Cleaning Landing Gear; Cleaning Exterior Surfaces; Cleaning Windshield And Windows - Piper Navajo Chieftain PA-31-350 Service Manual

c.
Allow the solvent to remain on the engine from five to ten minutes, then rinse the engine clean
with additional solvent and allow to dry.
CAUTION
Do not operate engine until excess solvent has evaporated or
otherwise been removed.
d.
Remove the protective covers from the filter and magnetos.
e.
Lubricate controls, bearing surfaces, etc., per Lubrication Chart.
2-66. CLEANING LANDING GEAR. Before cleaning the landing gear, place a plastic cover or similar
material over the wheel and brake assembly.
a.
Place a pan under the gear to catch waste.
b.
Spray or brush the gear area with solvent or a mixture of solvent and degreaser, as desired. It may
be necessary to brush areas that were sprayed where heavy grease and dirt deposits have collected in order
to clean them.
NOTE
If desired, the inboard gear doors may be lowered by actuating the
emergency hand pump handle, with the master switch off.
c.
Allow the solvent to remain on the gear from five to ten minutes, then rinse the gear with
additional solvent and allow to dry.
d.
Remove the cover from the wheel and remove the catch pan.
e.
Lubricate the gear per Lubrication Chart.
2-67. CLEANING EXTERIOR SURFACES. The airplane should be washed with a mild soap and water.
Harsh abrasive or alkaline soaps or detergents used on painted or plastic surfaces could make scratches or
cause corrosion of metal surfaces. Cover areas where cleaning solution could cause damage. To wash the
airplane, the following procedure may be used:
a.
Flush away loose dirt with water.
b.
Apply cleaning solution with a rag, sponge or soft bristle brush.
c.
To remove stubborn oil and grease, use a cloth dampened with naphtha.
d.
Where exhaust stains exist, allow solution to remain on the surface longer. A cleaning compound
may be used on the stainless steel exhaust shield.
e.
Any good automotive wax may be used to preserve the painted surfaces. Soft cleaning cloths or a
chamois should be used to prevent scratches when cleaning or polishing. A heavier coating of wax on the
leading surfaces will reduce the abrasion problems in these areas.
2-68. CLEANING WINDSHIELD AND WINDOWS.
a. Remove dirt. mud, etc. from the surface with clean water.
b. Wash with mild soap and water or a 50/50 solution of isopropanol and water. (Do not use plastic
cleaners on glass windshields.) Do not use any abrasive materials, strong acids or bases, methanol, or Methyl
Ethyl Ketone. Use a soft cloth or sponge in a straight rubbing motion. Do not rub harshly.
CAUTION
Do not use gasoline, alcohol, benzene, carbon tetrachloride, thinner
or window cleaning sprays.
Reissued: 9/23/80
HANDLING AND SERVICING
NAVAJO CHIEFTAIN SERVICE MANUAL
1C21