Bolens 660 manual Maintainingyourlawntractor, Engine

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oTwo turns at a time, thread the adjustment ferrule toward the right, front tire to lengthen the tie rod. Or,

thread the adjustment ferrule away from the right, front tire to shorten the tie rod.

NOTE: Lengthening the tie rod increases the tractor's

front tie toeqn. Shortening the tie rod decreases the tractor's front tire toeqn.

. Reinsert the adjustment ferrule and temporarily secure it with the cotter pin removed earlier.

°Make certain the steering wheel is in position for straight-ahead travel before again taking measurements. Continue to repeat the steps above until a proper adjustment is achieved.

°Secure the tie rod to the right axle with the flat washer removed earlier and a replacement cotter pin.

IMPORTANT: Do NOT reuse the original cotter pin once it has been removed.

SECTION7: MAINTAININGYOURLAWNTRACTOR

WARNING:

Before

performing

any

. Snap the small end of oil drain sleeve onto the oit

maintenance

or repairs,

place the

deck

sump. See Figure 21.

engagement/lift lever in the BLADES STOP position, move shif_ lever into neutral position, set parking brake, stop engine and remove key to prevent unintended starting.

CleaningtheEngineAndDeck

Any fuel or oil spilled on the machine should be wiped off promptly. Do NOT allow debris to accumulate around the cooling fins of the engine or on any other part of the machine, especially the belts, pulleys and other moving parts. Clean the underside of the deck with a wisk broom, scraper or forced air after each mowing.

IMPORTANT: The use of a pressure washer or garden hose to clean your tractor is NOT recommended. It may cause damage to electrical components, spindles,

pulleys, bearings or the engine. The use of water will result in a shortened life of the tractor and reduce its

serviceability.

Engine

Refer to the Briggs & Stratton OperatodOwner

Manual (or Tecumseh engine's Owner's Manual) for engine maintenance instructions.

Check engine oil level before each use as instructed in the Briggs & Stratton Operator/Owner Manual (or Tecumseh engine's Owner's Manual) packed with your unit. Fellow the instructions carefully.

ChangingEngineOil

(modelsequippedwith an oil drain sleeve)

For draining oil from the engine'scrankcase of select modei tractors, a plastic oil drain sleeve is packed with

this Operator's Manual. To drain the oil, proceed as follows:

°Unscrew the oit fill cap and remove the dipstick from the oil fitt tube.

Oil Drain Sleeve

Figure 21

. Remove drain plug and drain oil into a suitable container with a capacity of no less than 64 oz.

. Service the oil filter (if so equipped) as instructed in the separate Briggs & Stratton Operator/Owner Manual (or Tecumseh engine's Owner's Manual) packed with your unit.

Perform the above steps in the opposite order after oil has finished draining.

. Refill the engine with new motor oil.

IMPORTANT: Refer to the Briggs & Stratton Operator/ Owner Manual (or Tecumseh engine's Owner's Manual) packed with your unit for information regarding the quantity and proper weight of motor oil.

ChangingEngineOil

(modelsequippedwith an oil drain valve)

NOTE: Depending on your tractor's engine make & model, it may be necessary to remove the tractor's side panel in order to replace the oil filter (if so equipped).

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Contents Operators Manual Engineinformation Importantsafeoperationpractices General OperationMufflerandenginebecomehotandcancausea Towing Improperperformanceandcompromisesafety Sight and Hold this Level with a Vertical Tree AttachingThe SteeringWheel Attachingthe BatteryCablesTRACTORSET-UP AttachingTheSeat GasandOilFill-up ShippingBraceRemovalIdentifyingthe MulchPlugif soequipped IgnitionIgnitionSwitch KnowyourlawntractorChokeControl ShiftLeverSpeedControlLever ParkingBrakeSafetyInterlockSystem OperatingthelawntractorBeforeStartingEngine Startingthe EngineMowing OperatingTheLawnTractorEngagingTheCuttingBlades Mulching Inch DecksMakingadjustments StandardAdjustmentSeatQuickAdjustmentSeatif soequipped KnobAdjustmentSeatif soequippedShift Knob DeckEngagementAdjustmentSettingthe OeckWheel Height on models soequipped ParkingBrakeAdjustment SpeedControlAdjustmentAssembly Disengagement RodSteeringAdjustment Ferrule Hairpin Clip Speed Control RodMaintainingyourlawntractor EngineChangingEngineOil Modelsequippedwith an oil drain sleeve ChangingEngineOil Modelsequippedwith an oil drain valveAir Cleaner Fuel Filter Spark PlugsEngine Rear WheelsService Belt Keeper Pins Deck Anti-sway RodAdjustable Deck Links Deck Anti-sway Rod CuttingDeckRemovalCuttingBlades Worn Blade Edge Wind WingTires BatteryBeltReplacement Deck Belt 38- and 42-inch Decks Deck Belts46 DeckOrive Belts Upperand Lower TransmissionATTACHMENTS& Accessories OFF-SEASONSTORAGETroubleshootingguide Possible Trouble CausesPage Page Page Manufacturers Limited Warranty For OTROn BIITIIi