Hydraulic Brake System - Toro 500 EFI Service Manual

Hydraulic Brake System


NOTE: This ROV is equipped with hydraulic brakes
at all four wheels.
CHECKING/BLEEDING
The hydraulic brake system has been filled and bled at
the factory.
1. With the master cylinder in a level position, check
the fluid level in the reservoir. If the level in the res-
ervoir is not above the MIN, add DOT 4 brake fluid.
2. Depress the brake pedal several times to check for a firm
brake. If the brake is not firm, the system must be bled.
To bleed the brake system, use the following procedure.
A. Remove the cover and fill the reservoir with DOT
4 Brake Fluid; then install and secure the cover.
B. Slowly depress the brake pedal several times.
C. Remove the protective cap, install one end of a
clear hose onto the RIGHT REAR (700) or REAR
DRIVELINE (500) bleeder screw, and direct the
other end into a container; then while holding
slight pressure on the brake pedal, open the
bleeder screw and watch for air bubbles. Close the
bleeder screw before releasing the brake pedal.
Repeat this procedure until no air bubbles are
present. Repeat B and C for the rear left.

NOTE: During the bleeding procedure, watch the
PR095
reservoir very closely to make sure there is always a
sufficient amount of brake fluid. When the level falls
below MIN, refill the reservoir before the bleeding
procedure is continued. Failure to maintain a suffi-
cient amount of fluid in the reservoir will result in air
in the system.
D. At this point, perform steps B and C on the REAR
E. Repeat steps B and C until the brake pedal is firm.
3. Carefully check the entire hydraulic brake system to
ensure all hose connections are tight, the bleed
screws are tight, the protective caps are installed, and
no leakage is present.
This hydraulic brake system is designed to use DOT 4
brake fluid only. If brake fluid must be added, care must be
taken as brake fluid is very corrosive to painted surfaces.
INSPECTING HOSES
Carefully inspect the hydraulic brake hoses for cracks or
other damage. If found, the brake hoses must be replaced.
REAR 500
HDX236A
LEFT bleeder screw (700 only); then move to the
FRONT RIGHT bleeder screw and follow the
same procedure. Finally, complete the procedure
on the FRONT LEFT bleeder screw.
CAUTION
REAR 700
AF637D
FRONT
PR377C
15