Lincoln Electric 50448 Service Manual page 67

DISASSEMBLY OPERATIONS (continued)
USER INTERFACE BOARD REMOVAL AND REPLACEMENT PROCEDURE
A
C
C
Figure 1
B
Figure 1a
REMOVAL PROCEDURE
Necessary tools:
- 8mm nut driver
- 14mm wrench
- 2 mm allen wrench
- Torx T25
- PH02 screwdriver
1. Remove main input power from the Wire Feeder.
2. Using the PH02 screwdriver remove the 2 screws (A) that are fixing the red small plastic part of the handle. See
Figure 1
3. Using the PH02 screwdriver remove the screw (B) that is fixing the plastic frame to the metal handle. See Figure
1a
4. Using the torx T25 wrench remove the 6 screw (C). Two on the front upper left and right corners frame, two on the
bottom of the front plastic frame and last two on the top of the front plastic frame. See Figure 1.
5. Carefully remove the plastic frame (D) from the feeder. See Figure 1.
6. Using the 2 mm allen wrench remove the two knobs. See Figure 1b.
7. Using the a 10 mm wrench to remove the two encoder nuts (E). See Figure 1b.
8. Using the Torx T25 wrench remove the 2 screws (F) from the bottom of the plastic front panel. See Figure 1c
9. Carefully pull the plastic front panel and remove it.
For LF52D
Figure 1b
D
Use 2 mm Allen wrench to loosen the
screw from the two knobs
E
F
Figure 1c