Fumes and gases

• Pages: 19-19

Construction

11.

Fumes and gases

11.1.

Exhaust system

11.1.1.

Tractor exhaust pipes should—

(a) be so located and directed as to prevent an accumulation of

harmful gases and fumes around the driver or any passenger;

(b) discharge at least

1

metre above the operator's seat; provided

that if the tractor is fitted with a cab, the level of dis-

charge of the exhaust pipe should be at least as high as the

roof of the cab;

(c) be equipped with an approved spark arrestor; and

(d) be shielded at exposed points where the operator could come

into contact with hot parts of the system.

11.2.

Cooling system

11.2.1.

The air flow through the cooling system should be

so arranged as to avoid hazards to the operator.

12.

Brakes

12.1.

Service brakes

12.1.1.

Tractors should be equipped with brakes that will

stop the tractor under the heaviest load that it can haul on any

gradient and in any operating condition.

12.1.2.

Apart from hydrostatic transmissions only drum

or disc brakes should be used as service brakes.

12.1.3.

(1) Unless a third pedal is provided that acts on both

wheels

jointly, provision should be made for coupling the separate

left and right wheel brakes.

(2) The coupling pedal, if any, should be on the left of the

brake pedals.

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