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Summary of Contents for McElroy Pit Bull 26
- Page 1 Operator’s Manual ® Pit Bull Fusion Machine Manual: 711501 Revision: F 10/18 Original Language: English...
- Page 2 Cancer and Reproductive Harm - www.P65warnings.ca.gov This product and other products could be protected by patents or have patents pending. All the latest patent information is available at patent.mcelroy.com...
- Page 3 When fusing thermoplastic pipe materials, refer to the pipe manufacturer's fusion procedures or appropriate joining standard. The Pit Bull 26 fuses 2” IPS through 6” DIPS (63mm through 180mm). With reasonable care and maintenance, these machines will give years of satisfactory service.
- Page 4 McElroy or has become damaged McElroy reserves the right to make any changes in or due to misuse, negligence or casualty, or has not been improvements on its products without incurring any operated or maintained according to McElroy’s printed...
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Page 5: Table Of Contents
Install Knife Edge Inserts ........4-1 COPYRIGHT © 2018, 2017, 2016, 2014, 2010 McELROY MANUFACTURING, INC. Tulsa, Oklahoma, USA All rights reserved All product names or trademarks are property of their respective owners. - Page 6 Specifications Pit Bull 26 Fusion Machine ....... . 8-1 TX04145-8-3-10...
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Page 7: Safety Alerts
Follow all applicable federal, state, local, and industry specific regulations. McElroy Manufacturing, Inc. cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this manual and on the machine are therefore not all inclusive. -
Page 8: General Safety
Fusion Equipment Safety General Safety Safety is important. Report anything unusual that you notice during set up or operation. LISTEN for thumps, bumps, rattles, squeals, air leaks, or unusual sounds. SMELL odors like burning insulation, hot metal, burning rubber, hot oil, or natural gas. -
Page 9: Electric Motors Are Not Explosion Proof
Fusion Equipment Safety Electric Motors are Not Explosion Proof Electric motors are not explosion proof. Operation of these components in an explosive atmosphere without necessary safety precautions will result in serious ¡PELIGRO! injury or death. See Section "Facer" in the Overview section for instructions on removing brushes from facer motor. -
Page 10: Heater Is Hot
Fusion Equipment Safety Heater is Hot The heater is hot and will burn clothing and skin. Keep the heater in its insulated heater stand or blanket when not in use, and use care when heating the pipe. NOTICE: Use only a clean non-synthetic cloth such as a cotton cloth to clean the heater plates. -
Page 11: Overview
Overview Theory of Heat Fusion The principle of heat fusion is to heat two surfaces to a designated temperature, and then fuse them together by application of force. This pressure causes flow of the melted materials, which causes mixing and thus fusion. When the thermoplastic material is heated, the molecular structure is transformed from a crystalline state into an amorphous condition. -
Page 12: Reversible Jaws & Levers
Overview Reversible Jaws & Levers The Pit Bull 26 fusion machine's upper jaws and control levers are reversible from one side to the other. This allows the machine to be operated from either side. The jaws can be removed by pulling the pivot pin out. -
Page 13: Facer
Overview Facer The facer is a McElroy rotating planer block design. The blade holders each contain three cutter blades. The block rotates on ball bearings and is chain driven (enclosed in lubricant) by a heavy duty electric motor. When operating in an explosive atmosphere, operate the facer manually. -
Page 14: Facer Stand
Overview Facer Stand The facer stand is for holding the facer when not in use. The facer stand is offset to one side. NOTICE: The facer stand is offset to one side. Place the facer with the motor as shown to prevent tipping. TX04148-8-3-10 Insulated Heater Stand The heater should always be stored in the insulated heater stand... -
Page 15: Operation
Operation Read Before Operating Before operating this machine, please read this manual thoroughly, and keep a copy with the machine for future reference. When fusing thermoplastic pipe materials, refer to the pipe manufacturer's suggested procedures or appropriate joining standard. TX04688-03-25-14 Prepare Heater Heater is not explosion proof. -
Page 16: Load Pipe Into Machine
Operation Load Pipe Into Machine Clean the inside and outside of pipe ends that are to be fused. Open the upper jaws and insert pipe in each pair of jaws with applicable inserts installed. Let the ends of the pipe protrude about 3/4"... -
Page 17: Check Alignment Of Pipe
