(a) Use the correct contact removal tool for the wire gage of the conductor and series connector (Fig. 810).
S 358-136-N00
(6) Do these steps to prepare each end of the new cable:
(a)
Cut the jacket of the new cable at the same location as the
jacket on the damaged cable.
(b)
Cut the braided shield of the new cable at the same location as the braided shield of the damaged cable. 1) Pull the braided shield around the cable as far back as the
braided shield on the damaged cable.
(c)
Cut the new cable wires at the same length as the wires of the damaged cable.
S 358-137-N00
(7)
Cut the damaged wires at each end of the damaged cable where the wires come out of the braided shield.
S 358-138-N00
(8)
Use the wire stripper to remove 0.276 inch (7 mm) of insulation from each end of the new wire (Fig. 811).
S 358-139-N00
CAUTION: DO NOT RELEASE THE LATCH FOR THE CRIMP TOOL POSITIONER IF THE
_______ TOOL FRAME HANDLE IS IN THE CLOSED POSITION. THE TOOL HANDLE MUST BE OPEN WHEN THE POSITIONER IS INSTALLED, REMOVED, OR RELEASED. INCORRECT USE CAN CAUSE DAMAGE TO THE POSITIONER AND CRIMP TOOL.
(9) Crimp the contacts on each end of the wire.
(a) Use the correct tool for the wire gage of the conductor and
series connector.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-50-00
ALL ú ú N01 Page 827 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
GROMMET
Connector Contact Removal
Figure 810
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-50-00
ALL ú ú N01 Page 828 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C20088
DATA PLATE
PUT CONTACT INTO THIS SIDE
A-A
WIRE INSULATION
Wire Contact Installation
Figure 811
C20090
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-50-00
ALL ú ú N01 Page 829 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 358-140-N00
(10) Install the contacts in the electrical connectors:
(a) Use the correct tool for the wire gage of the conductor and
series connector (Fig. 812).
S 718-141-N00
(11) Do a check of each contact to make sure they are installed correctly:
NOTE: Each contact should be resistant to a force of
____
7 to 13 pounds (31.1 to 57.8 newtons).
(a) Use the correct retention test tool, replacement pin, and
replacement socket tools.
1) Use the pin replacement tips when you do a test of the
socket contacts. 2) Use the socket replacement tips when you do a test of the pin contacts.
CAUTION:_______BE CAREFUL WHEN YOU DO A CHECK OF THE CONTACTS. INCORRECT USE OF THE RETENTION TEST TOOL CAN CAUSE DAMAGE TO THE CONTACT, CONNECTOR GROMMET, OR TEST TOOL.
(b)
Put the 16 or 20 gage retention test tool and replacement pin on the contact so they are in a straight line.
(c)
To get the most accurate results, keep this position when you do a test on each contact.
(d)
Apply pressure to the tool until you see that a minimum of half of the color-coded area is covered. 1) At this point, there is 10 pounds (44.5 newtons) of
pressure applied. 2) If the contact is still in the same condition and position, the contact is satisfactory.
(e)
Repeat the above steps for the other contacts.
