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GENERAL SAFETY RULES
WARNING: Read and understand all instructions. Failure to follow all instructions listed below may result
in serious injury.
CAUTION: Do not allow persons to operate or assemble this jack until they have read this manual and
have developed a thorough understanding of how the jack works.
WARNING: The warnings, cautions, and instructions discussed in this instruction manual cannot
cover all possible conditions or situations that could occur. It must be understood by the operator
that common sense and caution are factors that cannot be built into this product, but must be supplied by
the operator.
INSPECTION
1. Judge the weight of the load to be lifted and make sure the weight does not over rate de capacity of the
chain block. Never overload the block in any circumstance.
2. Careful inspection should be made to the parts, such as hooks, load chain and braking device. The chain
block can only be used if it's found to be in perfect conditions.
3. Before lifting, inspect the hooks to make sure they are securely attached. For a better performance of the
block, the load chain should be kept vertically straight without any twist to prevent it from tangling.
4. During operation, the operator should stand in the plane of the hand wheel (9). To lift the load, pull the
hand chain (15) to rotate the hand wheel in clockwise direction. When pulling the hand chain in the reverse
direction, the hand wheel will be separated from the brake seat (10), the ratchet disc (14) checked by pawl
(17) will be released, and the load will be lowered down smoothly.
DO NOT PULL THE HAND CHAIN IN A POSITION OBLIQUE TO THE PLANE OF THE HAND WHEEL TO
PREVENT TANGLING OF THE HAND CHAIN AND TURING OF THE BLOCK.
5. For the sake of safety passing or working under a lifting load is strictly forbidden.
6. While lifting or lowering a load, the hand chain should be pulled steadily so as to prevent it from breaking or
tangling.
7. Stop operation immediately in case that the hand chain cannot be pulled any further and proceed to inspect
as following:
a)
Check for any tangles with the load.
b)
Check for any troubles with the parts of the block.
c)
Check that the load weight is not over the rated capacity of the block.
SAFETY MARKINGS
WARNING!
1. Clean off the dirt on the chain block after use and store it in a dry place to keep it from getting rusty and
corrosiveness.
2. Clean the parts with kerosene and smear the gears and bearings with grease once a year by a skilled
person.
3. Align the "0" marks of the two gears (8) while assembling.
4. The rollers (12) of the chain sprocket bearing may be stuck with grease to the journal of the chain sprocket (4)
before fitting them into the outer race of the bearing (13) on the side plate.
5. While assembling the break mechanism, care should be taken to mesh the slanting teeth of the ratchet disc
and the pawl. Make sure that the pawl is controlled by the spring sensitively and reliably. Then turn the
hand wheel clock-wise after screwing it onto the driving shaft, and it must press the disc and the plates on
the brake seat. Turning it counterclockwise, there should be clearances between the disc and the plates.
6. Transition fit is applied to the stay (3) and the right side plate (2). Don't dismantle them, or they will get
loose.
7. Never allow any layman to disassemble the blocks.
8. After cleaning and repairing the block should be subjected to no-load test and heavy load test. A chain
block can be put into operation after it has been tested and found in good condition.
9. Keep clean the friction surfaces of the brake while lubricating or operating the block. Brake mechanism
should be inspected regularly for prevention of faulty braking and falling of the load.
GENERAL SAFETY RULES
IMPORTANT SAFETY CONSIDERATIONS
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