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Field of application
The type 7223 air hose balancer is used for relieving the
weight of hand-held compressed-air tools such as drilling
machines, thread cutters, electric screwdrivers, etc.
General information
The type 7223 air hose balancer greatly facilitates the han-
dling and use of hand-operated tools. The retracting forces
are almost constant over the entire extension length of the
hose.
The load range of the air hose balancer differs from one
design version to another. The rating plate (1) provides
range details.
System components
(1)
Name plate
(2)
Safety suspension
(3)
Anti-fall safety device
(4)
Safety chain
(5)
Hose clip (of hose stop buffer)
(6)
Shaft (for load adjustment)
Safety instructions
●
No changes may be made on the type 7223 balancer or
its accessories without the express written permission of
the manufacturer.
●
The safe use of this device is only ensured if you have
fully read these operating and safety instructions and
observe them strictly during work.
●
The hose balancer may only be operated, installed, servi-
ced and repaired by duly trained and instructed person-
nel. These persons must previously have been informed
about the potential risks associated with performing the-
se tasks.
●
Disassembling the spring housing is extremely dange-
rous and therefore strictly forbidden!
●
Only unhook a load when the hose is
fully
retracted.
●
Daily visual inspection for corrosion or damage is requi-
red for:
– Air hose
– Safety suspension (2)
– Anti-crash safety device (3)
– Safety chain (4)
The spring balancer, and in particular the air hose, must
be checked periodically, but at least once a year, for
potential damage by a competent person. If damage is
found, the balancer must be withdrawn from service
immediately!
●
Note that any snapping back of the hose in no-load con-
dition is extremely dangerous for persons and would also
destroy the spring. Be sure that the maximum load indi-
cated on the rating plate (1) is never exceeded.
●
Whenever maintenance work is carried out, the spring
tension must first be fully released.
Installation
Prior to installing the balancer, verify that the suspension
structure used has adequate stability.
Never install balancers with a plastic housing near hot-air
fans.
To prevent a dangerous drop to the ground, the balancer
must be equipped with an anti-fall safety device (3) (in acc.
with DIN 15112 requirements). For this, the supplied safety
chain must be securely installed independently of the bal-
ancer’s own suspension, thereby ensuring that the potential
falling distance does not exceed the maximum limit of 100
mm. Please verify that the safety chain’s suspension struc-
ture also provides the necessary mechanical strength and
stability.
Note, however, that the proper functioning of the system is
guaranteed only if this additional safety device does not
interfere in any way with the balancer’s working range,
which must always be sufficient to allow the balancer to
respond freely to any pull of the hose.
A safety chain strained by a fall must be replaced at once,
together with the balancer’s housing.
Operating Instructions
Air Hose Balancer, Type 7223
Characteristic values of the system
ID number
Load range
Dead weight
Hose extension/travel
(kg)
(kg)
(m)
7223 0000 01
0.4 – 1.2
1.30
0.8
7223 0000 02
1.2 – 2.2
1.40
0.8
7223 0000 03
2.2 – 3.0
1.40
0.8
