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2) If the thrust wire is damaged or too tight, cut the tube nut off the end of the tube. 3) If the tube nut has a plain thrust wire, cut the tube nut off the end of the tube.
(d) If it is necessary, cut the tube nut off the end of the tube as follows (Fig. 801, Sheet 1). 1) Support the tube nut on a hard work surface or in a
soft-jaw vise.
CAUTION: BE CAREFUL WITH THE CUT-OFF WHEEL NOT TO CAUSE DAMAGE
_______ TO THE FERRULE OR FITTING ON THE TUBE. IF YOU DAMAGE THE FERRULE OR FITTING, THE TUBE MUST BE REPLACED.
2) At a location a small distance outboard of the thrust wire, cut around the tube nut with a high speed cut-off wheel until you see the thrust wire.
3) Remove the thrust wire and nut from the tube.
S 428-003-N00
(2) Install a new tube nut and thrust wire as follows (Fig. 801, Sheet 2).
(a)
Put the new tube nut onto the tube ferrule or fitting and support the nut on a work bench or in a soft-jaw vise.
(b)
Use a strong light or a small test wire to be sure that the thrust wire hole in the tube nut will let the wire go against (but not into) the radius on the ferrule or fitting.
CAUTION: BE CAREFUL THAT THE TUBE NUT IS IN THE CORRECT POSITION
_______ BEFORE YOU INSTALL THE THRUST WIRE. IF THE TUBE NUT IS NOT IN THE CORRECT POSITION, THE THRUST WIRE WILL NOT GO INTO THE TUBE NUT.
(c) Install the thrust wire into the tube nut as follows.
1) Some thrust wires go into their holes very easily and it will only be necessary to tap the wire into position (use a non-ferrous tool, for example, a brass mallet).
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FERRULE
CUT
NUT TUBE
THRUST WIRE
SEE A FERRULE NUT TUBE FERRULE SEE NUT TUBE B
TYPE 1 DETAIL OF TUBE NUT AFTER CUT TYPE 2
CUT
THRUST WIRE THRUST WIRE CUT
A B
Thrust Wire Installation Figure 801 (Sheet 1) L-B2803 (0000)
F92493
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THRUST WIRE WITH A LARGE CIRCULAR END
THRUST WIRE WITH A LARGE RECTANGULAR END OR
PLAIN OR
THRUST
WIRE
FERRULE
TUBE NUT
ASSEMBLE THE PLAIN THRUST WIRE FLUSH OR BELOW THE OUTSIDE SURFACE OF THE NUT.
ASSEMBLE THE THRUST WIRE WITH A LARGE RECTANGULAR OR CIRCULAR END SO THAT THE SHOULDER TOUCHES THE TUBE NUT. (USE OF AIR HAMMER AND ANVIL NOT REQUIRED).
TUBE
NUT TUBE NUT
FERRULE
FERRULE
L-B2803 (0000) TYPE 1 TYPE 2 TYPICAL DETAILS BEFORE THRUST WIRE INSTALLATION
TUBE
NUT
THRUST TUBE
THRUST WIRE NUT
WIRE
FERRULE
FERRULE
TYPE 1 TYPE 2 TYPICAL DETAILS AFTER THRUST WIRE INSTALLATION
PWA 21411 ANVIL
BANTAM BULLY AIR HAMMER
L-A6327 (0296)
Thrust Wire Installation Figure 801 (Sheet 2)
F45582
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2) For tight thrust wires, use the air hammer and anvil.
NOTE: With this type of power tool do not bend the
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