Craftsman 636.796912 - Manual (Page 8)

IX. STORAGE AFTER USE 5. Store the unit in a dry atmosphere and keep out dust.
1, Correctly preparing your Sears Power Blower for extend­
ed storage will be amply rewarded by an increased service
life and trouble-free performance,,
2 Drain fuel tank and carburetor thoroughly,
Drain carburetor through drain cock,
3, Remove spark plug, pour one teaspoon of engine oil into
cylinder and pull recoil starter gently to distribute the
oil. Replace spark plug securely.
4. Thoroughly clean the unit and coat unprotected surfaces
with oil to prevent rust.
It is important to prevent gum deposits from forming in
essentia! fuel system parts such as the carburetor, fuel filter,
fuel hose^ or tank during storage. Also, experience indicates
that alcohol blended fuels {called gasohol or using ethanol or
methanoll can attract moisture which leads to separation and
formation of acids during storage. Acidic gas can damage the
fuel system of an engine while in storage.
To avoid engine problems, the fuel system should be emptied
before storage of 30 days or longer. Follow these instructions:
K TROUBLE SHOOTING
Refer to the chart to locate the problem and take the appropriate action.
Table 1
6
c
R
Ш
О I
Z ^
’ ti
LI,
X
ti
« c X «
Û-0
« - c
о a
a
x: K ¡r 2
Э
a
-If
. «
a
x:
H
Fuel is not
reaching
Fuel line hose clogged „ Clean.
carburetor
Fuel is not
1 ___ PisTon.& cytinder worn..,.. ...... Replace,
— reaching -------------—^-----Strainer dogged Clean.
cylinder
i----- Carburetor out of order , Disassembie and check.
Ignition coil
-in good-
condition
-No spark at plug -
, Wire connection defective .
High-tension cord
‘ connection defective ........... .
. Insulator cracked
. Spark gap incorrect.
. Covered with carbon
, Fouled with fuel
Starting procedures
■ incorrect ...................... .
Fuel does
not keep
funning Fuel valve clogged with
□ dust ........................... ....................
Fuel passage in carburetor
clogged with dust ......................
L i
о
a
Accelera­
tion and
low speed -
function
defective
* w
Carburetor _
overflow
Fuel leaking from fixing
■ surfaces of carburetor
Carburetor does
■ not work normally .........................................................
Crankcase and cylinder
‘ pressure leaks .....................
Fuel inlet needle valve
- clogged with dust .................
Exhaust pipe sticky
■ with fuel
Engine does
' not crank *
. Searing damaged ,__________
■ Piston and cvlirtder seized.
, Crankshaft worn
Crankshaft contacting
’ crankcase
Heconnect
Repair as necessary.
, Replace plug.
, Adjust.
, Clears or replace.
. Clean or replace.
. Start correctly
. Clean,
. Disassemble and replace
, Retighten.
, Replace,
.. Stop leakage,
.. Clean.
This is because fuel mixture
is too rich,
■ Start the engine several times
with choke lever fully open.
, Disassemble and replace
. Disassemble and replace,
. Disassemble and replace,
, Disassemble and replace,