• The CAU range, if more than one wire is to be terminated.
NOTE: Refer to Subject 20-30-22 if more than one wire is to be terminated.
(2) Make a selection of a crimp tool from:
• Table 67 for small MS20659 terminal lugs
• Table 68 or Table 69 for large MS20659 terminal lugs.
(3) If the tool has an insulation crimp adjustment, set the adjustment of the tool. Refer to Paragraph
2.B.
(4) If the crimp tool basic unit is a power pump, adjust the pressure to make it satisfactory for the
crimp tool head. Refer to Table 41.
WARNING
IF THE PRESSURE OF THE POWER PUMP IS MORE THAN THE
MAXIMUM PRESSURE PERMITTED FOR THE CRIMP TOOL HEAD, AN
INJURY TO PERSONNEL CAN OCCUR.
CAUTION
IF THE PRESSURE OF THE POWER PUMP IS MORE THAN THE
MAXIMUM PRESSURE PERMITTED FOR THE CRIMP TOOL HEAD,
DAMAGE TO THE CRIMP TOOL HEAD CAN OCCUR.
(5) Remove the necessary length of the insulation from the end of the wire.
Refer to:
• Figure 28
• Subject 20-00-15 for the insulation removal procedures
Make sure that:
• When the wire is in the terminal lug, and the end of the wire insulation is in the insulation
grip of the terminal lug, the end of the conductor extends 0.06 ± 0.03 inch farther than the
end of the crimp barrel
• If the terminal lug does not have an insulation grip, the maximum distance from the end of
the wire insulation of a single wire to the end of the crimp barrel is 0.12 inch for AWG 10 and
smaller, and 0.25 inch for AWG 8 and larger
• The clearance from the end of the conductor is sufficent for the installation of the washer
and the nut
• The conductor does not have nicked or cut strands
• If the insulation is removed by the application of heat, the conductor has not moved from the
center of the wire
• If the insulation is removed by the application of heat, the remaining insulation does not
have blisters or evidence of overheating
• The remaining insulation is not frayed.
ASSEMBLY OF INSULATED AND UNINSULATED TERMINAL LUGS
707, 727-787
STANDARD WIRING PRACTICES MANUAL
20-30-11
Page 103
Oct 15/2017D6-54446
ECCN 9E991 BOEING PROPRIETARY - See title page for details
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