Insufficient Output - Doosan V158TI Operation & Maintenance Manual

Insufficient output

Driven machine normal?
Excess intake air resistance
Excess exhaust
resistance
Fuel system
failure
Governor
Improper
adjustment
Lever link
malfunction
Reduced
compression
pressure
Overheat Refer to "Overheating"
Trouble shooting
Hydraulic pressure source
Clogged air cleaner
Clogged
muffler
Clean or replace
Air intrusion into
fuel system
Air bleeding
Improper clearance
of intake/exhaust
valves
Adjust
Clean
Clogged exhaust
pipe
Clean
Clogged Clogged
fuel filter fuel pipe
Clean or replace
Clogged air vent in fuel tank
Insufficient fuel volume from feed pump
Fuel injec- Clogged fuel
tion pres- injection valve
sure nozzle
Adjust Clean or replace
Improper
fuel injection
timing
Adjust
Defective
intake/exhaust
valve seat
Reshape or replace
Seizure, breakage
and wear of piston
ring
Replace
- 168 -
Change or reduce the propeller pitch
Clogged intake air pipe
Clean
Clogged cylinder
head exhaust outlet
Clean
Fuel pump Faulty
rack mal- delivery
function valve
Repair or Repair or
replace replace
Intake/exhaust
valve stem
seizure
Replace
Flaws or
wear of
piston
Replace
Fuel injec-
tion valve
seizure
Clean
Worn
plunger
barrel
Replace
Fatigued or
broken valve
spring
Replace
Pressure
leak through
cylinder
Replace
Flaws
or wear
of liner
Replace