Westco 16-25 Скачать руководство пользователя страница 20

Rotary Centering 

 

Adjustment  

WARNING: Proper adjustment of the rotary is essential to tong operation and 

 

reliability. 

 

With the rotary removed and referring ti Figure 4-5, loosen locknuts on the shafts at 

 

points 1 through 6 and 9 through 14. Remove the bolts and lockwashers from the shafts. 

 

Position the shafts with the high-point arrow located radially away from the rotary. 

 

If half rollers are installed at points 7 and 8, position the high-point arrow radially away 

 

from the rotary. Lock the shaft into this position by tightening the locknut and installing two 

 

bolts and lockwashers. 

 

Install the rotary assembly and close and latch the doors. Then adjust latch pin until 

 

tight on cam and secure shaft in place (to nearest full bolt hole) with bolts and lockwashers. 

 

WARNING: Check for gear mesh. Improper meshing of gears can result in 

 

tooth breakage. 

 

1. Use shafts at position 1,4,11 and 14 to position fully the rotary. 

 

2. Rotate shaft 1 counterclockwise until rotary teeth mesh with idler gears. 

 

3. Rotate shaft 4 counterclockwise ¼ turn and then rotate shaft 11 clockwise ¼ turn. 

 

Repeat adjustment on shafts 4 and 11 until rotary is snug and positions of high point 

 

arrows on these shafts are in approximately the same position in relation to the 

 

case opening. 

 

4. Rotate shaft 1 counterclockwise and shaft 14 clockwise simultaneously until rotary 

 

is snug and positions of high point arrows on these shafts are in approximately the 

 

same position in relation to the tong opening. 

 

5. Rotate shafts 2,3,5 and 6 counterclockwise until cams on shafts make their guide 

 

rollers lightly touch rotary. 

 

6. Rotate shafts 9, 10, 11, 12 and 13 clockwise until cams on these shafts make their 

 

guide 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 

 

relationship if necessary. 

 

8.

 Secure case shafts as follows: 

 

If any two holes in the shaft shoulders align with tapped holes in top plate for shafts 

 

4, 5, 6, 9, 10 and 11. rotate shafts 4, 5 and 6 clockwise and rotate shafts 9, 10 and 11 

 

counterclockwise ¼ to ½ shaft shoulder hole. At this point, two opposing shaft 

 

shoulder holes should align with two tapped holes in the top plate. (A sharp object 

 

is required to align shaft shoulder holes with two of the four tapped holes in the top 

 

plate for each shaft). 

 

If the shaft shoulder holes are not in full alignment with two opposing tapped holes in 

 

the top plate, rotate shafts 4, 5 and 6 clockwise and rotate shafts 9, 10 and 11 

 

counterclockwise ¼ to ½ shaft shoulder hole. Pierce the guide roller shaft gasket with 

 

a sharp object to locate two opposing shaft shoulder holes which are in full 

 

alignment with two of the four tapped holes in the top plate. 

 

After adjustment, secure shafts 4, 5, 6, 9, 10 and 11 with bolts and lockwashers. 

 

9.

 Secure door shafts as follows: 

 

For those tongs with tandem 2 inch hydraulic motors, follow procedures in 

 

paragraph 8, adjusting shafts 1, 2 and 3 clockwise and shafts 12, 13 and 14 

 

counterclockwise. 

 

For tongs with other motors, use procedures similar to paragraph 8, but adjust 

 

½ to full hole (rather than ¼ to ½ hole). Adjust shafts 1, 2 and 3 clockwise while 

 

adjusting shafts 12, 13 and 14 counterclockwise. After adjustment, secure shafts 

 

1, 2, 3, 12, 13 and 14 with bolts and lockwashers. 

 

10. Loosen door latch shaft and adjust according to door latch adjustment procedure. 

 

WARNING: Bolts prevent loss of adjustments and carry no tension loads. Over-  

torquing of locknuts or bolts prevents free guide roller rotation. 

 

 
 

Section 4 Page 4  

Содержание 16-25

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 29: ......

Страница 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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Страница 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...

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

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