8.5 Preventive Maintenance................. 8.15 Landing Gear Service
Contents
1. 3 Allow the solvent to remain on the engine from five to ten minutes Then rinse the engine clean with additional solvent and allow it to dry REPORT VB 880 ISSUED DECEMBER 16 1976 8 14 REVISED MAY 30 1980 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR HANDLING SERVICING AND MAINTENANCE 4 5 CAUTION Do not operate the engine until excess solvent has evaporated or otherwise been removed Remove the protective tape from the magnetos Lubricate the controls bearing surfaces etc in accordance with the Lubrication Chart b Cleaning Landing Gear Before cleaning the landing gear place a plastic cover or similar material over the wheel and brake assembly 2 3 4 5 Place under the gear to catch waste Spray or brush the gear area with solvent or a mixture of solvent and degreaser as desired Where heavy grease and dirt deposits have collected it may be necessary to brush areas that were sprayed in order to clean them Allow the solvent to remain on the gear from five to ten minutes Then rinse the gear with additional solvent and allow to dry Remove the cover from the wheel and remove the catch pan Lubricate the gear in accordance with the Lubrication Chart c Cleaning Exterior Surfaces The airplane should be washed with a mild soap and water Harsh abrasives or alkaline soaps or detergents could make scratches on painted or plastic surfaces or could cause2. VB 880 ISSUED DECEMBER 16 1976 8 6 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE c Parking When parking the airplane be sure that it is sufficiently protected from adverse weather conditions and that it presents no danger to other aircraft When parking the airplane for any length of time or overnight it is suggested that it be moored securely 1 To park the airplane head it into the wind if possible 2 Set the parking brake by pulling back on the brake lever and depressing the knob on the handle To release the parking brake pull back on the handle until the catch disengages then allow the handle to swing forward CAUTION Care should be taken when setting brakes that are overheated or during cold weather when accumulated moisture may freeze a brake 3 Ajileron and stabilator controls should be secured with the front seat belt and chocks used to properly block the wheels d Mooring The airplane should be moored for immovability security and protection The following procedures should be used for the popr mooring of the airplane Head the airplane into the wind if possible 2 Retract the flaps 3 Immobilize the ailerons and stabilator by looping the seat belt through the control wheel and pulling it snug 4 Block the wheels 5 Secure tie down ropes to the wing tie down rings and to the tail skid at approximately 45 degree angles to the g
3. beyond its steering radius in either direction as this will result in damage to the nose gear and steering mechanism CAUTION Do not tow the airplane when the controls are secured In the event towing lines are necessary ropes should be attached to both main gear struts as high up on the tubes as possible Lines should be long enough to clear the nose and or tail by not less than fifteen feet and a qualified person should ride in the pilot s seat to maintain contro by use of the brakes b Taxiing Before attempting to taxi the airplane ground personnel should be instructed and approved by a qualified person authorized by the owner Engine starting and shut down procedures as well as taxi techniques should be covered When it is ascertained that the propeller back blast and taxi areas are clear power should be applied to start the taxi roll and the following checks should be performed Taxi a few feet forward and apply the brakes to determine their effectiveness 2 While taxiing make slight turns to ascertain the effectiveness of the steering 3 Observe wing clearance when taxiing near buildings or other stationary objects If possible station an observer outside the airplane 4 When taxiing over uneven ground avoid holes and ruts 5 Do not operate the engine at high RPM when running up or taxiing over ground containing loose stones gravel or any loose material that may cause damage to the propeller blades REPORT
