Lincoln Electric LFA 3.0 Installation And User Manual page 10

6.2.1 Hood hinge
Friction too high
If it is difficult to move the hood, it is possible that the hood
hinge is polluted. In that case, do the following.
• Disassemble the flexible hose.
• Cut the cable ties and pull down the rubber protection
cover .
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• Clean the hood hinge.
• Adjust the friction (see instructions of Fig. 6.2).
• Install the protection cover over the hood hinge and attach
it with two new cable ties.
• Install the flexible hose. Make sure that the connection is
airtight.
Friction too low
If the hood does not stay in the desired position, you must
tighten the friction.
Fig. 6.2
• Disassemble the flexible hose.
• Cut the cable ties and pull down the rubber protection
cover.
• Determine which part of the hinge needs adjustment:
- vertical movement (A); or
- horizontal movement (B)
• Tighten the corresponding bolt and nut.
• Install the protection cover over the hood hinge and attach
it with two cable ties.
• Install the flexible hose. Make sure that the connection is
airtight.
A
B
Fig. 6.2 Hood hinge
6.2.2 Arm section (hood side)
To adjust the balance, you must disconnect the flexible hose of
the middle hinge. When it is done, install the hose and make
the connections airtight with the rubber seals.
LFA 3.0 and LFA 4.0 arms
Fig. 6.3 (also refer to Fig. 6.1B)
• Pull the arm (including the hood) into a horizontal position.
If the arm section falls down:
• Turn the bolt M8 (A) clockwise to tighten the friction.
14. If the rubber protection cover is damaged, you must replace it
0507270020/010921/A LFA 3.0 | 4.0 | 3.1 | 4.1
If the arm section is hard to move down:
• Turn the bolt M8 (A) counterclockwise to loosen the
friction.
If the arm section is hard to move up:
• Turn the bolt M8 (B) counterclockwise until you can move
up the arm section smoothly.
A B
Fig. 6.3 Middle hinge − LFA 3.0 | LFA 4.0
LFA 3.1 and LFA 4.1 arms
Fig. 6.4 (also refer to Fig. 6.1B)
• Pull the arm (including the hood) into a horizontal position.
If the arm section falls down:
• Tighten the bolt (A) to increase the spring tension.
Fig. 6.4 Middle hinge − LFA 3.1 | LFA 4.1
6.2.3 Arm section (wall/unit side)
To adjust the balance, you must disconnect the flexible hose of
the hinge at the wall/unit side. When it is done, install the
hose and make the connections airtight with the rubber seals.
Fig. 6.5 (also refer to Fig. 6.1A)
• Pull the arm (including the hood) into a horizontal position.
If the entire arm falls down:
• Tighten the bolt (A) to increase the spring tension. Make
sure that the spring (B) does not turn while you tighten the
bolt.
A
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