Kohler l654 Manuale di servizio - Pagina 12
Sfoglia online o scarica il pdf Manuale di servizio per Generatore portatile Kohler l654. Kohler l654 44. Engine
Stampa la paginaGASOLINE
FUEL PUMP
The fuel pump does not require
regular
service
but may have to be rebuilt
to restore
normal
efficiency
after
extended
hours
of operation.
If your engine falters
or stumbles
each time the load is
increased,
this may be due to a worn-out
fuel pump.
The repair
kit listed
in the parts
manual for this
pump includes
all parts
necessary
to restore
normal
efficiency
of the fuel pump.
Remove
fuel pump
from
engine and rebuild
as follows:
DISASSEMBLY
_
STEP
1:
Scribe
matching
marks .on fuel head and pump body before
disassembly.
STEP
2:
Remove
cover
capscrew
and cover.
Discard
cover
gasket.
STEP
3:
Remove
6 screws
from
around perimeter
of fuel head,
then separate
head from
body.
Note direction
of valves
then press
old fuel valves
out of fuel head--discard
valves
and valve
gaskets.
GASKET-/
m
es
PUMP
53
COVER
: DIAPHRAGM
I
-f !
3
a
I
m
'VALVE
i
SEAL-
x
L-ARM SPRING
v?
PUMP BODYa
n
NOTE:
Primer
lever
is spring
'r&d
to
DUZZ back
into
position At
to
engine-
if it sticks in the atended
position, t?&
diaphmgm cm-
not
operate to pump fbeZ.
Make su2-w teverretums to
proper posCtion.
.
FIGURE 4-5
--
FUEL PUMP
EXPLODED AND CUTAWAY VIEWS
STEP
4:
To disassemble
pump body,
first
insert
screw
driver
blade into coils
of pump arm
spring
and compress
spring
to remove.
Next com.press
the diaphragm
spring
then
lift the link to disconriect
and remove
the diaphragm
and oil seal--discard
these
parts.
Push pin out to release
pump arm and link to complete
disassembly.
RECONDITIONING
Wash fuel head,
body and cover
in gasoline
and clean with stiff bristle
brush.
Make
sure all
traces
of gasket
material
is removed
from
surfaces.
Recondition
components
as follows:
FUEL
HEAD:
Position
new valve
gaskets
then press
new valves
from
kit into place.
Position
new
cover
gasket
on head,
then install
cover
and tighten capscrew.
PUMP
BODY:
Position
link and pump arm,
the- install
and stake new pin.
Place
new oil seal and
spring
then install
n&w diaphragm
assembly
and hook it to the arm link.
Replace
pump arm spring.
Don't reassemble
the body
to
the fuel head at this time.
/.-
*
INSTALLATION
ON ENGINE
To attain proper
operation
of the rebuilt
pump be sure to follow
this reinstallation
procedure.
.
STEP
1:
Use a new pump body gasket
then reinstall
pump body assembly
on engine.
Turn
engine until diaphragm
is flat against
the pump body then position
fuel head (with
scribe
marks
aligned),
then temporarily
tighten the six screws
only about three
turns--again
turn the engine until the diaphragm
pulls down into the body then
securely
tighten the six screws.
After
this is done,
reconnect
fuel lines
to com-
plete
the reinstallation.
.
44 0