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0507270010/020821/D Flex-3 | Flex-4 | UltraFlex-3 | UltraFlex-4
10
Fig. 6.5
A
B
Hinge of the wall/unit side
6.3
Lubrication of the rotating hinge
To make sure that the rotating hinge can turn freely, you must
lubricate the axle regularly.
• (B) Apply grease into the grease nipple with a grease gun.
Recommended grease type: standard EP2 bearing grease
Fig. 6.6
B
Lubrication of the rotating hinge
7
TROUBLESHOOTING
If the product does not function (correctly), consult
the checklist below to see if you can remedy the
error yourself. Should this not be possible, contact
your supplier.
WARNING!
Obey the safety regulations that are written in
chapter 3 when you carry out the activities below.
Symptom
Problem
Possible
cause
Solution
General
Extraction
capacity is
insufficient
Pollution of
the facility
Throttle valve is
closed
Open the throttle
valve
Flexible hose(s)
torn or loose
Replace flexible
hose(s) or install
correctly
Rubber seal(s)
torn or installed
incorrectly
Replace rubber
seal(s) or install
correctly
Outside air is
extracted into
the connected
duct system
Make the duct
system airtight
Symptom
Problem
Possible
cause
Solution
Extraction
hood not in
balance
Hood does
not stay in
the desired
position
Not enough
friction
Adjust the friction
of the hood hinge;
refer to paragraph
You cannot
move the
hood in the
desired
position
Too much
friction
Entire arm
(both arm
sections) falls
down
Arm does not
stay in the
desired
position
Spring tension
too low
Increase the spring
tension of the hinge
at the wall/unit
side; refer to
paragraph 6.2.3
Flex-3 | Flex-4
Extraction
arm creaks or
squeaks
Arm does not
move
smoothly
Insufficient
lubrication
Lubricate the hinge
Movement
problem of
the hood side
of the arm
Friction in the
middle hinge
Not enough
friction due to
aging
Adjust the friction
in the middle
hinge; refer to
paragraph 6.2.2
Too much
friction
Too much
friction due to
pollution
Clean the friction
mechanism in the
middle hinge
UltraFlex-3 | UltraFlex-4
Extraction
arm creaks or
squeaks
Arm does not
move
smoothly;
excessive
wear of parts
Insufficient
lubrication
Lubricate the hinge
V (C) on page 14
Lubricate the steel
cable near the
BalanceWheel;
The hood side
of the arm
falls down
Arm does not
stay in the
desired
position
Spring tension
too low
Increase the spring
tension; refer to
paragraph 6.2.2
8
SPARE PARTS
The following spare parts are available for the
products;
8.1
Flex-3 | Flex-4
Refer to exploded view Fig. VI on page 15 and the spare
8.2
UltraFlex-3 | UltraFlex-4
Refer to exploded view Fig. VII on page 17 and the spare
9
DISPOSAL
After life of the product, dispose of it in accordance
with federal, state or local regulations.