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AmClyde 800t Model 52 Crane / Operation and Maintenance Manual


Language: english
Author: Hydralift AmClyde, Inc.
Genre: Operation and Maintenance Manual
Publisher: Hydralift AmClyde, Inc.
Series: BP5376-MAN-002
Format: PDF
Quality: OCR without errors
Number of pages: 238
Description: This technical manual gives information for the recommended operation and maintenance of the equipment. This technical manual is written for the origi nal design application of the equipment. If the application of the equipment changes, the operation and maintenance information and procedures could change. This technical manual is not a substitute for comprehensive operator and maintenance training. Read and completely understand this technical manual, equipment functions, and equipment safety features before operati ng or doing maintenance to the equipment.
If additional technical manuals are needed, they are available for an added cost.
The serial number of the equipment must be given with all communication for correct identification of the equipment.
Accessory Sales For replacement parts, retrofits, upgrades, spares, and accessories: 651-293-4600 Field Service For service-specific questions and inquiries, including inspections, test-certificates, service work, repair supervision, and operator/maintenance training: 651-293-4745 Sales For new equipment: 651-293-4646
This publication is one document of the technical manual for the AmClyde model 52 crane, serial number BP5376. The complete technical manual consists of the followi ng documents:
• Erection Manual, document number BP5376-MAN-001
• Operation and Maintenance Manual, document number BP5376-MAN-002
• Parts Manual, document number BP5376-MAN-003
• Vendor Data Manual, document number BP5376-MAN-004
• Vendor Data—Rockwell, document number BP5376-MAN-005

TABLE OF CONTENTS

TABLE OF CONTENTS FOREWORD........................................XI
Software License Agreement....................... 1525409 (Rev. 3)
1 SAFETY.........................................1-1
1.1 Safety: Warning...................................1-1
1.2 Safety Signal Words.................................1-1
1.3 Safety Rules.....................................1-2
1.3.1 General Safety Rules.............................1-2
1.3.2 Operating Safety Rules............................1-3
1.3.3 Maintenance Safety Rules..........................1-5
1.4 Planning Lifts....................................1-6
1.5 Crane Signals....................................1-7
1.6 Safety Labels....................................1-8
2 DESCRIPTION OF CRANE AND CONTROLS......................2-1
2.1 Introduction.....................................2-1
2.2 Equipment Description................................2-1
2.2.1 Lighting System................................2-9
2.2.1.1 Area Lighti ng............................2-9
2.2.1.2 Floodlighting............................2-10
2.2.1.3 Obstruction Lights.........................2-10
2.2.1.4 Emergency Lighting........................2-10
2.2.2 Operator’s Cab Nomenclature........................2-11
2.3 Control Console Nomenclature...........................2-13
2.4 General Control Devices..............................2-21
2.4.1 Solenoid Valve Override Plungers......................2-21
2.4.2 EMERGENCY STOP Switches.......................2-23
2.4.3 EMERGENCY POWER OFF Switch....................2-23
2.4.4 LAMP/ALARM TEST Push Button......................2-24
2.4.5 Load Monitoring System (LMS) Display...................2-24
2.4.5.1 START Screen...........................2-26
2.4.5.2 HOIST Screens..........................2-27
2.4.5.3 MAIN HOIST CHART SELECTION Screen............2-34
2.4.5.4 ALL HOOKS Screen........................2-35
2.4.5.5 CRANE STATUS Screens.....................2-42
2.4.5.6 CALIBRATION Screens......................2-50
2.4.5.7 FAULT Screen...........................2-50
2.4.5.8 CLOCK & DATE ADJUST Screen.................2-51
2.4.5.9 ADJUST BRIGHTNESS Screen..................2-52
2.4.5.10 Data Entry Keypad.........................2-53
2.4.6 Visitor’s Cab Display............................2-53
2.4.7 MONITORS Controls and Closed Circuit Television (CCTV) System. . . . 2-53
2.4.8 HORN Push Button.............................2-54
