CHAIN BLOCK
SAFETY OPERATIONS & PARTS MANUAL
I
5
CH A IN BL O CK
SAFETY PROCEDURES
The chain block must always be rigged to lift in a straight line from hook
to hook. The chain block must always be free to swivel on the upper hook.
Under no conditions should the chain block frame be allowed to bear on
any support when in use as this would cause bending of the hook or frame
and damage the unit.
When preparing to lift or move a load, be sure that the attachments to
both hooks are firmly seated in the saddles of the hooks. Avoid off centre
loading of any kind especially loading on the tip of the hook. Also observe
that the chain hangs straight (without twists) from chain block to lower
hook.
When lifting, raise the load only enough to clear the floor or support and
check to be sure brake will hold the load and that attachments to the load
are firmly seated. Continue the lift only after you are assured the load is
free of all obstructions.
Do not load beyond the rated
capacity of the chain block. Rated
capacity can be achieved with
the following hand chain pulls.
Since these hand chain pulls can
easily be applied by one person,
under no circumstances should
more than one person operate
the hoist hand chain. Overloading
can cause immediate failure of
some load carrying parts or result
in damage causing failure at less than rated capacity. When in doubt use
the next largest capacity Beaver 3S Chain Block.
WARNING
Exceeding the rated capacity of the chain block
may cause load to fail.
TO AVOID INJURY
Do not exceed the hand chain pulls specified in safety procedure 4.
5. Do not wrap load chain around the load or bring the load in contact
with the chain block. Doing this will result in the loss of the swivel
effect of the hook which could mean twisted chain and jammed
liftwheel. The chain could be damaged at the hook.
6. Stand clear of all loads and avoid moving load over the heads of
other personnel. Warn personnel of your intention to move a load
in their area.
7. Do not leave the load in the air unattended.
8. Do not lower the hook to a point where the chain becomes taut
between the liftwheel and loose end pin.
9. Do not run the lower hook block into the chain block frame. Frame
and /or chain guide damage may result.
10. The chain block has been designed for manual operation only.
WARNING
SPECIAL NOTE FOR USER:
TWISTING OF CHAIN
5 and 10 tonne 3S Chain Blocks have multiple falls of load chain.
THE LOAD CHAIN MUST BE INSPECTED FOR TWIST PRIOR TO EACH LIFT.
If the chain block bottom hook has looped through the multi fall of load
chain this can create a twist in the load chain that can damage the chain
block and cause injury.
Chain Block
Rated Load (kg)
Hand Chain Pull to
Lift Rated Load (N)
250
300
500
240
1000
250
2000
335
3000
363
5000
360
10000
380
SAFETY PROCEDURES
