Insufficient Output - WEICHAI WD615 Manual

Attached table: the inspection and removal of fault when engine
starts soon stops
Cause
Fuel filter clogged
Air entered into the
fuel system
Supply pump doesn't
work
Poor quality of fuel
Idling speed is too low

3.3 Insufficient Output

● Check whether low pressure fuel passage and quality of fuel are
normal. Come into next step if normal.
● Check whether air filter element, air inlet pipe and turbocharger are
normal. Come into next step if normal.
● Check whether valve clearance is normal. Come into next step if
normal.
● Check whether air exhaust pressure is too high. Come into next
step if normal.
● Contact professional maintenance personnel from professional
maintenance station to check for you.
Dismantle and clean away dirt and water
replace the filter element if necessary
Check fuel pipe and sealing of the connector
tighten air venting bolt, and drain off the air
Check piston and valve of supply pump clean
and repair
Clean fuel filter and renew fuel
Readjust it
52
Remedy