Ezgo 605586 Repair And Service Manual page 143

Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notes, Cautions and Warnings.
Dry Paved Surface
Accelerate To Maximum
Level Ground Speed
Latch
Parking Brake
and Take Foot
Off Pedal
Acceptable
Stopping
4 ft. (1.2 m)
Distance
Fig. 13 Periodic Brake Performance Test
Over time, a subtle loss of performance may take place; there-
fore, it is important to establish the standard with a new vehi-
cle.
Drive the vehicle at maximum speed on a flat, dry, clean,
paved surface (Ref. Fig. 13 on Page M-11). Quickly
depress the brake pedal to latch the parking brake at the
line or marker in the test area and remove foot from
Line or Marker
Line or Marker
Normal Range of
Stopping Distance
Any vehicles that stop
more than 4 ft. (1.2 m)
beyond the Acceptable
Stopping Distance or
pulls to one side should
be removed from service
and inspected by a
qualified mechanic
Repair and Service Manual
MECHANICAL BRAKES
pedal. The vehicle should stop aggressively. The wheel
brakes may or may not lock. Observe the vehicle stop-
ping location or measure the vehicle stopping distance
from the point at which the brakes were latched. The
vehicle should stop within the "normal" range of stopping
distances. If the vehicle stops more than 4 ft. (1.2 m)
beyond the acceptable stopping distance or pulls to one
side, the vehicle has failed the test.
Repeat test two more times.
If the vehicle fails to pass two of three Periodic Brake
Performance Tests, perform the Aggressive Stop Test 10
times as described below, then repeat the Periodic
Brake Performance Test three more times (second set of
three).
If the vehicle passes two of three Periodic Brake Perfor-
mance Tests, check that the clevis pins at the brake
levers are loose. If they are loose, return vehicle to ser-
vice. If they are tight, adjust free travel. "Adjusting Brake
Pedal Free Travel" on Page M 14 Then repeat the Periodic
Brake Performance Tests. If vehicle fails, remove from
service and refer to 'Wheel Brake Inspection', to evalu-
ate the reason for failure.
Aggressive Stop Test
To prevent serious injury or death, all brake
tests must be done in a safe location with
regard for the safety of all personnel.
Always conduct a visual inspection and evalu-
ate pedal travel before operating a vehicle to
verify some braking function is present.
The purpose of this test is to attempt to fully expand and
release the brake adjusters on a vehicle which has failed
the first set of Periodic Brake Performance Tests. It is
important that the technician/mechanic exercise care
and perform the test in a non-congested area with
regard for the safety of all personnel.
To perform an Aggressive Stop Test, equally load both
sides of the vehicle (Ref. Fig. 14 on Page M-12) and
apply maximum force and travel to the service brake
pedal while moving. Do not latch the parking brake. Do
this a total of 10 times with the first few at slow speed. If
brake function is adequate or improves, increase speed
for the remaining tests. Before the end of the tests, both
wheels should lock at approximately the same time and
slide straight.
B
B
Page M-11