Piper Aircraft Corporation Cherokee 140 PA-28-140, Service Manual

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TABLE II-XII. SPECIAL INSTRUCTIONS
PIPER CHEROKEE SERVICE MANUAL
01/31/08 II - HANDLING AND SERVICING
1E17
1. BEARINGS AND BUSHINGS - Clean exterior with a quick drying solvent before lubricating.
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, HYDRAULIC PUMP RESERVOIR AND BRAKE RESERVOIR - Fill per
instructions on unit or container, or refer to applicable chapter in this manual.
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 - To clean filter, tap gently to remove dirt particles. Do not blow out with compressed air
or use oil. Replace filter if excessively contaminated, damaged, or punctured. Air filter is located on left
side on PA-28R models; on right side on PA-28-150, -160, -180 and -235 and on nose of PA-28-140.
8. OIL AND FILTER - Lycoming recommends changing the oil and filter every 50 hours or four months,
whichever comes first. Intervals between oil changes can be increased as much as 100% on engines
equipped with full flow (cartridge type) oil filters, provided the specified octane fuel is used and the
filter replaced each 50 hours of operation. Should fuel other than the specified octane rating for the
power plant be used, refer to the latest revision of Lycoming Service Letter No. L185, for additional
information and recommended service procedures.
9. See the latest revision of Lycoming Service Instructions No. 1014 for use of detergent oil.
10. O-RING, CONTROL WHEEL SHAFT BUSHING - Disassemble the retainer plates and lubricate the
control wheel shaft bushing O-ring as required. Ensure thick retainer plate is reassembled with slot up.
11. BUNGEE - Lubricate springs if bungee is disassembled.
12. AILERON HINGES - Aileron hinges with teflon sleeves should NOT be lubricated. Aileron hinges
without teflon sleeves should first be cleaned with a dry type solvent then lubricated with MIL-PRF-
7870.
13. 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.
14. ALTERNATOR IDLER PULLEY BEARING - Lubricate bearing by removing front grease seal.
15. DIAPHRAGM SHAFT AND BUSHING - Soft film silicon compound (MIL-C-21567) is
recommended for use when operating at temperatures below 20°F.
16. FUEL SELECTOR VALVE - Lubricate area where detent ball moves across cover plate (on external
detent valves only).
17. CONDENSER DOOR ACTUATING TRANSMISSION - Transmission to be 1/2 full of grease. Apply
grease during assembly and lubricate transmission ball nut and screw with MIL-PRF-23827 grease.