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0507270010/020821/D Flex-3 | Flex-4 | UltraFlex-3 | UltraFlex-4
8
• Start welding.
• If desired, partly close the throttle valve to adjust the
airflow.
• When the welding position changes, move the hood to the
correct position in relation to the weld.
•
Turn off the connected extraction device approx. 20
seconds after finishing welding
13
.
B
A
B
A
A = max. 480 mm (19 in.)
B = > 480 mm (19 in.)
Fig. 5.2
Correct position of the hood
6
MAINTENANCE
6.1
Periodic maintenance
The product has been designed to function without
problems for a long time with a minimum of
maintenance. In order to guarantee this some simple, regular
maintenance and cleaning activities are required which are
described in this chapter.
WARNING!
Overdue maintenance can cause fire.
The indicated maintenance intervals can vary depending on
the specific working and ambient conditions. Therefore we
recommend to thoroughly inspect the complete product once
every year beside the indicated periodic maintenance. For this
purpose contact your supplier.
Component
Action
Frequency:
every X
months
X=3
X=6
General
Outside of
the arm
Clean with a non-aggressive detergent X
Flexible hoses Check for cracks or damages. Replace
if necessary
X
Inside of the
arm
Clean thoroughly
X
Throttle valve Check the functioning
X
Hood hinge
Check the horizontal and vertical
movement of the hood. If necessary,
clean the hood hinge or adjust the
friction; refer to paragraph 6.2.1
X
13. If you have an automatic start/stop (WL-AST or WCS), the extraction device
will stop automatically after a certain stop delay
Component
Action
Frequency:
every X
months
X=3
X=6
Rotating
hinge
Lubricate the axle; refer to paragraph
X
Steel cables
Check for wear
X
Flex-3 | Flex-4
Hinge points
Check and lubricate; refer to Fig. IV
X
Middle hinge
Check the friction. Adjust if necessary;
refer to Fig. IV (A) on page 13
X
UltraFlex-3 | UltraFlex-4
Hinge points
Check and lubricate; refer to Fig. V
X
Steel cable
near the
BalanceWheel
Check and lubricate; refer to Fig. V
X
Balance
construction
Check the balance of the extraction
arm. Adjust if necessary; refer to Fig.
X
6.2
Balance system
If the extraction arm, or a part of it, does not stay in the
desired position, you must adjust the friction and/or balance
system.
To examine and adjust the balance system, do the following.
• Pull the arm (including the hood) into a horizontal position.
• Fold the arm.
• Move the arm and hood up and down, left and right in
straight and folded position.
A
B
C
A
B
C
Arm on mobile unit
A
B
C
A
B
C
Arm on wall brackets
Fig. 6.1
Arm in horizontal position
In case you can easily move the entire arm
(incl. the hood) and it stays in any position,
the balance system is correctly adjusted.
For adjustment of the extraction hood (C):
• proceed with paragraph
For adjustment of the arm section (hood side) (B):
• proceed with paragraph
For adjustment of the arm section (wall/unit side) (A):
• proceed with paragraph