2.4.9 Boom Angle Indicator............................2-54
2.4.10 Swing Warning Light and Alarm.......................2-54
2.4.11 Sound-Powered Telephones........................2-54
2.4.12 WIPERS Controls..............................2-54
2.4.13 HEATER OFF/ON Switch..........................2-54
2.4.14 DEFROSTER OFF/ON Switch and DEFROSTER
LOW/MED/HIGH Switch...........................2-55
2.4.15 Operator’s Cab and Visitor’s Cab Air Conditioning Controls........2-55
2.4.16 Electrical House Air Conditioning and Heating Thermostats........2-55
2.4.17 Fire Extinguishers..............................2-55
2.4.18 Electrical Receptacles............................2-55
2.5 Power Control Devices...............................2-56
2.5.1 System Air Pressure Gauge.........................2-56
2.5.2 CONTROL POWER Push Buttons.....................2-56
2.5.3 DRIVE RESET Push Button and DRIVE READY Indicator Lights......2-56
2.6 Crane Function Control Devices..........................2-57
2.6.1 Hoist Drum Brakes—Boom, Main, Auxiliary, Whip Drums..........2-57
2.6.2 BOOM Brake Pedal.............................2-57
2.6.3 MAIN/AUXILIARY Brake Pedal.......................2-58
2.6.4 WHIP Brake Pedal.............................2-58
2.6.5 BOOM/SWING Control and Thumb Button.................2-59
2.6.6 BOOM/BOTH/SWING Switch........................2-60
2.6.7 HOIST Control and Thumb Button.....................2-60
2.6.8 Drum SELECT Push Buttons........................2-60
2.6.9 MAN RIDER MODE OFF/ON Key Switch..................2-61
2.6.10 PAWL Push Buttons.............................2-61
2.6.11 SPEED % / FULL switches.........................2-63
2.6.12 SWING LOCK IN and OUT Push Buttons..................2-63
2.6.13 E-RELEASE ENABLE OFF/ON Switch and Push Buttons.........2-64
2.6.14 WHIP EMERGENCY BRAKE RELEASE VALVE..............2-64
2.6.15 LIMIT BYPASS Push Buttons........................2-65
3 CRANE OPERATION...................................3-1
3.1 Introduction.....................................3-1
3.2 Personnel Handling.................................3-1
3.3 Pre-Start Procedure.................................3-1
3.3.1 Each Workday................................3-1
3.3.2 Before Each Start-Up.............................3-1
3.4 Start Procedure...................................3-2
3.5 Emergency Stop Procedure.............................3-6
3.5.1 Emergency Power Off Procedure.......................3-7
3.6 Shutdown Procedure................................3-7
3.7 Operating in the Wind...............................3-10
3.7.1 High Wind Shutdown............................3-10
3.8 Swing........................................3-11
3.9 Swing Lock.....................................3-12
3.9.1 Lowering (Engaging) the Swing Lock....................3-12
3.9.2 Raising (Disengaging) the Swing Lock...................3-13
3.10 Boom........................................3-13
3.10.1 Boom Hoist Pawl..............................3-15
3.10.1.1 Engag i ng the Boom Hoist Pawl..................3-15
3.10.1.2 Disengagi ng the Boom Hoist Pawl.................3-15
3.11 Main, Auxiliary, and Whip Fall...........................3-16
3.11.1 Main, Auxiliary, and Whip Drum Pawl....................3-17
3.11.1.1 Engag i ng the Main, Auxil iary, or Whip Drum Pawl.........3-18
3.11.1.2 Disengagi ng the Main, Auxil i ary, or Whip Drum Pawl.......3-18
3.12 Emergency Release—Empty Block........................3-18
3.13 Whip Emergency Load Lowering Procedure....................3-19
3.14 Block Pocket—Main and Auxiliary Fall.......................3-20
3.14.1 Putting the Block in the Block Pocket....................3-20
3.14.2 Lowering the Block Out of the Block Pocket.................3-21
3.15 Backing Out of Limit Conditions..........................3-21
3.15.1 Boom Upper Limit..............................3-21
3.15.2 Boom Lower Limit..............................3-22
3.15.3 Main, Auxiliary, or Whip Fall Two-Block Limit................3-22
3.15.4 Main, Auxiliary, or Whip Fall Lower Limit..................3-23
3.15.5 Block Pocket Limit..............................3-23
3.15.6 Boom and Main, Auxiliary, or Whip Fall Overspeed Fault..........3-23
3.15.7 NO CAPACITY Warning...........................3-24
3.15.8 90% CAPACITY Warning..........................3-24
3.15.9 Overload Automatic Stop..........................3-25
