New Motor Coach Break-in Maintenance
Perform the following procedures.
NOTE: The vehicle should be driven on well-maintained roadways
during this period.
•
Drive the motor coach appropriately for a new vehicle and
accelerate smoothly. Do not place the motor coach in neutral when
coasting. As much as possible; do not brake in an urgent manner
during the break-in period.
•
The speed limit during this time is less than 30 Mph. (50 Km/h).
Drive the bus empty for the first 150 miles (250 km). Do not
overload the bus after the 150 mile (250 km) break-in period.
•
Check the fluid levels in the engine, the gearbox, the driving axle,
and the steering system. If fluids are low, add the appropriate fluid,
but do not overfill. Check for any leakage in each system.
•
Check to see if the brake system is normal. Look for any leakage
among the valves and the various pipeline connections.
•
Check the steering system for loose or blocking parts
•
Check the electric appliances, lamps, and instruments.
•
Pay attention to the temperatures on the gearbox, the driving axle,
the wheel hubs, and the brake discs frequently. If there are any
overheating problems, find the cause and correct immediately.
•
Pay special attention to the oil pressure and engine coolant
temperature. They should remain in the normal range.
•
Replace the engine lubricant according to the engine
manufacturer’s manual. The engine lubricant should be drained
while the engine is hot.
WARNING
Take extreme precautions to drain engine oil while engine is hot.
The hot components or hot oil can cause severe burns which can
lead to permanent injury or death.
Post New Motor Coach Break-in Maintenance
Perform the following procedures.
•
Ensure proper nut and bolt torque on cylinder head, valve cover,
manifold bolts, etc.
•
Check the valve lash.
•
Replace the lubricant in the engine, the gearbox, and the reduction
final drive, as well as the filter core in the oil reservoir.
•
Check the connecting positions in the steering system for any
loosening or damage.
•
Tighten the bolts and nuts in the front and rear suspension systems
according to the specified torques.
•
Check the installation and fastening of the various components in
the hydraulic system of the steering mechanism. Lubricate and
maintain the motor coach according to this basic maintenance
check list.
•
Check for any oil, water, or air leakage within the various portions of
the motor coach.
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