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Commercial driver's guide to operation, safety and licensing

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Step 5 (Air system leaks)<br />

Push both park control valves <strong>and</strong><br />

rebuild air pressure.<br />

Turn off the engine.<br />

Apply <strong>and</strong> firmly hold a full service brake<br />

application for 2 minutes.<br />

Maximum 4 PSI (28 kPa) loss for power<br />

units, plus an additional 2 PSI (14 kPa)<br />

per trailer, after the system stabilizes.<br />

Release service brake application <strong>and</strong><br />

reapply spring park brakes.<br />

Step 6 (Service brake<br />

response)<br />

Remove wheel chocks.<br />

Release spring park brakes.<br />

Perform a brake response test using the<br />

foot valve.<br />

Perform a brake response test using the<br />

trailer h<strong>and</strong> valve.<br />

Enroute check s<strong>to</strong>p<br />

inspections<br />

Rest <strong>and</strong> check s<strong>to</strong>ps serve two purposes.<br />

First, they provide a break <strong>and</strong> a change<br />

of routine. You will feel less tired <strong>and</strong> more<br />

alert after a rest s<strong>to</strong>p. Second, you can<br />

check your vehicle after it has been on the<br />

road for some time. You will be able <strong>to</strong> see<br />

if everything is still secure <strong>and</strong> working the<br />

way it should.<br />

Schedule rest <strong>and</strong> check s<strong>to</strong>ps<br />

according <strong>to</strong> National Safety Code (NSC)<br />

requirements <strong>and</strong> your company’s policy.<br />

When choosing a s<strong>to</strong>p, keep the<br />

following in mind:<br />

• Make sure the vehicle is completely<br />

off the road.<br />

• You should be able <strong>to</strong> enter <strong>and</strong> exit a<br />

rest or check s<strong>to</strong>p so that you do not<br />

have <strong>to</strong> back the vehicle.<br />

• Do not make a s<strong>to</strong>p at the bot<strong>to</strong>m of a<br />

hill or on an uphill slope.<br />

• The s<strong>to</strong>p area should have an adequate<br />

acceleration lane <strong>to</strong> allow you <strong>to</strong><br />

merge on <strong>to</strong> the highway at the<br />

appropriate speed.<br />

A vehicle inspection at a rest <strong>and</strong> check<br />

s<strong>to</strong>p should include the following:<br />

• All lights are clean <strong>and</strong> in working order.<br />

• There are no air leaks.<br />

• All the wheels are secure, <strong>and</strong> tires are<br />

properly inflated <strong>and</strong> are not hot.<br />

• There are no broken or loose items on<br />

the vehicle.<br />

• The load is secure.<br />

• The dangerous goods placards are<br />

clean <strong>and</strong> secure (if applicable).<br />

• The trailer locking mechanisms are<br />

secure <strong>and</strong> in good condition.<br />

• The brakes are properly adjusted.<br />

Reporting <strong>to</strong> a<br />

vehicle inspection<br />

station<br />

One of the most common misconceptions<br />

regarding vehicle inspection stations is<br />

that only large commercial vehicles have<br />

<strong>to</strong> report. The law is that all commercial<br />

vehicles or combinations weighing over<br />

4,500 kg are required <strong>to</strong> report <strong>to</strong> inspection<br />

stations when the highway lights are<br />

flashing. A “commercial vehicle” is defined<br />

as a vehicle operated on a highway by<br />

or on behalf of a person for the purpose<br />

of providing transportation but does not<br />

include a private passenger vehicle.<br />

36 A <strong>Commercial</strong> Driver’s Guide <strong>to</strong> Operation, Safety <strong>and</strong> Licensing

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