Troubleshooting, Adjustment & Service

Troubleshooting the Rider (Continued)

PROBLEM	CAUSE		REMEDY
Engine runs, but rider will not drive.	1. Ground speed control lever in		1.	Shift in forward or reverse.
		neutral.
	2.	Transmission	2.	Move into drive position.
		release lever in “push” position.
	3.	Belt is broken.	3.	See Drive Belt Replacement.
	4.	Drive belt slips.	4.	See problem and cause below.
	5.	Brake is not fully released.	5.	See Brake Adjustment.

Rider drive belt slips.	1. Clutch is out of adjustment.		1.	See your dealer.
	2.	Pulleys or belt greasy or oily.	2.	Clean as required.
	3.	Belt stretched or worn.	3.	Replace with correct belt.
	4.	Idler pulley pivot bracket “frozen”	4.	Remove idler pulley, clean and lubricate.
		in declutched position.

Brake will not hold.	1. Brake is incorrectly adjusted.		1.	See Brake Adjustment.
	2.	Internal brake disc on	2.	See your dealer.
		transaxle worn.

Rider steers hard or handles poorly.	1. Steering linkage is loose.		1.	Check and tighten any loose connections. See
				Steering Gear Adjustment.
	2.	Improper tire inflation.	2.	Check and correct.
	3.	Spindle bearings dry.	3.	Grease spindles. See Lubricating the rider.

TROUBLESHOOTING THE MOWER

PROBLEM	CAUSE		REMEDY
Mower will not raise.	1.	Lift cable not properly attached or	1.	Attach or repair.
		damaged.

Mower cut is uneven.	1.	Mower not leveled properly.	1.	See Mower Adjustment.
	2.	Rider tires not inflated equally	2.	See Normal Care.
		or properly.

Mower cut is rough looking.	1.	Engine speed too slow.	1.	Set to full speed.
	2.	Ground speed too fast.	2.	Set ground speed control lever at a slower
				ground speed.
	3.	Blades dull and require sharpening.	3.	See Servicing the Mower Blades.
	4.	Mower drive belt slipping.	4.	Belt oily or worn. Clean or replace belt as
				necessary.
	5.	Check PTO (Electric Clutch)	5.	Clutch may need to be adjusted.
		Adjustment.
	6.	Blades not properly fastened	6.	See Servicing the Mower Blades.
		to arbors.

Engine stalls easily with	1.	Engine speed too slow.	1.	Set for 3/4 to full throttle.
mower engaged.	2.	Ground speed too fast.	2.	Reduce ground speed.
	3.	Carburetor not adjusted properly.	3.	Adjust carburetor (See engine manual.)
	4.	Cutting height set too low when	4.	Cut tall grass at maximum cutting height
		mowing tall grass.		during first pass.
	5.	Discharge chute jamming with	5.	Cut grass with discharge pointing toward
		cut grass.		previously cut area.

Excessive mower vibration.	1.	Blade mounting screws are loose.	1.	Tighten to 45-55 ft.lbs. (61-75 N.m.).
	2.	Mower blade(s), arbors, or pulleys	2.	Check and replace as necessary.
		are bent.
	3.	Mower blade(s) out of balance.	3.	Remove, sharpen and balance blade(s).
				See Servicing the Mower Blade(s).
	4.	Belt installed incorrectly.	4.	See Belt Replacement.

Excessive belt breakage.	1.	Bent or rough pulleys.	1.	Repair or replace.
	2.	Using incorrect belt.	2.	See your dealer.

Mower drive belt slips or fails to drive.	1.	Idler pulley spring broken or not	1.	See your dealer.
		properly attached.
	2.	Mower drive belt broken.	2.	Replace.

400 Series specifications

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