6 CONTENTS______________________ Hydraulics Continued Gripper Hydraulics .......................................... 314 Hydraulic Cylinder - (2x1) ................................. 320 Hydraulic Cylinder - (2x1.25x24) ........................ 322 Hydraulic Cylinder - (3x1.75) ............................. 324 Hydraulic Cylinder - (4x2) ................................. 326 Hydraulic Cylinder - (4x2x10) ............................ 328 Hydraulic Diagram .......................................... 210 Hydraulic Reservoir ........................................ 220 Hydraulic Schematic ....................................... 206 Inner Rotation Control Kit ...............................
266 Inner Rotation Hydraulics ............................... 264 Inner Spindle Rotation Gauge - (AT) ............... 232 Inner/Outer Spindle Drive Case ..................... 236 Load Sense Hydraulics - Begins ...................... 258 Load Sense Hydraulics - Ends ......................... 254 Load Sense Rear Hydraulics .......................... 262 Main Frame Bulkhead .................................... 224 Mud Check Supply Hydraulics........................ 250 Mud Motor Hydraulics .................................... 272 Oil Cooler Hydraulics ...................................... 214 Oil Return Hydraulics .....................................
218 Outer Rotation Hydraulics .............................. 234 Outer Spindle Drive Case Drain ..................... 238 Pipe Lifter Hydraulics - (JT4020AT) ................... 312 Pipe Loader Supply & Return ......................... 308 Pipe Shuttle Hydraulics .................................. 310 Remote Filter .................................................. 240 Rotation - Thrust/Mud Gauges ....................... 222 Rotation Gauge Valve - (JT4020AT) .................. 228 Rotation Hydraulics ........................................ 226 Rotation Test Ports - (JT4020M1) ...................... 230 Seat Rotation Hydraulics ................................
318 Shuttle Stop Hydraulics .................................. 304 Spindle Brake ................................................. 244 Stabilizer Hydraulics ....................................... 302 Thrust Drive Hydraulics .................................. 300 Thrust Hydraulics ........................................... 268 Thrust/Track Drive Pump Hydraulics ............. 252 Track Brake .................................................... 248 Track Case Drain Hydraulics ......................... 276 Track Drive Hydraulics ................................... 274 Track Shift ......................................................
246 Wrench Hydraulics ......................................... 278 Wrench Hydraulics - Front ............................... 280 Wrench Hydraulics - Rear ................................ 282 Wrench Hydraulics - Rotate ............................. 284 Electrical Alarm/Strobe Light .......................................... 392 Battery ............................................................ 384 Dither Assist Harness ..................................... 376 Electrical Diagram - Drill Frame Harness ............. 368 Electrical Diagram - Engine .............................. 342 Electrical Diagram - Gauge (AT/JT) ....................
348 Electrical Diagram - Main Frame ....................... 364 Electrical Diagram - Operator Station ................. 354 Electrical Diagram - Pullback Stop Harness ......... 374 Electrical Diagram - Relay (AT/JT) ..................... 346 Electrical Diagram - Rotation Harness ................ 378 Electrical Diagram - Switch Jumper (JT4020AT) ... 352 Electrical Diagram - Water Temp Gauge -Ends .... 350 Electrical Diagram - Work Light ......................... 366 Electrical Schematic (JT4020AT) ...................... 332 Electrical Strike System ................................. 380 Engine Ground ...............................................
390 Left Console Relay Panel ............................... 388 Load Sense Valve Harness ........................... 394 Relay Panel (JT4020AT) .................................... 386 Right Console................................................. 382 Accessories Cold Start ....................................................... 398 Drilling Fluid Transfer ..................................... 400 Grounding Hardware (ESS) ............................. 408 Heated Hose Kit ............................................. 404 Mud Mixing Accessories ................................ 402 Tool Box .........................................................
412 Vandal Covers................................................ 410 Working Light ................................................. 406 Miscellaneous Bolt/Nut Torque Chart .................................... 416 Filters ............................................................. 420 Optional Kits ................................................... 420 Parts Manual Change Request ...................... 421 Related Publications ...................................... 420 Replacement O-Ring Chart ............................ 419 Warranty Registration .................................... 424 ID0135178