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Technological University of the Philippines College of Industrial Technology
REYMUNDO A. SAN JUAN BT-PPET 3A PET 3112PLANT INSPECTION PREVENTIVE MAINTENANCE MR. EDUARDO M. FERNANDEZ HAND RIGGING AND SIGNALS
Proper attire for Riggerman and Signal man
Riggerman: Signalman: Helmet Helmet Identification Tag Identification Tag Reflective Vest Reflective Vest Gloves Gloves Safety Shoes Safety Shoes
Parts of Crane Movable boom – can be raised, lowered, rotated Spool with steel cable that extends to end of boom Counterweights that offset the weight of the load
What is Crane? A crane is a tower or derrick that is equipped with cables
and pulleys that are used to lift and lower material. They are commonly used in the construction industry and in the manufacturing of heavy equipment. Cranes for construction are normally temporary structures, either fixed to the ground or mounted on a purpose built vehicle. They can either be controlled from an operator in a cab that travels along with the crane, by a push button pendant control station, or by radio type controls. The crane operator is ultimately responsible for the safety of the crews and the crane.
Types of Crane Mobile Crane The most basic type of crane consists of a steel truss or telescopic boom mounted on a mobile platform, which could be a rail, wheeled, or even on a cat truck. The boom is hinged at the bottom and can be either raised or lowered by cables or hydraulic cylinders.
Telescopic Crane This type of crane offers a boom that consists of a number of tubes fitted one inside of the other. A hydraulic mechanism extends or retracts the tubes to increase or decrease the length of the boom.
Tower Crane The tower crane is a modern form of a balance crane. When fixed to the ground, tower cranes will often give the best combination of height and lifting capacity and are also used when constructing tall buildings.
Truck Mounted Crane Cranes mounted on a rubber tire truck will provide great mobility. Outriggers that extend vertically or horizontally are used to level and stabilize the crane during hoisting.
Rough Terrain Crane A crane that is mounted on an undercarriage with four rubber tires, designed for operations off road. The outriggers extend vertically and horizontally to level and stabilize the crane when hoisting. These types of cranes are single engine machines where the same engine is used for powering the undercarriage as it is for powering the crane. In these types of cranes, the engine is normally mounted in the undercarriage rather than in the upper portion.
Loader Crane A loader crane is a hydraulically powered articulated arm fitted to a trailer, used to load equipment onto a trailer. The numerous sections can be folded into a small space when the crane isn’t in use.
Overhead Crane Also refered to as a suspended crane, this type is normally used in a factory, with some of them being able to lift very heavy loads. The hoist is set on a trolley which will move in one direction along one or two beams, which move at angles to that direction along elevated or ground level tracks, often mounted along the side of an assembly area.
In the excavation world, cranes are used to move
equipment or machinery. Cranes can quickly and easily move machinery into trenches or down steep hills, or even pipe. There are many types of cranes available, serving everything from excavation to road work. Cranes are also beneficial to building bridges or construction. For many years, cranes have proven to be an asset to the industry of construction and excavating. Crane operators make really good money, no matter what type of crane they are operating.
Who ever is in charge of any crane or hoist
operations (Contractor, Forman, Superintendent) using any crane or hoist must ensure that a fully competent, qualified and experienced signal person is assigned to work with the crane for as long as it is working within their area of responsibility.
Hand Signals Hoist: With the forearm vertical, forefinger
pointing up, move hand in small horizontal circle.
Hand Signals Lower: With the arm extended downward,
forefinger pointing down move hand in small horizontal circle
Hand Signals Use Main Hoist: Tap fist on top of head then use
regular signals.
Hand Signals Use Whip-Line: (Auxiliary Hoist) Tap elbow with
one hand, then use regular signals.
Hand Signals Raise Boom: Arm extended fingers closed with
thumb pointing upward.
Hand Signals Lower Boom: Arm extended fingers closed with
thumb pointing downward.
Hand Signals Move Slowly: Use one hand to give any motion
signal and place the other hand motionless in front of hand giving the motion signal (Hoist slowly shown as example).
Hand Signals Raise the Boom & Lower the Load: With arm
extended, thumb pointing up, flex fingers in and out as long as load movement is desired.
