Maintaining Your Lawn Tractor - White Outdoor ZTT-1850 Operator's Manual

Parking Brake Adjustment
Brakes are subject to wear during normal use and
should be checked periodically for adjustment. To
determine if the parking brake is in need of adjustment:
• Engage the parking brake.
• Open both transmission bypass valves as
instructed on page 17 before attempting to push the
tractor forward.
NOTE:
There will be some resistance from the
transmissions even when the bypass valves are open.
If the tractor can roll relatively freely, adjust the parking
brake as follows:
WARNING:
brakes while the engine is running. Always
turn off blades/PTO, move both control
handles into neutral position, stop engine and
remove key before dismounting.
• Move the tractor to a smooth, flat surface.
• Chock the left, rear tire and place the parking brake
lever in the disengaged position.
• Remove the hubcap from the right, rear wheel.
• Loosen, but do NOT remove, the hex screw which
secures the wheel assembly to the transmission.
• Jack the tractor up off the ground and stabilize the
right, rear portion of it with a jackstand.
• Unthread the hex screw loosened earlier and
remove the wheel assembly from the tractor.
• Locate the cotter pin which secures a castle nut to
the transmission's brake arm. See Figure 16.
• Carefully remove the cotter pin from the castle nut
and transmission axle.
• Discard the cotter pin
SECTION 8: MAINTAINING YOUR LAWN TRACTOR
WARNING:
maintenance or repairs, always turn off
blades/PTO, move both control handles into
neutral position, stop engine and remove key
before dismounting.
Engine
Refer to the Briggs & Stratton Operator/Owner
Manual for engine maintenance instructions.
Check engine oil level before each use as instructed in
the Briggs & Stratton Operator/Owner Manual packed
with your unit. Read and follow instructions carefully.
Changing Engine Oil
• Unscrew oil fill cap and remove dipstick from the oil
fill tube. See Figure 17.
Never attempt to adjust the
Before performing
Right-hand
Transmission
• Tighten the castle nut 11 inch-pounds, or until the
brake arm has minimal up-and-down movement
when you attempt by hand to pivot it.
• Back the castle nut off 1/3 turn before inserting a
new cotter pin (Part Number 714-0507) to secure it
in place.
• Remount the tractor's wheel assembly and repeat
the previous steps on the left side of the tractor.
Be certain to torque the hex screw which
IMPORTANT:
secures the wheel assembly to the transmission to
between 25 foot-pounds and 42 foot-pounds.
• Re-engage the parking brake and test it by
attempting to push the tractor forward.
• If the tractor's parking brake should need further
adjustment, see your White Outdoor dealer.
• Pop open the protective cap on the end of the oil
any
drain valve to expose the drain port. See Figure 17.
• Push the drain hose (packed with this manual) onto
the drain port. Route the opposite end of the hose
into an appropriate oil collection container with a
capacity great enough to collect the used oil
(approximately 48 oz. on single-cylinder engines
and 64 oz. on twin-cylinder engines).
• Push the oil drain valve in slightly, then rotate
counterclockwise and pull outward to begin
draining oil. See Figure 17.
• Service the oil filter (if so equipped) as instructed
in the separate Briggs & Stratton Operator/Owner
Manual packed with your unit.
Perform the above steps in the opposite order after oil
has finished draining.
20
Castle Nut
Brake Arm
Figure 16