4 TUGGERS........................................4-1
4.1 Introduction.....................................4-1
4.2 Tugger Equipment Description............................4-1
4.3 Control Nomenclature................................4-2
4.3.1 Tugger Controls—Operator’s Cab......................4-2
4.3.2 Tugger Pendant Control...........................4-4
4.4 Tugger Control Devices...............................4-5
4.4.1 Tugger EMERGENCY STOP Switch.....................4-5
4.4.2 TUGGER CONTROL OPCAB/LOCAL Switch and TUGGER CONTROL Indicator Light....................................4-5
4.4.3 START and STOP Push Buttons.......................4-5
4.4.4 TUGGER Control...............................4-6
4.4.5 PAYOUT/NEUTRAL/INHAUL Switch.....................4-6
4.4.6 SPEED Control................................4-7
4.4.7 TENSION Control...............................4-7
4.4.8 RESET Push Button.............................4-7
4.5 Tugger Operation..................................4-8
4.5.1 Pre-Start Procedure.............................4-8
4.5.1.1 Each Workday............................4-8
4.5.1.2 Before Each Start-Up........................4-8
4.5.2 Start Procedure................................4-8
4.5.3 Tugger EMERGENCY STOP Procedure...................4-8
4.5.4 Operation Procedure—Operator’s Cab Control................4-9
4.5.5 Operation Procedure—Pendant Control...................4-11
4.6 Tugger Motor Overload Stop............................4-13
5 MAINTENANCE.....................................5-1
5.1 Introduction and General Instructions........................5-1
5.2 Lubrication......................................5-1
5.2.1 Lubrication Procedures............................5-1
5.2.2 Lubrication Schedule.............................5-2
5.3 Inspection and Maintenance Schedule.......................5-2
5.3.1 Introduction and Purpose...........................5-2
5.3.2 Definitions..................................5-2
5.3.3 Inspection Intervals..............................5-2
5.3.4 Inspection Records..............................5-3
5.3.5 Maintenance Procedure...........................5-3
5.3.6 Adjustments and Repairs—General Precautions...............5-4
5.3.7 As Necessary.................................5-5
5.3.8 Frequent Inspections (Daily to Monthly Depending on Severity of Use) . . . 5-6
5.3.9 Periodic Inspections (Monthly to Annually Depending on Severity of Use). . 5-8
5.3.10 Cranes Not in Regular Use.........................5-12
5.3.11 Testing....................................5-12
5.4 Electrical System..................................5-12
5.5 Electrical System Maintenance...........................5-12
5.5.1 Calibration Procedures...........................5-12
5.5.1.1 How to Calibrate the Load Monitoring System (LMS).......5-13
5.5.1.2 CALIBRATION DATA Screen...................5-15
5.5.1.3 Boom Angle Calibration......................5-16
5.5.1.4 Main, Auxil i ary, and Whip Hoist Calibration............5-17
5.5.1.5 Hook Height Calibration......................5-17
5.5.1.6 Load Zero Calibration.......................5-18
5.5.1.7 Load Span Calibration.......................5-19
5.5.1.8 Load Shunt Calibration.......................5-19
5.5.1.9 Cross and Heel Angle Calibration.................5-20
5.5.1.10 Cross Angle Calibration......................5-20
5.5.1.11 Heel Angle Calibration.......................5-21
5.6 Air System.....................................5-22
5.6.1 Air System Maintenance..........................5-22
5.6.2 Releasing Pressure from Air System....................5-23
5.7 Hoist Drum Brakes.................................5-23
5.7.1 Check and Adjustment of Hoist Drum Brake................5-23
5.7.2 Hoist Drum Brake Lining..........................5-27
5.7.2.1 Inspection of Hoist Drum Brake Lining...............5-27
5.7.2.2 Replacement of Hoist Drum Brake Lining
(National Oilwell Varco Standards 1525333, 1525334)...... 5-27
5.7.2.3 Sandi ng Hoist Drum Brake Lining
(National Oilwell Varco Standards 1525332, 1525335)...... 5-33
5.7.2.4 Burnishi ng Hoist Drum Brake Lining
(National Oilwell Varco Standard 1525336)............ 5-35
5.8 Hoist Drum Clutches................................5-37
5.8.1 Check and Adjustment of Hoist Drum Clutch................5-37
5.8.2 Hoist Drum Clutch Lining..........................5-39
