Lincoln Electric IM990 MAGNUM PRO 350 and 550 FUME GUNS - Manual (Page 21)

D-4 MAINTENANCE D-4
6. Remove the two trigger terminals from the modular
trigger terminal housing.
7. Remove the incoming connector assembly (see
Item 8 Figure A.4, Installation Section) from the gun
cable.
8. Remove the damaged gun cable by sliding it rear-
ward from the vacuum hose.
9. Install the new gun cable by sliding it forward
through the vacuum hose.
10. Reassemble gun by reversing steps 1 through 7,
noting the following:
• Route trigger leads per this section Trigger
and Accessory Switch Lead Routings
(see figure D.1)
.
• Installation torques for both the incoming
connector and gun tube assemblies: 10 to 12
ft.-lbs..
• The order of connection of the trigger termi-
nals (red and white leads) to the trigger
assembly or in the Y connector is unimpor-
tant (non-polarized connections).
• Reassemble the Y connector by reversing
steps shown in 5.
• Install a new liner if it does not meet the cut
dimensional range given per this section
Liner Assembly Cleaning or Replacement
.
MAGNUM™ PRO 350 and 550 FUME GUNS