Cub Cadet I-Beam Style - Manual (Page 144)

5-5
5
SNOW THROWER PROBLEM FLOW CHART
MODEL YEAR 1997
600/700 Series Snow Throwers Model Year 1997
Problem: Friction wheel rubber traction disc part number 735-0243 becoming separated from between the two
side plates part number 784-5617. This problem was caused by the retooling of the side plates for
manufacturing on a progressive die. The embossed height of the side plates was .030" to .035" too
deep causing the plates to not grip the rubber friction disc properly.
Solution: Replace the rubber traction disc and torque the 6 self tapping screws to between 6 and 9 foot/lbs.
each. If the aluminum drive plate part number 656-0012A has been scored it must also be replaced.
Recheck the drive wheel cable for correct tension.
Problem: Auger welds failing prematurely on all 600/700 series snow throwers. The spokes and flytes are sepa-
rating from each other as well as from the auger tube area.
Solution: First visually verify whether the unit has been subjected to any abnormal conditions. Look for evidence
of impacts on the leading edge of each flyte. Also, check the left and right edges of the housing for evi-
dence of impact. If there is no evidence of this then you should proceed with replacing the affected
auger.
Problem: Misalignment between the engine pulley and auger pulleys on 600/700 series snow throwers. In
severe cases on 8 and 10 hp units, one of the two drive belts will roll off the rear auger pulley.
Solution: Remove the fuel from the unit. Stand the snow thrower on end and remove the left and right wheel
assemblies. Remove the bottom frame cover and remove the hardware securing the bearings to the
hex shaft. With the hex shaft loose in the housing, remove the friction wheel bearing assembly and
remove the lower drive disc spring. Flip the pressure plate up out of the way and remove the bolt and
hardware securing the pulleys. Lift the pulleys off the auger shaft and remove the pulley adapter.
Install flat washer 736-0188 behind the pulley adapter. Reassemble in reverse order and check for cor-
rect alignment and test the operation of the unit.
Problem: Reports from the field indicate that some customers with model 190-621 40" snow thrower attachment
have experienced premature drive belt failure. Investigation has revealed that excessive travel in the
lift handle latch bracket part number 703-2728A could allow the drive belt to become slack and fail pre-
maturely.
Caution: Select a firm level surface that is large enough to accommodate both the snow thrower and rider.
Engage the tractors parking brake and block the wheels.
Follow all safety instructions contained in
the owner’s manual.
Solution: Replace the existing idler extension spring with part number 732-0478 and ensure that the idler
bracket is tightened up to reduce any unwanted movement. Also make sure that the customer is not
placing the deck lift lever any further down than the fourth notch from the disengaged position. If it is,
the long drive belt will begin to whip excessively.
Check all four tires for proper inflation. Recommended tire pressure is 13 psi front and rear. 1) Raise
the rider by putting 2" wooden blocks under all four wheels. 2) Lower the blower attachment to it’s low-
est position and measure the distance between the shave plate and the floor. If the distance is less
than 1" or the shave plate is on the floor proceed to step 4. Refer to illustration no. 5-1.
3) Using 1" blocks as a guide, raise the snow thrower and put blocks between the shave plate and the
floor. Lower the snow thrower.
SNOW THROWER.fm Page 5 Wednesday, February 20, 2002 10:28 AM