Piper PA-28-161, Maintenance Manual

Page: 934 / 1104

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 12
Nov 30/06
5C18
74-10-00
(9) Remove bearings from shaft and discard
CAUTION: DO NOT DISASSEMBLE BEARING CAP ASSEMBLY SLICK PART NUMBER
M-3485. THIS ASSEMBLY HOLDS A DOUBLE-SHIELDED BEARING CAPTIVE
IN THE BEARING CAP AND IS PRE-LUBRICATED AT THE FACTORY WITH
SPECIAL GREASE THAT TOLERATES THE OZONE RICH ENVIRONMENT
WITHIN THE MAGNETO.
CAUTION: DO NOT ALLOW ROTOR TO COME INTO CONTACT WITH METAL CHIPS OR
FILINGS. ROTOR IS MAGNETIZED.
(a) Place rotor on T-152 spacer with drive end down. Using T-125 assembly fixture, press
rotor shaft, removing bearing cap assembly.
(b) Reverse rotor shaft and insert T-121 bearing puller (both halves) between the drive end
bearing and the rotor magnet
head.
(c) Place rotor and T-121 on T-152
spacer.
(d) Press rotor shaft and remove drive
end bearing.
(10) Remove coil (See Figure 10.)
(a) Remove coil primary ground screw.
(b) Using coil wedge extractor T-122,
remove coil wedges and lift out coil.
(11) Remove air vent/pressure vent plug
from magneto.
(12) Remove oil seal from magneto.
E. Assembly
NOTE: The following par ts MUST BE
REPLACED at engine overhaul
(refer to Slick Service Bulletin No.
SB-2-80C). Condenser, drive end
bearing, bearing cap assembly,
impulse coupling, coil, rotor gear,
oil seal, contact point kit and
distr ibutor block and gear
assembly. Refer to Slick Part List
for part numbers. At each 500 hour inspection replace parts that are worn or damaged.
(1) Assemble new bearings onto shaft (see Figure 11.)
CAUTION: DO NOT ALLOW ROTOR TO COME INTO CONTACT WITH METAL CHIPS OR
FILINGS. ROTOR IS MAGNETIZED.
(a) Insert the base plate (T-117) and adapter plate bushing (T-119) into T-125 assembly
fixture.
(b) Place one drive-end bearing and one bearing cap assembly onto the rotor shaft.
(c) Insert the rotor shaft into the adapter plate bushing (threaded end down).
(d) Place the bearing assembly plug (T-101) onto the exposed end of the rotor shaft.
(e) Turn T-handle screw to seat the bearings against the bearing shoulders on the rotor shaft.
(f) Remove the rotor shaft, adapter bushing, adapter plate and bearing assembly plug from T-
125 assembly fixture.
Coil Wedge Removal
Figure 10