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Using two hoists for a lifting operation involves a risk that
one of the hoists becomes overloaded because the entire
load is carried by the one hoist�
•
When a load rotates the greatest danger is that the chain
gets twisted and can destroy the chain guide and chain
wheel� It may not be possible to lower the load if the chain
gets stuck when it is being raised�
•
The hoist should not be used in other temperatures than
those stated in the manufacturer's guarantees�
TEMPERATURE AT USE
Normal working temperature
•
Normal working temperature for the hoist is -10°C to + 50°C�
Using the hoist in very cold weather
•
When using the hoist in below zero °C the lubrication in
the braking system can become sluggish� That is why it is
necessary to test the load a couple time before lifting can
begin, to make certain the braking system and grease are
functioning optimally�
USE IN EXPLOSIVE ENVIRONMENTS
Lifting and lowering loads
•
The chain and hook can create sparks when
pulled rapidly over corners�
•
The cover and other parts of the hoist are not
made of non-sparking materials�
•
We therefore recommend that it not be used
in an explosive environment�
MAINTENANCE AND REPAIR
User maintenance
•
User maintenance is limited to cleaning, inspecting before
use and correct storage� Replacement of parts such as
chain, hooks, etc� must be done by qualified experts� When
in doubt, please send the hoist to the manufacturer or his
representative�
Repairs
•
The person carrying out repairs or replacing parts on
the hoist must be qualified to do such work� After the
repairs are completed the hoist must be approved by
a certified verification agency (ref� Brukerforskrift 555,
usage regulations)� The person who repairs a hoist should
follow the manufacturer's instructions for dismantling and
re-assembly�
Dismantling
The chain
•
To remove the chain: The chain lock can be dismantled
without disassembling the hoist� The chain lock is spring-
loaded and can be dismantled using a pliers – See the
illustration�
Handle
•
Dismantling the hand wheel and hand chain: Remove the
parts in the order shown in parts drawing�
Mid-section
•
Remove the parts in the order shown in parts drawing�
Dismantle the drive unit and mid-section from the left side�
Re-assembly
•
Re-assemble the parts in the order shown in parts drawing�
Inspection and maintenance
•
Damaged parts (twisted, cut, worn, broken etc) must be
replaced before the hoist can be used again�
•
Follow the dismantling procedures� Check for damage
to the chain, hook, end ring, bolts etc� Check for damage
on the handle, brake cover, handle-ratchet, check, brake
discs, brake pawl etc�
•
When dismantling the hand wheel and drive unit, check the
drive, drive axle, chain guide, side plates and upper hook�
•
Always clean all parts carefully with cleaning oil or a similar
cleaner before the hoist is re-assembled� Smear moving
parts with grease�
•
Gently wipe both brake discs and friction surfaces that come
into contact with the washers using a dry cloth/rag� The
brake discs and friction surfaces must be oil-free and not be
greased!
When maintenance is done on the hoist it must be
approved by an expert agency in accordance with national
regulations.
PERIODIC INSPECTION
•
Annual periodic checks are required� The inspection must
be done in accordance with the manufacturer's maintenance
list� Of particular importance is verifying that brake coatings
are within tolerance limits set by the manufacturer� (See the
maintenance table)
WEAR THAT CAN CAUSE RISKS
•
The hoist is equipped with a precisely calibrated chain,
Grade T (8)� Wear on a chain that stretches the links is
not permitted because this can cause the chain to «climb»
on the chain wheel and get stuck� This is a personnel risk
because the load cannot be lowered properly�
•
The chain may only be replaced with a similar precisely
calibrated Grade T chain� One must never use a chain used
on electric hoists (type DT or DAT, ref� standard EN-818-7)
because these may not be used on manual hoists due to
their differing properties - thus leading to a risk of injury�
•
Hooks must not have larger openings than the maximum
limits stated in the technical data table
Dismantling the chain
