M137 TELESCOPE MOUNTCHAPTER 1. INTRODUCTION - TM-9-1240-400-34-P0009OFFICIAL NOMENCLATURE, NAMES, AND DESIGNATIONSSection II. EQUIPMENT DESCRIPTION AND DATALOCATION AND DESCRIPTION OF MAJOR COMPONENTS. - TM-9-1240-400-34-P0012M138 Telescope Mount.M137 Telescope Mount.M139 Elbow Telescope.EQUIPMENT DATA.CHAPTER 2. M115 PANORAMIC TELESCOPECATEGORIES OF INSPECTION - TM-9-1240-400-34-P0018Table 2-1. INITIAL INSPECTION-M115 PANORAMIC TELESCOPETable 2-1. INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT) - TM-9-1240-400-34-P0020Table 2-1. INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT) - TM-9-1240-400-34-P0021Table 2-1. INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT) - TM-9-1240-400-34-P0022Table 2-1. INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT) - TM-9-1240-400-34-P0023Table 2-1. INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT) - TM-9-1240-400-34-P0024Section III. TROUBLESHOOTING - TM-9-1240-400-34-P0025Table 2-2. DIRECT SUPPORT TROUBLESHOOTINGGENERAL SUPPORT SYMPTOM INDEX - TM-9-1240-400-34-P0027Section IV. DIRECT SUPPORT MAINTENANCE - TM-9-1240-400-34-P0028DISASSEMBLY - TM-9-1240-400-34-P0029REASSEMBLY - TM-9-1240-400-34-P0030MAINTENANCE OF BODY ASSEMBLY.REASSEMBLY - TM-9-1240-400-34-P0032MAINTENANCE OF ADAPTER ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0034Section V. GENERAL SUPPORT MAINTENANCEMAINTENANCE OF M115 PANORAMIC TEREASSEMBLY - TM-9-1240-400-34-P0037MAINTENANCE OF HEAD ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0039DISASSEMBLY (CONT) - TM-9-1240-400-34-P0040REASSEMBLY - TM-9-1240-400-34-P0041REASSEMBLY (CONT) - TM-9-1240-400-34-P0042REASSEMBLY (CONT) - TM-9-1240-400-34-P0043MAINTENANCE OF BODY ASSEMBLY, SUBASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0045DISASSEMBLY (CONT) - TM-9-1240-400-34-P0046DISASSEMBLY (CONT) - TM-9-1240-400-34-P0047DISASSEMBLY (CONT) - TM-9-1240-400-34-P0048REPAIR - TM-9-1240-400-34-P0049REASSEMBLY (CONT) - TM-9-1240-400-34-P0050REASSEMBLY (CONT) - TM-9-1240-400-34-P0051REASSEMBLY (CONT) - TM-9-1240-400-34-P0052REASSEMBLY (CONT) - TM-9-1240-400-34-P0053REASSEMBLY (CONT) - TM-9-1240-400-34-P0054MAINTENANCE OF OPTICAL INSTRUMENT WORM ASSEMBLY, OPTICAL INSTRUMENT COLLECTIVE CELL ASSEMBLY, OPTICAL INSTRUMENT OBJECTIVE CELL ASSEMBLY, AND RETICLE ASSEMBLY.REMOVAL/DISASSEMBLY - TM-9-1240-400-34-P0056REASSEMBLY/INSTALLATION - TM-9-1240-400-34-P0057MAINTENANCE OF ADAPTER ASSEMBLY AND COUNTER ASSEMBLY.REMOVAL/DISASSEMBLY - TM-9-1240-400-34-P0059REMOVAL/DISASSEMBLY (cont) - TM-9-1240-400-34-P0060REMOVAL/DISASSEMBLY (cont) - TM-9-1240-400-34-P0061REASSEMBLY/INSTALLATION - TM-9-1240-400-34-P0062REASSEMBLY/INSTALLATION (cont) - TM-9-1240-400-34-P0063REASSEMBLY/INSTALLATION (cont) - TM-9-1240-400-34-P0064REASSEMBLY/INSTALLATION (cont) - TM-9-1240-400-34-P0065MAINTENANCE OF ELBOW ASSEMBLY, AND OPTICAL INSTRUMENT CELL ASSEMBLY.REMOVAL/DISASSEMBLY - TM-9-1240-400-34-P0067REMOVAL/DISASSEMBLY (CONT) - TM-9-1240-400-34-P0068REASSEMBLY/INSTALLATION - TM-9-1240-400-34-P0069REASSEMBLY/INSTALLATION (CONT) - TM-9-1240-400-34-P0070REASSEMBLY/INSTALLATION (CONT) - TM-9-1240-400-34-P0071REASSEMBLY/INSTALLATION (CONT) - TM-9-1240-400-34-P0072Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES - TM-9-1240-400-34-P0073M115 