fOR REFERENCE OF TOOLS AND TACKLES. THE SAME MAY BE USED FOR STUDY PURPOSE
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Lifting tools
and tackles
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SAFETY IN OPERATION OF LIFTING TOOLS
PURPOSE
40% Accidents are due to Material handling
It accounts 40% production cost
It does not add value to the product but it cost to the product
A large cost of product cost is due to Material handing
Major activities in Cement Industries is Material Handling
Listing tools and tackles comes under Material handling
activity
It has potential for high risk and accidents
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TIPS FOR CORRECT LIFTING PRACTICE
Find out the correct weight of the load to be lifted
Slightly lift the load check for CG , imbalance etc
While lifting ensure that the load is not obstructing to any
of the parts of structure
Loose nuts & bolts must be kept in a box and not on the
structures.The box to be properly anchored.
Avoid sudden break or sudden release of the load . Impact
load may result in breaking of the rope/chain
persons with B.P or epilepsy shall not be allowed to work at
heights
Barricade the area of loads lifting/ sparks falling
Full body safety Harness is a must at heights more than 1.8M
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LIFTING TOOLS AND TACKLES
Lifting tool is device which is used to lift load such
Chain block
Jacks
Cranes etc
Winch
Mono rail
Lofting tackle is device which is used to facilitates for lifting load
such as
Rope
D-shackles
Hooks
Eye bolts etc
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CHAIN BLOCK
PROPER USE OF CHAIN BLOCK
Never drag the chain block on the floor. It must be caried
Chin block when not in use must be hanged on hooks and
kept under cover and not left on floor
It must be inspected before and after use
Chain block to be lubricated periodically
Once in year or often dismantle the chain completely and
examine the parts thoroughly and replace worn out parts.
Maintain proper service record of chain block
Load capacity never be exceed. It is advisable to lift 10% less
load then specified. Jerks load while lifting to be avoided
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JACKS
It is a portable tools used for lifting heavy load s through short
distance. There are several types of jacks
Screw Jacks
Screw jacks with ratchet handle
Hydraulic Jack with inbuilt pump
Hydraulic jack with separate pump etc
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JACKS
PROPER USE OF JACK
Chose a jack of at least 25% higher capacity htna the load to
be lifted
Use wooden block below and above jacks to reduce chance
of slipping
Use same capacity and same stroke length jacks when lifting
load with two or more jacks simultaneously
Inspect, clean lubricate jacks before and after use of jacks
Never drag the jacks on floor
When not in store jacks properly in racks after applying a thin
layer of grease to prevent rust
Use jacks according to instruction of manufacturer. All jacks
have a marks on the ram indicating the limits of ram travel
which never be exceeded
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JACKS
PROPER USE OF JACK
Always use clean oil of given specification according to
manufacturer
Use standard length levers provided with hydraulic jacks not
any available bars
There are some jacks which are manufactured only for use in
vertical position only which should not be used in horizontal
position.
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CRANES-TYPES OF CRANE
PROPER USE OF CRANES
Type of cranes
1.Wall mounted cranes
2.Gantry cranes
3.One leg Gantry cranes
4.Jib cranes
5.Mobile cranes
a.Truck mounted cranes
b.Crawler crane
c.Tyre mounted crane
d.Loco Crane
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CRANES –OPERATION SAFETY
The following factor to be consider while lifting load
About the load
Where the load will be shifted
Method to be adopted
1.Manual handling
2.Mechanical handling
About the operator
About he Supervisor
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CRANES
About the load
1.Weight of the item
2.Dimension
3.Special instruction if any
4.Hazardous/ Danger involved
Where the load will be shifted
1.With in the Plant
2.With in the store area
3.Distance
4.Pathway is clear and free from any shorts of hazards
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CRANES –OPERATION SAFETY
Method to be adopted
1.Manual handling
a. Where the workers are trained
b. Proper PPEs are available
Mechanical handling
1.What is the handling equipment
2.Is it suitable for the load
3.Is the crane capacity is sufficient for the load
4.Is the all the tools are tested and examined by
competent persons
5.Is the equipment is good working condition
6.Is the equipment is provided with safety devices
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CRANES –OPERATION SAFETY
About the operator
1.Is the operator trained for operation
2.Does poses license if required
3.Is the operator is aware about method of handling
4.Is the operator is aware about the hazards
associated with the handling and course of action to
be taken by him in case of emergency or accident
About he Supervisor
1.Is he trained
2.Is he familiar with statutory requirement
3.Is he capable of handling emergency
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CRANES-OPERATION SAFETY
Operate the equipment if
1.Equipment has been operated bare once
2.The load has been correctly fastened/ Balance way
3.Suitable PPEs has been provided
4.Environment is safe
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OTHER IMPORTANT FACTOR FOR CRANE OPERATION
Before start of lifting following conditions to be fulfilled
1.Slings must not be kinked
2.Load must be must be in plumb line
3.There must not be sudden jerks
4.The load should be lifted few inches first and observed the
balance to know the degree of tilt
5.No body is allowed to be under the suspended load
6.Obstruction/Entangle of load should be avoid because it
will over stretch the hoisting rope
7.Rubbing of hoisting hope with any stationary/moving
object should be avoided
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OTHER IMPORTANT FACTOR FOR CRANE OPERATION
Transversing of load
1.The load must be move after hoisting and clearing the
obstruction
2.Two movement should not be done same time
3.Uniform speed to be maintained
4.The sweeping zone should be kept free from obstruction
5.During movement of load it must be kept visible as far as
practicable to operator. If it is not posible thenhelp to be
taken from Signaler.
