Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 266

PIPER CHEROKEE WARRIOR SERVICE MANUAL
8-34. HARNESS ASSEMBLY.
8-35. INSPECTION OF HARNESS.
a. Check lead assemblies for nicks, cuts, mutilated braiding, badly worn section or any other evi-
dence of physical damage. Inspect spark plug sleeves for chafing or tears, and damage or stripped threads on
coupling nuts. Check compression spring to see if it is broken or distorted. Inspect grommet for tears. Check
all mounting brackets and clamps to see that they are secure and not cracked.
b. Using an ohmmeter, buzzer, or other suitable low continuity checking device to check continuity
of each lead . If continuity does not exist, replace wire(s).
c. Use a high voltage, direct current, high voltage teste,. capable of delivering a test potential of
10,000 volts, to make electrical test of harness assembly.
1. Connect ground lead to high voltage tester to outer shielding braid of a single lead.
2. Connect plug terminal.
3 . Turn tester "ON" and apply 10,000 volts. Insulation resistance should be 100 megaohms
m i n imum.
4. Proceed to check other leads of harness in same manner.
d. Minor repair of the harness assembly, such as replacement of contact springs, spring retainer
assemblies, insulating sleeves or of one lead assembly, can be accomplished with the harness assembly mounted
on the engine. If more than one lead assembly, or a cable outlet plate, requires replacement, remove harness
and send to an overhaul shop.
8-36. REMOVAL OF HARNESS
a. Disconnect clamps that secure wires to the engine and accessories.
b. Loosen coupling nuts at the spark plugs and remove insulators from the spark plug barrel well.
Use caution not to damage the insulator spring when withdrawing the insulator.
c. Place a guard over the harness insulators.
d. Remove the harness assembly terminal plate from the magneto.
e. Remove the harness from the airplane.
8-37. DISASSEMBLY OF HARNESS.
a. To remove Slick M-1455 spring from a damaged lead:
1. Turn the spring counterclockwise while pulling gently. The spring and the N1-1498 Electrode
Screw will also be removed from the end of the coiled conductor.
2. To separate the spring and the screw, hold the electrode screw with a pair of pliers and turn the
spring clockwise until it is through the threaded portion.
b. Remove the insulator sleeve from the end of the wire.
d. To remove a lead from the M-1569 Plug Wire Housing:
1. Cut the lead off close to the housing with diagonals or cutting pliers
2 Used a drift or punch to tap the ferrule loose from the housing.
Further service on the Slick harness will require the use of
Revised: February 28, 1995
NOTE
Do not reuse the M-1458 Drive Ferrule.
NOTE
Slick M1-1495 Service Tool Kit, obtained from:
SLICK ELECTRO INC.
530 Blackhawk Park Avenue
Rockford, Illinois 61101
1L2
Island Enterprises
POWER PLANT