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104 OPERATION
Pre-Trip Inspection Quick List
Inspect the vehicle in a circular manner.
Approaching the Vehicle
• Check under the vehicle for oil, fuel, coolant leaks or other signs of damage.
• Check body surfaces for signs of breaks or damage.
Preparation
• Open drain cocks on air tanks to let the tanks drain.
• Chock wheels on vehicle and, if hooked up, trailer.
• Close air tank drain cocks.
• Start the engine and let the air pressure build up to normal. Stop engine.
• Switch on parking lights and hazard lights.
• Apply parking brakes.
• Pull the hood release lever or release the hood latches, raise hood.
Step 1: Left Side of the Cab
Left Front Wheel
• Check condition of wheel rim. Especially look for cracks, missing lockrings,
bent or broken studs, clamps or lugs.
• Check condition of tire: properly inflated, no serious cuts, bulges, tread
wear or any signs of misalignment; valve stem not touching wheel, rim or
brake drum; valve cap in place.
• Check wheel bearing and hub: no obvious leaking on outside or inside
wheel. Verify correct oil level in hub.
Left Front Suspension
• Check condition of spring, spring hangers, shackles, U-bolts: no cracks,
breaks or shifting.
• Check shock absorber condition.
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