air filter clogging
Fuel piping clogging or oil
deliver malfunction
Improper fuel or pollution
Fuel filter clogging.
Ejection oil nozzle gets
polluted or malfunction
occurs
The clearance of eject pump
linkage out of spec
Clean or replace filter
Clear the problem or replace piping.
Drain the fuel and add proper fuel.
Bleed air in fuel system
Clean or change filter.
Bleed air in fuel system
Contact distributor
Contact distributor
Contact distributor