PANORAMIC TELESCOPE FINAL INSPECTION INSTRUCTIONSSETTING UP AZIMUTH TESTING FIXTURESETTING UP AZIMUTH TESTING FIXTURE (CONT) - TM-9-1240-400-34-P0076SETTING UP AZIMUTH TESTING FIXTURE (CONT) - TM-9-1240-400-34-P0077SETTING UP AZIMUTH TESTING FIXTURE (CONT) - TM-9-1240-400-34-P0078VISUAL INSPECTION - TM-9-1240-400-34-P0079PARALLAX ADJUSTMENT - TM-9-1240-400-34-P0080IMAGE TILT ADJUSTMENTPARALLELISM OF RETICLE AND IMAGEPARALLELISM OF RETICLE AND IMAGE (cont) - TM-9-1240-400-34-P0083PARALLELISM OF RETICLE AND IMAGE (cont) - TM-9-1240-400-34-P0084COLLIMATIONPLUMB TRAVEL AND LINE OF SIGHT TRAVELELEVATION MECHANISM BACKLASHDEFLECTION ERRORS (800 MIL STEPS) AND BACKLASH (DEFLECTION MECHANISM) INSPECTIONSDEFLECTION ERRORS (800 MIL STEPS) AND BACKLASH (DEFLECTION MECHANISM) INSPECTIONS (cont) - TM-9-1240-400-34-P0089DEFLECTION ERRORS (800 MIL STEPS) AND BACKLASH (DEFLECTION MECHANISM) INSPECTIONS (cont) - TM-9-1240-400-34-P0090LEVEL TRAVEL AND LIFT INSPECTIONLEVEL TRAVEL AND LIFT INSPECTION (cont)COUNTER OPERATION AND ADJUSTMENTTORQUE INSPECTIONILLUMINATION INSPECTION - TM-9-1240-400-34-P0095Section VII. PREEMBARKATION INSPECTION PROCEDURES - TM-9-1240-400-34-P0096Chapter 3. M139 ELBOW TELESCOPECATEGORIES OF INSPECTION - TM-9-1240-400-34-P0098Section III. TROUBLESHOOTING - TM-9-1240-400-34-P0099Table 3-2. GENERAL SUPPORT TROUBLESHOOTINGTable 3-2. GENERAL SUPPORT TROUBLESHOOTING (cont) - TM-9-1240-400-34-P0101Table 3-2. GENERAL SUPPORT TROUBLESHOOTING (cont) - TM-9-1240-400-34-P0102Section V. GENERAL SUPPORT MAINTENANCE PROCEDURES - TM-9-1240-400-34-P0103MAINTENANCE OF M139 ELBOW TELESCOPE.DISASSEMBLY - TM-9-1240-400-34-P0105REPAIR - TM-9-1240-400-34-P0106REASSEMBLY - TM-9-1240-400-34-P0107MAINTENANCE OF EYEPIECE ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0109REASSEMBLY - TM-9-1240-400-34-P0110MAINTENANCE OF RETICLE CELL ASSEMBLY.MAINTENANCE OF OBJECTIVE CELL ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0113Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES - TM-9-1240-400-34-P0114VISUAL INSPECTION - TM-9-1240-400-34-P0115FINAL INSPECTION INSTRUCTIONSSETTING UP AND ADJUSTING TELESCOPE TEST FIXTURESETTING UP AND ADJUSTING TELESCOPE TEST FIXTURE (CONT)MOUNTING M139 ELBOW TELESCOPE ON TELESCOPE TEST FIXTUREPARALLAX INSPECTION AND ADJUSTMENTRETICLE PLUMB/COLLIMATION INSPECTION AND ADJUSTMENTRETICLE PLUMB/COLLIMATION INSPECTION AND ADJUSTMENT (CONT) - TM-9-1240-400-34-P0122RETICLE PLUMB/COLLIMATION INSPECTION AND ADJUSTMENT (CONT) - TM-9-1240-400-34-P0123ILLUMINATION INSPECTION - TM-9-1240-400-34-P0124Section VII. PREEMBARKATION INSPECTION PROCEDURES - TM-9-1240-400-34-P0125Chapter 4. M138 TELESCOPE MOUNTTable 4-1. INITIAL INSPECTION-M138 TELESCOPE MOUNTSection III. TROUBLESHOOTING - TM-9-1240-400-34-P0128Table 4-2. DIRECT SUPPORT TROUBLESHOOTINGTable 4-2. DIRECT SUPPORT TROUBLESHOOTING (cont)Section IV. DIRECT SUPPORT MAINTENANCE - TM-9-1240-400-34-P0131MAINTENANCE OF M138 TELESCOPE MOUNTDISASSEMBLY - TM-9-1240-400-34-P0133REASSEMBLY - TM-9-1240-400-34-P0134REASSEMBLY (CONT) - TM-9-1240-400-34-P0135MAINTENANCE OF SUPPORT ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0137MAINTENANCE OF BRACKET ASSEMBLY AND INSTRUMENT LIGHT.DISASSEMBLY - TM-9-1240-400-34-P0139DISASSEMBLY (cont) - TM-9-1240-400-34-P0140DISASSEMBLY (cont) - TM-9-1240-400-34-P0141REASSEMBLY - TM-9-1240-400-34-P0142REASSEMBLY (cont) - TM-9-1240-400-34-P0143REASSEMBLY (cont) - TM-9-1240-400-34-P0144Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES - TM-9-1240-400-34-P0145ASSEMBLY AND ALINEMENT OF V-BLOCK ADAPTER ASSEMBLYASSEMBLY AND ALINEMENT OF V-BLOCK ADAPTER ASSEMBLY (cont)SETTING UP V-BLOCKADAPTER ASSEMBLYSETTING UP V-BLOCK ADAPTER ASSEMBLY (CONT)VISUAL INSPECTION - TM-9-1240-400-34-P0150DEFLECTION LOCKING TORQUEELEVATION LOCKING TORQUETELESCOPE LOCKING CLAMPSection VII. PREEMBARKATION INSPECTION PROCEDURES - TM-9-1240-400-34-P0154Chapter 5. M137 TELESCOPE MOUNTTable 5-1. INITIAL INSPECTION-M137 TELESCOPE MOUNTTable 5-1. INITIAL INSPECTION--M137 TELESCOPE MOUNT (CONT) - TM-9-1240-400-34-P0157Table 5-1. INITIAL INSPECTION--M137 TELESCOPE MOUNT (CONT) - TM-9-1240-400-34-P0158Section III. TROUBLESHOOTING - TM-9-1240-400-34-P0159Table 5-2. DIRECT SUPPORT TROUBLESHOOTINGTable 5-2. DIRECT SUPPORT TROUBLESHOOTING (CONT)Table 5-3. GENERAL SUPPORT TROUBLESHOOTINGTable 5-3. GENERAL SUPPORT TROUBLESHOOTING (CONT)Section IV. DIRECT SUPPORT ,MAINTENANCEMAINTENANCE OF M137 TELESCOPEMAINTENANCE OF UPPER TELESCOPEDISASSEMBLY - TM-9-1240-400-34-P0167DISASSEMBLY (CONT) - TM-9-1240-400-34-P0168REASSEMBLY - TM-9-1240-400-34-P0169REASSEMBLY (CONT) - TM-9-1240-400-34-P0170MAINTENANCE OF EXTENSION LIGHT ASSEMBLYDISASSEMBLY - TM-9-1240-400-34-P0172MAINTENANCE OF COVER ASSEMBLYDISASSEMBLY - TM-9-1240-400-34-P0174REPAIR - TM-9-1240-400-34-P0175REASSEMBLY - TM-9-1240-400-34-P0176REASSEMBLY (CONT) - TM-9-1240-400-34-P0177MAINTENANCE OF LEVEL ASSEMBLYDISASSEMBLY - TM-9-1240-400-34-P0179REASSEMBLY - TM-9-1240-400-34-P0180REASSEMBLY (cont) - TM-9-1240-400-34-P0181MAINTENANCE OF TELESCOPE MOUNT SUBASSEMBLY LOWER ASSEMBLY. - TM-9-1240-400-34-P0182DISASSEMBLY - TM-9-1240-400-34-P0183REASSEMBLY - TM-9-1240-400-34-P0184REASSEMBLY (cont) - TM-9-1240-400-34-P0185MAINTENANCE OF TELESCOPE MOUNTMAINTENANCE OF M137 TELESCOPE MOUNT ASSEMBLY AND BRACKET ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0188REASSEMBLY - TM-9-1240-400-34-P0189MAINTENANCE OF UPPER TELESCOIDISASSEMBLY - TM-9-1240-400-34-P0191MAINTENANCE OF TELESCOPE MOUNT SUBASSEMBLY LOWER ASSEMBLY. - TM-9-1240-400-34-P0192DISASSEMBLY - TM-9-1240-400-34-P0193DISASSEMBLY (cont) - TM-9-1240-400-34-P0194DISASSEMBLY (cont) - TM-9-1240-400-34-P0195REASSEMBLY - TM-9-1240-400-34-P0196REASSEMBLY (cont) - TM-9-1240-400-34-P0197REASSEMBLY (cont) - TM-9-1240-400-34-P0198REASSEMBLY (cont) - TM-9-1240-400-34-P0199MAINTENANCE OF TELESCOPE MOUNT SUBASSEMBLY AND BASE ASSEMBLY.DISASSEMBLY - TM-9-1240-400-34-P0201DISASSEMBLY (cont) - TM-9-1240-400-34-P0202REASSEMBLY - TM-9-1240-400-34-P0203REASSEMBLY (CONT) - TM-9-1240-400-34-P0204REASSEMBLY (CONT) - TM-9-1240-400-34-P0205Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES - TM-9-1240-400-34-P0206SETTING UP AND ADJUSTING CROSS-LEVELING FIXTUREVISUAL INSPECTION - TM-9-1240-400-34-P0208MOUNTING M137 TELESCOPE MOUNT ON CROSS-LEVELING FIXTUREINSPECTING AND ADJUSTING LEVEL BARCHECKING AND ADJUSTING LEVEL VIALSCHECKING AND ADJUSTING CROSS-LEVEL KNOB TORQUE AND BACKLASHCHECKING AND ADJUSTING ELEVATION KNOB TORQUEAND BACKLASHCHECKING AND ADJUSTING ELEVATION KNOB TORQUE AND BACKLASH (CONT) - TM-9-1240-400-34-P0214CHECKING AND ADJUSTING ELEVATION KNOB TORQUE AND BACKLASH (CONT) - TM-9-1240-400-34-P0215CHECKING AND ADJUSTING ELEVATION KNOB TORQUE AND BACKLASH (CONT) - TM-9-1240-400-34-P0216CHECKING AND ADJUSTING COUNTER AND STOP ASSEMBLYCHECKING AND ADJUSTING ELEVATION KNOB TORQUE AND BACKLASH (CONT) - TM-9-1240-400-34-P0218CHECKING AND ADJUSTING CORRECTION COUNTER DIALCHECKING M137 TELESCOPE MOUNT ACCURACYADJUSTMENT OF TOP SURFACECHECKING M137 TELESCOPE MOUNT CANT CORRECTIONCHECKING ILLUMINATION OF M137 TELESCOPE MOUNTSection VII. PREEMBARKATION INSPECTION PROCEDURES - TM-9-1240-400-34-P0224Appendix A. REFERENCES - TM-9-1240-400-34-P0225Appendix B. DIRECT AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LISTEXPLANATION OF COLUMNS (SECTIONS II AND III)Maintenance Code - TM-9-1240-400-34-P0229EXPLANATION OF COLUMNS (SECTIONS II AND III) (cont). - TM-9-1240-400-34-P0230Recoverability Code - TM-9-1240-400-34-P0231EXPLANATION OF COLUMNS (SECTIONS II AND III) (cont). - TM-9-1240-400-34-P0232SPECIAL INFORMATION. - TM-9-1240-400-34-P0233HOW TO LOCATE REPAIR PARTS. - TM-9-1240-400-34-P0234Figure B-1. Telescope, Panoramic, M115 8587340 (Assembled View).Repair Parts List - TM-9-1240-400-34-P0236Figure B-2. Telescope, Panoramic, M115 8587340.Repair Parts List - TM-9-1240-400-34-P0238Figure B-3. Head Assembly 8587416.Repair Parts List - TM-9-1240-400-34-P0240Figure B-4. Body Assembly 8587534, Cover Assembly 10541411, and Telescope Subassembly 10541428- Partial Exploded View (Sheet 1 of 2).Figure B-4. Body Assembly 8587534, Cover Assembly 10541411, and Telescope Subassembly 10541428- Partial Exploded View (Sheet 2 of 2).Repair Parts List - TM-9-1240-400-34-P0243Repair Parts List (cont) - TM-9-1240-400-34-P0244Figure B-5. Worm Assembly, Optical Instrument 8587400, Cell Assembly, Optical Instrument Collective 8587297, Cell Assembly, Optical Instrument Objective 8587296, and Reticle Assembly 8587375 - Exploded View.Repair Parts List - TM-9-1240-400-34-P0246Figure B-6. Adapter Assembly 8587468 and Counter Assembly 8587453.Repair Parts List - TM-9-1240-400-34-P0248Repair Parts List (cont) - TM-9-1240-400-34-P0249Figure B-7. Elbow Assembly 8587402, Eyepiece Assembly 8587408, and Cell Assembly, Optical Instrument 8587540.Repair Parts List - TM-9-1240-400-34-P0251Figure B-8. Telescope, Elbow, M139 10556120 (Assembled View).Repair Parts List - TM-9-1240-400-34-P0253Figure B-9. Telescope, Elbow, M139 10556120.Repair Parts List - TM-9-1240-400-34-P0255Figure B-10. Eyepiece Assembly 6139342.Repair Parts List - TM-9-1240-400-34-P0257Figure B-11. Reticle Cell Assembly 11748290.Repair Parts List - TM-9-1240-400-34-P0259Figure B-12. Cell Assembly, Objective 6139343.Repair Parts List - TM-9-1240-400-34-P0261Figure B-13. Mount, Telescope, M138 8587500 (Assembled View)Repair Parts List - TM-9-1240-400-34-P0263Figure B-14. Mount, Telescope, M138 8587500.Repair Parts List - TM-9-1240-400-34-P0265Figure B-15. Support Assembly 8587515.Repair Parts List - TM-9-1240-400-34-P0267Figure B-16. Bracket Assembly 8587517 and Light, Instrument 8587322.Repair Parts List - TM-9-1240-400-34-P0269Figure B-17. Mount, Telescope, M137 8587295 (Assembled View).Repair Parts List - TM-9-1240-400-34-P0271Figure B-18. Mount, Telescope, M137 