Presentation on theme: "Morgan City Rentals Procedures and Practices Air Hoist Air Hose."— Presentation transcript:
Morgan City Rentals Procedures and Practices Air Hoist Air Hose
Throttle Handle Forward / Reverse Throttle Valve Brake Handle Gear End Drain Plug Motor End Fill Plug Motor End Drain Plug Gear End Fill Plug Brake Adjustment Screw Skid Mounting Bolts Main Service Areas of the Hoist
Always maintain and operate winch in accordance with ANSI B30.9 safety code Allow qualified, through training, personnel to operate winch Subject winch to regular inspection and maintenance Operator must understand proper methods of hitching loads Operator should have a knowledge of attitude regarding safety Operator should not operate under unsafe conditions Winches are not to be used for lifting or lowering personnel Practices and Procedures These practices and procedures have been prepared to provide the end user with basic operating practices. This program does not include all safe working practices required in specific lifting situations. The information is based on quality control procedures set by Morgan City Rentals and should be performed by trained and experienced personnel.
Adhered to, recorded by, and directed by a qualified person Inspections done at the beginning of each shift or job Items to be checked should included: – Lubrication – Brakes – Wire Rope and Hooks or End Connections – Hoses, Connections, Brake Handle, Throttle Handle – Mounts (motor, bolts, and skid) – Anchor screws are NOT designed or intended to hold any load/ weight Hoist Inspection Procedures
Two classifications of Inspections – Frequently- Periodically Frequently inspections are made by a qualified person to determine the degree of exposure to wear, deterioration, or malfunction within respected intervals. Normal Service – monthly Heavy Service – weekly to monthly Severe Service – daily to weekly Periodically inspections are made to record external conditions to provide the basis for a continuing evaluation. Normal Service – equipment in place - yearly Heavy Service – equipment in place - yearly Severe Service – equipment in place - quarterly Air Hoist Inspection Frequencies
Lubrication Check oil daily and maintain proper levels Secure drain plugs and vent cap Drain oil regularly and replace Water will accumulate and cause blow-by Hose and Connections Use proper air hose connections and hose safety clamp -1” crowfoot with safety clamp Smaller hose and fittings will reduce efficiency of the winch For top performance operate winch at 90 psig (6.2 bar/620 kPa) air pressure Gear Lubrication Should be done every 60 – 90 days Inspect gear end for sufficient signs of lubrication Add No. 1 grade gear grease to the grease plug Mounting Mount drum so that the axis of drum is horizontal and vent cap is not more than 15 degrees off of top vertical Check mounting bolts and base plate before executing a lift Hoist Maintenance Procedures
Air Hoist Pre Lift Operational Test All test should be done by trained qualified person Visually inspect hoist before lift and prepare a JSA with consideration to the following items: – Operator Qualifications – Cargo weights – Lifting, lowering, swing, and lift path – Containment and spill potential – Weight capacity limitations of hoist – Weather and site conditions – Operation of clutches, brakes, and paws – Locking safety devices – Wire rope is correctly rated for hoist Sheaves, and application – Wire rope anchor screw on drum – Stability and anchor points of hoist – Read all warning information on hoist BU7A 1K Hoist K5UL 6 K Hoist 22 K IR Hoist
Before Each Daily Use of the Hoist Start each use of hoist as if it is the first task of the job. Never assume that the hoist is ready for use before YOU do your INSPECTION Review the troubleshooting guide on common winch symptoms, probable causes and remedies Check all air hoses connections and do a pre-start inspection on the power source (air compressor) Make sure air supply is clean and free from moisture Check air hoist position and mounting to surface before use Conduct a detail inspection all components (brake lining and handle) and moving parts on hoist before using hoist. Make sure at least 3 wraps of wire are on the drum before use and never have less than three wraps at all times Inspect wire and verify wire rope diameter to match load Make sure PPE is worn during operations Air Hoist Safe Operating Instructions CAUTION – Never perform maintenance while the hoist is under a load. Disconnect all air lines and tag before maintenance. Air exhaust from the motor can cause debris to fly.
