![background image](http://html1.mh-extra.com/html/fairplay/zx/zx_manual_3214852077.webp)
MECHANICAL BRAKES
Read section A and B completely prior to operation or repair of golf car
F-17
The Periodic Brake Performance Test (PBPT) should be performed regularly (see Periodic Service
Schedule in the GENERAL INFORMATION AND ROUTINE MAINTENANCE section of this manual) as
an evaluation of braking system performance. It is useful as a method of identifying subtle loss of
performance over time and as part of troubleshooting a problem vehicle.
Before performing this test, inspect the brake pedal and linkage and correct any problems found
including adjusting the brake pedal free travel if required.
The purpose of this test is to compare the braking performance of the vehicle to the braking performance
of new or "known to be good" vehicles or to an established acceptable stopping distance (see below).
Actual stopping distances will be influenced by weather conditions, terrain, road surface condition, actual
vehicle weight (accessories installed) and vehicle speed. No specific braking distance can be reliably
specified. The test is conducted by latching the parking brake to eliminate different pedal pressures and
to include the affects of link age mis-adjustment, and significant changes or differences in braking
performance will be evident due to mis-adjustment.
Establish the acceptable stopping distance by testing a new or "known to be good" vehicle and recording
the stopping location or stopping distance. For fleets of vehicles, several vehicles should be tested when
new and the range of stopping locations or distances recorded.
Over time, a subtle loss of performance may take place; therefore, it is important to establish the
standard with a new vehicle.
Drive the vehicle at maximum speed on a flat, dry, clean paved surface (Ref Fig. F14). Quickly depress
the brake pedal to latch the parking brake at the line or marker in the test area and remove foot from
pedal. The vehicle should stop aggressively. The wheel brakes may or may not lock. Observe the vehicle
stopping 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.