Cessna 188 Series Service Manual page 32

MODEL 188 & T188 SERIES SERVICE MANUAL
2-28. CLEANING.
NOTE
2-29. GENERAL CONSIDERATIONS.
Keeping the At least once a day, the aircraft should be
aircraft clean is important.
Besides maintaining the
cleaned t o help prevent corrosion and staining
trim appearance of the aircraft, cleaning reduces the
of the painted surfaces.
possibility of corrosion and makes inspection and
maintenance easier.
2-32. INTERIOR CLEANING.
Prior to hosing out
the interior of the fuselage, remove the two panels
2-30. WINDSHIELD AND WINDOWS.
Clean care- on each side of the tubular structure and the one on
fully with plenty of fresh water and a mild detergent.
each side of the tailcone. Open the two access doors
using the palm of the hand to feel and dislodge any aft of the firewall and remove rubber plugs from
caked dirt or mud. Rubber gloves should be used to drain holes in bottom of fuselage.
Remove pilot's
avoid hands coming in contact with any chemicals or seat. The radio, heater outlet and instrument panel
dust on windows or windshield. A sponge, soft cloth should be protected to keep them dry. First hose
or chamois may be used. but only as a means of down interior of fuselage and inside of panels, using
carrying water to the plastic. Rinse thoroughly, then clean water to flush away any dust and chemicals
dry with a clean moist chamois. Do not rub the plas- that may have collected.
Care must be taken not to
tic with a dry cloth since this builds up an electro-direct stream of water on or behind the instrument
static charge which attracts dust. Oil and grease pael or radio. Do not direct stream of water at
may be removed by rubbing lightly with a soft cloth
intersection of rudder cables and aft tailcone bulk-
moistened with Stoddard solvent. After washing. th head, as water could get through the seals into the
stabilizer.
After the interior has been hosed down
plastic windshield and windows should be cleaned stabilizer
After the interior has been hosed down
with an aircraft windshield cleaner.
Apply the clean- it should be washed by hand with a sponge or soft
er with soft cloths, and rub with moderate pressure. cloth, using a mixture of warm water and soap.
Allow the cleaner to dry. then wipe it off with soft Rubber gloves should be worn during the washing
flannel cloths. A thin, even coat of wax, polished process to protect hands from chemicals on the inter-
out by hand with clean, soft flannel cloths, will fill ior surface. A hose rinse should follow the soap and
in minor scratches and help prevent further scratch- water washing process to flush away soapy water.
ing. Do not use a canvas cover on the windshield or After a reasonable drying period reinstall rubber
windows unless a freezing rain or sleet is anticipated, plugs in drain holes in bottom of fuselage. Close
since the cover may scratch the plastic surface.
access doors, and reinstall panels and pilot's seal.
CAUTION
2-33. ENGINE AND ENGINE COMPARTMENT. An
engine and accessories wash-down should be accom-
Do not use gasoline, alcohol, benzene, acetone,
plished during each 100-hour inspection to remove
carbon tetrachloride, fire extinguisher fluid,
oil, grease, salt corrosion or other residue that
de-icer fluid, lacquer thinner or glass window
might conceal component defects during inspection.
cleaning spray. These solvents will soften
Also, periodic cleaning can be very effective in pre-
and craze the plastic.
ventive maintenance.
2-31. EXTERIOR CLEANING.
Do not apply wax or Precautions should be taken when working with clean-
polish for a period of 7 to 10 days after delivery. ing agents such as wearing of rubber gloves, an apron
This will give the paint a chance to cure by the nat- or coveralls and a face shield or goggles. Use the
ural process.
Waxes and polishes seal the paint least toxic of available cleaning agents that will satis-
from the air and prevent curing. Any ordinary auto- factorily accomplish the work. These cleaning agents
mobile paste wax may be used to polish the painted include: (1) Stoddard solvent (Specification P-D-680,
surface. If it is necessary to clean the painted sur-
type II), (2) A water base alkaline detergent cleaner
face before the expiration of the curing period, use (MIL-C-25769J) mixed 1 part cleaner, 2 to 3 parts
cold or lukewarm water and soap, rubbing gently water and 8 to 12 parts Stoddard solvent or (3) A sol-
and holding it to a minimum to avoid cracking the
vent base emulsion cleaner (MIL-C-4361B) mixed 1
paint film. Prior to cleaning, install plugs or mask part cleaner and 3 parts Stoddard solvent.
off all openings to prevent entry of water in the en-
gine compartment. or pitot and static systems.
First the airplane including spray and dusting equip- ..
ment should be hosed down with clean water to
Do not use gasoline or other highly flam-
flush away any loose dirt; then wash with clean luke- mable substances for wash-down.
warm water and soap. Rubber gloves should be used
to avoid hands coming in contact with any chemicals Perform all cleaning operations in well ventilated
on the exterior surface. Harsh or abrasive soaps
work areas, and ensure that adequate fire-fighting
or detergents, which could cause corrosion or make and safety equipment is available. Do not smoke or
scratches, should not be used. Soft cleaning cloths exposea flame within 100 feet of the cleaning area.
or a chamois should be used to prevent scratches Compressed air, used for cleaning agent application
when cleaning or polishing. To remove stubborn or drying, should be regulated to the lowest practical
oil and grease. use a cloth dampened with naphtha or
pressure. Use of a stiff bristle brush rather than a
kerosene. A ine grade rubbing compound may be
steel brush is recommended if cleaning agents do not
used to remove bugs and gasoline stains.
remove excess grease and grime during spraying.
2-10