GMC T-Series 1999, Руководство пользователя, Страница: 65 / 344

yellow blue
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If your vehicle has air brakes, you may have
these controls.
Pulling the yellow button out applies the parking brake.
The PARK BRAKE light will not come on when the air
parking brake is applied.
Vehicles built for use as tractors and/or towing vehicles
may also have these controls. They look like this:
To charge a trailer’s air brake system:
D Move your tractor into the proper position. Apply the
parking brake by pulling the SYSTEM PARK
(yellow) knob out.
D Hook up the trailer air system properly.
D Get into the tractor. Push and hold down the regular
brake pedal.
D Push in both the SYSTEM PARK (yellow) and the
TRAILER AIR SUPPLY (red) knobs. This will
charge your trailer’s air system.