PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 8
Nov 30/06
5C14
74-10-00
(c) Inspect the distributor block for cracks or other physical damage. Replace, as required.
(d) Inspect the brass electrode posts for signs of physical wear. Replace block assembly, as
required, but note that during normal operation, the post will experience an electrical-
metal transfer with the distributor gear electrode.
(e) Inspect oilite bushing for gumming oil. The bushing should be free of contamination and
the gear should turn freely in the distributor block with no appreciable drag. If the bushing
is gummed, wipe the bushing with MEK and lubricate with one drop of Exxon Teresstic
100 or Slick P/N M-3306. No other oils should be placed in these bushings.
(f) Ensure the distributor block surfaces are free of all oil and carbon dust prior to
reassembly.
(g) Inspect distributor gear teeth for wear and general integrity. Replace block assembly as
required.
(h) Inspect the electrode finger for looseness. The electrode should be held securely to the
shaft when tested with light finger pressure. If loose, replace block and gear.
(i) Clean the end of the electrode to remove
electrical deposits.
(j) Inspect bearing bar for cracks or other physical
damage. Replace as required.
(k) Ensure the bearing bar is free of all and carbon
dust prior to reassembly.
(9) Inspect the carbon brush. Overall length must be
greater than 19/64 (.297) inch and the outside
diameter must be uniform (see Figure 7). Replace as
required.
(10) Inspect the loading spring. Overall free standing length should be greater than 19/32 (.594)
inch. Springs that appear worn, that have flat spots or are too short must be replaced.
Carbon Brush Assembly
Figure 7
To Next Page
Loading...
