Mack Truck Terrapro Series (MRU Series) Operator's Handbook Manual - PDF DOWNLOAD

https://www.truck-manuals.net/mack/ 92 PRE-TRIP INSPECTION AND DAILY MAINTENANCE • Frame and crossmembers not bent, cracked, damaged or missing.

• Proper placarding.

• Body parts not damaged or missing.

Step 15: In the Cab • Check steps and grab handles for looseness or breakage. Also, clean them if there is any substance that makes them slippery, which makes cab entry/exit hazardous.

• Start the engine. If equipped, check that exhaust rain cap opens when accelerating engine.

• Check gauges and tell-tale light function. See the Instruments and Controls section.

• Check headlights, tail lights, brake lights, emergency flashers and turn signal lights for proper operation, cleanliness and proper color.

• Check function of low air warning.

• Check clutch function. If equipped, check for clutch brake function.

• Check windshield wipers and washers and horns, including back-up alarm, if equipped.

• Clean inside windshield, door windows and instruments. Clean mirrors.

• Check temperature control and defroster. If equipped, check mirror heater.

• Check condition of warning triangles, fire extinguisher and flares.

• Adjust the seat. Check mirror adjustment.

• Check safety belts for function and damage.

• Apply service brakes. After initial drop, pressure should hold steady, or increase slightly, with engine at idle.

• Check slack adjusters and chamber pushrod travel.

• Check steering wheel for excessive free play.

• Check for loose items in the cab. Secure them if necessary.

Step 16: Before Leaving the Parking Area • Remove chocks from the wheels.

• Test trailer hook-up by slowly pulling while applying the trailer brakes with the trailer brake hand control valve.