Piper SEMINOLE PA-44-180, Maintenance Manual

Page: 137 / 881

VIBRATOR.
The vibrators should be replaced after 250 hours of operation. This schedule applies equally to vibrators
installed in new units as well as new vibrators installed in ignition units that have been in service.
VIBRATOR REMOVAL AND INSTALLATION. (Refer to Figure 21-13)
1. Remove the clamp.
2. Remove the vibrator from the ignition unit; it may require a slight back-and-forth movement to remove it
from the unit. A piece of masking or friction tape around the exposed portion of the vibrator will help to
grip the vibrator for removal.
3. Install the new vibrator with the index marks aligned. The connector pins on the vibrator can be felt
entering the pin sockets in the vibrator socket, then press the vibrator fully and firmly into position.
Secure with the clamp.
— Note —
If replacement of vibrator fails to correct operational failure, further disassembly and
inspection may be required.
1
2
3
4
5
A269
1. COVER ASSEMBLY
2. IGNITION BOX
3. CLAMP
4. IGNITION COIL
5. VIBRATOR
Figure 21-13. Ignition Unit Assembly
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
2 1 - 4 3 - 1 8
Page 21-26
Revised: May 15, 1989
1F17
PIPER AIRCRAFT