4. corrosion of metal Cover areas where cleaning solution could cause damage To wash the airplane use the following procedure 1 2 3 4 5 6 lush away loose dirt with water Apply cleaning solution with a soft cloth a sponge or a soft bristle brush To remove exhaust stains allow the solution to remain on the surface longer To remove stubborn oil and grease use a cloth dampened with naphtha Rinse all surfaces thoroughly Any good automotive wax may be used to preserve 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 d Cleaning Windshield and Windows 1 2 3 Remove dirt mud and other loose particles from exterior surfaces with clean water Wash with mild soap and warm water or with aircraft plastic cleaner Use a soft cloth or sponge in a straight back and forth motion Do not rub harshly Remove oil and grease with a cloth moistened with kerosene CAUTION Do not use gasoline alcohol benzene carbon tetrachoride thinner acetone or window cleaning sprays ISSUED DECEMBER 16 1976 REPORT VB 880 REVISED MAY 30 1980 8 15 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II 4 After cleaning plastic surfaces apply a thin coat of hard polishing wax Rub lightly with a soft clot
5. had the required tests and inspections performed may be different in fabrication techniques and materials and may be dangerous when installed in an airplane Additionally reworked or salvaged parts or those parts obtained from non PIPER approved sources may have service histories which are unknown or cannot be authenticated may have been subjected to unacceptable stresses or temperatures or may have other hidden damage not discernible through routine visual or nondestructive testing This may render the part component or structural assembly even though originally manufactured by PIPER unsuitable and unsafe for airplane use PIPER expressly disclaims any responsibility for malfunctions failures damage or injury caused by use of non PIPER approved parts REVISED APRIL 25 2005 SECTION 8 HANDLING SERVICING AND MAINTENANCE This section provides general guidelines relating to the handling servicing and maintenance of the REPORT VB 880 8 1 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II n A n R nq _ _ 8 1 GENERAL continued Every owner should stay in close contact with an authorized Piper Service Center or Piper s Customer Services Department to obtain the latest information pertaining to their airplane and to avail themselves of Piper s support systems Piper takes a continuing interest in having owners get the most efficient use from
6. 70 for additional information ISSUED DECEMBER 16 1976 REPORT VB 880 REVISED APRIL 17 1989 8 11 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II A summary of the current grades as well as the previous fuel designations is shown in the following chart FUEL GRADE COMPARISON CHART Current Military Previous Commercial Current Commercial Fuel Grades 5572 Fuel Grades ASTM D910 Fuel Grades ASTM D910 75 Amendment No 3 Max TEL Max TEL Max TEL Grade Color ml U S n Grade Color ml U S _ Grade Color ml U S 80 87 80 87 91 98 2 0 100 130 3 100 130 115 145 115 145 Grade 100LL fuel some over seas countries is currently colored green and designated as 100L Commercial fuel grade 100 and grade 100 130 both of which are colored green having TEL content of up to 4 m U S gallon are approved for use in all engines certificated for use with grade 100 130 fuel The operation of the aircraft is approved with an anti icing additive in the fuel When anti icing additive is used it must meet the specification MIL I 27686 must be uniformly blended with the fuel while refueling must not exceed 0 15 by volume of the refueled quantity and to ensure its effectiveness should be blended at not less than 0 10 by volume One and one half liquid ozs per ten gallon of fuel would fall within this range A blender supplied by the additive manu
7. A 28 161 CHEROKEE WARRIOR 8 1 SECTION 8 AIRPLANE HANDLING SERVICING AND MAINTENANCE GENERAL Cherokee Warrior For complete maintenance instructions refer to the PA 28 Service Manual ISSUED DECEMBER 16 1976 WARNING Inspection maintenance and parts requirements for all non PIPER approved STC installations are not included in this handbook When a non PIPER approved STC installation is incorporated on the airplane those portions of the airplane affected by the installation must be inspected in accordance with the inspection program published by the owner of the STC Since non PIPER approved STC installations may change systems interface operating characteristics and component loads or stresses on adjacent structures PIPER provided inspection criteria may not be valid for airplanes with non PIPER approved STC installations WARNING Modifications must be approved in writing by PIPER prior to installation Any and all other installations whatsoever of any kind will void this warranty in it s entirety WARNING Use only genuine PIPER parts or PIPER approved parts obtained from PIPER approved sources in connection with the maintenance and repair of PIPER airplanes Genuine PIPER parts are produced and inspected under rigorous procedures to insure airworthiness and suitability for use in PIPER airplane applications Parts purchased from sources other than PIPER even though identical in appearance may not have
