(b)
Remove the electrical cable from the larger Teflon sleeve (keep the lacing tape in the sleeve).
(c)
Put the electrical cable through the smaller Teflon sleeve.
(d)
Make a crease (about one foot (30 cm) long) at the end of the smaller Teflon sleeve down to a smaller diameter (where you made the crease) so it will fit more easily in the larger Teflon sleeve.
(e)
Tie one end of the lacing tape to the creased end of the smaller Teflon sleeve. 1) Use the knot shown in SWPM 20-10-11 for "Assembly of Wire
Harnesses for High Vibration Areas" (Fig. 9).
(f)
Tie the other end of the lacing tape to a stationary object.
(g)
Pull and push the larger Teflon sleeve over the smaller Teflon sleeve. 1) Regularly smooth the larger Teflon sleeve down the length
of the smaller Teflon sleeve to prevent bunching.
S 426-014
(7) Replace the elbow and grommet if they have damage.
NOTE: Refer to SB 737-28-1120 for part substitution data.
____
S 486-015
(8) Connect the string back to the wiring and the sleeve.
(a) Put tape (as necessary) on the end of the wiring and socket contacts so that the wiring will go smoothly through the conduit.
NOTE: If you are installing a case ground wire in addition
____ to the three conductor cable, then pull the three conductor cable into the electrical conduit before you pull the ground wire in.
S 486-016
(9) Put tape on the entrance of the conduit at the front spar.
(a) This will protect the wiring from the sharp edge of the electrical conduit.
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S 426-017
(10) Carefully pull the wiring and sleeve through the conduit with the string.
NOTE: The only lubricants that are permitted for Teflon
____
sleeving are these:
-Talcum powder
-Cetyl Alcohol (Boelube)
-TFE Release Agent Dry Lubricant
No other substances are permitted on the wiring or the sleeving.
S 426-019
(11)
Install the socket contacts in the electrical connector (at the fuel boost pump end of the wires).
S 426-020
(12)
Attach the elbow to the fitting on the front spar.
NOTE: If you use a MS27557-3 or a MS27559-3 fitting, then
____ tighten its set screw to hold the fitting in the correct position.
S 426-021
(13) Install the wiring in the wire clamps.
(a) Make sure you have the Teflon sleeve in the first clamp after each end of the conduit.
S 416-023
(14)
If you removed the fuel boost pump to get access, then install it again (AMM 28-22-41/401).
S 416-022
(15)
Connect the electrical connector to the fuel boost pump.
F. Fuel Boost Pump Test
S 866-024
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6 Main Power Distribution Panel
1) BOOST PUMP TANK 1 FWD
2) BOOST PUMP TANK 2 FWD
3) BOOST PUMP TANK 1 AFT
4) BOOST PUMP TANK 2 AFT
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737-300/400/500MAINTENANCE MANUAL
5) BOOST PUMP CTR TANK LEFT
6) BOOST PUMP CTR TANK RIGHT
S 866-025
(2)
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