Installation Of Fuel Regulator 2K8; Heater Fuel Pump Maintenance - Piper SENECA II Service Manual

386
SUPPLY
REGULATOR
FUEL
SUPPLY
PIPER SENECA II SERVICE MANUAL
0-60 PSIG
GAGE
1/J
FLOW
0-15 PSIG
GAGE
FUEL
NOZZLE
S----0-
ELECTRICAL
- - - - - - - POWER SUPPLY
Figure 13-14. Test Setup for Fuel Regulator and Shutoff Valve
13-43. INSTALLATION OF FUEL REGULATOR.
a. Position the regulator into position between the fuel line and fuel pump. Ascertain that the inlet
side of the regulator is towards the fuel pump.
b. Connect the regulator to the pump and the heater fuel line to the regulator outlet port.
c. Connect the electrical leads from the regulator.
d. Operate the heater to make sure the unit is functioning properly. (Refer to Paragraph 13-5,
Heater System - Operational Test.)
13-44. HEATER FUEL PUMP MAINTENANCE. (Refer to Figure 13-15.) The maintenance required for
this type of fuel pump is very limited, consisting of inspection and replacing parts that are worn or broken.
13-45. REMOVAL OF HEATER FUEL PUMP. The heater fuel pump is located below the cabin floor
panel between the main and rear spar on the right side of the cabin. It is enclosed in a fiberglass
compartment which has a removable access cover.
a. Ascertain that the left fuel tanks are empty and the fuel selector controls are in the OFF
position.
b. Disconnect the electrical lead from the pump.
c. Disconnect the fuel line from the inlet end of the pump and the regulator from the outlet end.
Cap all open fuel lines to prevent contamination.
d. Remove the bolts which secure the pump to its mounting bracket.
Reissued: 10/11/79
HEATING AND VENTILATING SYSTEM
2K8