5.8.2.1 Inspection of Hoist Drum Clutch Lining..............5-39
5.8.2.2 Replacement of Drum Clutch Lining
(National Oilwell Varco Standard 1525333)............ 5-40
5.8.2.3 Sanding Hoist Drum Clutch Lining
(National Oilwell Varco Standards 1525332, 1525335)...... 5-44
5.8.2.4 Burnishing Hoist Drum Clutch Lining
(National Oilwell Varco Standard 1525336)............ 5-46
5.9 Wire Rope Installation...............................5-48
5.10 Welding Instructions................................5-48
Calibration Data Table
Lubrication Guide.................................. 1595432
Lubricant, Wire Rope, Temperate...................... 310305 (Rev. 1)
Lubricant, Bearings, Temperate....................... 310306 (Rev. 1)
Lubricant, Chain, Temperate........................ 310307 (Rev. 1)
Lubricant, Open Gears, Temperate.....................310310 (Rev. 5)
Lubricant, Wire Rope, Arctic.............................310311
Lubricant, Bearings, Arctic..............................310312
Lubricant, Chain, Arctic................................310313
Lubricant, Open Gears, Arctic............................310318
Lubricant, SAE 30 Motor Oil ........................ 829800 (Rev. 1)
Lubricant, Enclosed Gears......................... 841147 (Rev. 1)
Application of Asphaltic Base Open Gear Lubricant................ 1525532
Wire Rope User’s Manual
6 SPECIFICATIONS....................................6-1
6.1 Crane........................................6-1
6.2 Wire Rope and Reeving...............................6-1
6.3 Hoists........................................6-2
6.4 Swing Drives.....................................6-2
6.5 Tuggers.......................................6-3
6.6 Power Generation and Distribution.........................6-3
6.6.1 Air System..................................6-3
6.6.2 Electric System................................6-4
6.7 Inch to Millimeter Equivalents............................6-5
6.8 Millimeter to Inch Equivalents............................6-6
6.9 U.S. to Metric Conversions.............................6-7
6.10 Tightening Procedures for ASTM, SAE, and ISO Bolts...............6-8
6.10.1 Tightening Procedure for ASTM A325 and ASTM A490 High-Strength Structural Coarse Thread Bolts and Hex Nuts
(National Oilwell Varco Standard 1525179).................. 6-8
6.10.2 Tightening Values for SAE Grade 2 Coarse Thread Bolts
(National Oilwell Varco Standard 1525177)................. 6-10
6.10.3 Tightening Values for SAE Grade 5 Coarse Thread Bolts
(National Oilwell Varco Standard 1525177)................. 6-11
6.10.4 Tightening Values for SAE Grade 8 Coarse Thread Bolts
(National Oilwell Varco Standards 1525177 and 1525515)......... 6-12
6.10.5 Tightening Values for Metric ISO Class 8.8 Bolts
(National Oilwell Varco Standard 1525314)................. 6-13
6.10.6 Tightening Values for Metric ISO Class 10.9 Bolts
(National Oilwell Varco Standards 1525314 and 1525516)......... 6-14
6.10.7 Tightening Values for Metric ISO Class 12.9 Bolts
(National Oilwell Varco Standard 1525314)................. 6-15
6.10.8 Tightening Values for 316 Stainless Steel Coarse Thread Bolts
(National Oilwell Varco Standard 1525064)................. 6-16
6.10.9 Tightening Values for Metric ISO Type A4 316 Stainless Steel Bolts
(National Oilwell Varco Standard 1525064)................. 6-17
Capacity Chart, Main Fall, Full Water Tank..........................................1594855
Capacity Chart, Main Fall, Empty Water Tank........................................1594856
Capacity Chart, Auxiliary Fall, Full Water Tank......................................1594857
Capacity Chart, Whip Fall, Full Water Tank..........................................1594858
Capacity Chart, Whip Fall, Man Rider Mode........................................1596451
Capacity Lift Height Chart............................................................1598177

More information

1 SAFETY
1.1 Safety: Warning
It is the responsibil i ty of the owner and user of this equipment to know the safety codes; insurance requirements; and national, federal, provincial, state, and local laws and regui ations affect i ng all uses of the equipment. This technical manual does not provide regui atory information, because regu i ations are subject to change and are different from location to location.
