Piper SEMINOLE PA-44-180, Maintenance Manual

Page: 83 / 881

2. With the engine cowlings removed, spray or brush the engines 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.
— CAUTION —
DO NOT OPERATE ENGINES UNTIL EXCESS SOLVENT HAS
EVAPORATED OR OTHERWISE BEEN REMOVED.
3. 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.
4. Remove the protective covers from magnetos.
5. Lubricate controls, bearing surfaces, etc., per Lubrication Chart.
LANDING GEAR.
Before cleaning the landing gear, place a plastic cover or similar material over the wheel and brake
assembly.
1. Place a pan under the gear to catch waste.
2. 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. Do not brush micro switches.
3. Allow the solvent to remain on the gear from five to ten minutes, then rinse the gear with additional solvent
and allow to dry.
4. Remove the cover from the wheel and remove the catch pan.
5. Lubricate the gear per Lubrication Chart.
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:
1. Flush away loose dirt with water.
2. Apply cleaning solution with a rag, sponge or soft bristle brush.
3. To remove stubborn oil and grease, use a cloth dampened with naptha.
4. Where exhaust stains exist, allow solution to remain on the surface longer.
5. 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.
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
1 2 - 2 8 - 0 3
Page 12-11
Revised: May 15, 1989
1D11
PIPER AIRCRAFT