8. C 43 13 2 require a Supplemental Type Certificate The owner or pilot is required to ascertain that the following Aircraft Papers are in order and in the aircraft a To be displayed in the aircraft at all times 1 Aircraft Airworthiness Certificate Form FAA 8100 2 2 Aircraft Registration Certificate Form FAA 80S0 3 3 Aircraft Radio Station License if transmitters are installed b To be carried in the aircraft at all times 1 Pilot s Operating Handbook 2 Weight and Balance data plus a copy of the latest Repair and Alteration Form FAA 337 if applicable 3 Aircraft equipment list Although the aircraft and engine logbooks are not required to be in the aircraft they should be made available upon request Logbooks should be complete and up to date Good records will reduce maintenance cost by giving the mechanic information about what has or has not been accomplished ISSUED DECEMBER 16 1976 REPORT VB 880 8 5 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II 8 9 GROUND HANDLING a Towing The airplane may be moved on the ground by the use of the nose wheel steering bar that is stowed below the forward ledge of the baggage compartment or by power equipment that will not damage or excessively strain the nose gear steering assembly Towing lugs are incorporated as part of the nose gear fork CAUTION When towing with power equipment do not turn the nose gear
9. ND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II 8 5 PREVENTIVE MAINTENANCE The holder of a pilot certificate issued under Federal Aviation Regulations FAR Part 61 may perform certain preventive maintenance as defined in the FARs This maintenance may be performed only on an aircraft which the pilot owns and operates and which is not used in air carrier or air taxi commercial operations service All other aircraft maintenance must be accomplished by a person or facility appropriately certificated by the Federal Aviation Administration FAA to perform that work Anytime maintenance is accomplished an entry must be made in the appropriate aircraft maintenance records The entry shall include a The date the work was accomplished b Description of the work c Number of hours on the aircraft d The certificate number of pilot performing the work e Signature of the individual doing the work REPORT VB 880 ISSUED DECEMBER 16 1976 8 4 REVISED SEPTEMBER 13 1990 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE 8 7 AIRPLANE ALTERATIONS If the owner desires to have his aircraft modified he must obtain FAA approval for the alteration Major alterations accomplished in accordance with Advisory Circular 43 13 2 when performed by an A amp P mechanic may be approved by the local FAA office Major alterations to the basic airframe or systems not covered by A
10. TABLE OF CONTENTS SECTION 8 AIRPLANE HANDLING SERVICING AND MAINTENANCE Paragraph Page No No S1 E E EE ENER EE E RE 8 1 8 3 Airplane Inspection PenodS TE 8 3 8 5 Preventive a EAE 8 4 S T Airplane Alterations UL UU LI a ane ao as 8 5 8 97 Gorn u e e E secs a eae EA AR EN EE E E quas E OON E 8 6 Sell Eneme Ar FIET 8 8 5 9 Brake O AE RRR 8 8 8 15 Landing Gear Service a Qu 8 10 SoD Propeller 8 11 8 19 OURS GUIFEMIENES E 8 11 S241 Euel R vues sede penn a E E E A 8 1 8 29 INA OM 2osuansaniassanaqupasasssaayyasquspawshaqpasaaquspupassayqayqqaysaqayak qasqu marca EGE 8 14 8 25 Battery Servi Ce 8 14 S290 MOIS AMIE A E 8 14 29 Cold W0atherOb8dti licouesssurawpawasayuppiassayaysaqasyayasadassanqasayapasasaspanaysaaypipaqaquspankesssqkhaqssapayayusqaqqaas 8 16 REPORT VB 880 8 i PIPER AIRCRAFT CORPORATION P