It is the responsibil i ty of the owner and user of the equipment to obtain, read, and understand the current publication of American National Standard for Floating Cranes and Floating Derricks, ANSI/ASME B30.8. Published by the American Society of Mechanical Engineers, Three Park Avenue, New York, NY 10016-5990, USA.
damage to equipment, high maintenance costs, and lost production.
Any performance ratings and specifications for this equipment are valid only when the equipment is used accord i ng to the manufacturer’s operating and maintenance procedures. Read and understand the technical manuals provided with this equipment before operat i ng or doing maintenance to the equipment. Assistance is available from the National Oilwell Varco Service Department.
The operator must know all the main parts, controls, and safety features of the equipment before operati ng it. The operator must know the correct operation and inspection procedures of the equipment before operat i ng it.
The operator is responsible for the safe operation of the equipment, includi ng the safety of others in the work area.
Not using the equipment accordi ng to these regui ations can result in damage to the equipment and death or injury to personnel.
National Oilwell Varco provides technical manuals for the different types of equipment it manufactures and sells. The owner and user must use these technical manuals to give the correct information and traini ng to the people who will operate, maintain, or supervise the use of the equip ment.
This equipment is designed to do heavy-duty work and will wear during normal use. Therefore, the owner and user must establ ish a regularly scheduled inspection and maintenance program based on the information in the National Oilwell Varco technical manual. Inspection and maintenance programs help prevent accidents and keep the equipment operating efficiently.
Correct traini ng, inspection, and maintenance programs are important to avoid personal injury,
1.2 Safety Signal Words
Throughout this technical manual are steps and procedures that, if not followed, can result in a hazard. The followi ng signal words are used to identify the level of a hazard.
Adanger
• Danger is used to show a hazard that WILL RESULT in death or serious injury if not avoided.
Awarning
• Warning is used to show a hazard or unsafe practice that CAN RESULT in death or serious injury if not avoided.
Acaution
• Caution is used to show a hazard that WILL or CAN RESULT in minor or moderate injury if not avoided.
CAUTION
• Caution used without the safety alert symbol A is used to show a hazard that WILL or CAN RESULT in equipment or property damage if not avoided.
NOTICE
• Notice is used to call attention to operation and maintenance information that is important but not hazard-related.
1.3 Safety Rules
National Oilwell Varco equipment, as designed, can be used safely; however, no equipment, regardi ess of design, can prevent injury or damage because of operator error or care i ess-ness.
This safety section includes information from many sources. It gives examples of basic safety rules. Additional safety rules can be necessary for safe operation of the equipment. The information in this section is not meant to replace safety codes; insurance requirements; or national, federal, provincial, state, and local laws and regu i ations.
1.3.1 General Safety Rules
1. DO NOT USE ANY PART OF THIS EQUIPMENT BESIDES THE WHIP HOIST TO LIFT OR LOWER PERSONNEL. WITH THE EXCEPTION OF THE WHIP HOIST, THIS EQUIPMENT IS MADE FOR MATERIAL HANDLING ONLY. USING THE WHIP HOIST TO LIFT OR LOWER PERSONNEL REQUIRES FOLLOWING SPECIAL PERSONNEL-HANDLING SAFETY PRECAUTIONS. REFER TO “PERSONNEL LIFTING” IN THE LATEST REVISION OF ANSI/ASME STANDARD B30.8 AND ANSI/ASME B30.23 (SEE PARAGRAPH 3.2).
