0000111691/011121/B MonoGo
7
• Put the unit on (ref. Fig. 5.1C).
•
Start welding.
•
When the welding position changes, move the hood to the
correct position in relation to the weld.
WARNING
To keep the welding fume away from the breathing
zone of the welder, make sure that all fume is
extracted through the hood.
• Put the unit off approx. 20 seconds after you have finished
welding.
When the airflow is too low during use, the buzzer (ref. Fig.
5.1A) emits an acoustic alarm. Refer to chapter 7 to find the
possible cause and the solution.
ATTENTION
If you do not replace the pre filter and/or the HEPA
filter cassette in time, the airflow (extraction
capacity) further drops.
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. If you observe the necessary caution
and carry out the maintenance at regular intervals, any
problems occurring will be detected and corrected before they
lead to a total breakdown.
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=6
X=12
Filter unit
Housing
Clean the outside with a
non-aggressive detergent
X
Clean the inside with an industrial
vacuum cleaner and remove dust
from the filter compartment
X
Check sealing material of the
door. Replace if necessary
X
Extraction
fan
Check for encrusted particles.
Clean if necessary
X
Mains cord
Check for damage. Repair or
replace if necessary
X *)
Extraction arm
Tubes
Clean the outside with a
non-aggressive detergent
X
Clean the inside thoroughly
X
Flexible
hoses
Check for cracks or damages.
Replace if necessary
X
Hood
Check the movement of the hood.
If necessary, adjust the friction;
refer to paragraph Fig. VI
X
Component Action
Frequency:
every X months
X=6
X=12
Arm
movement
Check horizontal, vertical and
diagonal arm movement. If
necessary, adjust the friction;
refer to paragraph 6.3
X
*) Before every use
6.2
Filter replacement
The buzzer emits an acoustic signal when the
airflow is too low.
Make sure that:
-
the shut-off damper is open
- the extraction arm is not fully folded
When the buzzer still continues, you must replace the filter
cassette(s).
As the pre filter is smaller and becomes more quickly saturated
than the HEPA filter, you can replace the pre filter cassette
several times before you finally need to replace the HEPA filter
cassette.
Personal protective equipment (PPE)
Wear respiratory protection and protective
gloves when you replace the filter
cassettes.
WARNING
Do
not
replace the filter cassettes while the fan is
running.
WARNING
Do
not
shake out or (vacuum) clean the used filter
cassettes to avoid the release of particles.
6.2.1
Pre filter cassette
To replace the pre filter cassette, do the following.
•
De-energize the unit.
• Open the door (A).
• Remove the pre filter cassette (B).
• Dispose of the used filter cassette in accordance with state
or local regulations.
• Put a new pre filter cassette in the unit. Make sure that the
arrow on the frame points upwards
6
.
• Close and lock the door.
Fig. 6.1
B
A
Replacement of the pre filter cassette
6.
The arrow indicates the airflow direction