11. a Piper Authorized Service Center or a reputable repair shop Piper cannot accept responsibility for the continued airworthiness of any aircraft not maintained to these standards and or not brought into compliance with applicable Service Bulletins issued by Piper instructions issued by the engine propeller or accessory manufacturers or Airworthiness Directives issued by the FAA A Progressive Inspection approved by the Federal Aviation Administration FAA is also available to the owner This involves routine and detailed inspections to allow maximum utilization of the airplane Maintenance inspection costs are reduced and the maximum standard of continued airworthiness is maintained In addition but in conjunction with the above the FAA requires periodic inspections on all aircraft to keep the Airworthiness Certificate in effect The owner is responsible for assuring compliance with these inspection requirements and for maintaining proper documentation in logbooks and or maintenance records A spectrographic analysis of the engine oil is available from several sources This inspection if performed properly provides a good check of the internal condition of the engine To be accurate induction air filters must be cleaned or changed regularly and oil samples must be taken and sent in at regular intervals ISSUED DECEMBER 16 1976 REPORT 880 REVISED APRIL 25 2005 8 3 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING A
12. artment Any correspondence regarding the airplane should include the airplane model and serial number to insure proper response REPORT VB 880 ISSUED DECEMBER 16 1976 8 2 REVISED APRIL 25 2005 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE ee e n P VQ 83 AIRPLANE INSPECTION PERIODS WARNING All inspection intervals replacement time limits overhaul time limits the method of inspection life limits cycle limits etc recommended by PIPER are solely based on the use of new remanufactured or overhauled PIPER approved parts If parts are designed manufactured remanufactured overhauled and or approved by entities other than PIPER then the data in PIPER S maintenance service manuals and parts catalogs are no longer applicable and the purchaser is warned not to rely on such data for non PIPER parts All inspection intervals replacement time limits overhaul time limits the method of inspection life limits cycle limits etc for such non PIPER parts must be obtained from the manufacturer and or seller of such non PIPER parts Piper has developed inspection items and required inspection intervals for the PA 28 see the latest revision of the PA 28 Service and Inspection Manuals The PA 28 Inspection Manual contains appropriate forms and all inspection procedures should be complied with by a properly trained knowledgeable and qualified mechanic at
13. d the nose gear carries a 5 00 x 5 wheel All three tires are four ply rating type III tires with tubes Refer to paragraph 8 23 Wheels are removed by taking off the hub cap cotter pin axle nut and the two bolts holding the brake segment in place Mark tire and wheel for reinstallation then dismount by deflating the tire removing the three through bolts from the wheel and separating the wheel halves Landing gear oleos should be serviced according to the instructions on the units The main oleos should be extended under normal static load until 4 50 25 inches of oleo piston tube is exposed and the nose gear should show 3 25 25 inches Should the strut exposure be below that required it should be determined whether air or oil is required by first raising the airplane on jacks Depress the valve core to allow air to escape from the strut housing chamber Remove the filler plug and slowly raise the strut to full compression If the strut has sufficient fluid it will be visible up to the bottom of the filler plug hole and will then require only proper inflation Should fluid be below the bottom of the filler plug hole oi should be added Replace the plug with valve core removed attach a clear plastic hose to the valve stem of the filler plug and submerge the other end in a container of hydraulic fluid Fully compress and extend the strut several times thus drawing fluid from the container and expelling air from the strut chamber To allo
