Extra equipment and
|fire extinguisher is fully charged and
label shows that it has not expired
|an approved warning device is present|
|first aid kit is fully equipped|
|all necessary documentation is in the
vehicle. This could include the vehicle
registration and valid insurance, Vehicle
Inspection Program (VIP) inspection
certificate, pre-trip inspection form,
safety fitness certificate, permits,
logbook, are valid and any other
|all personal protective equipment that
is required before going on a work site
|tools are properly secured|
|spare light bulbs, fuses, belts and other
required parts are present.
Trip air brake
The following information is a guide only.
As in the trip inspection of the vehicle,
the driver plays an important role in
maintaining the air brake unit. A driver
must be alert and know how the air brake
system works. Any brake problems must
be reported so the necessary repairs can
• Chock the wheels with the vehicle on
• Perform a visual inspection of the air
Step 2 (Tractor protection
|Leave the engine off with the key in the
|Push the trailer air supply valve (red
button); the park control valve (yellow
button) should be pulled.
|Disconnect both air lines to the trailer.|
|Trailer air supply valve should “pop” out
at 40 - 60 PSI (276 - 414 kPa) or higher.
|Low air pressure warning should come
on by 60 PSI (414 kPa).
|Apply and hold foot or hand valve; no
air should leak from the open trailer
Step 3 (Park control valve)
|Push park control valve (yellow button).|
|Pump the foot valve.|
|Park control valve should “pop” out at
20 - 45 PSI (138 - 311 kPa).
|Reconnect both air lines to the trailer.|
Step 4 (Supply circuit)
|Start the engine and run at fast idle
around 1200 RPM.
|Perform compressor build-up test; 50
to 90 PSI (345 to 621 kPa) within
|Low air pressure warning light should
go out by 60 PSI (414 kPa).
|Build air pressure to system maximum
to confirm governor cut-out at
120 - 135 PSI (828 - 931 kPa).
|Pump service brakes to reduce air
pressure until governor cuts in. Confirm
cut-in is 20 - 25 PSI (138 - 172 kPa)
less than cut-out pressure.