2. Wear protective cloth i ng and safety equipment as required by job conditions when operat i ng the equipment or worki ng in the area of the equipment. Do not wear loose clothi ng that can catch on controls or moving equipment parts.
3. Keep the operator’s area and the work area clean and free of debris.
4. Keep all platforms, steps, and walki ng surfaces clean, dry, and free of debris.
Keep them painted with non-skid paint.
5. Keep the equipment clean and free of dirt and debris, to permit a good inspection of the equipment.
6. Check the rigging daily and before any heavy lifts. Rigging that is damaged must be repaired or replaced before it can be used.
7. Before making a heavy lift, make a test lift of a known load or a calibration check of the load monitori ng system (LMS). Do this to check that the LMS is operat i ng correctly and displaying accurate information.
8. Do not use a chain or sling having a knot or kink or is spliced using bolts. Do not use knots, bolts, or hook wraps to shorten slings.
9. Do not weld on hooks, sockets, or shackles. Weldi ng on these items can weaken the material, caus i ng failure.
10. Do not use torches or open flame on or near control equipment parts.
11. Adequate fire protection equipment must be available and in satisfactory operating condition. Operating and maintenance personnel must be famil i ar with the use and care of the fire protection equipment.
1.3.2 Operating Safety Rules
1. Do not operate this equipment under any conditions or in any manner other than those for which the equipment has been specified, sold, and described in this technical manual.
2. This equipment must be operated only by personnel who are trained and authorized for its operation.
3. Do not operate this equipment if you are ill or phys i cally or mentally not fit to operate it correctly and safely.
4. Do not exceed the rated load capaci ty of the equipment (see Section 6, Capaci ty Charts, drawi ngs 1594855, 1594856, 1594857, 1594858, 1596451, and 1598177). Lift i ng loads greater than those shown on the capaci ty chart or operation at positions not shown, or lift i ng when the boom is solid against the boom stops, can cause structural failure or collapse of the boom or crane and death or injury to personnel. Do not exceed the rated linepull capaci ty of the tuggers (see paragraph 6.5).
Do not permit a tugger to resist a
load—doing so can cause the rated linepull
capac i ty to be exceeded.
5. Do not rely on the load monitori ng system (LMS) when common sense judgment suggests an error. Do not use the LMS as a weigh i ng device after lifti ng the load.
6. Operate the equipment with no load at the start of each workday to make sure all functions work correctly.
7. The operator must watch the load at all times. Do not operate the equipment if the operator’s vision is restricted. Some applications require a signal person. The signal person must be visible to the operator at all times. The operator and the signal person must agree on the signals to be used before operati ng the equipment (see paragraph 1.5).
8. An audible signal must be sounded to warn personnel in the area before a load or empty lift i ng equipment is raised, lowered, or swung.
9. Communication must be maintained between all personnel involved in any operation. The operator must obey a signal to stop from anyone in the area. The signal person must give all other signals.
10. Do not permit personnel to get on or off the equipment while it is operat i ng.
11. Do not operate the equipment with any personnel near the wire rope or moving equip ment.
12. Do not operate the equipment without the safety guards installed.
13. Do not bypass, disconnect, or ignore safety and warn i ng devices of the equipment. Safely shut down the equipment and inves-tigate the prob i em. Correct the prob i em before contin u ing oper a tion.
14. Do not operate the equipment after an inspection reveals a safety hazard or if any equipment parts require maintenance or replacement. Always look for equipment damage or abnormal functioni ng during operation. If found, safely shut down the equipment and correct the prob i em before contin u ing oper a tion.
15. Before rotat i ng the crane, make sure that the crane tailswing as well as the swing paths of the boom and load are free of obstructions and personnel. Not followi ng this procedure can result in damage to the crane, the load, and other equipment and structures, and death or injury to personnel.
16. Operate the equipment at a slow speed when first learni ng.
17. Check the load monitori ng system (LMS) display and all closed circuit television (CCTV) monitors, gauges, and indicator lights often for normal operati ng conditions. Shut down the equipment immediately if the displays, monitors, gauges, and indicator lights show that the equipment is outside of its normal operating conditions. Investigate and correct the probl em before continui ng operation.
