Performance Adjustments; Engine Rpm Check And Adjustment; Deck Corner Ball Wheel Roller Settings; Deck Center Anti-Scalp Roller Settings - Cub Cadet Commercial Tank S6031 Operator's And Service Manual

Performance Adjustments

A. Engine RPM Check and Adjustment
Description High RPM Spec.
31 & 37 Kawasaki
NOTE: RPM Specs. are for free running engines under no load.
1. Verify that the speed control pedals are in the
neutral position, the parking brake is on, and the
PTO drive is disengaged.
2. Start the mower and let it run at approximately
half throttle for 3-5 minutes to bring the engine
up to operating temperature.
3. Locate the Hour Meter/Tachometer/ Service
Minder display on the right hand operator con-
trol panel. (See Fig.3 on page 10 of the manual)
This display defaults to Tachometer mode when
engine is running.
4. Move the throttle lever to the high speed posi-
tion and note the RPM reading on the display.
5. Move the throttle lever back to the low speed
position and again note the displayed RPM's.
6. Compare these noted RPM readings to the
specifications in Table 1, for the engine that is
on your mower.
7. If the readings do not correspond to the ranges
in the table, refer to the engine owner's manual
for the proper adjustment procedures.
8. If adjustments per the engine operator's manual
do not result in proper RPM readings, contact
your service technician.
9. Note: The throttle cable sheath may shrink or
slip over time, changing the relationship
between the throttle lever on the left hand oper-
ator control panel and the throttle arm on the
engine. To readjust the throttle cable:
a. Make sure the engine is off, and the speed
control pedal is in the neutral position. Set
the parking brake, and disconnect and
ground both of the spark plug wires.
b. Locate and loosen the cable clamp on the
engine throttle plate.
c. Place the operator's throttle lever to the high
speed position and then slide the cable
through the clamp until the throttle arm is in
the full throttle position. (Ref. Engine owner's
manual)
d. Tighten the cable clamp.
e. Move the operator's throttle lever between
high and low speed and verify that the
engine throttle arm also moves through it's
full range of motion.
f. Repeat as required to obtain proper throttle
adjustment.
g. Verify proper throttle adjustment by checking
RPM readings as outlined above.
Low RPM Spec.
3600 +/-50 1550 +/-100
B. Deck Corner Ball Wheel Roller Settings
1. Matching the set heights of the ball rollers on
the front and the four corners of the mower deck
to the desired cut height will prevent edge scalp-
ing and minimize any side-to-side variance in
cut height.
2. There are four height adjustment holes in the
bracket that mount the ball rollers to the deck.
a. Use the top set of holes for cut heights of 1 to
1-1/2 inches.
b. Use the second set of holes for a 2 - 2-1/2 inch
cut height.
c. Use the 3rd set of holes for 3 - 3-1/2 inch cut
height.
d. Use the bottom set of holes for cut heights of 4
inches or higher.
C. Deck Center Anti-Scalp Roller Settings
1. The rear rollers help prevent the scalping of high
spots and uneven terrain across the center sec-
tion of the deck.
2. The rollers on the rear of the deck can be
adjusted downward one inch.
a. Lowering the roller will increase the striping
effect left behind the mower.
b. This positioning of the rear roller will also
help to filter the mulched grass clippings into
the turf.
c. Roller should not be lowered if the cut height
is set at 2-1/2 inches or lower.
D. Steering Wheel Adjustment
1. Proper steering wheel and seat adjustment will
result in the following:
a. In the neutral position with hands on the
steering wheel,
1. Operator's upper arms should be relaxed
and approximately vertical.
2. Operator's forearms should be approxi-
mately horizontal.
3. Operator's back should stay in contact with
the seat back.
4. Steering column should not contact opera-
tor's legs.
2. The steering column can be repositioned forward/
downward or rearward/upward.
3. Set the seat to the preferred operating position.
a. Adjustment lever is located under the front
edge of the seat.
b. The seat has over 8 inches of front-to-rear
adjustment available.
4. Check the results of any adjustments to the
conditions described in section a, above.
Repeat any adjustment procedures as required
until all conditions are met.
E.Deck leveling Procedure
1. Park the mower on a flat paved surface, engage
the parking brake, shut off the engine, remove the
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