14. e plane when the rudder pedals and rudder are centered Alignment of the nose wheel can be checked by pushing the airplane back and forth with the rudder centered to determine that the plane follows a perfectly straight line The turning arc of the nose wheel is 30 0 2 in either direction and is limited by stops on the bottom of the forging The rudder pedal arm stops should be carefully adjusted so that the pedal arms contact the stops just after the rudder hits its stops This guarantees that the rudder will be allowed to move through its full travel REPORT VB 880 ISSUED DECEMBER 16 1976 8 10 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE a eee 8 17 PROPELLER SERVICE The spinner and backing plate should be cleaned and inspected for cracks Before each flight the propeller should be inspected for nicks scratches and corrosion If found they should be repaired as soon as possible by a rated mechanic since a nick or scratch causes an area of increased stress which can lead to serious cracks or the loss of a propeller tip The back face of the blades should be painted when necessary with flat black paint to retard glare To prevent corrosion the surface should be cleaned and waxed periodically 8 19 OIL REQUIREMENTS The oil capacity of engine is 8 quarts and the minimum safe quantity is 2 quarts It is recommended that engine oil be drained and renewed every 50 hours The
15. facturer should be used Except for the information contained in this section the manufacturer s mixing or blending instructions should be carefully followed CAUTION Assure that the additive is directed into the flowing fuel stream The additive flow should start after and stop before the fuel flow Do not permit the concentrated additive to come in contact with the aircraft painted surfaces or the interior surfaces of the tanks Some fuels have anti icing additives pre blended in the fuel at the refinery so no further blending should be performed Fuel additive can not be used as a substitute for preflight draining of the fuel system drains REPORT VB 880 ISSUED DECEMBER 16 1976 8 12 REVISED MAY 30 1980 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE FUEL DRAIN Figure 8 3 c Filling Fuel Tanks Observe all required precautions for handling gasoline Fuel is stored in two twenty five gallon 24 usable tanks d Draining Fuel Strainer Sumps and Lines The fuel system sumps and strainer should be drained daily prior to the first flight and after refueling to avoid the accumulation of contaminants such as water or sediment Each fuel tank is equipped with an individual quick drain located at the lower inboard rear corner of the tank The fuel strainer is equipped with a quick drain located on the front lower corner of the firewall Each of the fuel tank sumps shou
16. h Do not use a circular motion 5 A severe scratch or mar in plastic can be removed by rubbing out the scratch with jeweler s rouge Smooth both sides and apply wax e Cleaning Headliner Side Panels and Seats 1 Clean headliner side panels and seats with a stiff bristle brush and vacuum where necessary 2 Soiled upholstery except leather may be cleaned with a good upholstery cleaner suitable for the material Carefully follow the manufacturer s instructions Avoid soaking or harsh rubbing CAUTION Solvent cleaners require adequate ventilation 3 Leather should be cleaned with saddle soap or a mild hand soap and water f Cleaning Carpets To clean carpets first remove loose dirt with a whisk broom or vacuum For soiled spots and stubborn stains use a noninflammable dry cleaning fluid Floor carpets may be removed and cleaned like any household carpet 8 29 COLD WEATHER OPERATION For cold weather operation a winterization plate is installed on the inlet opening of the oil cooler This plate should be installed whenever the ambient temperature reaches 50 F or less The plate should be removed and stored in the cockpit when the ambient temperature exceeds 50 F It is recommended that an optional Engine Breather Tube Winterization Kit be installed for cold weather operation This kit is available through your Piper Dealer Distributor REPORT VB 880 ISSUED DECEMBER 16 1976 8 16 REVISED MAY 30 1980
17. ld be drained first Then the fuel strainer should be drained twice once with the fuel selector valve on each tank Each time fuel is drained sufficient fuel should be allowed to flow to ensure removal of contaminants This fuel should be collected in a suitable container examined for contaminants and then discarded CAUTION When draining any amount of fuel care should be taken to ensure that no fire hazard exists before starting the engine After draining each quick drain should be checked to make sure it has closed completely and is not leaking ISSUED DECEMBER 16 1976 REPORT VB 880 REVISED MAY 30 1980 8 13 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II e Draining Fuel System The bulk of the fuel may be drained from the system by opening valve at the inboard end of each fuel tank Push up on the arms of the drain valve and turn counterclockwise to hold the drain open The remaining fuel in the system may be drained through the filter bowl Any individual tank may be drained by closing the selector valve and then draining the desired tank 8 23 TIRE INFLATION For maximum service from the tires keep them inflated to the proper pressures 30 psi for the nose gear and 24 psi for the main gear All wheels and tires are balanced before original installation and the relationship of tire tube and wheel should be maintained upon reinstallation Unbalanced wheels can ca