Operation Check Alignment of Pipe Bring the pipe ends together under sufficient force to overcome any pipe drag or friction in the system. Check for alignment and proper face off. If high/low (misalignment) exists, adjust by tightening the clamp on the high side and reface the pipe. NOTICE: When clamping, do not over-tighten the clamp knobs because machine damage can result. -
Page 18: Inserting Heater
Operation Inserting Heater The heater is not explosion proof. Operation of heater in an explosive atmosphere without necessary safety precautions will result in serious ¡PELIGRO! injury or death. If operating in an explosive atmosphere, heater should be brought up to temperature in a safe environment, then unplugged before entering the explosive atmosphere for fusion. -
Page 19: Optional Use Of Torque Wrench
When a specified Interfacial Pressure is required in the fusion procedure, a torque wrench can be used. IMPORTANT: Use a torque wrench with the Pit Bull 26 fusion machine. Place an adapter (Part # 410802) or (Part # 713901) in the lever socket. A torque wrench is required when using the torque wrench adapter. -
Page 20: Special Operation - Knife Edge Inserts
Special Operation - Knife Edge Inserts Install Knife Edge Inserts The knife edge inserts are used when clamping to a pipe that has a fitting fused to the pipe. Pull the pin hold the upper fixed jaw to the lower jaw. Remove the upper jaw. -
Page 21: Maintenance
Maintenance Preventative Maintenance To insure optimum performance, the machine must be kept clean and well maintained. With reasonable care, this machine will give years of service. Therefore, it is important that a regular schedule of preventive maintenance be kept. Store machine inside, out of the weather, whenever possible. TX00428-8-10-95 Cleaning the Machine Clean the machine with a soap and water wash as needed. -
Page 22: Remove Dirt
Maintenance Remove Dirt Remove dirt from jaw and insert serrations and clamp knob eyebolts. TX00865-1-30-96 Clean and Lubricate Bearings All clamp knobs are equipped with thrust bearings to reduce friction and improve efficiency of the clamping screw. Keep these bearings clean by washing in kerosene or solvent. They should be lubricated with light machine oil. -
Page 23: Installing Butt Fusion Heater Plates
Maintenance Installing Butt Fusion Heater Plates The heater body of this assembly is not coated. Coated butt fusion heater plates are available for all butt fusion applications. Butt fusion heater plates are installed with eight stainless steel cap screws. Care should be taken to assure that the butt fusion heater plates are seated on the heater body, and that there is no foreign matter trapped between these surfaces. -
Page 24: Heater Indicator Light
If the heater is not operating properly, the control will attempt to turn the heater off and the red indicator light will flash rapidly. If this occurs, disconnect the power and take it to a McElroy Authorized Service Center for repair. -
Page 25: Removable Cam Locks
Maintenance Removable Cam Locks Should the cam locks become worn or damaged they can be replaced. The cams are attached to the shaft by a keyhole joint and are held by springs. TX02728-6-5-07 5 - 5... -
Page 26: Maintenance Checklist
Maintenance Checklist Pit Bull 26 Fusion Machine Checklist Item to Check Satisfactory Needs Repair Comments Repair UNIT Machine is clean Clamp knob bearings lubricated and move freely Movable jaw lubricated and moves freely Locking cam works properly Guide rods are not damaged... - Page 27 FUSION FORCE = 36 ft/lbs + Drag (measured in ft/lbs) 1/2" drive, 15" torque wrench 3/8" drive, 13.625" torque wrench Torque Wrench Pit Bull 26 These tables are only valid when using Torque Wrench Pit Bull 26 Reading Jaw Axial Force...
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Page 28: Specifications
Specifications Pit Bull 26 Fusion Machine Specifications: Designed for 2" IPS to 6" DIPS pipe (63mm to 180mm) Machine Dimensions Width: 19 11/16" (425mm) Length: 15 3/8" (391mm) Height: 30 7/16" (773mm) Weight: 50 lbs. (22.7Kg) Heater: 1200 W, 120 VAC, 60 Hz... - Page 29 When you are finished, it folds for easy storage and has wheels for transporting your machine to the next site. Features: • Designed for use with the Pit Bull 26, Pit Bull 14, and 2LC fusion machines • Compatible with McElroy pipe stands, PolyHorse® & PolyPorter®...
- Page 31 About this manual . . . McElroy Manufacturing continually strives to give customers the best quality products available. This manual is printed with materials made for durable applications and harsh environments. This manual is waterproof, tear resistant, grease resistant, abrasion resistant and the bonding quality of the printing ensures a readable, durable product.
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