Simplicity 300 Series manual Troubleshooting, Adjustment, & Service, Tractor Troubleshooting

Troubleshooting, Adjustment, & Service

Tractor Troubleshooting Cont.

Tractor drive belt slips.	1.	Clutch/brake is out of adjustment.
	2.	Pulleys or belt greasy or oily.
	3.	Belt stretched or worn.
	4.	Idler pulley pivot bracket
		“frozen” in declutched position.

See Adjustments Section. Clean as required. Replace with new belt.

Remove idler pulley bracket, clean and lubricate.

Brake will not hold.	1.	Brake is incorrectly adjusted.	See Brake Adjustment.
	2.	Internal brake worn.	See your dealer.
Tractor steers hard or	1.	Steering linkage is loose.	Check and tighten any loose connections.
handles poorly.			See Steering Gear Adjustment.
	2.	Improper tire inflation.	Check and correct.
	3.	Front wheel spindle	Grease spindles. See Lubricating the
		bearings dry.	Tractor.

TROUBLESHOOTING THE MOWER

PROBLEM	CAUSE		REMEDY
Mower will not raise.	1.	Lift linkage not properly attached	Attach or repair.
		or damaged.
Mower cut is uneven.	1.	Mower not leveled properly.	See Mower Adjustment.
	2.	Tractor tires not inflated	See Maintenance Section.
		equally 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.	Sharpen or replace blades.
			See Mower Blade Service.
	4.	Mower drive belt slipping	Clean or replace belt as necessary.
		because it is oily or worn.
	5.	Check PTO (Electric Clutch)	See Adjustments Section.
		Adjustment.
	6.	Blades not properly fastened	See Servicing the Mower Blades.
		to arbors.
Engine stalls easily with	1.	Engine speed too slow.	Set to full throttle.
mower engaged.	2.	Ground speed too fast.	Slow down.
	3.	Carburetor improperly adjusted.	See Engine Manual.
	4.	Cutting height set too low.	Cut tall grass at maximum cutting
			height during first pass.
	5.	Discharge chute jamming	Cut grass with discharge pointing toward
		with cut grass.	previously cut area.
	6.	Engine not up to operating	Run engine for several minutes to warm-up.
		temperature.
	7.	Starting mower in tall grass.	Start the mower in a cleared area.
Excessive mower vibration.	1.	Blade mounting screws	Tighten to 45-55 ft.lbs. (61-75 N.m.).
		are loose.
	2.	Mower blades, arbors,	Check and replace as necessary.
		or pulleys are bent.
	3.	Mower blades are out	Remove, sharpen, and balance blades.
		of balance.	See Servicing the Mower Blades.
	4.	Belt installed incorrectly.	Reinstall Correctly.
Excessive belt wear or breakage.	1.	Bent or rough pulleys.	Repair or replace.
	2.	Using incorrect belt.	Replace with correct belt.
Mower drive belt slips	1.	Idler pulley spring broken or not	Repair or replace as needed.
or fails to drive.		properly attached.
	2.	Belt stops out of adjustment.	Check belt stops.
	3.	Mower drive belt broken.	Replace drive belt.
	4.	PTO clutch out of adjustment.	Adjust PTO clutch.
Mower blades collide (40” Mower).	1.	Blade shear pin broken.	Replace shear pin.

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