18. ngine Air Filter When replacing the filter install the filter in the reverse order of removal 8 13 BRAKE SERVICE The brake system is filled with MIL H 5606 petroleum base hydraulic brake fluid The fluid level should be checked periodically or at every 50 hour inspection and replenished when necessary The brake reservoir is located on the fire wall in the engine compartment If the entire system must be refilled fill with fluid under pressure from the brake end of the system This will eliminate air from the system No adjustment of the brake clearances is necessary If after extended service brake blocks become excessively worn they should be replaced with new segments REPORT VB 880 ISSUED DECEMBER 16 1976 8 8 PIPER AIRCRAFT CORPORATION SECTION 8 PA 28 161 CHEROKEE WARRIOR II HANDLING SERVICING AND MAINTENANCE 1 BRAKE RESERVOIR 8 LINE INLET 2 RIGHT BRAKE AND RUODER PEDAL 9 CLEVIS PIN 3 LEFT BRAKE AND RUODER PEDAL 10 MASTER CYLINDER ASSEMBLY 4 RIGHT BRAKE CYLINDER 11 BOLT ASSEMBLY 5 LEFT BRAKE CYLINDER 12 TORQUE TUBE 6 BRAKE HANOLE 13 5 RIGHT BRAKE AND RUDDER PEDAL 7 RELEASE BUTTON 14 LEFT BRAKE AND RUDDER PEDAL BRAKE SYSTEM Figure 8 1 ISSUED DECEMBER 16 1976 REPORT VB 880 8 9 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II 8 15 LANDING GEAR SERVICE The main landing gears use 6 00 x 6 wheels an
19. oil filter element should be changed every 50 hours of operation The interval between oil and oil filter changes should not exceed a total of four 4 months Under unfavorable dusty conditions the oil and oil filter should be changed more frequently The following seasonal aviation oil grades and seasonal ambient temperature ranges are recommended MIL L 22851 Average Ambient MIL L 6082B Ashless Dispersant Temperature SAE Grade SAE Grades All Temperatures 15W 50 or 20W 50 Above 80 F 60 60 Above 60 F 50 40 or 50 30 F to 90 F 40 40 0 F to 70 F 30 30 40 or 20W 40 Below 10 F 20 30 or 20W 30 When operating temperatures overlap indicated ranges use the lighter grade oil NOTE Refer to the latest issue of Textron Lycoming Service Instruction 1014 Lubricating Recommendations for further information 8 21 FUEL SYSTEM a Servicing Fuel System At every 50 hour inspection the fuel screens in the strainer in the electric fuel pumps and at the carburetor inlet must be cleaned b Fuel Requirements AVGAS ONLY The minimum aviation grade fuel for the PA 28 161 is 100 Since the use of lower grades can cause serious engine damage in a short period of time the engine warranty is invalidated by the use of lower octanes Whenever 100 or 100LL grade fuel is not available commercial grade 100 130 should be used See Fuel Grade Comparison Chart Page 8 12 Refer to the latest issue of Lycoming Service Instruction No 10
20. round When using rope of non synthetic material leave sufficient slack to avoid damage to the airplane should the ropes contract CAUTION Use bowline knots square knots or locked slip knots Do not use plain slip knots NOTE Additional preparations for high winds include using tie down ropes from the landing gear forks and securing the rudder 6 Install a pitot head cover if available Be sure to remove the pitot head cover before flight 7 Cabin and baggage doors should be locked when the airplane is unattended ISSUED DECEMBER 16 1976 REPORT VB 880 8 7 SECTION 8 PIPER AIRCRAFT CORPORATION HANDLING SERVICING AND MAINTENANCE PA 28 161 CHEROKEE WARRIOR II 8 11 ENGINE AIR FILTER The wet type polyurethane foam air filter must be inspected at least once every fifty hours Under extremely adverse operating conditions it may be necessary to inspect the filter more frequently The filter is disposable and inexpensive and a spare should be kept on hand for a rapid replacement a Removal Of Engine Air Filter The filter is located in the lower right front of the engine compartment and may be removed by the following procedure 1 Open the right side of the engine cowling 2 Loosen each of the four quarter turn fasteners securing the air filter cover 3 Separate the cover and remove the filter 4 Inspect the filter If it is excessively dirty or shows any damage replace it immediately b Installation Of E