Never lift a load of unknown weight or weight greater than winch capacity Never use winch rope as a sling Always stand clear of load and never carry load over people Insure clutch is fully engaged and do not disengage clutch with load Do not “side pull” or “yard” hoist Do not operate with kinked, twisted, or damaged wire Make sure wire winds properly on drum Standard Formula is 20 times winch diameter for self winding Ease slack out of wire when starting a lift. Do not jerk or yank the load Be sure no objects are in the way of load Always test winch to MAX capacity with dead pull to check rigging and winch mount tie downs Avoid shock loads Any product will break if abused, misused, overused, or not maintained properly Shut off air supply when winch is left unattended Be certain that load is seated in the saddle of the hook Do not divert attention away from a suspended load Do not use winch as a ground for welding or attach a welding electrode to winch or sling Do not leave load suspended for an extended period of time-never unattended Always check brake and lubrication before lift Never - ever do anything you believe to be unsafe Do not swing a suspended load If communication is lost with the operator “All Stop” If unsure of directions given, “ All Stop” Operator can “STOP” lift at anytime if he feels that it is unsafe Attachments must have the same working load as wire and hoist (clips, hooks, shackles) Air Hoist Safe Operating Instructions
When paying out ensure wire is: Is smoothly paying out and drum is not over running the wire rope, causing a slack wire rope condition Wire is seated in all sheaves and sheaves are rotating with wire rope Not making any unusual noises (snapping or popping) Not damaged or worn Kept under tension to prevent loose wraps Properly ensure in anchor screws and no less than three wraps on the drum When hauling-in ensure that wire rope is: Tightly wound on drum – use tension to keep wraps tight Spool onto drum evenly with no overlapping Wire is seated in all sheaves and sheaves are rotating with wire rope Air Hoist Safe Operating Instructions
For top performance and maximum durability, operate this winch at 90 psi (6.2 bar/620 kPa) of air pressure Air Hoist Information Chart
Morgan City Rentals Air Hoist 22,000 lbs. Air Hoist Model FA ,250 lbs. Man-Rider Air Hoist Model FA525 MR Make sure the right hoist is selected for the JOB!
Morgan City Rentals 28 K Air Hoist Capacities AW4A-40 28,000 lbs.
Air Hoist Models Wire Capacities
Never exceed working load limit Keep out from under a raised load Avoid Shock Loads Inspect hoist regularly Service regularly Air Hoist Models Wire Capacities
Wire Rope Spooling Criteria – When reeling wire rope from one reel to another, it is preferable for the rope to travel from top to top – Hoist should be spooled with the recommended wire rope size. Ensure tension is applied to wire rope when spooling onto drum (approximately 10% of working load is recommended. – Cutting and seizing wire rope – should be properly seized on both sides of the cut, if not wire will unravel. Use proper PPE when working with wire – Do not install wire that has been overloaded or stretched – Make sure wire is properly attached to the drum with the set screws. Wire rope anchors are not intended to retain the full load. Ensure three wraps of wire are always on the drum. Less than three wraps will allow rope anchors to loosen. – Keep tension on the wire while spooling on drum and guide each wire close to the preceding wrap – After installation, allow wire to run through a cycle of operation at low speed
ANSI ASME B 30.9 Safety Code Section 9-2.1: Construction Wire Rope Material The wire rope slings covered by this Chapter shall be as specified in Tables 4 through 11 based upon nominal wire rope strength as shown in Federal Specification RR-W-410 and Military Specification MIL-W (except for fatigue requirements which are not applicable to sling usage). Grades, types, sizes, and constructions other than those specified in Tables 4 through 11 may be used. When such slings are used, the sling manufacturer shall be consulted for specific data Minimum Sling Length (a) Slings made of rope with 6 x 19 and 6 x 37 classification, and cable laid slings shall have a minimum clear length of rope 10 times the rope diameter between splices, sleeves, or end fittings. (b) Braided slings shall have a minimum clear length of rope 40 times the component (individual) rope diameter between the loops or end fittings. (c) Grommets and endless slings shall have a minimum circumferential length of 96 times the body diameter of the grommet or endless sling All swaged-socket and poured-socket assemblies shall be proof tested to the wire rope or fitting manufacturers recommendations but in no case greater than 50% of the component wire ropes' or structural strands' nominal strength. All other assemblies shall be proof tested when specified by the purchaser. The proof load for swaged- socket and poured-socket assemblies shall be a minimum of two times the vertical hitch rated load but shall not exceed 2.5 times the vertical hitch rated load The proof load for single leg hand tucked slings shall be a minimum of the vertical hitch rated load and shall not exceed 1.25 times the vertical hitch rated load The proof load for mechanical splice single leg slings and endless slings shall be two times the vertical hitch rated load The proof load for multiple leg bridle slings shall be applied to the individual legs and shall be either 1.25, for hand tucked splice, or 2, for mechanical splice, times the vertical hitch rated load of a single leg sling of the same size, grade, and construction of rope. Any master link to which multiple leg slings are connected shall be proof loaded to two times the force applied by the combined legs.
