Piper Comanche PA-24 Service Manual page 123

TABLE II-XVII. LUBRICATION - SPECIAL INSTRUCTIONS
1. BEARINGS AND BUSHINGS - Clean exterior with a quick-drying solvent before relubricating
(except sealed bearings).
2. LUBRICATION POINTS - Wipe all lubrication points clean of old grease, oil, dirt, etc. before
lubricating.
3. WHEEL BEARINGS - Disassemble and clean with a quick-drying solvent. Ascertain that grease is
packed between the roller and cone. Do not pack grease in wheel housing. Wheel bearings require
cleaning and repacking after exposure to any abnormal quantity of water.
4. OLEO STRUTS AND BRAKE RESERVOIR - Fill per instructions on unit or container or refer to
Chapter 11.
5. DOOR SEALS - Apply release agent/dry lubricant to door seals at least once a month to improve
sealing characteristics and to prevent the seal from sticking.
6. CONTROL CABLES - Do not oil control cables. Grease control cables where they pass over a pulley
or through a fairlead.
7. AIR FILTER - Refer to Service Manual, Power Plant section, for appropriate filter and instructions.
Depending on existing conditions, it may be necessary to clean the filter daily or every 5 hours.
8. OIL AND FILTER - See paragraph 2-81 for recommended oil change intervals.
9. See the latest revision of Lycoming Service Instruction No. 1014 for use of detergent oil.
10. Not used.
11. PROPELLER - For each blade: remove a grease fitting; apply grease through the remaining fitting
until fresh grease appears at hole of removed fitting. If annual usage is significantly less than 100
hours, increase lubrication frequency to every six months.
12. Not Used.
13. LANDING GEAR AND FLAP TRANSMISSIONS AND SCREWS - Identify type of transmission
installed. Dukes has label on transmission housing, Dura has Part No. 1010250 stamped on
transmission housing. Disassemble and clean. When reassembling transmission, fill Dukes
transmission with:
a. Dukes No. 4 lubricant (PA-24-180, PA-24-250 and PA-24-400).
b. Dukes Grease No. 2196-74-1 (PA-24-260).
Fill Dura transmission with MIL-G-7118 or MIL-G-23827 grease. No substitution is allowed in either
transmission. Apply a thin coat of MIL-G-7118 or MIL-G-23827 grease on actuator screws.
Transmissions should be disassembled, cleaned, inspected and lubricated at each 100 hour interval or
annually.
14. LUBRICATING FLAP TRACKS (Electric Flaps with Steel Rollers Only.) - Lubricate flap tracks with
Dupont's All Surface Slip Spray No. 6611. Flap rollers and tracks require cleaning and lubrication
after exposure to an abnormal quantity of water, mud, etc.
15. FUEL SELECTOR VALVES (Three Position Fuel Selector Valve in PA-24-180 and PA-24-250 only.) -
Lubricate as required. See paragraph 8-14.
16. OVERHEAD TRIM PULLEY - Lubrication may be extended to 250 hours when dusty conditions are
at a minimum. Under no circumstances should the cables from the cockpit to the rear of the fuselage
be lubricated, as this may cause slippage.
04/01/09
PIPER COMANCHE SERVICE MANUAL
II - HANDLING AND SERVICING
1C45