Service; Handle Adjustment; Belt Replacement - Cub Cadet 450 Serie Manual Del Operador

Service

WARNING! Disconnect the spark plug
wire and ground it against the engine
before performing any maintenance or
repairs.
Maintenance
Engine
Refer to the separate Engine Operator's Manual for
engine maintenance instructions.
Tires
Recommended operating tire pressure is
approximately 14 p.s.i. on 14 inch tires and 20 p.s.i.
on 16 inch tires. (Check the sidewall of the tire for the
manufacturer's recommended pressure). Maximum
tire pressure under any circumstances is 30 p.s.i.
Equal tire pressure should be maintained on both
tires.
WARNING! Excessive pressure (over 30
p.s.i.) when seating beads may cause the
tire/rim assembly to burst with force
sufficient to cause serious injury.
Lubrication
Transmission
The transmission is pre-lubricated and sealed at
the factory. It requires no checking unless the
transmission is disassembled. To fill with grease, lay
the right half of the transmission on its side, add 22
ounces of Benalene 920 grease, and assemble the left
half to it. This grease can be obtained at your nearest
authorized dealer by ordering part number 737-0300
or calling the Customer Support number on page 2.
Clutch Handle
Lubricate the pivot point on the clutch handle and
the cable at least once a season with light oil. The
control must operate freely in both directions.
Pivot Points
Lubricate all the pivot points and linkages at least
once a season with light oil.
Tine Shafts
Remove the tine assemblies and lubricate the tine
shafts at least once a season.
Wheel Shafts
Remove the wheel assemblies and lubricate the axle
shafts at least once a season.
Adjustments
WARNING! Never attempt to make any
adjustments while the engine is running,
except where specified in the Operator's
Manual.
Engine Adjustment
Refer to the separate Engine Operator's Manual for
engine adjustment instructions.

Handle Adjustment

The handle may be adjusted to the desired height.
Refer to the Controls & Operation Section for details.
8
Cable Adjustment
See the Assembly & Set-Up section for the primary
cable adjustment, see the Service section for the
secondary adjustment.
Idler Pulley Rod
After the belt tension has been adjusted, if the belt
is excessively stretched, you may need to adjust the
idler pulley rod. This can be checked easily.
With the engine off and the clutch control bail
disengaged, shift the gear selection handle to each
forward mode. If the indicator bracket touches
the idler pulley rod with the clutch control bail
disengaged, then an adjustment is necessary.
1. Disconnect and ground the spark plug wire
against the engine.
2. Remove the belt cover as described under Belt
Replacement in the Service section.
3. Remove the hairpin clip and spring washer
from the idler pulley rod. See Figure 5-1.
Rubber Washer
Hairpin Clip
Idler Puller Rod
Figure 5-1
4. Move the idler pulley rod to the lower hole in the
idler bracket.
5. Replace the spring washer and hairpin clip.
6. Check the clearance of the idler pulley rod
to the indicator bracket by shifting to each
forward mode.
NOTE: This Operator's Manual covers several models.
Garden tiller features may vary by model. Not all
features in this manual are applicable to all garden
tiller models and the garden tiller depicted may
differ from yours.

Belt Replacement

Your tiller has been engineered with a belt designed
for long life and optimal performance. It should never
be replaced with a non-OEM belt. Order all belts
through an authorized service dealer or by contacting
Customer Support as instructed on page 2.
1. Disconnect and ground the spark plug wire
against the engine.
2. Remove the belt cover from the left side of the
tiller by removing the two screws from the top
of the belt cover. See Figure 5-2.
Screw
3. Remove the nut and washer from the front
Control Rod
side of the belt cover. Remove the hex head
screw at the back of the cover. See Figure 5-2.
4. Remove the belt keeper assembly located
Indicator Bracket
behind the engine pulley by removing the two
hex bolts and lock washers. See Figure 5-3.
Belt Keeper
Engine Pulley
5. Remove the idler pulley by removing the bolt
and nut. See Figure 5-3.
6. Remove the old belt and install the new belt.
Follow the instructions in reverse order to
re-install the belt keeper and belt cover. See
Figure 5-3.
NOTE: Upon reassembly, make certain the belt
is routed over the idler pulley and inside of
belt keepers by the engine pulley.
5
Screws
Nut and washer
Figure 5-2
Belt
Idler Pulley
Figure 5-3