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Operating instructions/Warning
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Chain hoists are intended to manually raise or lower loads, using the hand chain.
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Handle, store and transport the chain hoist carefully to prevent damage.
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Only suitably trained and qualified personal should operate, inspect or maintain the chain hoist.
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Inspect the chain block for damage and/or wear before each use.
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Do not use if damage, deformity or excessive wear is found to any part of the chain hoist.
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Ensure that the suspension point and associated equipment is of adequate strength to support the intended loadings.
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Maximum height of the suspension point must not be greater than the chain hoist height of lift.
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Ensure the chain hoist is correctly and safely rigged before each use.
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Hooks must be correctly situated and aligned with the suspension point & load. Do not wedge the hook into position.
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The hand chain must be adjusted to suit the working height of the chain, i.e. c. 50cms -100cms above the floor level.
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Never exceed the Working Load Limit or shock load the chain block.
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Do not use the load chain as a sling. Do not over extend the load chain or allow it to be used in a twisted condition.
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The load must always be centred between the top and bottom hooks.
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Do not use more than one chain hoist to lift or transport a load, unless a risk assessment has been carried out by a competent
person.
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Chain hoists should not be used to lift or lower people, or to lift loads over people.
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Do not use in highly corrosive or explosive environments.
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Ambient operating temperatures -10°C to +50°C.
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Ensure that the height of lift is sufficient for the lifting operation being undertaken.
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Ensure that the brake is functioning correctly during prolonged raising or lowering operations. Halt the operation to allow
the brake to cool if necessary.
Maintenance
1.
Inspection and maintenance must only be carried out by suitably trained and qualified personnel
2.
After each use, clean off any dirt or other contaminants. Dry off, lubricate load chain and swivel hook if required and
store carefully.
3.
Following repair, the chain hoist must be inspected and tested
4.
Inspect & maintain more frequently when the chain hoist is used outdoors and/or in adverse operating conditions
Pre-use Inspection
1.
The chain hoist must be inspected before each use to detect any damage or faults.
2.
Listen for any unusual sounds as these may indicate damage or other faults.
3.
Braking mechanism should be subjected to regular function tests. Operate the chain hoist with and without a load
stopping at various positions to ensure that the load is being held correctly. If in any doubt, do not use the hoist and have it
inspected by a competent person.
Load chain and hooks
a) Load chain
The load chain and hooks are hard wearing, but wear is unavoidable. Certain operating conditions will cause wear and loss of
strength. Load chain worn beyond the permissable limits shown in Table 1 must be replaced at once.
Do not attempt to repair chain or hooks. Inspect the chain for mechanical damage, e.g. gouges, abrasion and stretc
b) Hooks
The hook opening will elongate or deform if subject to overload, side or point loading. Replace immediately
Permissable limits of maximum hook opening are given in Table 2.
See first page for Tables 1 & 2
For more information, see our website;
www.gunneboindustries.com
Table 1 = Chain Dimension
Table 2 = Hook Throat Opening
A = Capacity
B = Diameter of Chain Wire (mm)
C = Maximum Allowable Gauge Length (mm) - per length of 11 links
D = Hook Throat Opening
E = New Hook Opening (mm)
F = Replace Hook if Opening is equal or greater than (mm)
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