Briggs & Stratton FB13250BS manual Troubleshooting, Adjustment & Service

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Troubleshooting, Adjustment & Service

Troubleshooting Cont.

Blade will not engage.	1.	Blade clutch rod too loose.	See Blade Clutch Adjustment Section.
	2.	Blade belt worn or broken.	Turn off engine and inspect belt. Adjust or
			replace as required.
	3.	Over-stretched or broken spring	Turn off engine and inspect spring. Replace
		on blade clutch rod.	as needed.
	4.	Worn blade clutch.	Replace clutch.

Blade will not disengage or	1.	Blade clutch rod adjustment	See Blade Clutch Adjustment Section
Blade stop time over 5 seconds.		too tight or brake worn.
	2.	Broken or jammed blade clutch.	Replace clutch.

Mower drive belt slips.	1.	Clutch is out of adjustment.	See Adjustments Section.
	2.	Pulleys or belt greasy or oily.	Clean as required.
	3.	Belt stretched or worn.	Replace with new belt.
	4.	Idler pulley out of adjustment.	See Adjustments Section.

Mower cut is uneven.	1.	Mower not leveled properly.	See Mower Adjustment.
	2.	Mower tires not inflated equally	See Maintenance Section.
		or properly.

Mower cut is rough looking.	1.	Engine speed too slow.	Set to full throttle.
	2.	Ground speed too fast.	Slow down.
	3.	Blades are dull.	Replace blade. See Mower Blade Service.
	4.	Mower drive belt slipping	Clean or replace belt as necessary
		because it is oily or worn.
	5.	Check PTO Adjustment.	See Adjustments Section.
	6.	Blade not properly fastened	See Servicing the Mower Blades.
		to arbor.
	7.	Blade screw is loose.	Turn off engine and tighten blade screw.

Excessive mower vibration.	1.	Blade mounting screw is loose.	Tighten to 233 ft.lbs. (315 N.m.).
	2.	Mower blade, arbor, or pulleys	Check and replace as necessary.
		are bent.
	3.	Mower blade is out of balance.	Remove and balance blade. See Servicing the
			Mower Blades.
	4.	Belt installed incorrectly.	Reinstall Correctly.
	5.	Foreign objects caught on or	Turn off engine and remove foreign materials
		wrapped around blade.	from around blade.

Excessive belt wear or breakage.	1.	Bent or rough pulleys.	Repair or replace.
	2.	Using incorrect belt.	Replace with correct belt.

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Contents OPERATOR’S Manual Mfg. No Model No DescriptionTable of Contents General Operation Safe Operation Practices for WALK-BEHIND MowersStatement of Usage Safety Rules and Information ServiceSlope Operation ChildrenSafety Rules & Information Safety DecalsDecal Warning Decal Engine Throttle ControlDecal Danger Dismemberment Decal Danger Flying ObjectsFeatures & Controls Control FunctionsStarting the Engine Engaging the TransmissionBefore Starting Engine To Start EngineTo Propel Unit Forward Operating the MowerTo Propel Unit In Reverse ENGAGING/DISENGAGING the Cutting Blade To Disengage Cutting BladeTo Adjust Cutting Height StorageRegular Maintenance Service Interval Every 25 HoursLubrication Lubricate Rear Axle ShaftsRegular Maintenance Battery ServiceCleaning the Battery and Cables 9HP Models Cleaning the Battery and Cables All Models Except 9HPServicing the Mower Blades Removing the BladeTroubleshooting Adjustment, & Service TroubleshootingTroubleshooting, Adjustment & Service TroubleshootingTroubleshooting, Adjustment, & Service Travel Control AdjustmentSerial Number Serial Number 012003001-UpBlade Clutch Adjustment Shut off engine before attempting this adjustment procedureBlade Brake Adjustment Mower Belt AdjustmentFor S/N 0 Traction Drive Belt AdjustmentFor S/N 071601076 up Troubleshooting, Adjustment & Service Mower Belt ReplacementSpecifications Parts & AccessoriesReplacement Parts Maintenance Items