This document provides information on overhead crane operation and safety. It includes:
- An overview of an operator's daily inspection checklist, which includes checking for loose/missing parts, end stops, limit switches, hooks, wire ropes, load chains, and slings.
- Standard hand signals for controlling overhead cranes, such as signals for hoisting, lowering, bridge travel, trolley travel, stopping, and emergency stopping.
- Safety precautions for crane operation like not exceeding load capacity, maintaining clearance from loads, keeping control unattended with load suspended, and responding only to authorized signals.
- Requirements for crane inspections, which are divided into monthly/quarterly and annual
This handbook provides the basics of crane operation and safety requirements as well as guidelines for the initial investigation of crane incidents, including observations to be made at the site as well as questions to be asked during interviews of site personnel.
@هیدرولیک تخصصی
کانال هیدرولیک تخصصی جهت ارایه اطلاعات فنی و مهندسی در زمینه هیدرولیک و پنو ماتیک صنعتی و سیار ایجاد شده است
جهت تعمیرات تخصصی ، آموزش هیدرولیک و پنوماتیک ، مشاوره فنی ، همکاری در پروژه ها با ما تماس بگیرید .
منصور ابوالقاسمی
09125835759
تلگرام ادمین : @sorena39
پاسخگوی سئوالات فنی شما
کانال هیدرولیک تخصصی
https://telegram.me/joinchat/BWPVMj5Rp2ZwP_657XXaKg
This handbook provides the basics of crane operation and safety requirements as well as guidelines for the initial investigation of crane incidents, including observations to be made at the site as well as questions to be asked during interviews of site personnel.
@هیدرولیک تخصصی
کانال هیدرولیک تخصصی جهت ارایه اطلاعات فنی و مهندسی در زمینه هیدرولیک و پنو ماتیک صنعتی و سیار ایجاد شده است
جهت تعمیرات تخصصی ، آموزش هیدرولیک و پنوماتیک ، مشاوره فنی ، همکاری در پروژه ها با ما تماس بگیرید .
منصور ابوالقاسمی
09125835759
تلگرام ادمین : @sorena39
پاسخگوی سئوالات فنی شما
کانال هیدرولیک تخصصی
https://telegram.me/joinchat/BWPVMj5Rp2ZwP_657XXaKg
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
3. Note:- 1) Crane weight and wheel loads are approx. Values given to evaluate size of supporting
structure.
2) Pendent push button is suspended from Hoist / crab.
3) Hook approach: a) Hook position is assumed at center of rope drum
b) Dimensions given are without consideration of DSL and its location
4) A. C. Disc brakes are provided for all motors
5) For SG - EOT Hoist with Electric Trolley will be supplied. For DG - EOT Hoist with crab assembly
will be supplied.
6) Dimensions E & F will change for higher lifts.
7) For every fraction of spans above the specified span Dimensions of nearest higher span shall be
applicable.
8) Cranes can be offered to suit higher size of runway rails on request.
9) Data tolerance + 10%
10) For SG - EOT Diameter of long travel wheel is 150 and 250 for cranes upto 3Tx12 mtrs. and 5Tx3
mtrs to 10T x 12 mtrs. respectively.
11) (L) Lift on crane = Height of Rail (R) + C - K
Selection Of Over Head Crane
4. @ An overhead crane
operator’s job is very
important
@ Employers and employees need to be
aware that all cranes are different and may
have specific operating, safety, inspection and
maintenance requirements.
@ It is essential that you have the
manufacturers operating manuals
6. OVERHEAD AND GANTRY CRANE
OPERATION
Hoist operators must inspect equipment daily
before use.
Do not operate a crane or hoist if limit switches,
steel ropes, chains or other components are worn
or in disrepair.
Replace nylon or web slings immediately if
excessively worn.
7. OVERHEAD AND GANTRY CRANE
OPERATION
Associates in the direction of travel
should be warned to move and remain
clear of a lifted load at all times.
Loads should not be suspended over personnel
below.
Under no circumstances may anyone ride the
hook or load.
Directional movement should be made
smoothly and deliberately. Avoid rapid
movements in any direction.
8. OVERHEAD AND GANTRY CRANE
OPERATION
Do not exceed the rated load
capacity of the crane, hoist,
chain, cable, slings, or other
component.
Slings, load chains and other lifting devices must
be fully and securely seated in the hook before
moving a load. Remove slack from the sling,
chain, or cable before lifting a load.
9. OVERHEAD AND GANTRY CRANE
OPERATION
Use the following practices to avoid swinging
loads:
Locate the hoist directly above the
lifting point of the load before lifting.
Lower loads directly below the hoist.
Keep hoisting ropes vertical. Do not
pull or push the load.
Maintain two full wraps of cable on the
hoisting drum.
