Commercial Driver Handbook ( PDF ) - California Department of ...

Front
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Frame
Frame
Bracket
Reinforcement
Height Control Valve
Eye Bolt
U-Bolts
Clamp Bolt
Control Arm Anchor Plate
Figure 2-3
Bellows Support (Upper)
Axle
Axle Seat
Air Suspension Diagram
Figure 2-4
Spacer
Shock Absorber
Bellows
Bellows Support (Lower)
Brakes
• Brake adjustment.
• Condition of the brake drum(s) or discs.
• Condition of the hoses—look for any wear
due to rubbing.
Lights and Reflectors
• Side-marker lights are clean, operating, and
the proper color (red at rear, others amber).
• Side-marker reflectors are clean and the proper
color (red at rear, others amber).
Rear
• Lights and reflectors
— Rear clearance and identification lights
are clean, operating, and the proper color
(red at rear).
— Reflectors are clean and the proper color
(red at rear).
— Taillights are clean, operating, and the
proper color (red at rear).
— Right rear turn signal is operating and the
proper color (red, yellow, or amber at rear).
• License plate(s) are present, clean, and secured.
• Splash guards present, not damaged, properly
fastened, not dragging on the ground, or the
rubbing tires.
• Cargo is secure (trucks).
• Cargo is properly blocked, braced, tied,
chained, etc.
• Tailboards are up and properly secured.
• End gates are free of damage and properly
secured in the stake sockets.
• Canvas or tarp (if required) is properly secured
to prevent tearing, billowing, or blocking of
either the rearview mirrors or rear lights.
• If over-length or over-width, make sure all
signs and/or additional lights/flags are safely
and properly mounted and all required permits
are in the driver’s possession.
• Rear doors are securely closed and latched/
locked.
Left Side
Check all items as done on right side, plus:
• Battery(ies) (if not mounted in engine
compartment).
• Battery box(es) are securely mounted to
vehicle.
• Box has secure cover.
• Battery(ies) are secured against movement.
• Battery(ies) are not broken or leaking.
• Fluid in the battery(ies) is at the proper level
(except maintenance-free type).
• Cell caps are present and securely tightened
(except maintenance-free type).
• Vents in the cell caps are free of foreign material
(except maintenance-free type).
Step 6: check the Signal lights
Get in and Turn off the Lights
• Turn off all the lights.
• Turn on the stop lights (apply the trailer hand
brake or have a helper apply the brake pedal.
• Turn on the left turn signal lights.
Get Out and Check the Lights
• Left front turn signal light is clean, operating
and the proper color (amber or white on signals
facing the front).
• Left rear turn signal light and both stop lights
are clean, operating, and the proper color (red,
yellow, or amber).
Note: Checks of brake, turn signal, and 4-way
flasher functions must be done separately.