Sears CRAFTSMAN 944.608340, Руководство пользователя, Страница: 16 / 52

16
MAINTENANCE
V-BELTS
Check V-belts for deterioration and wear after 100 hours and
replace if necessary. The belts are not adjustable. Re place
belts if they begin to slip from wear.
TRANSAXLE COOLING
Keep transaxle free from build-up of dirt and chaff which
can restrict cooling.
FIG. 16
FIG. 15
CLOSED
AND
LOCKED
POSITION
DRAIN
TUBE
OIL DRAIN VALVE
TO CHANGE ENGINE OIL (See Figs. 15 and 16)
Determine temperature range expected before oil change.
All oil must meet API service classification SG-SL.
• Be sure tractor is on level surface.
• Oil will drain more freely when warm.
• Catch oil in a suitable container.
•
Remove oil fill cap/dipstick. Be careful not to allow dirt
to enter the engine when changing oil.
• Remove yellow cap from end of drain valve and install
the drain tube onto the fitting.
• Unlock drain valve by pushing inward and turning
coun ter clock wise.
• To open, pull out on the drain valve.
• After oil has drained completely, close and lock the
drain valve by pushing inward and turning clockwise
until the pin is in the locked position as shown.
• Remove the drain tube and replace the cap onto to the
bottom fitting of the drain valve.
• Refill engine with oil through oil fill dipstick tube. Pour
slowly. Do not overfill. For approximate capacity see
“PRODUCT SPECIFICATIONS” section of this man u al.
• Use gauge on oil fill cap/dipstick for checking level.
Be sure dipstick cap is tightened securely for accurate
reading. Keep oil at “FULL” line on dipstick. Tighten cap
onto the tube securely when finished.
YEL LOW CAP
• Clean terminals and battery cable ends with wire brush
until bright.
• Coat terminals with grease or petroleum jelly.
• Reinstall battery (See “CONNECT BATTERY” in the
Assembly sec tion of this manual).
CLEAN AIR SCREEN
Air screen must be kept free of dirt and chaff to prevent
engine dam age from overheating. Clean with a wire brush
or com pressed air to re move dirt and stubborn dried gum
fibers.
ENGINE
LUBRICATION
Only use high quality detergent oil rated with API service
classification SG-SL. Select the oil’s SAE viscosity grade
according to your expected operating temperature. When
operating in temperatures below 0º F (-18º C) syn thet ic
oil must be used.
* CAUTION: Air cooled engines run hotter than automo-
tive engines. The use of non-synthetic multi-viscosity oils
(5W30, 10W30 etc.) in temperatures above 40º F (4º C) will
result in higher than normal oil consumption. When using
a multi-viscosity oil, check oil level more frequently.
** CAUTION: SAE 30 oil, if used below 40º F (4º C), will
result in hard starting and possible engine bore damage
due to inadequate lubrication.
NOTE: Synthetic oil meeting ILSAC GF-2, API
certification mark and API service symbol (shown
at left) with "SJ/CF ENERGY CONSERVING" or
higher, is an acceptable oil at all temperatures.
Use of synthetic oil does not alter required
oil change intervals.
Change the oil after every 50 hours of operation or at
least once a year if the tractor is not used for 50 hours in
one year.
Check the crankcase oil level before starting the engine
and after each eight (8) hours of operation. Tighten oil fill
cap/dipstick securely each time you check the oil level.
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
SAE VISCOSITY GRADES
-20
-20
-10
10
-30
20
20 30
40
0
0
40 80 100
F
C
*
32 60
**
30
Synthetic 5W-30, 10W-30
5W-30, 10W-30
oil_visc_chart9_e.
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SAE
5W-30
FOR
GASOLINE
ENGINES
AIR FILTER (See Fig. 17)
Your engine will not run properly using a dirty air filter. Clean
the foam pre-cleaner after every 25 hours of op er a tion or
every season. Service paper cartridge every 100 hours of
operation or every season, whichever occurs first.
Service air cleaner more often under dusty conditions.
• Remove
cover.