Westco 16-25 Product Manual Download Page 4 | Manualshive

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Westco 16-25 Product Manual Download Page 4

Section 1

General Description

This manual describes the function, installation, operation

and maintenance of the Westco Model 16 hydraulic power
tong. In this section, the functions of the tong, system
specifications, and options and accessories are described.

Figure 1-1: Functional elements of the Model 16 tong

Section 1 Page 1

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Summary of Contents for 16-25

Page 1: ...ra CA93001 Mailing Address P O Box 66 Oak View CA 93022 PRODUCTMANUAL MODEL 16 25 CASING TONG MANUFACTURED IN THE USA SPECIFICATIONS MAINTENANCE OPERATIONS ASSEMBLY 805 648 5004 805 648 5018 CONTACT w...

Page 2: ...General Description Functions 1 2 Specifications 1 5 Options and Accessories 1 6 Section 2 Installation 2 1 Equipment Considerations 2 1 Hanging the Tong 2 2 Connecting the Hydraulic Lines 2 2 Section...

Page 3: ...Drawing Case Door Assembly Parts List for Case Door Assembly For Tongs with Half Rollers Installation Drawing Case Door Assembly For Tongs with Half Rollers Parts List for Gear Box Assembly Installati...

Page 4: ...ion installation operation and maintenance of the Westco Model 16 hydraulic power tong In this section the functions of the tong system specifications and options and accessories are described Figure...

Page 5: ...is applied Figure 1 2 Schematic diagram of hydraulic system Hydraulic Drive System Figure 1 2 is a schematic drawing of the hydraulic drive system Hydraulic pressure from a separate power unit is app...

Page 6: ...g pin During make up operations the pipe to be turned is first enclosed in the tong and the rotary door is closed and latched Then with the reversing pin in the make up position as described later the...

Page 7: ...Figure 1 3 Schematic of drive train in high gear Figure 1 4 Low gear...

Page 8: ...gh speed operation the power source should develop 70 gpm 227 1 lpm at pressure up to 1 000 psi 69 bar A load responsive power source should be used for optimum results Note that the pressure output p...

Page 9: ...g control lever Pulling the lever outward provides pressure from the hydraulic power unit to operate the lift cylinder upward and thus to raise the tong whereas pushing the control lever forward opera...

Page 10: ...d jaws according to the size of pipe being used Refer to Jaw Installation and parts Section 7 for available jaw sizes and installation procedures WARNING Do not attempt to change jaws with power unit...

Page 11: ...on Connect the backup line to the torque gauge to restrain tong rotation and to provide torque readings for operations WARNING To prevent serious bodily injury secure tong to derrick with a backup lin...

Page 12: ...vailable Torque Gauge Assembly Once installed the torque gauge assembly becomes an integral part of the unit To install the torque gauge on the tong proceed as follows 1 With mounting screws mount tor...

Page 13: ...ure 3 1 Tong controls Preoperating Checks After installing the system check to be sure that all necessary adjustments are made and that the system is functioning correctly Before attempting operation...

Page 14: ...igure 4 1 is out of the pocket rotary lockup and subsequent case damage may occur Pull the throttle handle to neutral and move the shifting lever to the low speed position down Again push the throttle...

Page 15: ...ong on the casing section positioned for make up or breakout Close the doors Then operate the tong as follows Operating the Tong WARNING Be sure no part of the body or clothing is in tong rotary area...

Page 16: ...handle in the opposite direction to back off Center the plunger in pocket open doors and pull tong away from joint Reposition casing tong away from rotary table as necessary and repeat the operating p...

Page 17: ...s accessories for obvious damage evidence of hydraulic leaks etc Refer to the overhaul procedures for removal and replacement of any faulty parts Inspect jaw dies to be sure that the biting edge is no...

Page 18: ...s Lubrication Proper lubrication is important to the operation and long life of the tong Hydraulic Fluid Requirements Grease Zerts During normal operation the tong should remain charged with hydraulic...

Page 19: ...isassembly and Parts Section 8 3 Pack the unit with the specified gear grease see Figure 4 3 by liberally applying Grease through the back rotary opening in case Figure 4 2 Figure 4 4 Door latch Figur...

Page 20: ...rollers slightly touch rotary 7 When the guide rollers are snugged up the high point arrow should be in approximately the same position in relation to the case opening Readjust to obtain this relatio...

Page 21: ...each shift thereafter To check the operation of the shifting locator pin raise the shifting handle to the high speed position and verify that the lever remains in the high speed position until consid...

Page 22: ...of jaws in tong or wrong rollers in jaw Drag magnet does not work Dies fail to grip pipe Undersized pipe Tong not hanging perpendicular to pipe Magnets not strong enough Oversized pipe Power unit pres...

Page 23: ...llers Rotary plunger in pocket when torque was applied or torque was applied too rapidly not allowing plunger to depress Check hydraulic connections and lines for restrictions and obstructions Check s...

Page 24: ...identified in Tong Disassembly and Parts Section 8 Disassemble the tong only to the extent required for necessary part replacement and or overhaul To disassemble the tong follow the exploded illustrat...

Page 25: ...ng is free running If unusual noises do occur check any parts that have just been repaired or replaced for misalignment rubbing or grinding Refer to Troubleshooting Repeat the test procedure with the...

Page 26: ...o neutral position when released Gear box oil is up to level of upper magnetic plug hole Gears and rotary are fully lubricated with grease Mounting clevis is secure and tong is leveled All hanging har...

Page 27: ...de required clearance Install the drag magnet by holding the jaw upright and placing the magnet on the retaining pins with the grooved face of the magnet away from the jaw Hold the magnet in place and...

Page 28: ...Figure 7 1 Installation of 6 5 8 through 13 3 8 inch jaws Section 7 Page2...

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Page 30: ...Jaw roller shaft 1 100122 001 Flat die 3 109602 001 Flat die 2 100114 001 Retainer 1 Figure 7 3 Installation of 16 inch jaw Figure 7 4 Parts for 16 Inch Jaws Pipe Req d Req d Req d Size Part No per N...

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Page 35: ...ing item can be removed without disassembly of the case Rotary assembly Piping manifold Motor Gear box assembly Door assemblies Door hinge bearings See Figures 8 6 and 8 8 Guide rollers See Figures 8...

Page 36: ...ving retaining bolt 112426 001 and lockwasher 190100 095 Replace the assembly 112414 001 or roller 100046 001 and pin 190105 549 as required The cam inserts 112374 001 can be removed by removing the r...

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Page 40: ...Figure 8 6 Tong case body door assembly Section 8 Page 6...

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