12.3 Main Body
23
Valve open/close timing inappropriate
Clogged exhaust hole, muffler
Overload
Piston, cylinder ring wear
Nozzle hole clogging
Piston ring stuck
Wrong assembly (upside down) of piston ring
Inappropriate injection timing
Inappropriate valve open/close timing
Looseness of injection pump joint
Leakage from fuel passage
Clogging of the air cleaner element
Inappropriate fuel due to mixing of impurities
Overload
Use of wrong oil
Failure to change oil
Breakage of the air cleaner element or failure to clean the air cleaner
Too much oil
Wrong assembly of the governor system
Detached injection pump rack
Insufficient engine output and inappropriate high speed set revolution
Slipping of clutch
Slipping of V-belt
Too much vibrator oil
Failure inside vibrator
Hand pump problems
Inappropriately installed forward/backward motion lever
Breakage of the oil hose
Mixing of air in the hydraulic oil
Clogging of foreign materials in the check valve inside the hand pump
Breakage of the piston bearing in cylinder
V-belt coming off, slipping and breakage
Slipping of the clutch
Locking of the vibrator
Breakage of the piston bearing in cylinder
Piston inside the hand pump not moving smoothly
Vibrator cylinder piston does not move smoothly
Firing problem with
white smoke
(when unloaded)
Fuel consumption too
high (black smoke)
Stopped suddenly with abnormal noise
Searing or damage of the piston, rod, etc.
Lubrication oil diluted and increased
.
Wear on the injection pump barrel or plunger
Engine does not stop
even though the fuel
supply is cut
(or over-running)
Low travel speed and
vibration weak
Move forward or
backwards, but unable
to switch between back
and forth motion
No forward,
backward motion
Movement of l
ever heavy
Engine revolution
does not increase.
Extensive wear on
sliding parts or
stuck piston rings