21. their airplane and keeping it in the best mechanical condition Consequently Piper from time to time issues service releases including Service Bulletins Service Letters Service Spares Letters and others relating to the airplane Service Bulletins are of special importance and Piper considers compliance mandatory These are sent directly to the latest FAA registered owners in the United States U S and Piper Service Centers worldwide Depending on the nature of the release material and labor allowances may apply This information is provided to all authorized Piper Service Centers Service Letters deal with product improvements and servicing techniques pertaining to the airplane They are sent to Piper Service Centers and if necessary to the latest FAA registered owners in the U S Owners should give careful attention to Service Letter information Service Spares Letters offer improved parts kits and optional equipment which were not available originally and which may be of interest to the owner Piper offers a subscription service for Service Bulletins Service Letters and Service Spares Letters This service is available to interested persons such as owners pilots and mechanics at a nominal fee and may be obtained through an authorized Piper Service Center or Piper s Customer Services Department Maintenance manuals parts catalogs and revisions to both are available from Piper Service Centers or Piper s Customer Services Dep
22. use extreme vibration in the landing gear therefore in the installation of new components it may be necessary to rebalance the wheels with the tires mounted When checking tire pressure examine the tires for wear cuts bruises and slippage 8 25 BATTERY SERVICE Access to the 12 volt battery is obtained by raising the rear seat and removing the cover of the battery box The plastic battery box has a drain tube which is normally closed off with a cap and which should be opened occasionally to drain off any accumulation of liquid The battery should be checked for proper fluid level DO NOT fill the battery above the baffle plates DO NOT fill the battery with acid use only water A hydrometer check will determine the percent of charge in the battery If the battery is not up to charge recharge starting at a 4 amp rate and finishing with a 2 amp rate Quick charges are not recommended 8 27 CLEANING a Cleaning Engine Compartment Before cleaning the engine compartment place a strip of tape on the magneto vents to prevent any solvent from entering these units 1 Place a large pan under the engine to catch waste 2 With the engine cowling removed spray or brush the engine with solvent or a mixture of solvent and degreaser In order to remove especially heavy dirt and grease deposits it may be necessary to brush areas that were sprayed CAUTION Do not spray solvent into the alternator vacuum pump starter or air intakes
23. w fluid to enter the bottom chamber of the main gear strut housing the torque link assembly must be disconnected to let the strut be extended a minimum of 10 inches the nose gear torque links need not be disconnected Do not allow the strut to extend more than 12 inches When air bubbles cease to flow through the hose compress the strut fully and again check fluid level Reinstall the valve core and filler plug and the main gear torque links if disconnected With fluid in the strut housing at the correct level attach a strut pump to the air valve and with the airplane on the ground inflate the oleo strut to the correct height In jacking the aircraft for landing gear or other service two hydraulic jacks and a tail stand should be used At least 250 pounds of ballast should be placed on the base of the tail stand before the airplane is jacked up The hydraulic jacks should be placed under the jack points on the bottom of the wing and the airplane jacked up until the tail skid is at the right height to attach the tail stand After the tail stand is attached and the ballast added jacking may be continued until the airplane is at the height desired The steering arms from the rudder pedals to the nose wheel are adjusted at the nose wheel by turning the threaded rod end bearings in or out Adjustment is normally accomplished at the forward end of the rods and should be done in such a way that the nose wheel is in line with the fore and aft axis of th
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