Page 157 - The Central Motor Vehicles Rules, 1989

RULE 96A THE CENTRAL MOTOR VEHICLES RULES, 1989 129
1

[96A. Brakes for construction equipment vehicle
96A
(1) Construction equipment with hydrostatic transmission shall employ either
hand or foot operated hydrostatic braking system both for service and parking brake
system acting at least on two wheels on the same axle or drum.
(2) The braking system shall be of a strength capable of stopping the vehicle within
the distance specified in sub-rule (8) and of holding it at rest in all conditions, and all
such brakes shall at all times be properly conducted and maintained in efficient
condition.
(3) In every construction equipment vehicle, other than those having hydrostatic
transmission, the brakes operated by any of the means of operation shall act directly
upon the wheel or at a suitable location in the power train provided that such an action
does not discouple, disengage or isolate the braking action from the wheels.
(4) Every construction equipment vehicle manufactured on or after the commen-
cement of the Central Motor Vehicles (6th Amendment) Rules, 2000, shall have a braking
2
system whose performance shall [conform to the test and stopping distance formula as
specified in sub-rule (7)].
(5) The braking system or one of the braking systems of construction equipment
vehicle, shall be so constructed and maintained that it can effectively prevent at least
two wheels or drums from revolving when the vehicle is left unattended and it shall be
designed to be applied through hand or foot or automatically when engine is not running.
(6) In the case of construction equipment vehicles with four or more than four
wheels, the service brake shall work on at least two wheels of the vehicle.
3
[(7) The service braking system of the construction equipment vehicle shall be
capable of bringing the vehicle to a half within the stopping distance as calculated by
the formula given below, when tested in unladen condition and attachment carry
position at a speed corresponding to 80% of the designed maximum speed. The test shall
be conducted in forward direction of travel on a dry level hard road in good condition
and during the test the acceleration control or travel shall be fully released and in the
case of vehicle with manual gear shifting control, the top gear and the clutch shall be
engaged.
STOPPING DISTANCE FORMULA
2
S £0.15 V + (V /130),
Where S is the Stopping distance in metres,
V is the test speed corresponding to 80% of designed maximum speed in
km/h, Control force F £700 Newtons
Explanation : For the purposes of this sub-rule, "unladen" means the construction
equipment vehicle in travel mode without any load except the driver and another person
for the specific purpose of supervising the test and the instruments, if any:
PROVIDED that while the stopping distance formula mentioned above remain
unchanged, the construction equipment using hydrostatic transmission, the brake test
shall be performed by positioning the gear change lever to the neutral position:]]

1 Inserted vide GSR 642(E), dt. 28-7-2000, w.e.f. 28-7-2000.
2 Substituted for "conform to the relevant Indian Standards specified by the Bureau of Indian Standards"
vide GSR 116(E), dt. 27-2-2002, w.e.f. 27-8-2002.
3 Substituted, ibid.