Design For Seal Plates, Plugs, Caps For Combustion Tube Leakage Test; Test Setup For Combustion Air Pressure Switch - Piper PA-44-180 SEMINOLE Maintenance Manual

387
4.20
DIA.
COMBUSTION HEAD
OPENING
WING NUT
FLAT WASHER
RUBBER STOPPER
DRILL FOR BOLT
FLAT WASHER
BOLT
Figure 21-16. Suggested Design for Seal Plates, Plugs, and Caps for Combustion Tube Leakage Test
427
AIR SUPPLY
Figure 21-17. Test Setup for Combustion Air Pressure Switch
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
.19 DIA. HOLES
(6 EQUALLY SPACED)
3.62
DIA.
.125
THICK STOCK
EXPANSION PLUG
1
1. WATER MANOMETER
2. OHMMETER
3. NEEDLE VALVE
4. TEE
5. PRESSURE TAP (OPEN)
6. ADJUSTING SCREW (UNDER COVER)
7. COMBUSTION AIR PRESSURE SWITCH
3
1G1
SEAL CAP
2
4
5
7
Revised: May 15, 1989
RUBBER
STOPPER
DRILL OUT TO
NECESSARY
DIAMETER
CLAMP
6
2 1 - 4 4 - 0 3
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