Farr HD8625 - Page 24

To Next Page

To Previous Page

2.8

hD8625 8-

” 35K Tong

Technical Manual

IllustratIon 2.C.2: HyDraulIC ComPonent IDentIfICatIon 01

IllustratIon 2.C.3: HyDraulIC ComPonent IDentIfICatIon 02

seTup & operaTion

Main Page

Table of Contents8
Illustration 1.A.1: Hd8625 Tong13
Illustration 1.A.2: Hd8625 Power Tong Dimensions14
Sling / Load Bearing Device Safety17
Illustration 2.A.1: Sling Angle17
- Inspection Of Slings18
- Proper Use of Load-Bearing Devices19
- Storage of Load-Bearing Devices19
Illustration 2.B.1: Major Component Identification20
Major Component Identification20
Illustration 2.B.2: Major Component Identification21
Illustration 2.B.3: Major Component Identification22
Hydraulic Schematics & Valve Identification23
Hydraulic Connections25
Illustration 2.D.2: Hydraulic Connections26
- Jaw & die Removal27
Tong / Backup Jaw Availability & Installation26
- Availability26
Illustration 2.E.1: Jaw Removal27
Tong Rig-Up & Leveling27
- Suspension & Restraint27
Illustration 2.F.1: Tong Suspension Relative To Axial Centre28
- Tong Leveling29
Illustration 2.F.3: Tong Leveling29
Illustration 2.F.4: Tong Leveling30
- Valve Operation31
Tong Operation30
- Initial Start-Up and Break-In Procedure30
Illustration 2.G.1: Tong Rotation Control Valve31
- Shifting Gears33
- General Comments33
Illustration 2.G.4: Tong Manual Shift Control33
Illustration 2.H.1: Master Lifting Link34
Making And Breaking Connections34
- Making a Connection34
Illustration 2.H.2: Backing Pin Set To "Make-Up" Position35
Illustration 2.H.3: Lift Cylinder Control - Raise35
Illustration 2.H.4: Opening Tong Door36
Illustration 2.H.7: Lift Cylinder Control - Lower38
- Breaking a Connection39
- Illustration 2.H.8: Setting Backing Pin To "Break-Out" Position39
Extreme Cold Weather Operation Procedures41
General Maintenance Safety Practices43
Cleaning43
Preventive Maintenance Practices43
Illustration 3.D.1: Cam Follower Lubrication44
Illustration 3.D.2: Support Roller Lubrication44
Lubrication44
Illustration 3.D.5: Pinion Lubrication Points46
Illustration 3.D.10: Door Cylinder49
Illustration 3.E.1: Brake Band Adjustment49
Brake Band Adjustment49
Door Latch Adjustment49
Shifter Detent Force Adjustment50
F. RECOMMENDED PERIODIC CHECKS 1. Door Stop Spring51
Recommended Periodic Checks51
- Door Stop Spring51
- Shifting Shaft51
- Backing Pin51
- Torque Gauge Assembly51
Overhaul Procedures - Disassembly51
Illustration 3.H.1: Tong Assembly - Rotary Gear Installation54
Assembly Procedures54
Illustration 3.H.2: Tong Assembly - Gear Assembly Positioning55
Illustration 3.H.3: Tong Assembly - Top Fastener Locations56
Illustration 3.H.7: Tong Assembly - Top Shifter Bushing Assembly59
Illustration 3.H.8: Tong Assembly - Front Cage Plate Spacers60
Illustration 3.H.9: Tong Assembly - Safety Door Valve Installation61
Illustration 3.H.10: Tong Assembly - Rigid Sling Adjustment Bolt Installation62
Daily Inspection & Maintenance Checklist (Power Tong)64
Monthly Maintenance Checklist - Power Tong66
Tubular Connection Equipment De-Commissioning & Shipping Procedure69
Illustration 3.L.1: Shipping Instructions - Pallet71
Illustration 3.L.2: Shipping Instructions - Wrapping Chain Sling & Strapping To Pallet72
Tubular Connection Equipment Re-Commissioning Procedure73
Tong Will Not Develop Sufficient Torque75
Illustration 4.B.1: Relief Valve Troubleshooting - Temporary Gauge Installation76
Relief Valve Is Incorrectly Set Or Not Functioning76
Safety Door Does Not Operate Or Is Malfunctioning78
Tong Running Too Slowly79
Failure Of Jaws To Grip Pipe80
Failure or Difficulty of Tong to Shift81
General Comments82
Gear Train Layout84
Support Roller87
Pinion Assembly95
Clutch Assembly96
- Leg Weldments102
- Hydraulic Supports105
- Rigid Sling Assembly114
Basic Torque Measurement117
Illustration 6.A.2: Tension Load Cell117
Illustration 6.A.3: Compression Load Cell117
Illustration 6.A.5: Turn Counter Encoder Mount Exploded120
Troubleshooting121
Periodic Inspection And Maintenance122
- Inspection122
- Fluid Recharge122
- Repair And Calibration123

Farr HD8625 - Page 24

Table of Contents

Related product manuals