Monaco 2002 Diplomat, Service Manual

Page: 93 / 324

Care & Maintenance
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D I P L O M A T 3 • 9 3
• Cardboard templates can be made for the windows to protect
these items from exposure to direct sunlight.
• Tire covers are available to protect the sidewall of the tires from
cracking. Make sure the tires contain the correct air pressure.
Underinflated tires can be damaged.
• Washing the exterior regularly will help control moss accumulation.
The clear coat has UV protective substances. Waxing the
motorhome twice a year will augment these substances.
Inspect the motorhome:
• Perform a full interior inspection for water leaks every two
weeks while the motorhome is in storage. Open all cabinet doors
looking for signs of dampness or leaks. Inspect the ceiling areas
around roof vents or other roof openings.
• The roof and sidewall seams should be inspected and cleaned at
least twice a year. Inspect for exterior sealant gaps of all roof
seams, vents, skylights, roof air conditioners and windows. If
necessary, use the proper sealants and recommended application
procedures.
Fuel:
A full tank of fuel will help prevent moisture from condensing at the top
of the tank. Diesel fuel is an organic material which will develop a microbe
growth (black slime). Fuel stabilizers may be added to help prevent the
microbe growth. Consult the Cummins manual or a Cummins distributor for
further detailed information on fuel stabilizers and additives.
Brakes:
Brakes also suffer from non-use during periods of storage. The bare metal
machined surfaces of brake drums or rotors have only a light coating of dust
from the brake lining friction material. The brake dust is the only thing protect-
ing the bare metal surfaces from rusting. Only regular brake applications dry
the moisture, preventing rust on brake drum or rotor surfaces. During periods
of non-use, oxygen and moisture oxidize the machined surfaces. Only occa-
sional use keeps these surfaces from oxidizing. Rusty brake drum or rotor
surfaces permeate the brake lining upon the first few applications, reducing
the friction action of the lining.
Engine:
Internal combustion engines need to be “exercised” on a regular basis.
This will ensure that an adequate supply of lubricating oil coats the cylinder
walls and piston rings. Valve and valve seat surfaces also suffer from non-
use. Some valves will remain open, depending upon which part of the com-
bustion cycle the engine has stopped. The heat and cold of the day allows
moisture to accumulate through the exhaust system.