2-2.3 Check the air filter
(1)Loosen the butterfly nut，take the cover
ofthe air filter off and take the air filter ele-
ment out．
11
Do not use detergent to wash the air filter
element．When the performance ofthe engine
decreases or when the color of the exhaust
gases is bad，exchange the filter element．
Never start the engine without the air filter
as foreign obj ects may enter the intake and
damage the engine．
(2)After replacing the air filter element，re-
place the cover and tighten the butterfly nut
firmly．
2-2.4 Checking the generator
(Note：Only certain welder generator sets
have an electricfan incorporated on them.)
Before starting the generator，make sure the
air switch is in the“off”position．Starting
the generator with the switch in the“on”
switch is very dangerous．
The generator should be grounded in order
to prevent electric shock．
Use dry compressed air(with pressure about
1.96×105 Pa)to blow the dust out in the
electric control cabinet and at the surface of
the generatonCheck to see how clean the sur-
face of the sliding ring is．Check the pressure
of the carbon brush．Also，check whether the
position of the carbon brush at the slide rig
is correct and the fixture is reliable with a
good contact．
According to the electric wiring diagram，
check to see whether the connecting wire is
correct and the connected place is firm．
tion resistance of the electrical part．The re-
．When
measuring devices，make sure the capacitor
is turned off．Otherwise,it will burn the
capacitor．(For the low noise set，the inspec-
tion may not be performed)．
Filter core
Indicating
lamp
AC output socket AC output
Fuse
Automatic air
Switch
Butterfly
nut
Air filter
cover
