THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
1-21-2
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Avoid touching exhaust components whileAvoid touching exhaust components while
changing the oil for severe burns couldchanging the oil for severe burns could
occur.occur.
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Some state and federal agencies in theSome state and federal agencies in the
United States have determined that usedUnited States have determined that used
engine oil can be carcinogenic and canengine oil can be carcinogenic and can
cause reproducause reproductive toxicityctive toxicity. . AvoAvoid inhala-id inhala-
tion of vapors, ingestion and prolongedtion of vapors, ingestion and prolonged
contact with used engine oil.contact with used engine oil.
CAUTIONS:CAUTIONS:
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Dispose of oil and filter in accordance withDispose of oil and filter in accordance with
federal and federal and local regulationlocal regulations.s.
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Do not use a strap wrench to tighten the oilDo not use a strap wrench to tighten the oil
filterfilter. . MechaniMechanical over-tightcal over-tightening mayening may
distort the threads or damage the filterdistort the threads or damage the filter
gasket.gasket.
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Never operate the engine with the oil levelNever operate the engine with the oil level
below the ADD mark or above the FULL markbelow the ADD mark or above the FULL mark
on the oil dipstick.on the oil dipstick.
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Do not use excessive amounts of startingDo not use excessive amounts of starting
fluid whfluid when startinen starting the enging the engine. e. The use ofThe use of
too much starting fluid will cause enginetoo much starting fluid will cause engine
damage.damage.
1. 1. OperaOperate the engite the engine until tne until the watehe water tempr tempera-era-
ture reaches 140ture reaches 140˚˚F and then shut off theF and then shut off the
engine.engine.
2. 2. PlacPlace a suitabe a suitable contle container uainer under the drnder the drain plugain plug
of the oil pan. of the oil pan. RemRemove the draiove the drain plug andn plug and
washer to drwasher to drain the oilain the oil. . Replace wReplace washer ifasher if
damaged.damaged.
3. 3. When the When the oil has oil has completelcompletely draiy drained, reined, reinstallnstall
the washthe washer and draier and drain plug. n plug. Apply a torApply a torque ofque of
65 ft-lbs of torque to tighten the drain plug.65 ft-lbs of torque to tighten the drain plug.
4. 4. Unscrew Unscrew the spin-the spin-off toff type oil ype oil filter filter (see(see
IllustrIllustration 1-1). ation 1-1). It should be possiIt should be possible toble to
unscrew the oil filter by hand; however, a bandunscrew the oil filter by hand; however, a band
type filter wrench may be used if necessary.type filter wrench may be used if necessary.
Discard the used oil filter.Discard the used oil filter.
5. 5. CleClean the area on the fian the area on the filtelter base thar base that wilt will con-l con-
tact the gasket on the new oil filter.tact the gasket on the new oil filter.
6. 6. FilFill the new fil the new filter wlter with clith clean engiean engine oilne oil
before before installinstallation.ation.
7. 7. Apply a liApply a light filght film of engim of engine oil on the gasne oil on the gasket ofket of
the new filterthe new filter. . Screw the new fiScrew the new filter onto thelter onto the
filter base until the gasket comes in contactfilter base until the gasket comes in contact
with the filter base and then tighten filter 1/2 towith the filter base and then tighten filter 1/2 to
3/4 turn by hand only.3/4 turn by hand only.
8. 8. RemRemove the oil fiove the oil fill cap and filll cap and fill crankl crankcascase withe with
oil to the FULL mark on the oil dipstick (seeoil to the FULL mark on the oil dipstick (see
Illustration 1-1).Illustration 1-1).
9. 9. StarStart the t the enginengine and ae and allow llow to idto idle. le. VisVisualluallyy
check the drain plug and oil filter for leaks.check the drain plug and oil filter for leaks.
10.10. Shut down the engine and wait approxShut down the engine and wait approximatelimatelyy
5 minutes for the oil to drain back into the oil5 minutes for the oil to drain back into the oil
pan. pan. When the enginWhen the engine has cooled, rece has cooled, recheckheck
the oil level and add oil as necessary to bringthe oil level and add oil as necessary to bring
the oil level to the FULL mark on the oil dip-the oil level to the FULL mark on the oil dip-
stick.stick.
IllustIllustration 1-2. ration 1-2. DrivDrive Belt Inspectie Belt Inspectionon
Drive BeltsDrive Belts(Illustration 1-2)(Illustration 1-2).. Visually inspect theVisually inspect the
drive belts dailydrive belts daily. . Check the belt for intersectiCheck the belt for intersectingng
crackcracks. s. TrTransverse cracansverse cracks (acrosks (across the belt width)s the belt width)
are acceptablare acceptable. e. Longitudinal cLongitudinal cracks (racks (directidirection ofon of
belt length) that intersect with transverse cracksbelt length) that intersect with transverse cracks
are not accare not acceptable. eptable. Replace the belReplace the belt if belt it if belt iss
frayed or has piecfrayed or has pieces of materies of material missal missing. ing. AdjustAdjust
drive belts that have a glazed or shiny surfacedrive belts that have a glazed or shiny surface
which indicwhich indicates belt slippage. ates belt slippage. CorrecCorrectly instaltly installedled
and tensioned belts will show even pulley and beltand tensioned belts will show even pulley and belt
wearwear. . After instalAfter installation of a new belt, check thelation of a new belt, check the
tension and adjust if necessary.tension and adjust if necessary.
Belt damage can be caused by:Belt damage can be caused by:
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Incorrect tensionIncorrect tension
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Incorrect size or lengthIncorrect size or length
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Pulley misalignment Pulley misalignment
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Incorrect installation Incorrect installation
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Severe operating environmentSevere operating environment
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Oil or grease on the beltsOil or grease on the belts
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