Fuel Sender Removal; Fuel Sender Installation; Fuel Cell Repair - Piper PA-24 Comanche Service Manual

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PIPER COMANCHE SERVICE MANUAL
CAUTION
:'t1ake certain the sencier resistor is connected to the proper side
of the gauge.
(b) Connect a 14-volt power supply to tile electrical system of ttw airplane.
(C)
Operate the power supply
and
ascertain tbe laup indicates one-half full.
(d) Repeat the procedure Ilailll a 3D-obm rHiator which should cauae the laule to
indicate fllil.
(e)
If the laqe
does eet
iadicate properly, it should
be
~placed.
8-10b. Re..o.ol
Of
Fuol
Send.,.
a.
Remove screws attachinc the oval cover plate to the
top of the wiq.
b. Disconnect electrical leads from the sender wt.
c. Remove screws
and . . .
hem auachinlsender to moatiq plate and
~tIlove
sender.
8-1Oc. Instoll.tion Of Fuel
Se.,.
a. Place the sender unit Iuket on mountiq plate aad iutall Hader.
b. Secme sender to mDW'ltinC plate with washers and screws.
e. Connect electrical lnds to sender.
d. Install cover plate and secure with screws.
CAUTIOH
No repairs are to
be
made on the radius of a cell or in the fittinl
area of a cell. Cells with such damep are to be returned to the
facrory for repairs. So damapd ar..s such as CIlts and tears
larger than 1 inch are to be repaired in the field.
a. Outside the Cell.
1. Use a piece of synthetic rubber coated fabric (U.S. Rubber Co. 5200 outside repair
material) large enCNlh to cover damaCe at least 2 inches from cut in any direction. Buff this
material lilhtlyalld thorolllhly with fine emery eloth(l80 lrit) and .ash with :\1ethyl Ethyl Ketone
solution (U.S. Rllbber Co. 3339) to remove buffinl dust.
2. Cement buffed side of patch with two coats of U.S. Rubber Co. 3230 cement or
~inne­
Sota Minin& Co. EC-678. Allow each coat to dry 10 to IS minutes.
3. Buff cell area to be patched lilhtly and thorouchly with fine emery cloth and wash 'Nith
3339 solunen to remove buffinl dust.
4. Cement buffed area with two coatS of U.S. Rubber Co. 3230 or
~innesota
}tininl Co.
EC·678 cement. Allow each coat to dry 10 to IS minutes.
3. Freshen cemented area of patch and cemented area of cell with 3339 Solution.
6. While still tacky. apply edge of patch. to edCe of cemented area on the cell. With a
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REVISED: 4/10/81
2 Jl
FUEL SYSTEM