Storage After Use; Trouble Shooting - Craftsman 636.796912 Owner's Manual

IX. STORAGE AFTER USE
1. Correctly preparing your Sears Power Blower for extend-
ed s_orage wil_ 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,
5, Store the unit in a dry atmosphere and keep out dust,
It is important to prevent gum deposits from forming in
essential fuel system parts such as the carburetor, fuel filter,
fuel hose_ or tank during storage. Also, experience indicates
that alcohol b_ended fuels (called gasohol or using ethanot or
methanol} can attract moisture which leads to separation and
formatior_ of acids during storage_ Acidic gas can damage the
fuel system of an engine while in storage
To avoid _engine problems, the fuel system shoutd be emptied
before storage of 30 days or longer. Follow these instructions:
X_ TROUBLE SHOOTING
Refer to the chart to locate the problem and take the appropriate action_
Table 1
o
==
E
o
5 =
c
_ w
"o
w
Fuel is not
.............................. reaching
carburetor
Fuel line hose clogged ............... Clean_
)
,E
_=
,_ = r-
L_ °
r* U
u
U_
Fuel is not
reaching
m/tinder
_ Ignition coil
._t M
"_ c _in good
c_o condition
0 r
z_ =
Piston& cylinder worn ............ Replace,
_ Strainer c_ogged Clean.
Carburetor out of order ......... Oi_ssembte and check,
_W_re connection defective ....... Reconnect
High_tenslon cord
connection defective ................ Repair as neces_ary_
._=
r_
_0
Insulator cracked ........................ Replace plug.
___ Spark gap incorrect .................. Adiust,
• No spark at plug Covered with carbon ................. Clean or replace.
Fouled with fuel ............................... C_ean or repia_e
-_ Fue] does
not keep
_-- running
E
_ "_ Accelera,
_ tion and
2 _ _ low speed
p
function
L_ _ _ defect,re
u_u
L Carburetor
over fl_,_
Starting procedures
incorrect ............................. Start correctly
Fuel valve c)ogged with
dust ................................ Clean.
L-_ Fuel p_sega in carburetor n --s .....
clogged with dust .................. _d _=.ru_= and reD&ace,
Fuei leak;no from fixing
___ surfaces of carburetor ........ Retighten.
Carburetor does
not work normally ................ Replace.
L-_ Crankcase and cylinder Stop leakage_
pressure leaks .......... ..........
Fuel inlet needle vatve
c)ogged with dust ............... Clean,.
This is because fuel mtxlure
Exhaust pipe sticky is; too rich_
with fuel ..................... Start the engine several times
with choke lever fully open_
Bearing damaged ........................... Ofsassemble and replace
(
_} Piston and cylinder seized ...... Olsassemb(e and replace.
Crankshaft worn ..................... Disassemb{e and replace,
m
Crankshaft contacting t_; ...... _,_.
crankcase ........................................... and replace,