Porsche 911 2020, Руководство пользователя

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Test Stand Measurement
256
Test Stand Measurement
Carrying out test stand
measurements
WARNING
Inhalation of toxic ex-
haust gases
Risk of serious or fatal injury due to inhalation of
toxic exhaust gases.
Exhaust gas contains colorless and odorless carbon
monoxide, which is toxic even in low concentrations.
e
Perform work with the engine running only out-
doors or with suitable extraction systems for the
exhaust gases.
WARNING
Inadequate securing of
vehicle
An unsecured or incorrectly secured vehicle can
move unintentionally or tip or fall off lifting equip-
ment such as a jack or lifting platform. This can
cause serious injuries and damage.
e Raise the vehicle using a jack on a solid and flat
surface only.
e Raise the vehicle only at the prescribed jacking
points on the vehicle underbody.
e Always place the vehicle on solid supports when
working under the vehicle. The vehicle jack is not
suitable for this purpose.
e
Never start the engine when the vehicle is raised.
Engine vibrations can cause the vehicle to fall.
Power measurement
Porsche does not authorize power measurements on
roller-type test stands.
Carrying out brake tests
e
Brake tests must only be performed on roller-
type test stands.
The following limits must not be exceeded:
– Test speed 4.7 mph (7.5 km/h)
– Test duration 20 seconds
Carrying out electric parking brake tests
e Electric parking brake tests on the brake test
stand must only be performed with the ignition
switched on and with the manual gearshift lever
in neutral or with the double clutch transmis-
sion (PDK) in operating mode N (transmission
parking brake not activated) .
The vehicle switches automatically to the brake test
stand mode in which the electric parking brake can
be tested. A message appears on the instrument
cluster.