9
- When lubricating the chain, make sure the
chain is in no-load condition so that the oil
can reach the contact points of the chain
links which are subject to wear. Chain link
parts contacting each other must always be
coated with lubricant, otherwise increased
wear on the chain results.
- It is not suffi
cient to lubricate the chains on
the outside as this does not ensure that a
lubricant fi lm can build up in the contact
points.
- With a constant lifting path of the chain, the
change-over area from lifting to lowering
movement must be checked in particular.
- With a constant lifting path of the chain, the
change-over area from lifting to lowering
movement must be checked in particular.
- Make sure that the load chain is lubricated
over its entire length, also including the part
of the chain in the housing of the hoist.
- Clean dirty chains with petroleum or a similar
cleaning agent, never heat the chain.
- A dry fi lm lubricant, e.g. PTFE spray, should
be used in environments where abrasives
like sand, etc., occur.
- When lubricating the chain, also check the
chain for wear.
Replacing the load chain
The load chain must be replaced by a new
chain of the same dimensions and quality in
the event of visible damage or deformations,
however, when the discarding status has been
reached, at the latest.
A load chain to be discarded must only be
replaced by an authorized specialist workshop.
Only fi t load chains which have been approved
by the manufacturer. Non-compliance with this
specifi cation will render the legal warranty or
guarantee void with immediate eff ect.
Note:
Replacement of a load chain must be
documented!
Hoist with several falls
ATTENTION:
Only pull in the new chain when
the bottom block is unloaded otherwise the
bottom block cann fall down. Risk of injury!
- An open load chain link is required as a
tool. It can be obtained by using an abrasive
wheel to cut a section from an existing link
with the same dimension. The length of the
cut section must at least correspond to the
thickness of the link.
- Detach load chain from chain anchorage on
supporting frame or bottom block (depen-
ding on model).
- Suspend the new open load chain link the
loose end of the load chain.
- Suspend the new lubricated load chain
also in the open link and pull it in (chain
movement UP).
- Do not fi t a twisted chain. The welds must
face outwards from the chain wheel.
- When the old load chain and the open chain
link have passed the hoist casing both can
be detached from new load chain.
- Fit one loose end of the new load chain
on the chain anchorage of the chain hoist
housing or on the bottom block (depending
on model).
Inspection of the load hook and top hook
Inspect the hook for deformation, damage,
surface cracks, wear and signs of corrosion,
as required, but at least once a year. Actual
operating conditions may also dictate shorter
inspection intervals.
Hooks that do not fulfi l all requirements must
be replaced immediately. Welding on hooks,
e. g. to compensate for wear or damage is
not permissible. Top and/or load hooks must
be replaced when the mouth of the hook has
opened more than 10% (Fig. 13) or when the
nominal dimensions have reduced by 5% as a
result of wear. If the limit values are hit, replace
the components.
Replacing the hand chain
An open load chain link is required as a
tool. It can be obtained by using an abrasive
wheel to cut a section from an existing link
with the same dimension. The length of the
cut section must at least correspond to the
thickness of the link.
- Open the old hand chain (preferably on the
connection link) and suspend the open link
into the loose end of the hand chain which
lies „in front of“ the hand chain wheel.
- Suspend the new hand chain also in the open
link and pull it through the chain guides and
over the hand chain wheel.
- Do not fi t a twisted chain. Make sure the
chain links are aligned. The welds must face
outwards.
- Separate the old hand chain including the
open connection link from the new hand
chain and connect the two loose ends of
the new hand chain by means of a new hand
chain connection link.
ATTENTION:
Every time a chain is replaced,
also check the chain wheels and replace, as
required.
For the models with gear drive, ensure that the
drive shaft and geared wheels are suffi
ciently
greased at all times.
For further maintenance work, please refer to
our maintenance instructions.
Repairs may only be carried out by
authorized specialist workshops that
use original Yale spare parts.
After repairs have been carried out and
after extended periods of non-use, the hoist
must be inspected again before it is put into
service again.
The inspections have to be initiated by
the operating company.
TRANSPORT, STORAGE, DECOMMIS-
SIONING AND DISPOSAL
Observe the following for transporting
the unit:
• Do not drop or throw the unit, always deposit
it carefully.
• Hand chains and load chains must be
transported in a way to avoid knotting and
formation of loops.
• Use suitable transport means. These
depend on the local conditions.
Observe the following for storing or tem-
porarily taking the unit out of service:
• Store the unit at a clean and dry place.
• Protect the unit incl. all accessories against
contamination, humidity and damage by
means of a suitable cover.
• Protect hooks against corrosion.
• A light oil fi lm should be applied to the
chains.
• Since the brake disks may freeze at tempera-
ture below 0°C, the unit should be stored
with closed brake. Turn the hand chain
wheel clockwise to this eff ect and hold the
load fall at the same time.
• If the unit is to be used again after it has
been taken out of service, it must fi rst be
inspected again by a competent person.
Disposal:
After taking the unit out of service, recycle or
dispose of the parts of the unit in accordance
with the legal regulations.
Further information and operating
instructions for download can be found
at www.cmco.eu!
