Holiday Navigator 2003 Owner's Manual page 125

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 minimize moisture 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 control microbe growth and
degrading of the fuel. 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 protecting
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 occasional
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 linings.
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 at which part of the combustion cycle the
engine has stopped. The heat and cold of the day allows moisture to accumu-
late through the exhaust system.
Electric Motors:
Electric motors in the motorhome should be operated occasionally to help
lubricate and keep surfaces rotating freely. These items include the roof air
conditioners, dash fans, dash blower motor, furnace or Aqua Hot motors, heat
exchangers and powered roof vents.
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N A V I G A T O R 2 0 0 3
Care & Maintenance
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