T-WREX PARTS, DRAWINGS, SERVICE & OPERATION MANUAL T-WREX JR. MODEL 40000 S/N 111+ HAWK INDUSTRIES INC. 1245 EAST 23RD STREET SIGNAL HILL, CA 90755 USA PHONE: +1-562-424-0709 FAX: +1-562-490-9959 WWW.HAWKINDUSTRIES.
T-WREX CONFIGURATIONS JR. T-WREX 40000 50’ remote console, pneumatic pilot 51200H remote hydraulic pilot (51886H + 51882) 51200E remote MODBUS RS485 2WIRE control (51886E + 51882) 51200HE remote MODBUS RS485 2WIRE control & rig-floor console (51886E + 51882 + rig floor console 51507H + control handover 51507HE) SR.
AIR AND HYDRAULIC REQUIREMENTS ALL CONFIGURATIONS REQUIRE A HYDRAULIC POWER UNIT CAPABLE OF DELIVERING 20-35 GPM AT 3000 PSI CLOSED-CENTER Compressed Air: 100psi @ 10-20cfm for air piloted models 3
UNIT LOGIC RELAY BOX CONSOLE T-WREX, AIR PILOTED CONTROL SCHEMATIC 4
1507 AIR PILOT SOURCE CONTROL CONSOLE Basic Operation: 1. Set wrenches (pages 75-76) 2. Set spinner (page 78) 3. Set a rotate and an extend limit (page 77) 4. Height adjust for make or break (refer to previous page) 5. Hit GRIP 6. For Make: hit SPIN until shouldered, release hit TORQUE until torqued, release UN-GRIP For Break: hit TORQUE until joint is broken, release hit SPIN until done, release UN-GRIP 7.
51627 MAIN MANIFOLD ASSEMBLY 6
51627 MAIN MANIFOLD ASSEMBLY 7
5250-0528A SPINNER MANIFOLD ASSEMBLY 8
51625 SUPPLY VALVE ASSEMBLY 9
51482 LOGIC PANEL ASSEMBLY 10
51440 ROTATION LIMIT ASSEMBLY 11
51800 CABLE SENSOR 12
51800 CABLE SENSOR 13
51480 RELAY BOX ASSEMBLY 14
51480 RELAY BOX ASSEMBLY 15
T168 50 FOOT CONNECTOR 16
NOTES: 17
51507 CONSOLE ASSEMBLY 18
51507 CONSOLE ASSEMBLY 19
51141 SYNCHRONIZATION ASSEMBLY 20
51141 SYNCHRONIZATION ASSEMBLY 21
51141 SYNCRONIZATION ASSEMBLY ADJUSTMENT T-WREX’s reach assembly consists of front and rear arms that require syncronization. To achieve syncronization front to rear, front and rear hydraulic cylinders must receive an equal volume of hydraulic oil. 51141 is a continously correcting mechanical-input hdyraulic flow divider. adjust hex 51141 locking bolt (1)Extend unit fully. (2)Loosen locking bolt, then tighten snug. (3)Use 1 1/8” wrench to adjust T170 to starting point on cam.
51141 SYNCRONIZATION ASSEMBLY ADJUSTMENT Either back or front arms will extend last. Rotate adjust hex clockwise or counterclockwise accordingly. rear arm extends before front arm, adjust hex counter clockwise to increase flow to front/reduce to rear. front arm extends fully before rear arm, adjust hex clockwise to increase flow to rear/reduce to front. Repeat setps 5 and 6 after each adjustment. The closer the arms get to syncronization, micro adjustments are required.
51210 MAIN SUPPORT ASSEMBLY 24
51210 MAIN SUPPORT ASSEMBLY 25
51235 ROTATION MOTOR 26
NOTES: 27
51211 TROLLEY ASSEMBLY 28
51211 TROLLEY ASSEMBLY 29
51212 EXTEND/RETRACT ASSEMBLY 30
51212 EXTEND/RETRACT ASSEMBLY 31
950TW T-WREX SPINNER 32
950TW T-WREX SPINNER 33
51160 MOTOR CLAMP ASSEMBLY 34
51160 MOTOR CLAMP ASSEMBLY 35
24625 SPINNER GEARBOX 36
24625 SPINNER GEARBOX 37
51300 SPINNER MOUNT 38
51300 SPINNER MOUNT 39
NOTES: 43
OPTIONAL LONG REACH CONFIGURATION
51212L 60
51212L 61
51210L 62
51210L 63
Operation & Service Manual
General Safety Requirements Hawk equipment is installed and operated in a controlled drilling rig environment involving hazardous situations. Proper maintenance is important for safe and reliable operation. Procedures outlined in Hawk manuals are the recommended methods of performing operations and maintenance.