18. Carefully plan your lifts to prevent accidents (see paragraph 1.4). If you have questions about the safety of the lift, ask your supervisor. If there is a prob i em during a lift, stop the lift and safely lower the load.
19. Maximum crane stabil i ty is achieved when the boom is at its highest worki ng angle (minimum outreach). Consequently, all lifts should be made with the shortest possible worki ng radius (outreach).
20. When making a lift the boom (hook) must be directly over the load, not the side of the load. Side load i ng can cause structural failure or collapse of the boom or crane and injury to personnel.
21. When making a lift the hook must be directly over the estimated center of grav i ty of the load before the load is attached to the rigging. Do not attach capaci ty loads at maximum outreach, because an outward swing of the load, caused by vessel list or trim, or outward drift of the boom, can overload the crane.
22. Loads must be safely rigged before lift i ng. Do not overl oad slings. Slings must be attached to the throat of the hook. Do not permit hook latches to support any part of the load. Hook latches keep loose slings from coming off the hooks.
23. Use extreme caution when rotat i ng the crane with a load suspended. When lift i ng a heavy or bulky load, it is recommended that the load control tugger wire ropes be attached to each side of the load to prevent the load from rotati ng or swingi ng.
24. When using handl ines (ropes) to guide or snub a load, do not permit personnel to wrap the rope around any part of their body.
25. Personnel must be clear of the work area before making the lift.
26. Do not quickly accelerate or quickly decelerate a moving load.
27. Loads must be moved at as low a level as possible. If the load slips, it must be lowered with caution immediately.
28. Do not swing or position the load or attachment over personnel. Do not permit personnel to be in a hazardous position between a swingi ng load and a fixed object.
29. The operator must watch the load at all times. The load must be completely lowered before looki ng away from the load.
30. The operator must not leave the control station until the equipment has been shut down and is completely stopped.
31. The operator must not leave the control station with a load suspended in the air.
32. The hoist drum pawls (dogs) must be engaged when the drums are to be kept from rotat i ng for a period of time.
33. The boom hoist must have at least one-half layer of wire rope on the drum at all times during operation. Other hoist drums must have at least three wraps of wire rope on the drums at all times during operation.
34. Do not permit the wire rope to wind wrong on the hoist drum (see figure 1-1).
Figure 1-1. Wire Rope Wound Wrong on Drum
1.3.3 Maintenance Safety Rules
1. Shut down the equipment before doing main te nance. Only qual i fied, trained maintenance personnel must do maintenance, adjustment, and inspection procedures, followi ng the procedures outlined in the tech ni cal manual.
2. All replacement and repaired parts must meet the manufacturer’s current specifications.
3. After making a repair or adjustment, always check the function i ng of the equipment parts before putt i ng the equipment into full operation.
4. The brakes and clutches of the hoists, swing drives, and tuggers must always be dry, correctly adjusted, and free from lubricant contam i nation. Injury to personnel or damage to the equipment can result if the brake and clutch adjustments are not correct.
5. Do not make modifications to the equipment unless approved in writ i ng by National Oilwell Varco.
1.4 Planning Lifts
The signal person must be visible to the operator at all times. The operator and the signal person must agree on the signals to be used before operati ng the equipment (see paragraph 1.5).
Carefully plan your lifts to prevent accidents. If you have questions about the safety of the lift, ask your supervisor. If there is a prob i em during the lift, stop the lift and safely lower the load.
Awarning
• Do not operate the equipment if you are ill or physically or mentally not fit to operate it correctly and safely.
The operator must check the followi ng before
making the lift:
1. The shape of the object to be lifted.
2. The rated load capaci ty of the equipment.
3. The weight and center of grav i ty of the load, includi ng the slings.
4. The limits of the slings.
5. The crane tailswing and swing path of the boom and load for obstructions and personnel.
6. The position the load will take when it is lifted.
7. How high the load will have to be lifted.
Оценка: 4.9 / 5 (Голосов: 8)
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