User Manual

( 2 ) Air trapped in the fuel system
(3 ) Delivery pump fails
in delivering
fuel or delivers brokienly
(4 ) Injector sprays abnormally
1. 2 insufficient compress pressure
( 1) Piston ring and cylinder liner
wear
(2) Piston ring gumming
(3) Valve leaks
(4) Temperature is low after end of.
compression
1.3 Trouble in electric devices
( 1) Battery is insufficient
(2) Connecting of electric devices is not
good
(3) Starting motor
on rotate or rotates in-
sufficiently
( 4 ) Clutch of starting motor skids
(5) Gear of starting motor cnt't inlay the
flywheel gear - rim
2. Unsteady running of the engine
Trouble cause
and its feature
( 1) Fault in fuel system
( 2) Too much water
in fuel
(3 ) Leakage
in fuel passage
• 52 •
(2) Vent the air from the system withe
the fuel delivery pump, check whether t-
her
is leakage of fuel and air in the fuel
pipes
(3 ) Check
and repair
(4 ) Check and adjust or replace the nee-
dle valve mate
1.2
( 1) Check and replace worn parts
(2) clear off gumming
( 3 )
Vave spring broken or elasticity
weakens, valve
lash is incorrect, valve
seal is not good, eliminate the ault
(4 ) Environmental temperature is low, use
preheat starting method
1.3
(1) -Recharging the battery to the speci-
fied- point
(2) Check the tighten· of the connection
( 3) Check the starting motor
(4 ) Check and repair the clutch of the
starting motor
(5 ) Find out the fault and eliminate it
Remedy
( 1) Handle according to the (1), (2 )
(3 ) , (4 ) in the 1. 1
(2) check the dampness in the fuel
(3 ) Check
and eliminate the fault
(4) Governor works abnormally