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Commercial driver's guide to operation, safety and licensing

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possible, have another person activate<br />

the controls while you check for<br />

proper <strong>operation</strong>)<br />

brake chambers are secure, no signs of<br />

cracks, corrosion or holes <strong>and</strong> nothing<br />

obstructs the push rod travel<br />

slack adjusters - pull manually or use a<br />

pry bar <strong>to</strong> check for travel, mechanical<br />

condition <strong>and</strong> wear<br />

air lines are secured, no leaks, kinks,<br />

cuts, abrasions or cracks in housing<br />

mud flap is secure <strong>and</strong> does<br />

not rub tires<br />

body has no damage, broken or missing<br />

rivets, holes or weld separations.<br />

Bus<br />

s<strong>to</strong>p arm is secure <strong>and</strong> not damaged<br />

(school bus only)<br />

body has no damage, broken or<br />

missing rivets, holes or weld separations<br />

frame <strong>and</strong> structural supports have no<br />

holes, bends, cracks, weld separations<br />

or broken cross members<br />

retro-reflective tape is clean (school bus<br />

only)<br />

clearance <strong>and</strong> marker lights work,<br />

lenses are clean <strong>and</strong> not cracked,<br />

reflec<strong>to</strong>rs are clean<br />

suspension has no cracked, missing or<br />

broken springs, no loose, missing<br />

or broken U-bolts<br />

Ambulance<br />

clearance <strong>and</strong> marker lights work,<br />

lenses are clean <strong>and</strong> not cracked,<br />

reflec<strong>to</strong>rs are clean<br />

drive axle tire has adequate tread depth<br />

(not less than 1.6 mm), proper inflation,<br />

no bulges, sidewall separation, cuts or<br />

uneven wear, dual tires if equipped are<br />

not <strong>to</strong>uching <strong>and</strong> nothing is trapped<br />

between them<br />

drive axle wheel rim has no cracks,<br />

wheel fasteners are secure <strong>and</strong><br />

not missing<br />

Driver’s front <strong>and</strong> side of a trailer<br />

(if equipped)<br />

inspection decal is present, valid<br />

<strong>and</strong> in the proper location<br />

body has no damage, broken or<br />

missing rivets, holes or weld separations<br />

frame <strong>and</strong> structural supports have no<br />

holes, bends, cracks, weld separations<br />

or broken cross members<br />

l<strong>and</strong>ing gear is raised, h<strong>and</strong>le is secure,<br />

there are no cracks or breaks in<br />

cross members or webbing, lowering<br />

mechanism is secure<br />

air lines are secured safely, there are no<br />

leaks, kinks, cuts, abrasions or cracks<br />

in housing<br />

clearance <strong>and</strong> marker lights work,<br />

lenses are clean <strong>and</strong> not cracked,<br />

reflec<strong>to</strong>rs <strong>and</strong> retro-reflective tape<br />

is clean<br />

load security devices work, anchor<br />

points are secure, vehicle <strong>and</strong> load<br />

devices are not damaged<br />

first trailer axle tires have adequate tread<br />

depth (not less than 1.6 mm), proper<br />

inflation, no bulges, sidewall separation,<br />

cuts or uneven wear, dual tires are<br />

not <strong>to</strong>uching <strong>and</strong> nothing is trapped<br />

between them<br />

first trailer axle wheel rims have no<br />

cracks, missing pieces, bends or rust<br />

streaks, wheel fasteners are secure <strong>and</strong><br />

not missing or broken<br />

second trailer axle tires have adequate<br />

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

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