Section 9-2.5: Sling Identification Marking Requirements. Each sling shall be marked to show: (a) name or trademark of manufacturer, (b) rated load for the type of hitch(es), and the angle upon which it is based, (c) diameter or size Sling identification shall be done by the sling manufacturer Maintenance of Sling Identification. Sling identification should be maintained by the user so as to be legible during the life of the sling. Section 9-2.6: Effects of Environment Fiber core wire rope slings of all grades shall not be exposed to temperatures in excess of 180 °F (82°C) When wire rope slings of any grade are to be used at temperatures above 400°F (204°C) or below -60 °F ( -51°C), the sling manufacturer should be consulted The strength of slings can be affected by chemically active environments as sling materials may be susceptible to damage from caustic or acid substances or fumes; strongly oxidizing environments attack all common sling materials. The sling manufacturer should therefore be consulted before slings are used in chemically active environments. Section 9-2.7: End Attachments All load bearing components welded prior to or after assembly in the sling shall be proof tested Welding of handles or any other accessories to end attachments, except covers to thimbles, shall be performed prior to the assembly of the sling Knots. Eyes in wire rope slings shall not be formed using knots Wire Rope Clips and Hooks Wire rope clips shall not be used to fabricate wire rope slings except where the application of slings prevents the use of prefabricated slings or where the specific application is designed by a qualified person Slings made with wire rope clips should not be used as a choker hitch Wire rope clips shall be drop-forged steel of the single saddle (U-bolt) or double saddle type clip. Malleable cast iron clips shall not be used. For spacing, number of clips, and torque values, refer to the clip manufacturer's recommendation. ANSI ASME B 30.9 Safety Code
Air Hose - Safe Practices All hose assemblies should be viewed as potential hazards. This document is designed to inform and educate anyone who manufactures, specifies, supplies, purchases, assembles, uses, maintains or tests any hose assemblies or its component parts. The proper selection and maintenance of hose, couplings, attachment devices and accessories are imperative. It is the end users responsibility to identify to the distributor the application and any special conditions that the hose assembly must meet. It is the distributors responsibility to supply the proper assembly for the intended application. Accidents and down time may occur if hose assemblies are not properly selected for the specific application. The performance and safety of the assembly is affected by the quality of the individual components. The use of the acronym S.T.A.M.P.E.D. (Size, Temperature, Application, Media, Pressure, Ends) will help in the proper selection of the hose assembly components. Failure to use these procedures can result in serious injury and destruction of property and equipment. When fabricating and specifying hose assemblies ask the following questions: Size: What is the I.D. (Inside Diameter) of the hose? What is the O.D. (Outside Diameter) of both ends of the hose? What is the overall length of the assembly required? Temperature: What is the temperature range of the media (product) that is flowing through the hose assembly? What is the temperature range of the environment that surrounds the outside of the hose assembly? Application: How is the hose assembly actually being used? Is it a pressure application? Is it a vacuum (suction) application? Is it a gravity flow application? Are there any special requirements that the hose assembly is expected to perform? Is the hose being used in a horizontal or vertical position? Are there any pulsations or vibrations acting on the hose assembly? Media: What is the media/material that is flowing through the hose assembly? Being specific is critical. Check for: Abrasive materials, chemical compatibility, etc. Pressure: What is the maximum pressure including surges (or, maximum vacuum) that this hose assembly will be subjected to? Always rate the maximum working pressure of your hose assembly by the lowest rated component in the system. Ends: What couplings have been requested by the user? Are they the proper fittings for the application and hose selected? Hose assemblies must be inspected prior to each use. Worn out fittings, attachment devices, hose and accessory items must be replaced. Retaining devices (safety devices) such as clips, cables or chains must be used. Clamps must be checked regularly to the specified torque found in the Dixon literature. Under no circumstance should any coupling be disconnected while under pressure unless the coupling is specifically designed to do so. Disconnecting couplings under pressure could result in serious injury or death, and destruction to property and equipment.
Air Hose Safe Practices Before attempting to disconnect the hose from the air line, the air should be cut off. Store hose coils off the floor promptly after use. A safety-check valve installed in the air line at the manifold will stop the air supply automatically if a line break occurs. A short chain fastened to the hose and to the tool housing can keep the hose from thrashing about if a coupling breaks Check to be sure the air hose is in good condition. Air hoses are designed to withstand pressure, but they become weakened at points where they have been bent, where they are attached to the shutoff valve and to the nozzle, and where they have been kinked. These weak points may swell like a balloon and burst, throwing pieces of hose in every direction. Always coiling the hose without kinks -- and hanging it over a broad support, not over a hook, nail, or angle iron when it is not in use. Air hoses An air hose presents the same tripping or stumbling hazard as cords on electric tools. Persons or materials accidentally hitting the hose may unbalance the operator or cause the tool to fall from an overhead place; Air hoses should be protected from trucks and pedestrians by runways or planks laid on either side of the hose; Do not disconnect an air hose from the tool being used, and use that air hose for cleaning purposes; Air should be cut off before attempting to disconnect the air hose from the line. Air pressure in the hose should also be cleared before disconnecting; Eye protection is required when operating air power tools. (See OP-G-1.3.2); Safety-check valves are recommended to automatically shut off air supply if a crack or leak occurs.