Holiday Neptune 2004, Owner'S Manual

Page: 147 / 416

EXTERIOR & INTERIOR CARE --- SECTION 3 • 147
NEPTUNE 2004
3
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 linings 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 accumulate 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.