Universal Joints - Toro 500 EFI Service Manual

8. Fill the reservoir; then bleed the brake system (see
Periodic Maintenance - Hydraulic Brake System).
! WARNING
Never use brake fluid from an open container or reuse
brake fluid. Moisture-contaminated brake fluid could
cause vapor build-up (expansion) during hard braking
resulting in greatly increased stopping distance or loss
of control leading to injury or death.
9. Install the wheel; then using a crisscross pattern,
tighten the wheel nuts in 27 N-m (20 ft-lb) incre-
ments to the final torque shown in the table below.
Steel Wheel
Aluminum Wheel (Black Nuts)
Aluminum Wheel (Chrome Nuts)
10. Remove the vehicle from the support stand and ver-
ify brake operation.
MASTER CYLINDER ASSEMBLY

NOTE: The master cylinder is a non-serviceable
component; it must be replaced as an assembly.
Removing
1. Slide a piece of flexible tubing over one of the wheel
bleeder valves and direct the other end into a con-
tainer. Remove the reservoir cover; then open the
bleeder valve. Allow the brake fluid to drain until the
reservoir is empty.
2. Remove the cotter pin and pivot pin from the yoke;
then remove two cap screws and flange nuts securing
the master cylinder assembly to the frame.
54 N-m (40 ft-lb)
3. Remove the oil bolt securing the banjo-fittings to the
80 N-m (60 ft-lb)
master cylinder; then remove the master cylinder.
108 N-m (80 ft-lb)
Discard the three crush washers.
Brake fluid is highly corrosive. Do not spill brake fluid
on any surface of the vehicle.
Inspecting
1. Inspect the master cylinder push rod and clevis for
wear, bending, or elongation of clevis holes.
2. Inspect the push rod boot for tears or deterioration.
3. Inspect the reservoir for cracks and leakage.
4. Inspect the brake hose for cracks and deterioration
and the condition of the banjo-fittings.
Installing
1. Place the master cylinder into position; then using
three new crush washers, secure the two banjo-fit-
tings to the master cylinder. Tighten to 20 ft-lb.
2. Secure the master cylinder assembly to the frame
with two cap screws and two flange nuts. Tighten to
25 ft-lb.
3. Install the pivot pin and secure with a new cotter pin.
4. Fill the master cylinder and bleed the brake system
(see Hydraulic Brake System in Periodic Mainte-
nance).
AF637D
REMOVING

NOTE: The universal joints can be accessed by
removing the belly panel. To remove the belly panel,
see the Steering/Frame/Controls section.
1. Support the vehicle on suitable jack stands elevated
high enough to allow working from the underside of
the vehicle.
2. To aid in installing, match mark drive-line compo-
nents prior to removing.
PR338
CAUTION

Universal Joints

PR336
167