Description T-WREX is a pedestal mounted wrench/spinner combination tool for making up and breaking out threaded tubulars on drilling rigs. A fully operational T-WREX consists of the following assemblies: *Transportation pallet *Pedestal, complete unit *Controls, complete with remote console, and control lines to tool *All documentation OPTIONAL: *Floor socket/recieving tube (PN 51201), cut to 16” in length.
Installation 68
Lifting the T-WREX Before lifting the T-Wrex, verify that the trolley is in the full down position and the extending arms are fully retracted. Use the four lifting shackles attached to lugs on top of the C-Head and Trolley with lifting sling assembly (Sr. sling PN 51702, Jr. sling PN 51202). *Always use the lifting lugs and shackles provided. Nothing else is rated for, nor intended to support the full weight of the T-Wrex.
Transporting the T-WREX Whenever transporting the T-Wrex, make sure the unit is supported in a stable manner. Attach tie-down straps to the four provided lifting shackles attached to the lugs of the C-Head and Trolley to the transportation pallet (pallet PN 51550) lugs.
51886 Control System Elements The T-WREX controls are face mounted on a remotely located console. Each lever/button introduces compressed air into different sections of the pneumatic control system. A misrouted air line can cause the tool to operate in a manner not intended by the operator. There are air operated elements in the control system that will route, close off, or vent air signals to pilot the hydraulic valves.
51200/51700 General Arrangement 72
51507 Control Console EMERGENCY STOP (detented): De-energize pneumatic control system MAKE/BREAK MODE (selector): Toggle tool operation Operator must properly align the two working wrenches to box/pin shoulder line with the HEIGHT control lever.
Setup Wrenches To set wrenches: Scale on wrench refers to target O.D. Scale is read looking straight down, reading graduation just outside the nut. Check die retaining plate pointers after griping for correct indication, extend/final adjust/retract/tilt as neccessary.
Setup Wrenches Once lined up, hit the grip button and take a reading A good bite, pointer on die holder retainer plate lines up with bolt head Under-bite condition, un-grip, check wrench nuts, rotate nut out for more bite OR if heel side is NOT lined up to pipe center use FINAL ADJUST button (momentary) Over-bite condition, un-grip, check wrench nuts, rotate nut in for less bite OR if heel side is not lined up to pipe center use RETRACT LEVER, then FINAL ADJUST button (momentary) 75
51200/51700 Setup Limits Extend Limits Two adjustable extend limits disable EXTEND function when one is triggered. These are set to well and mouse hole centers. Pressing the FINAL ADJUST button while extending will bypass these limits. Rotate Limits Two adjustable rotation limits disable ROTATE function when one is triggered. These are set to well and mouse hole centers. Pressing the ROTATE button while rotating will bypass these limits.
950TWA Spinner Adjust WRENCHES MUST BE SET PRIOR TO SPIN OPERATION To adjust spinner: 1.) Retract unit off target. 2.) Place SPINNER ADJUST to UNCLAMP 3.) Extend unit until target is nested into spinner. a.) Place SPINNER ADJUST to ADJUST b.) Place SPINNER ADJUST to CLAMP SPINNER IS NOW SET 4.
Operating Modes T-WREX utilizes a three wrench system for making up and breaking out threaded tubulars. Only two of the three wrenches will operate in either make or break mode. Make: This mode sets the tool to make up new connections. In this mode, the bottom wrench backs up the middle torquing wrench. Enabling the grip button (detented) in this mode will grip bottom as back-up wrench. Pushing the torque button (momentary) will sequence middle wrench grip and torque operation.
Control Sequence Basic Operation: 1. Set wrenches (pages 75-76) 2. Set spinner (page 78) 3. Set a rotate and an extend limit (page 77) 4. Height adjust for make or break (refer to previous page) 5. Hit GRIP 6. For Make: hit SPIN until shouldered, release hit TORQUE until torqued, release UN-GRIP For Break: hit TORQUE until joint is broken, release hit SPIN until done, release UN-GRIP 7.
Routine Maintenance Maintain: Wrenches: Grease wrench nut threads Check dies for wear, replace if slipping Spinner: Check chain for wear Hit OILER button for 3-5 seconds every third or fourth spin Grease: Zerk fittings in and around: Spinner Wrench head Main rotation bearing assembly (PN 51220) Check: Hydraulic oil level in power unit (PN 51640) Air filter indicator, replace filter if indicator is red Hydrualic oil filter indicator, replace filter if indicator is red Equipment must be maintained on
MAINTENANCE SCHEDULES 81
