Road/Roller Testing
Road or roller testing may be carried out for various reasons and a procedure detailing pre -
test checks, through engine starting and stopping, pre - driving checks, on - test checks to final
checks on completion of the test is given overleaf.
Unless complete vehicle performance is being checked, the full road test procedure need not
be carried out. Instead, those items particularly relevant to the system/s being checked can be
extracted.
Pre - Test Checks
WARNING: If the brake system hydraulic fluid level is low, pedal travel is
excessive or a hydraulic leak is found, do not attempt to road test the vehicle until the
reason for the low fluid level, excessive pedal travel or hydraulic leak is found and
rectified.
It is suggested that pre - test checks, and functional tests of those systems/circuits which affect
the safe and legal operations of the vehicle, such as brakes, lights and steering, should always
be carried out before the road or roller test.
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Engine oil level
•
Engine coolant level
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Tires, for correct pressure, compatible types and tread patterns, and wear within limits.
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There is sufficient fuel in the tank to complete the test.
•
All around the engine, transmission and under the vehicle for oil, coolant, hydraulic
and fuel leaks. Make a note of any apparent leaks and wipe off the surrounding areas
to make it easier to identify the extent of the leak on completion of the test.
Starting the Engine
NOTE:
On initial drive away from cold and within the first 1.5 km (1 mile), do not depress
accelerator pedal beyond half travel until the vehicle has attained a minimum speed of 25
km/h (15 miles/h). Never operate at high engine speed or with the accelerator pedal at full
travel whilst the engine is cold.
With the ignition switched off, check:
•
The handbrake is applied.
•
The gear lever is in neutral.
•
All instrument gauges (except fuel gauge) read zero.
With the ignition switched on, check:
•
Ignition controlled warning lights come on.