Piper SEMINOLE PA-44-180, Maintenance Manual

Page: 697 / 881

Figure 74-13. Checking Flyweight Axial Figure 74-14. Checking Flyweight Radial
Wear with Drill Shank Wear with Gauge
— NOTE —
A true and accurate check of the clearance between the flyweights and stop pins can
only be obtained by pulling the flyweight outward as described Do not attempt the
check by pushing in on the flyweight at point “A” of Figure 74-11.
2. Inspect impulse coupling stop pins for damage. If pins are bent, damaged or excessively worn, remove pins
using a suitable drift and arbor press. Press new pins into flange until dimension shown in Figure 7412 is
obtained.
3. Visually inspect flyweight securing washers and flyweights, particularly in area around the axle hole.for
cracks. Grip washers with pliers and exert moderate turning force to check looseness. If washer moves or
any cracks are found, reject cam assembly.
4. Inspect for axial wear between flyweight and axle using shank of a new No. 35 drill as a gauge. Hold
flyweight so the outer radius is in alignment with the rim of the cam flange and try to insert the drill shank
between the flange and flyweight as shown in Figure 7414. Do not force the drill. If the drill can be
inserted, replace the cam assembly.
No. 35 DRILL
FLYWEIGHT
GAUGE 11-10041
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
7 4 - 11 - 0 5
Page 74-15
Revised: May 15, 1989
3G8
PIPER AIRCRAFT