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INSPECTION AND DAIL Y MAINTENANCE
• Frame and crossmembers not damaged
• Proper placarding.
• Body parts not damaged Step 15: the Cab
• Check steps and grab handles for looseness breakage. Also, clean them there any substance that makes them slippery , which makes cab entry/exit hazardous.
• Start the check that exhaust rain cap opens when accelerating
• Check gauges and tell - tale light function. See the Instruments and Controls section.
• Check tail brake emergency flashers and turn signal lights for proper cleanliness and proper color
• Check function low air warning.
• Check clutch function. equipped, check for clutch brake function.
• Check windshield wipers and washers and including back -
• Clean inside windshield, door windows and instruments. Clean mirrors.
• Check temperature control and defroster check mirror heater
• Check condition warning triangles, fire extinguisher and flares.
• Adjust the Check mirror
• Check safety belts for function and damage.
• Apply service brakes. After initial drop, pressure should hold steady , increase slightly , with engine idle.
• Check slack adjusters and chamber pushrod
• Check steering wheel for excessive free play .
• Check for loose items the Secure them necessary
Step 16: Before Leaving the Parking Area
• Remove chocks from the wheels.
• T est trailer hook - slowly pulling while applying the trailer brakes with the trailer brake hand control https://www.truck-manuals.net/mack/
• T est the service brakes before leaving the parking https://www.truck-manuals.net/mack/
• T est parking brakes stopping a 20% grade and applying the parking brakes. The parking brakes shall hold the combined vehicle and trailer without moving.