Pneumatic chain hoist CPA ATEX
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1.3 IDENTIFICATION MARKING
In order to clearly identify the product, the ratings plate (Fig. 2) with all
important data can be found on the gear. In case of queries with regard
to handling the product, which are not covered by these operating
instructions, please contact:
Columbus McKinnon Industrial Products GmbH
Yale-Allee 30 - D-42329 Wuppertal, Germany
Tel.: 0202/69359-600 - Fax: 0202/69359-127
www.cmco.eu - email: [email protected]
1.4 SPARK FORMATION
The CPA series is exclusively designed for lifting and lowering loads. In
combination with a trolley (VTP/G or VTA), the devices are also ideal for
the horizontal movement of overhead loads.
Attention:
Trolleys must be equipped with buff ers and bronze plain
rollers.
Any diff erent or exceeding use is considered incorrect. Columbus
McKinnon Industrial Products GmbH will not accept any liability
for damage resulting from such use. The risk is borne by the user/
operating company alone.
Materials subject to danger of friction and impact
Individual sparks can be generated as a result of frictional and/or
impact processes and, as a result, can cause the ignition of any gas or
impact-sensitive dust.
Increased danger of ignition may emanate from clashing of special mate-
rial pairings. These are non corrosion-resistant steel or cast iron against
aluminium, magnesium or pertinent alloys. This applies especially to
rust (e.g. surface rust). Rust (surface rust) may appear especially at
the friction points of the chain and the load hook. In order to ensure
proper operation of the product, no rust may be present at these friction
spots, and no material combinations of light metal and steel (except for
non-rusting steel) exist in the use areas, at possible friction, deposit or
grinding spots, so that spark formation of these material combinations
as a result of mechanical eff ects can be ruled out.
Hand and load chain
Always make sure that the hand chain, load chain and the load are
guided so that grinding and/or sliding contact with external systems and
components can be ruled out. Depending on the degree of corrosion, the
conductive discharge capability of hand chains or load chains can worsen
to such a degree that it becomes inadequate. In terms of operation, this
means that rusty hand chains or load chains can no longer be used.
Attention:
The user has to operate the unit to avoid sparking from the
hand chain as well as from the load chain.
For increased safety (for example, in atmospheres containing
acetylene) to prevent shock and/or friction sparks during handling,
the corresponding trolleys are equipped with hand chains made
of stainless steel and the load hooks and top hooks are copper
plated. Trolleys are equipped with bronze plain rollers and buff ers.
Optional:
Stainless steel load chains.
Compressed air hoses
For Zone 1, compressed air hoses must have a lower surface resistance
< 10
9
Ω
in order to avoid electrostatic ignition sources.
At a surface resistance > 10
9
Ω
the hoses of Explosion Group I, IIA and
IIB must have Ø
≤
30 mm and Explosion Group IIC, Ø
≤
20 mm. If these
values are not met, evidence must be provided that the equipment is
not dangerously charged.
Attachment points
Attachment points have to be selected to ensure that the expected forces
can be safely absorbed. The unit must align freely under load in order
to avoid unacceptable additional loading.
1.5 EARTHING
Electrostatic ignition risks can be avoided through safe earthing. Earth-
ing of lifting devices is necessary in zones 1 and 21. This can be done
using top hook or loading lugs, if the lifting device is attached to the
appropriate earthed parts (earth resistance < 10
6
Ω
). This is also true
for trolleys. The corresponding runway is to be earthed by the customer.
In this case, please make sure that the wheels and guide rail surfaces
are not provided with paint layers, which can cause the resistance to
earth reach unacceptable high values.
The earthing of the load hook is done through the load chain.
The load to be transported must be earthed. A separate earthing is
necessary, if non-conducting lashing devices are used.
1.6 TRANSPORT AND STORAGE
Observe the following for safe transport of the unit:
- Set the device down carefully, do not drop
- Hand chains and load chains must be transported in such a
way as to avoid knotting and formation of loops
- Do not bend compressed air hoses.
2. SPECIFIED
OPERATION/APPLICATION
Maximum load carrying capacity
• The CPA pneumatic chain hoist production series has been designed
to lift and lower loads up to the specified load carrying capacity. The
load carrying capacity (rated load capacity) indicated on the hoist/
trolley is the maximum safe working load which must not be exceeded.
Hazardous areas
• Do not allow personnel to pass under a
suspended load (see Fig. 3).
• After lifting or tensioning, a load must not
be left unattended or remain lifted for a
longer period of time.
• The operator may start moving the load
only after it has been attached correctly and
all persons are clear of the danger zone.
Suspending the device
• The operator must ensure that the lifting device is suspended in a
manner that makes it possible to operate the unit without exposing
himself or other personnel to danger by the unit itself, the suspension
or the load.
Fig. 3