8587295 and Bracket Assembly 8261935.Repair Parts List - TM-9-1240-400-34-P0273Repair Parts List (cont) - TM-9-1240-400-34-P0274Figure B-19. Mount Subassembly, Upper Telescope 8582223 and Light, Extension 8587510.Repair Parts List - TM-9-1240-400-34-P0276Figure B-20. Cover Assembly 8261800.Repair Parts List - TM-9-1240-400-34-P0278Figure B-21. Level Assembly 8572243.Repair Parts List - TM-9-1240-400-34-P0280Figure B-22. Mount Subassembly, Telescope, Lower Assembly 8572222Figure B-22. Mount Subassembly, Telescope, Lower Assembly 8572222 (cont)Repair Parts List - TM-9-1240-400-34-P0283Repair Parts List (cont) - TM-9-1240-400-34-P0284Figure B-23. Telescope Mount Subassembly 8261802.Repair Parts List - TM-9-1240-400-34-P0286Repair Parts List (cont) - TM-9-1240-400-34-P0287Figure B-24. Base Assembly 8587537.Repair Parts List - TM-9-1240-400-34-P0289Repair Parts List (cont) - TM-9-1240-400-34-P0290Figure B-25. Special Tools.Repair Parts List - TM-9-1240-400-34-P0292NATIONAL STOCK NUMBER INDEX - TM-9-1240-400-34-P0293NATIONAL STOCK NUMBER INDEX (cont) - TM-9-1240-400-34-P0294NATIONAL STOCK NUMBER INDEX (cont) - TM-9-1240-400-34-P0295NATIONAL STOCK NUMBER INDEX (cont) - TM-9-1240-400-34-P0296NATIONAL STOCK NUMBER INDEX (cont) - TM-9-1240-400-34-P0297NATIONAL STOCK NUMBER INDEX (cont) - TM-9-1240-400-34-P0298PART NUMBER INDEX - TM-9-1240-400-34-P0299PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0300PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0301PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0302PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0303PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0304PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0305PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0306PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0307PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0308PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0309PART NUMBER INDEX (cont) - TM-9-1240-400-34-P0310FIGURE AND ITEM NUMBER INDEXFIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0312FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0313FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0314FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0315FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0316FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0317FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0318FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0319FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0320FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0321FIGURE AND ITEM NUMBER INDEX (cont) - TM-9-1240-400-34-P0322Appendix C. EXPENDABLE AND DURABLE ITEMS LISTSection II. EXPENDABLE AND DURABLE ITEMS LISTSection II. EXPENDABLE AND DURABLE ITEMS LIST (cont)Appendix D. ILLUSTRATED LIST OF MANUFACTURED ITEMSMANUFACTURED ITEMS ILLUSTRATIONSFigure 4. Torque Adapter.Figure 6. Torque Converter.Figure 8. Fabricated Wrench.Figure 10. Reticle Ali7ement Fixture (1 of 2).Figure 10. Reticle Alinement Fixture (2 of 2).Figure 11. V-block Adapter Assembly (1 of 2).Figure 11. V-block Adapter Assembly (2 of 2).TM-9-1240-400-34-P Telescope Panoramic: M115 Telescope Elbow: M139 Mount Telescope: M138 Mount Telescope: M137 Manual