Pre trip inspection.

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i believe first you turn key off after building pressure to 120 or above then relase parking brake to make sure you have air lose of no more then 3psi.in 1 minute. then apply foot brake firmly and hold and maintain no more air lose then 4 psi in 1 minute. then turn key back on and fan brake and when guage reaches approx 60 psi a warning lite and or buzzer should go off. then turn key offcontinue to fan brake to 20 to 40psi at which time brake knob should pop out. then start engine to rebuild pressure an time it from 85psi to 100 psi which should take no more then 45 seconds hope this helps thank you

 

good thread......

 

Could be... the 3psi and rebuilding the pressure was never mentioned to us. But not a bad idea

 

I believe the pretrips are different from state to state. For instance in South Carolina you pull the hood down first and check the engine. You check for puddles and conditions of hoses and no leaks from the engine or transmission. Then check the oil level, then check the coolant, then the alternator and (all) belts. then water pump, power steering pump and level. (Then close the hood)

Then you do the in cab! The in cab in South Carolina they don't want to hear...with the brakes off you should not lose more than 3 PSI in one minute part. They say that is for combination vehicles. In North Carolina they want you to mention that you won't lose more than 3 PSI in one minute.

After the in cab check is done we ask the examiner to get out and check the lights then we pretrip the front of the tractor lights etc...and exhaust, wet dry tanks. Then we open the hood again to pretrip the steering and suspension brakes and down the driver side. In South Carolina they also don't want use to say,"I would check that axle the same as the other axle". You have to say each part and say for instance I would check these two front axle tires and these two rear axle tires, all four tires then say what you are looking for.

I went to a North Carolina school and had to learn the South Carolina pretrip, so I knew the pretrip for two states! Every state is a little different. The CDL manual for your state should tell you what is needed, but they don't....there is much more to say.

I passed my pretrip and had to test at the South Carolina DMV. I got 101 out of a possible 107 things you had to mention.

Third party examiners are always much easier than any DMV!

In South Carolina, at the DMV if you pass the skills and fail the road test you have to do the skills over to do the road test again! If you hit a curb automatic failure! I recently received my CDL A license from testing at the DMV. In South Carolina you have to do a bump stop, straight line back, forward serpentene, and then hope you tractor is straight and right into a 90 degree alley dock! You have a 250 feet long asphault pad that is 50 feet wide and I had to back a 53 foot long trailer into a 90 degree alley dock! The alley dock is 12 feet wide with painted lines you can't run over.

Every state is different!

 

i missed 1 item on my pretrip (actually i believe i said it but he didnt hear it since i was talking fast)

expanding on list above:

no discoloration or metal shavings in oil
mention if something is gear driven ie. waterpump
and no more than 3/4 deflection on engine belts
air compressor & governor
slack adjuster mention no more than 1" pull when brakes are off

 

in ontario, canada, you dont lift the hood at all, and just say "checked and topped up my four fluids, drained and charged the airtanks. and will do the brake checks before going on the road " for that part of the pretrip.

 

and they let u guys cross the border?

 

guess its to save time on the test they say.

kinda breaks down into 3 cat.

1. pretrip roughly 15 min.
2. drive test roughly 20 min
3. back into a spot, uncouple, drive out roughly 40 feet, back up and recouple. roughly 15 min.

no real time limit on any one section, however all togeather must be under 1 hour

 

I was just pointing out that in the United States the Pre-Trips are not the same from state to state. Apparantly Canada has a different Pre-Trip?

In South Carolina there is much more to say and point out. As far as the slack adjusters in South Carolina we have to say: With the brakes off I would pull on the slack adjuster and it should have no more than 1 inch of play. There are no loose, missing or broken parts and the slack adjuster is properly greased.

We also have to say, The angle between the push rod and adjuster arm should be a little over 90 degrees when the brakes are released, and not less than 90 degrees when the brakes are applied.

If you miss any words or leave anything out.....you won't get credit and will most likely fail your pre-trip in South Carolina. The DMV does not coach you along.....third party examiners do.