10. OVERHEAD AND GANTRY CRANE
OPERATION
When lifting loads at or near capacity, test the
hoist brakes by returning the master switch or
push button to the “OFF” position after raising
the load a few inches off the floor. If the brakes
do not hold, lower the load to the floor slowly and
do not operate the crane. Report the situation
immediately and DO NOT USE until repaired.
11. OVERHEAD AND GANTRY CRANE
OPERATION
Ensure that all loads are lifted high enough to
clear obstructions before moving the bridge or
trolley. Whenever possible, maintain a minimum
clearance of one foot above loads and to the sides.
Raise the load only to the height necessary to
clear lower objects.
Never pull a hoist by the
pendant cable.
12. OVERHEAD AND GANTRY CRANE
OPERATION
Never leave the controls unattended while a load
is suspended. If it becomes necessary to leave the
controls, lower the load to the floor.
Familiarize yourself with the location of the
disconnect switch.
If loss of electrical power occurs, place controls
in the “OFF” position to prevent unexpected
startup upon restoration of power.
13. OVERHEAD AND GANTRY CRANE
OPERATION
Disconnect power to a hoist that is
unsafe or in need of repair. Arrange to
have the disconnect switch locked and
the control panel tagged with an “Out
of Order” or “Do Not Operate” tag.
Never operate a hoist that has been
tagged with an “Out of Order” or “Do
Not Operate” tag, or is your opinion,
UNSAFE TO OPERATE…
14. HOISTS / CRANES
Daily Inspection Checklist
Check for any loose or missing parts.
Check end stops. End stops prevent the
trolley from running off the beam.
Know the location of disconnect
switch that will cut the power off
only to the hoist or crane. Be sure
it is readily accessible and not blocked.
15. HOISTS / CRANES
Daily Inspection Checklist
Make sure all control buttons are
labeled to indicate their function.
Operate each button to make sure
it functions properly, releases
immediately, and does not stick.
N
W
S
E
Check upper hoist limit switch by slowly raising
the block to trip the switch.
Lower the hoist block to activate the lower limit
switch if the hoist is so equipped, leaving at least
one turn of rope on the take-up drum.
16. HOISTS / CRANES
Daily Inspection Checklist
Make sure wire rope is properly seated in its
drum and sheave grooves without any slack or
overlapping.
Operate the crane or hoist several feet in each
direction that it travels. Listen for any unusual
noises. Look for any jerky movements.
When moving an A frame hoist, take care to
ensure that the wheels on each side stay on the
track.
17. HOISTS / CRANES
Daily Inspection Checklist
Check all hooks. Hooks should not be cracked,
stretched, bent, or twisted. Each hook must have
a safety latch that automatically closes the
throat of the hook. If the latch is bent, spring is
broken, or is otherwise damaged the latch must
be repaired before use. Hooks should rotate
freely in block assembly without any “grinding”
felt or heard.
18. HOISTS / CRANES
Daily Inspection Checklist
Check the block assembly for structural damage
or cracks in any components. Sheaves should
rotate freely without any grinding felt or heard
coming from the bearings. The sheave guard
must be unbroken and intact. No part of the
sheave guard should be in contact with the wire
rope or sheave.
19. HOISTS / CRANES
Daily Inspection Checklist
Check the wire rope by lowering the block to the
lowest level and looking for the following conditions.
If any of these conditions are observed, they should be
reported immediately.
Reduced diameter of the rope. This may indicate
the rope has been stretched, has lost its inner core
support, or has worn outside wires.
Any number of broken strands of wires.
Kinked, crushed, cut, or
“bird caged” wiring, or wiring
with heat damage.
20. HOISTS / CRANES
Daily Inspection Checklist
Check load chain for damage, wear at contact
points, cracks, or distorted (bent, twisted, or
stretched) links. Inspect all mechanical coupling
links to insure linking pins are secure and in good
condition. Report unsafe conditions immediately.
21. HOISTS / CRANES
Daily Inspection Checklist
Check the condition and capacity
of nylon or synthetic web slings.
Capacity ratings must be legible
on the manufacturer’s label. The
capacity of the sling being used
must be adequate for the load and
attachment method. Replace
slings immediately if excessive
wear occurs.
22. @ The minimum qualifications for an
employee selected to operate a crane are as
follows:
* Corrected vision
* Effective use of all 4 limbs
* Sufficient height to operate the controls & in
to the working area.
* coordination between eyes, hands, and feet.
* Be free of known convulsive disorders and
episodes of unconsciousness.