6.The movement operation will be suspended if load fall
freely under neutral condition
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OTHER IMPORTANT FACTOR FOR CRANE OPERATION
Lowering and positioning of load
1.The to be lowered slowly and carefully
2.Nobody is allowed under the load while lowering
3.Nobody is allow3d inside the cabin while loading the
trucks
4.Positioning and resting of load on plum line and it will be
standstill upto removal of load
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INSPECTION LIFTING TOOLS
It is divided into two type
1.Frequent inspection
Daily , Monthly and weekly and monthly
2.Periodic Inspection
Quarterly, Half yearly and yearly
Frequent Inspection
All functional operating systems like winch assembly,
control blocks, safety devices, electrical equipments
hydraulic system etc must be inspected daily
Running ropes shall be inspected on monthly basis and
record to be kept
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INSPECTION LIFTING TOOLS
Periodic Inspection
It includes
1.Oil levels and lubrication of all the parts
2.Inspection of rope and rope termination fittings
3.Spillage oil grease, grease and other materials
4.The function of brakes
5.Functioning of limit switches
6.Functioning of electrical switches
7.The cover and safety guards
8.Functioning alarm
9.Functioning of load indicating system
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INSPECTION LIFTING TOOLS -PERIODIC INSPECTION
Periodic Inspection
1.Deformation cracks, corrosion of jibs, blocks etc
2.Deformation like throat opening and bending of
hooks ( Throat opening 15% with latch and 8% with
out latch). Max bending allowed is 5% either side
3.Loose bolts, rivets and bearings
4.Worn out hooks, pins, bearings, shaft, gears, rollers
locking and clamping device
5.Excessive wearing on break system and lining
6.Improper functioning electrical devices including limit
switches
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PREACUTION TO BE TAKEN DURING MAINTENANCE
1.The crane must be moved to a location with at least
interface with other carne/equipments or operator
2.All the controller must be off position
3.LOTOTO to be applied
4.Warning sign crane under maintenance
5.Rail stopper to be provided
6.Crane must not take into operation if the guards are
not put properly
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LIFTING TACKLES
Lofting tackle is device which is used to facilitates for lifting load
such as
Rope
D-shackles
Hooks
Eye bolts etc
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ROPE
Lofting tackle is device which is used to facilitates for lifting load
such as
Rope
1.Fibre rope
2.Wire rope
3.Synthetic rope
4.Chain
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FIBRE ROPE
Handling care and Use of Fibre rope
Fibre rope never be stores on floor or in box. It should be
hang on well ventilated room. A wet rope should be throughly
dried and cleaned before storage. It must not be kept near
high temp area. Carbon mono-oxide and Carbon di-oxide
causes rapid deterioration of the rope
When a rope is used as as sling, it should not pass over
sharp edge of casing/beam. ( If rope rope makes an angle of
60 Deg with horizontal then they have only 86% of its
strength, 71% at 45 Deg and 50% at 30 Deg
Rope should not be dragged on ground
Fibre rope should be inspected thoroughly before and after
use the out side as well as inside ( by untwisting the strand).
Accumulation like powder like saw dust inside rope indicate
excessive internal wear. Excessive oil on the outside of the
rope is the indication of overload
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FIBRE ROPE
Handling care and Use of Fibre rope
If the inside the rope is dirty, if the strand have begun to unlay
or if the rope has lost its life elasticity it should not used for
hoistingDia of
the rope
in inch
Nylon
rope
( Kgs)
FOS(6)
Manila
rope(Kgs)
FOS(6)
¼ 170 Nil
½ 560 120
¾ 1290 245
1 2230 410
1 ¼ 3450 610
1 1/24990 840
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WIRE ROPE
Construction of 6/19 wire
rope
6=no. of strands
19 =no. of wire ropes in each
strand
19( 1/6/12) I.e 12wires over 6
wires over one wire.
Core of the
rope
Type of cores
1. Fiber core: sisal, polypropylene or nylon
2. Wire core : IWRC (Independent wire rope
core), SSC (steel strand core) or Armor core
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WIRE ROPE COMPONENTS
CORE
WIRE
STRAND
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
Reduction in diameter of the rope due to core failure , abrasion etc
should not be more than
1.0 mm for the ropes up to---19mm dia
1.5mm for ropes of------------22-28mm dia
2.0mm for ropes of ------------32-38mm dia
SUCH ROPE TO BE REPLACED
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
Reduction in diameter of the rope due to core failure , abrasion etc
should not be more than
1.0 mm for the ropes up to---19mm dia
1.5mm for ropes of------------22-28mm dia
2.0mm for ropes of ------------32-38mm dia
SUCH ROPE TO BE REPLACED
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
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PROPER USE OF WIRE ROPE
CORE
WIRE
STRAND
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THUMB RULES
CORE
WIRE
STRAND
LOAD CARRING CAPACITY THUMB RULE
FORMULA
W = 8d
2
( W in Kgs. ; ‘d’ in mm )
Subject to zero included angles between the Ropes.
N.B : The same formula is valid for D-Shackles also.
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CAPACITY OF ROPE AT VARIOS ANGLE
CORE
WIRE
STRAND
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CAPACITY OF ROPE AT VARIOUS ANGLE
CORE
WIRE
STRAND
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LIFTING TACKLES
CORE
WIRE
STRAND
Dead End
CORRECT
Saddle
U-Bolt
Installed properly as to number, direction, spacingand torque.
U BOLT
SADDLE
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LIFTING TACKLES
CORE
WIRE
STRAND
INCORRECT INCORRECT
Do Not Alternate!
Saddle is on Dead End!
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LIFTING TACKLES
CORE
WIRE
STRAND
INCORRECT INCORRECTResult
Load Load
Correct Orientation –
Load is in the plane of
the eye.
Incorrect Orientation –
When the load is applied to the
eye in this direction it will bend.
Always load an eyebolt in the plane of the eye.