Project: Quad Parking Brakes

Reference: S0217/VC

Last update: 19/12/2008 16:09:43

Objectives

The project objectives were:
. Source (hire) two previously used quadricycles (ages approx. 2-4 and 5-7 years) from different manufacturers with hydraulic parking brakes.

. Assess the condition and suitability of the parking brake disc/drum and linings for testing purposes and report.

. Instrument the hydraulic parking brake system to measure system pressure and the force applied to the parking brake control.

. Test the parking brake system of two previously used quadricycles to the requirements as laid down in paragraphs 2.3. and 2.4. of the European braking Directive 93/14/EEC.

. Report on the durability of hydraulically operated parking brakes fitted to quadricycles.

Description

The project involved the assessment of the durability and reliability of typical hydraulically operated parking brakes fitted to quadricycles. Although not common on quadricycles, some manufacturers fit a latch device on the hydraulic service brake allowing it to serve as a parking brake. Typical operation involves depressing the brake lever and manually activating the latch device, preventing the lever from returning to its original position thus maintaining pressure in the system.

Contractor(s)

TRL Limited
Crowthorne House, Nine Mile Ride, Wokingham, Berkshire, RG40 3GA
+44 (0)1344 773131

Contract details

Cost to the Department: £9,890.00

Actual start date: 19 February 2007

Actual completion date: 02 November 2007

Publication(s)

An Assessment of the durability and reliability of typical hydraulically operated parking brakes fitted to quadricyles
Author: Grover, CJ
Source: PPR293