* Every 3 Year medical Fitness Check up is
necessary
23. Sample Permit
CRANE OPERATOR PERMIT
(Firm Name)
Operator’s Name:
Operator’s Number:
Is Authorized To Operate: (Insert Type of crane/Crane(s) Authorized)
Restrictions: (Explanation of Restrictions)
Date Issued: (Month-Day-Year
Date Expiring (Month-Day-Year)
By Issuing Authority: _______________________________________________
Title
24. Personal Protective Equipment
Head Protection
PROPER
CLOTHING &
DRESS
Safety Foot
Wear
Hearing Protection
Face Protection
Hand Protection
Respirators
Fall Protection
Special Clothing
25. Shift/Operator Inspection Checks
Inspection Item Description of Inspection Check Points
Tagged Crane or Hoist Check that crane or hoist is not tagged with an out-of-order sign.
Control Devices Test run that all motions agree with control device markings.
Brakes Check that all motions do not have excessive drift and that stopping distances are
normal
Hook Check for damage, cracks, nicks, gouges, deformations of the throat opening, wear
on saddle or load bearing point, and twist. Refer to the manual furnished by the
original manufacturer of the crane.
Hook Latch If a hook latch is required, check for proper operation.
Wire Rope Check for broken wires, broken strands, kinks, and any deformation or damage to the
rope structure.
Revving Check that the wire rope is properly revved and that rope parts are not twisted about
each other.
Limit Switches Check that the upper limit device stops lifting motion of the hoist load block before
striking any part of the hoist or crane.
Oil Leakage Check for any sign of oil leakage on the crane and on the floor area beneath the
crane.
Unusual Sounds Check for any unusual sounds from the crane or hoist mechanism while operating the
crane or hoist
Warning and Safety Labels Check that warning and other safety labels are not missing and that they are legible.
Housekeeping and Lighting Check area for accumulation of material, trip or slip hazards, and poor lighting
26. @ A hoisting limit switch on a crane or hoisting device
must not be used as an operating control unless the
crane is also equipped with a backup limit switch.
Operating Points
@ A load must not be lowered below a point where less
than 2 full wraps of wire rope remain on the hoisting
drum.
@ If there is doubt, safety of a crane or hoisting, the
operator must immediately stop the crane and report the
condition creating the doubt to the supervisor.
@ An operator must only respond to signals from the
employee directing the lift
@ Compressed gases can only be lifted by a cradle or
enclosed platform.
27. Standard Hand Signals For Controlling Overhead
And Gantry Cranes
HOIST. With forearm vertical,
forefinger pointing up, move
hand in small horizontal circle
LOWER. With arm extended
downward, forefinger pointing
down, move hand in small
horizontal circle.
28. Standard Hand Signals For Controlling Overhead
And Gantry Cranes
BRIDGE TRAVEL. Arm extended
forward, hand open and slightly
raised, make pushing motion in
direction of travel.
TROLLEY TRAVEL. Palm up,
fingers closed, thumb
pointing in direction of
motion, jerk hand horizontally.
29. Standard Hand Signals For Controlling Overhead
And Gantry Cranes
STOP. Arm extended, palm
down, hold position rigidly.
EMERGENCY STOP. Arm
extended, palm down,
move hand rapidly right
and left.
30. Standard Hand Signals For Controlling Overhead
And Gantry Cranes
MULTIPLE TROLLEYS. Hold up
one finger for block marked “1”
and two fingers for block
marked “2”. Regular signals
follow.
MOVE SLOWLY. Use one hand to give
any motion signal and place other
hand motionless in front of hand
giving the motion signal. (Hoist Slowly
shown as an example.)
31. Standard Hand Signals For Controlling Overhead
And Gantry Cranes
MAGNET IS
DISCONNECTED.
Crane operator
spreads both hands
apart – palms up.
32. Inspection
The inspection procedure for cranes in regular
service is divided into 2 general classifications:
@ Monthly to quarterly or at intervals of 100
hours of use, whichever comes first.
@ Annually or at intervals of 500 hours of use,
whichever comes first.
The inspections cover topics outlined in
the standard or manufacturers guidelines.
33. Maintenance
# A preventative maintenance program will be
established and the program will be based on the
manufacturer’s recommendations
# Application is reviewed by a qualified person.
Before adjustments or repairs are made on a
crane, all of the following precautions must be
taken:
1. The crane will be moved to a location where
it will cause the least interference with other
moving equipment on the track or rails and
operations in the area.
34. 2. Controllers will be placed in the “off” position.
3. The main switch will be placed in the “off”
position or “open” position and LOCKED OUT,
except where power is necessary to adjust or
service the crane
4. A warning sign or “out of order” sign will be
placed at the operator control station.
5. A Caution Board will be provided while
maintenance is performed on the crane.
35. In the event of power failure
@ The operator must place all controllers in the “off”
position.
@ When an operator leaves a crane unattended he
must land any attached load.
@ Place the controllers in the “off” position, and open
the main switch.
@ Before closing a main switch the operator must
make sure all controllers are in the “off” position.
@ The main switch does not need to be opened on a
pendant-controlled crane if the crane is left unattended
for short periods.