Fuel Pressure Gauge Check; Fuel Pressure Gauge And Calibration Diagram - Piper PA-44-180 SEMINOLE Maintenance Manual

FUEL PRESSURE GAUGE CHECK .

1. With electrical power off, the fuel pressure gauge shall indicate the dot ± 1/2 needle width.
2. Apply positive 14 VDC to the electrical buss. Each needle should move to a position below the red line at
1/2 pounds per square inch.
3. Place the electrical fuel pump switches in the "ON" position. With fuel in the tanks, the gauge should
indicate between the 13 and 35 PSI radial lines.
B947
CALIBRATION
GRADUATION OHMS
DOT MECH ZERO
1/2 11.50
5 42.0
8 60.0
10 72.0
1/2
LEFT FUEL PRESS PSI
Figure 28-7a. Fuel Pressure Gauge and Calibration (Aircraft S/N 44-95001 and up.)
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
RED
GREEN
Figure 28-7. Fuel Pressure Gauge and Calibration
DEGREES TOLERANCE
-39° ±1/2
-28° -1, +0
+10° ±1
+25° -0, +1
+32° ±1
5 8 10
1/2
LEFT FUEL PRESS PSI
CALIBRATION ACCESS
HOLES
CALIBRATION 1
GRADUATION OHMS
DOT MECH ZERO
0 10
13 43
35 94
1
CALIBRATE AT 14.5 VOLTS WITH PLANE OF
DIAL FACE VERTICAL ± 5°. USE WITH
ROCHESTER GAUGE 3060-23 SENDER.
2
TOLERANCE IN POINTER WIDTHS.
TOLERANCE IN
POINTER WIDTHS.
RED
5 8 10
2B16
TOLERANCE 2
DEGREES
-40 ± 1/2
-32 1/2 ± 1/2
-3.6 -1 + 0
+32 +1 - 0
NOTES
NOTE:
N
G
SEND 14V IGN
2 8 - 4 2 - 0 0
Page 28-21
Revised: May 15, 1989