Welcome to J.L. OSBORNE INC.
| |
|
|
|
OSBORNE Kit P/N
4009-1, -2 and –3 Piper Comanche models PA24-180, PA24-250, PA24-260
OSBORNE Tip Tank kit(s) and installation requires
removal of the factory selector valve and replaced by the OSBORNE fuel
selector valve assembly.
OSBORNE fuel selector valve assembly accommodates
the added Tip Tanks. This
fuel selector assembly consists of two (2) each selector handles.
Each handle is used to select its respective fuel tank side i.e.
Right hand handle selects RH Tip Tank, wing aux tank (if installed) and
RH main tank, Left hand respectively .
The advantage of this design allows any individual tank
selection.
|
Description
|
Probable Cause
|
Correction
|
|
Selector valve(s)
turns hard
|
Worn out |
Replace
|
|
Valve handles hit each
other when selecting cross feed (both tips) |
Wrong handles and or
valve assembly |
Replace with correct assembly
|
|
Valve is hard to turn
|
Worn out/dry
|
Grease seat and replace
shaft seal |
|
Fuel stain at selector
shaft |
Worn out/dry |
Grease seat and replace
shaft seal |
|
Fuel bypassing valve
|
Worn out, foreign
Debris caught in seat |
Replace valve
|
|
Handle is loose
after
installation of new
clevis pin
|
Worn out handle
and or selector valve
shaft |
Replace handle/valve
assembly |
|
Valve handle is attached
to selector shaft with a
screw on type (handle)
|
Non approved valve |
Replace with approved
part assembly
|
|
Valve turns with no feel
or tank position
detenting |
Wrong selector valve body or worn
out detent
assembly |
Replace with approved
part assembly |
|
Fuel gauge: See 55027
Fuel Transmitter: see
55025
OSBORNE Kit P/N 12070-1
Comanche PA30 and PA39
Brief Description: Tip Tank fuel lines are routed inboard to
just outboard of the main selector valve were the OSBORNE “Aux
Tip valve” is located, splicing the two (2) tanks.
The feed from these tanks are controlled by the cockpit
“Aux Tip” selector switch and of course the main selector valve
selected to “Aux”.
|
|
Description
|
Probable Cause
|
Correction
|
|
Tip Tank fuel is
bypassing (siphoning) into wing Aux |
Bad Aux Tip Valve |
Replace
|
|
Tip Tank will not feed
|
1. Clogged vent line
2. Aux Tip valve bad Tip selector (electoral) switch
3. Faulty Aux
4. Check power source
to Aux Tip valve |
Clean
Replace
Replace
Replace |
|
Fuel Transmitter: see 55025 |
|
|
|
|
|
