Piper Navajo PA-31 Service Manual page 57

SPECIAL INSTRUCTIONS
1 AIR FILTER - TO CLEAN FILTER. BLOW OUT WITH COMPRESSED AIR
FROM GASKET SIDE OR WASH IN WARM WATER AND MILD DETER-
GENT AND DRY DO NOT USE OIL.
2. BEARINGS AND BUSHINGS - CLEAN EXTERIOR WITH A QUICK DRYING
TYPE SOLVENT BEFORE RELUBRICATING.
3. COWL AND FLAP TRANSMISSION AND SCREWS. TRIM SCREWS AND
WHEEL BEARINGS - DISASSEMBLE AND CLEAN WITH A QUICK DRY-
ING TYPE SOLVENT WHEN REASSEMBLING THE DUKES TRANS-
MISSIONS. PACK 3/4 MINIMUM FULL WITH DUKES FORMULA NO. 2
P/N 2196-74-1 LUBRICANT (PIPER AIRCRAFT P/N 923 120) REAS-
SEMBLY OF THE DURA TRANSMISSIONS REQUIRES A
1/2
FULL PACK-
ING OF MIL-G-7118 GREASE. A THIN COAT OF MIL-G-7118 GREASE
(FOR DURA) OR MIL-G-23827
GREASE (FOR DUKES) SHOULD BE AP-
PLIED ON TRANSMISSION SCREWS.
4. OLEO STRUTS, PISTON STRUTS. POWER PACK RESERVOIR AND
BRAKE RESERVOIR - FILL PER INSTRUCTIONS ON UNIT OR CON-
TAINER. OR REFER TO SERVICE MANUAL, SECTION II.
5. PROPELLER - REMOVE ONE OF THE TWO GREASE FITTINGS FOR EACH
BLADE. APPLY GREASE THROUGH FITTING UNTIL FRESH GREASE
APPEARS AT HOLE OF REMOVED FITTING.
6. LUBRICATION POINTS - WIPE ALL LUBRICATION POINTS CLEAN OF
OLD GREASE. OIL. DIRT. ETC.. BEFORE RELUBRICATING.
7 LUBRICATING OIL - INTERVALS BETWEEN OIL CHANGES CAN BE
INCREASED AS MUCH AS 100% ON ENGINES EQUIPPED WITH FULL
FLOW (CARTRIDGE TYPE) OIL FILTERS - PROVIDED THE ELEMENT IS
REPLACED EACH 50 HOURS OF OPERATION.
8. LOOSEN BOOT FROM GEAR LOCK ROD ASSEMBLY AND GREASE
TUBE. TUBE MUST SLIDE FREE TO SLOT LIMITS. REFER TO LATEST
REVISION OF PIPER SERVICE LETTER NO. 755
9. FUEL FILLER CAPS - APPLY LUBRICATION UNDER THE HANDLE AND
AROUND THE AXLE.
10. APPLY CORROSION RETARDANTCOMPOUND (PIPER P/N 197-508 OR
197-509) TO SPRING IN THE EXTENDED POSITION TO INSURE ALL
COILS ARE COATED. (REFER TO TABLE II-IV CONSUMABLE MA
TERIALS.)
NOTES
1 PILOT AND PASSENGER SEATS - LUBRICATE TRACK ROLLERS AND
STOP PINS AS REQUIRED.
2. WHEEL BEARINGS REQUIRE CLEANING AND REPACKING AFTER
EXPOSURE TO AN ABNORMAL QUANTITY OF WATER.
3 SEE LATEST REVISION OF LYCOMING SERVICE INSTRUCTIONS NO
1014 FOR USE OF DETERGENT OIL.
CAUTIONS
1 DO NOT USE HYDRAULIC FLUID WITH A CASTOR OIL OR ESTER BASE
2. DO NOT OVER LUBRICATE COCKPIT CONTROLS.
3. DO NOT APPLY LUBRICANT TO RUBBER PARTS.
Revised: 5/3/84
HANDLING AND SERVICING
PIPER NAVAJO SERVICE MANUAL
1C9