Hand Signals Lower the Boom & Raise the Load: With arm
extended, thumb pointing down, flex fingers in and out as long as load movement is desired.
Hand Signals Swing: Arm extended, point with finger in
direction of swing of boom.
Hand Signals Stop: Arm extended, palm down, move arm back
and forth horizontally.
Hand Signals Emergency Stop: Both arms extended, palms
down, move arms back and forth horizontally.
Hand Signals Travel: Arm extended forward hand open and
slightly raised make a pushing motion in direction of travel.
Hand Signals Travel Both Tracks: Use both fists in front of
body, making a circular motion about each other, indicating direction of travel, forward or backward. (For land cranes only)
Hand Signals Dog Everything: Clasp hands in front of body.
Hand Signals Travel One Track: Lock the track on side
indicated by raising fist. Travel opposite direction indicated by circular motion of other fist, rotated vertically in front of body. (For land cranes only)
Hand Signals Extend Boom: (Hydraulic cranes) Both fists in
front of body with thumbs pointing outward.
Hand Signals Retract Boom: (Hydraulic cranes) Both fists in
front of body with thumbs pointing towards each other.
Hand Signals Extend Boom – One Hand Signal: (Hydraulic
cranes) One fist in front of chest with thumb tapping on chest.
Hand Signals Retract Boom – One Hand Signal: (Hydraulic
cranes) One fist in front of chest with thumb pointing outward and heel of fist tapping on chest.
Test 1. Identify this hand signal? A. Travel One Track B. Travel Both Tracks C. Dog Everything D. Stop
Test 2. Identify this hand signal? A. Stop B. Move Slowly C. Dog Everything D. Emergency Stop
Test 3. Identify this hand signal? A. Extend Boom B. Raise Boom C. Retract Boom D. Travel To Me
Test 4. Identify this hand signal? A. Raise Boom Lower Load B. Raise Boom Slowly C. Lower The Boom And
Raise The Load D. None Of The Above
Test 5. Identify this hand signal? A. Travel Forward B. Travel One Track C. Travel Both Tracks D. None Of The Above
Test 6. Identify this hand signal? A. Raise Boom B. Extend Boom C. Retract Boom D. None Of The Above
Test 7. Identify this hand signal? A. Raise Boom Slowly B. Hoist Slowly C. Swing Slowly D. None Of The Above
Test 8. Identify this hand signal? A. Raise Boom Slowly B. Use Main Hoist C. Use Auxiliary Hoist D. Dog Everything
Test 9. Identify this hand signal? A. Use Auxiliary Hoist B. Swing Left C. Travel One Track D. Dog Everything
Test 10. The operator will only respond to signals only
from:? A. Designated Signalperson B. Qualified Signalperson C. Experienced Signalperson D. All Of The Above
Test 11. What is the most basic type of crane that consists
of a steel truss or telescopic boom mounted on a mobile platform, which could be a rail, wheeled, or even on a cat truck? A. Overhead Crane B. Mobile Crane C. Loader Crane D. Rough Terrain Crane
Test 12. Type of crane that consists of a number of tubes
fitted one inside of the other. A. Mobile Crane B. Overhead Crane C. Telescopic Crane D. Truck Mounted Crane
Test 13. What is the modern form of crane ? A. Overhead Crane B. Loader Crane C. Rough Terrain Crane D. Tower Crane
Test 14. Kind of crane used to level and stabilize the
crane during hoisting? A. Truck Mounted Crane B. Loader Crane C. Overhead Crane D. Telescopic Crane
Test 15. Type of crane that designed for operations off
road? A. Rough Terrain Crane B. Telescopic Crane C. Overhead Crane D. Mobile Crane
Test 16. Type of crane used to load equipment onto a
trailer? A. Overhead Crane B. Loader Crane C. Telescopic Crane D. Mobile Crane
Test 17. Type of crane that normally use in factory? A. Rough Terrain Crane B. Loader Crane C. Overhead Crane D. Telescopic Crane
Test Enumeration: 18-22. Give the proper attire for riggerman and signal man.
Answers: 1. C10. B/C18-22:Helmet 2. D11. B 3. A12. C 4. C13. D 5. C14. A 6. B15. A 7. C16. B 8. C17. C 9. C
Identification Tag Reflective Vest Gloves Safety Shoes
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