McElroy Pit Bull 28 User Manual

56 pages

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Manual: T5034102 Revision: H 01/19

Pit Bull

FUSION MACHINES

Operator’s

Manual

Original Language: English

Table of Contents5
Safety Alerts8
Read and Understand8
General Safety9
Wear Safety Equipment9
Heater Is Not Explosion Proof9
Electric Motors Are Not Explosion Proof10
Pipe Handling Safety10
Units with Hydraulics11
Electrical Safety11
Crush Points12
Facer Blades Are Sharp12
Heater Is Hot12
Fusion Procedures12
Overview13
Theory of Heat Fusion13
Carriage Assembly14
Hydraulic Fluid Reservoir14
Filter and Filler Cap14
Motor and Pump15
Relief Valve15
Hydraulic Cylinders16
Hydraulic Manifold Block16
Facer17
Heater17
Insulated Heater Stand18
Electrical Box18
Operation19
Read before Operating19
Setup19
Check Hydraulic Fluid Level19
Connecting Machine to Power20
Pump Motor20
Prepare Heater21
Install Clamping Inserts21
Outrigger22
Loading Pipe into Machine22
Positioning Pipe in Machine23
Begin Facing23
After Facing24
Determine Drag Pressure24
Set Fusion Pressure25
Check for Slippage25
Check Alignment25
Position Carriage for Heater Insertion26
Check Heater Temperature26
Inserting Heater26
Heat Pipe27
Fusing the Pipe27
Opening Movable Jaws28
Opening Fixed Jaws28
Install Next Piece of Pipe28
Special Operation - in Ditch29
Remove 3-Jaw Assembly from the Carriage29
Remove Facer from Pit Bull 28 and 25030
Remove Facer from Pit Bull 412 and 61831
Manual Facer Operation32
Removing Top Jaws33
Lower 3-Jaw or 4-Jaw Carriage into Ditch33
Clamp Carriage Assembly to Pipe34
Attach Hydraulic Hoses35
Make Fusion Joint35
Remove Carriage Assembly from Ditch35
Reassemble Carriage and Facer35
Special Operations - Saddle Fusion Procedure36
Saddle Fusion Procedure for Pit Bull 28CU36
Install Heater Adapters36
Assure Saddle will Fit36
Install Clamping Inserts37
Attach Carriage Assembly to Main37
Set Hydraulic Pressure37
Clean Surfaces38
Clamp Fitting38
Test for Slippage38
Prepare Heater39
Heat Pipe and Fitting39
Remove Heater40
Fuse Fitting to Pipe40
Allow Joint to Cool40
Special Operations - Lifting41
Lifting Safety41
Maintenance42
Preventative Maintenance42
Washing the Machine42
Check Hydraulic Fluid42
Change Hydraulic Fluid and Filter42
Check Gauge43
Clean Jaws and Inserts43
Clean Thrust Bearings43
Clean Eyebolt Threads43
Fasteners Must be Tight44
Facer44
Facer Blades44
Clean Heater Surfaces44
Bleeding Air from Hydraulic System45
Installing Butt Fusion Heater Plates45
Adjusting Heater Temperature46
Heater Indicator Light46
Maintenance Checklist47
Fusion Machine Checklist47
Determining Fusion Pressure48
Determining Fusion Pressure - Sidewall49
Specifications51
Generator Sizing Form53

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McElroy Pit Bull 28 Specifications

General

Brand	McElroy
Model	Pit Bull 28
Category	Welding System
Language	English

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