Page 31 - 1937-41 Piper J-3 Trainer Parts Catalog

PIPER TRAINER J-3 • 1937-1941 • PARTS MANUAL

FUSELAGE AILERON PULLEY INSTALLATION

Due to the wear of the lower aileron cable in the fuselage at fairleads of airplane serial numbers 1999 to 8277 it is suggested that the below
listed assembly be installed at major overhaul. This revision replaces fairleads with pulleys.

UNITS PER PART NAME NEW PART # OLD PART # PRICE
PLANE
1 SPECIAL ASSEMBLY NO. 54 KIT 750-253 NM!
1 Plate – Aileron Pulley Housing -20951-000 20951 13.36
1 Plate – Aileron Pulley Housing Flanged U20961-000 20961 29.08
1 Plate – Aileron Pulley Housing -20951-001 20951-1 13.36
1 Plate – Aileron Pulley Housing Flanged U20961-001 20961-1 12.8
2 Pulley – Fuselage Aileron – 1¾” U80421-000 80421 12.37
2 Bushing – Fuselage Aileron Pulley U80012-004 80012-4 7.45
2 Pulley Housing Cover U50042-000 50042 35.53

3
7
2 AN Bolts – ⁄16” x ⁄8” AN3-7 1
2 Castle Nut – ⁄16” AN310-3 1.5
3
4 Washer U81342-042 3.14
2 Cotter Pin – ⁄16” x ⁄2” AN380-2-2 0.04
1
1
BRAKE ASSEMBLY

UNITS PER PART NAME NEW PART # OLD PART # PRICE
PLANE
The following parts are required for the installation of the Rear Brake Assembly with floorboard reservoir using Hayes type Master
Cylinder.
2 BRAKE-SHOE ASSEMBLY – TYPE A 496-229 D-2-28 NM!
12 Brake – Block 750-032 B-27-15 NM!
2 Fairing – Inner 750-034 B-51-71 NM!
2 Flange – Brake frame 750-040 D-15-10 NM!
2 Frame – Brake -750-038 D-12-24 16.25
12 Nut – Elastic stop (10-32) 750-015 A-63-34 NM!
3
12 Screw – Fillister head (10-32 x ⁄8”) MS35266-61 A-18-7 0.38
2 Spacer – Nozzle 750-011 A-60-7 NM!
12 Spring – Retracting 750-007 A-21-14 NM!
2 Tube Assembly – Rubber B22-43S B-22-20 NM!
NOTE: Type A Brake-Shoe Assembly was used on ships equipped with brakes from ship serial number 1999 to 4411 inclusive.
2 BRAKE-SHOE ASSEMBLY – TYPE B D2-113S D-2-113 NM!
12 Brake – Block B27-59-1 B-27-59 73.02
2 Fairing – Inner B51-72 B-51-72 107.93
2 Flange – Brake frame D15-25 D-15-25 50.8
2 Frame – Brake D12-101 D-12-101 28.13
2 Nut – Elastic stop (10-32) 750-015 A-63-34 NM!

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