Cranes, Derricks, Hoists, Elevators, & Conveyors for Construction.

Post on 18-Dec-2015

273 views 1 download

Tags:

transcript

Cranes, Derricks, Hoists, Elevators, &

Conveyors for Construction

Manufacturer's specs/limitations

• Comply with them

• Specs not available?

• Attachments for cranes

1a

Conspicuously post

• Rated load capacities

• Recommended operating speeds

• Special hazard warnings

• Instructions

2a

Hand signals operators

• Prescribed by ANSI standard

• Post illustration of signals

3a

Competent person

• Inspect equipment • Prior each use• During use

• Safe operating condition

• Annual inspection

• Maintain records

4a

Wire rope

• Take out of service

• ANSI B 30.5-1968

• SAE J959-1966

5a

Belts, gears, exhaust pipes

• Reciprocating, rotating, moving parts

• Guarded if dangerous

• ANSI B 15.1-1958 Rev.

6a

Belts, gears, exhaust pipes

• Guard/insulate exhaust pipes

• Internal combustion engines

• Test enclosed spaces

6b

Crane swing radius hazards

• Barricade

• Prevent struck-by

• Prevent crushed-by

7a

Fuel transportation

• 29 CFR 1926 Subpart F

• On public highways

• 49 CFR Parts 177 and 393

8a

Fire extinguishers

• Accessible

• 5BC rating

• All operator stations/cabs

8b

Clearance near electrical lines

• 50 kV minimum10 feet

• Over 50 kV 10 feet plus

9a

Equipment in transit

• Less than 50 kV 4 feet

• Over 50-345 kV 10 feet

• Up to 750 kV 16 feet

9b

Observer

• Visual means difficult

• Designate observer

• Warn operator

9c

Modifying equipment

• Get written approval

• Change signage

• Original safety factor

• Employee safeguarding

10a

Personnel platforms

• Don’t use a crane

• Exceptions

• Hoisting procedure

• Load line strength

• Uniformly level

• Total weight

11a

Personnel platform design

• Qualified engineer/qualified person• Support capabilities• Guardrail system • Grab rail installed • Access gates

12a

Personnel platform design

• Standing headroom

• Hard hats

• Overhead protection

• Marked accordingly

• Rated load capacity

12b

Personnel platform use

• Abide by work needs

• Employees, tools, materials

• Not just materials/tools

• Secure materials/tools

• Evenly distribute

12c

Trial lifts

• Unoccupied personnel platform

• Load to equal lift weight

• Made from ground level

13a

Operator checks

• Systems, controls safety devices

• No interferences exist

• 50% limit/rated capacity

13b

Inspection after trail lift

• Competent person inspects

• Crane or derrick

• Rigging

14a

Inspection after trail lift

• Personnel platform

• Base support

• Determine defects/adverse effects

14b

Proof testing

• Proof test to 125% rated capacity

• Competent person inspects

• Correct deficiencies

15a

Personnel platform safety

• Body parts inside platform

• Secured to structure

• Operator remains at controls

• Indication of danger

• Continuous sight of Operator

• Body belt/harness system

16a

Traveling and hoisting

• Prohibited

• Exception to rule

• Travel restrictions

17a

Pre-lift meeting

• Contents – Review requirements/procedures– Crane operator– Signal person– Employee to be lifted– Person responsible – Each new work location

18a

Helicopter cranes

• Comply with FAA

• Conduct briefing

• Plan of operation

19a

Material hoists

• Mfg's specs/limitations

• Post information

• Defective wire rope

20a

Hoist operating rules

• Established and posted

• Signal system

• Allowable line speed

• Post on car frame

• "No Riders Allowed"

21a

Overhead hoists

• Safe working load

• Supporting structure load

• Hoist installation

• Air hoists

• Mfg’s specifications

22a

Conveyors

• Audible warning signal

• Emergency stop switches

• Guard screw conveyors

• Working blow conveyor

• Mark all crossovers

• Lockout/tagout

• ANSI B20.1-1957

23a