J.P. Instruments Fuel Scan 450 Installation Manual - Manual (Page 4)

J.P.Instruments Fuel Flow Installation Manual
Report # 400
FS-450 Page 4 of 16
Rev A : Date 02/1/2002
4 Mounting Procedure 700921
1. Find a convenient location within 8" of a hose support or fitting and away from any hot exhaust pipes to suspend
the Fuel Flow Transducer. The hose support or fitting may be on the input or output line of the Flow Transducer.
2. Remove the fuel hose which goes from the Fuel Pump to the Carburetor (or Fuel Servo).
3. Purchase two new hoses, one from the fuel pump (or the Fuel Filter) to the Fuel Flow Transducer and the other
from the Fuel Flow Transducer to the carburetor (or fuel servo). There must be flexible hose in and out of the
Transducer. The hoses must meet TSO-C53a Type C or D FAA specification. The new hoses must be the
same size as the current hose in the aircraft.
4. Before connecting fuel hose to the carburetor, verify that the boost pump delivers at least 125% of takeoff fuel
consumption at minimum fuel pressure as marked on fuel pressure gage.
5. Mount the Fuel Flow Transducer in the fuel line. The Flow Transducer must be wrapped with Fire Sleeving
available at JPI.
Place a small hole in the fire sleeve and pass the transducer wires through it. Seal with High
temperature Silicone RTV sealant
6. For best results it is advisable to have two inches of straight tube just before the inlet to the transducer
J.P.INSTRUMENTS
PO Box 7033
Huntington Beach CA 92646
Title : Installation of a Fuel Flow Transducer in the fuel line from the
fuel pump to the carburetor or fuel servo.
Drawing No. 700921
Date
02/14/97
Drawn Approved Rev NC
Fuel injector
Existing Fitting
TRANSDUCER
To Engine Driven Fuel
Pump Existing
8" max from
support
2-AN816- Pipe to
Flare fitting. Do not
use aluminum fittings New 303Aeroquip hose Aeroquip Fire Sleeve
AE102/624-24
MS21919 Clamp
as required
Aeroquip
900591B Clamp