MAIN (Cont.)
B. Disassembly of Prestolite Hydraulic Pump. (Refer to Figure 3.) (cont.)
(2) Remove pump motor from pump and disassemble as follows:
(a) Remove through bolts from head of motor. Using a knife cut seal coating between motor
head and case.
(b) Lift the head up from case approximately 0.50 of an inch. This will allow inspection of
brushes without brushes unseating from commutator. (Refer to Cleaning, Inspection and
Repairs of Hydraulic Pump for brush inspection.) The brush leads are secured to the head
assembly.
(c) Raise head assembly off armature and note the small thrust ball located between end of
armature and motor head. Do not misplace this bearing.
(d) Draw armature from motor frame. Note number of thrust washers mounted on drive end of
armature shaft.
(e) Remove motor frame from pump reservoir.
(3) Remove valve and gear case from reservoir as follows:
(a) Remove eight screws from flange of body and separate the two assemblies.
(b) Pump gears and valves should be removed for cleaning purposes only. Remove cap secur-
ing gears by removing attaching bolts. The two valve springs should be positively identified
with their cavities to preclude the necessity of readjusting each valve for proper operating
pressure.
C. Cleaning, Inspection and Repairs of Prestolite Hydraulic Pump
– CAUTION –
Repair facilities must be clean to prevent contamination of
pump components. Proper and careful handling should be
exercised to prevent damaging pump components
(1) Discard all O-rings.
(2) Remove caps or plugs and clean all components with a dry type cleaning solvent and dry thor-
oughly.
(3) Inspect pump components for scratches, scores, chips, cracks and wear.
(4) Inspect motor for worn brushes (minimum of .218 brush remains between the braided wire and
commutator end), excess wear and excess bearing wear.
(5) Repairs are limited to O-ring and brush replacement as follows:
(a) One brush holder has the winding wire attached. Locate this wire and remove by using a sol-
dering gun.
(b) The head assembly can now be removed and worked on for ease of brush replacement if
required.
(c) Remove brush wire and brush from by-metal heat protector.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
29-10-00
Page 29-25
Reissued: July 1, 1993
2F21
Summary of Contents for PA-32R-301T SARATOGA S
Page 26: ...CHAPTER 4 AIRWORTHINESS LIMITATIONS 1C1 ...
Page 29: ...CHAPTER 5 TIME LIMITS MAINTENANCE CHECKS 1C4 ...
Page 53: ...CHAPTER 6 DIMENSIONS AND AREAS 1D6 ...
Page 64: ...CHAPTER 7 LIFTING AND SHORING 1D21 ...
Page 68: ...CHAPTER 8 LEVELING AND WEIGHING 1E1 ...
Page 72: ...CHAPTER 9 TOWING AND TAXIING 1E5 ...
Page 76: ...CHAPTER 10 PARKING AND MOORING 1E9 ...
Page 80: ...CHAPTER 11 REQUIRED PLACARDS 1E13 ...
Page 92: ...CHAPTER 12 SERVICING 1F1 ...
Page 126: ...CHAPTER 20 STANDARD PRACTICES AIRFRAME 1G17 ...
Page 127: ...THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 139: ...CHAPTER 21 ENVIRONMENTAL SYSTEMS 1H5 ...
Page 188: ...CHAPTER 22 AUTOFLIGHT 1J7 ...
Page 193: ...CHAPTER 23 COMMUNICATIONS 1J12 ...
Page 203: ...CHAPTER 24 ELECTRICAL POWER 1J22 ...
Page 263: ...CHAPTER 25 EQUIPMENT FURNISHINGS 2A13 ...
Page 269: ...CHAPTER 27 FLIGHT CONTROLS 2A20 ...
Page 332: ...CHAPTER 28 FUEL 2D11 ...
Page 363: ...CHAPTER 29 HYDRAULIC POWER 2E18 ...
Page 404: ...CHAPTER 30 ICE AND RAIN PROTECTION 2G16 ...
Page 470: ...CHAPTER 32 LANDING GEAR 3A13 ...
Page 550: ...CHAPTER 33 LIGHTS 3D24 ...
Page 562: ...CHAPTER 34 NAVIGATION AND PITOT STATIC 3E12 ...
Page 582: ...CHAPTER 35 OXYGEN 3F8 ...
Page 604: ...CHAPTER 37 VACUUM 3G6 ...
Page 616: ...CHAPTER 39 3G18 ELECTRIC ELECTRONIC PANELS MULTIPURPOSE PARTS ...
Page 620: ...CHAPTER 51 STRUCTURES 3G22 ...
Page 636: ...CHAPTER 52 DOORS 3H14 ...
Page 650: ...CHAPTER 55 STABILIZERS 3I4 ...
Page 662: ...CHAPTER 56 WINDOWS 3I16 ...
Page 670: ...CHAPTER 57 WINGS 3I24 ...
Page 688: ...CHAPTER 61 PROPELLER 3J18 ...
Page 704: ...CHAPTER 70 STANDARD PRACTICES ENGINES 3K10 ...
Page 708: ...CHAPTER 71 POWER PLANT 3K14 ...
Page 737: ...CHAPTER 73 ENGINE FUEL SYSTEM 4A13 ...
Page 749: ...CHAPTER 74 IGNITION 4B1 ...
Page 783: ...CHAPTER 77 ENGINE INDICATING 4C11 ...
Page 793: ...CHAPTER 78 EXHAUST 4C21 ...
Page 801: ...CHAPTER 79 OIL 4D5 ...
Page 805: ...CHAPTER 80 STARTING 4D9 ...
Page 819: ...CHAPTER 81 TURBINES 4D23 ...
Page 833: ...CHAPTER 91 CHARTS WIRING DIAGRAMS 4E13 ...