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EOS MM-12920-1, Maintenance And Installation Manual

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EOS Technologies, Inc. • 3160 East Transcon Way, Suite 180 • Tucson AZ 85706 • USA 

Tel: +1 520 624 6399 • Fax: +1 520 624 1906 • Web: www.eostech.com 

 

 

 

 

 

 

 

 

 

 

Lick Automated Planet Finder 

2.4 Meter Alt-Azimuth Telescope 

 

 

 

Maintenance and Installation Manual 

MM-12920-1 

 

 

 

 

 

 

 

 

 

This document and enclosed information is the property of EOS Technologies, Inc. The information 
contained herein is confidential and cannot be used for commercial or any other purposes. This document 
may not be copied nor disclosed without prior written approval of EOS Technologies, Inc. 

Controlled Document 

Confirm revision before using 

Summary of Contents for MM-12920-1

Page 1: ...scope Maintenance and Installation Manual MM 12920 1 This document and enclosed information is the property of EOS Technologies Inc The information contained herein is confidential and cannot be used...

Page 2: ...ument and enclosed information remains the property of EOS Technologies Inc Information herein may not be copied nor disclosed without written consent of EOS Management Issue 1 Prepared D Shelby Stubb...

Page 3: ...2 Lifting Points 11 1 7 3 3 Axis Locks 11 1 7 3 4 Self Sealing Fittings 12 1 7 3 5 Over current Protection Devices 12 1 7 3 6 Connector Uniqueness and Pin Arrangement 12 1 7 3 7 Interface to Observat...

Page 4: ...REMENTS 16 1 10 2 DC POWER SUPPLIES 16 1 10 3 MOTORS 16 1 10 4 EMERGENCY STOP BUTTON CONNECTIONS 16 1 11 MAINTENANCE CONCEPT 16 CHAPTER 2 PREVENTIVE MAINTENANCE 18 2 1 PREVENTATIVE MAINTENANCE TASKS 1...

Page 5: ...PTICS 25 2 8 1 PURPOSE 25 2 8 2 EQUIPMENT AND TOOLS REQUIRED 25 2 8 3 CLEANING THE PRIMARY MIRROR 26 2 8 3 1 Recommended Frequency 26 2 8 3 2 Procedure 26 2 8 4 CLEANING THE SECONDARY MIRROR M2 26 2 8...

Page 6: ...RY MIRROR ASSEMBLY 34 3 3 REMOVING THE TERTIARY MIRROR M3 FOR RECOATING 35 3 3 1 PURPOSE 35 3 3 2 RECOMMENDED FREQUENCY 35 3 3 3 EQUIPMENT AND TOOLS REQUIRED 35 3 3 4 TIME REQUIRED 35 3 3 5 PROCEDURE...

Page 7: ...my Weight Installed on M2 Focus Stage 31 Figure 3 M2 Assembly with Baffle Holder 32 Figure 4 M2 Assembly with Baffle Holder Removed 33 Figure 5 M3 Assembly with Baffle Installed 36 Figure 6 M3 Assembl...

Page 8: ...ime therefore all personnel in the observatory must be alert at all times EOST and its related entities take no responsibility and shall not be liable for any injury loss or damage including death whi...

Page 9: ...ginal Equipment Manufacturer OSS Optical Support Structure OTA Optical Truss Tube Assembly 1 6 CONVENTIONS The following conventions are used in this document to alert the reader Notes Caution CAUTION...

Page 10: ...locks are employed to minimize the possibility of injury to individuals or damage to equipment In locations where interlocks are impossible or expected to be ineffective warnings and procedures will b...

Page 11: ...ables from contact with sharp objects Do not kink cables and never allow the cables to come in contact with oil grease hot surfaces or chemicals After maintenance or installation carefully inspect the...

Page 12: ...ible the telescope has been designed to fail in a safe manner when a fault occurs 1 7 4 IDENTIFIED HAZARDS The following hazards were identified during the conceptual design process 1 7 4 1 Weight and...

Page 13: ...ring scheduled maintenance 1 7 5 SAFETY PRECAUTIONS WHILE IN THE TELESCOPE ENCLOSURE Follow all safety rules when in the enclosure and be alert Keep a safe distance from the telescope or enclosure dom...

Page 14: ...Engaged If an Emergency Stop button is engaged do not disengage it before determining the reason for the button being engaged Someone may be working on the telescope and dome or may have discovered a...

Page 15: ...s 1 8 1 LOCAL ON SITE MODE In local on site mode the user is specifically using the on site control computer and the observatory is controlled in real time via appropriate hardware and software user i...

Page 16: ...IREMENTS The system power requirements are 120 VAC and 28 VAC RMS 2 phase A backup generator that works with the uninterrupted power supply UPS is being provided by the customer 1 10 2 DC POWER SUPPLI...

Page 17: ...ance throughout its design lifetime These tasks must be performed at the specified time regardless of whether symptoms are exhibited by the telescope CAUTION Failure to perform preventive maintenance...

Page 18: ...cope Control Cabinet Indicator Lamps Cooling Fans DC Power supply voltage check section 2 3 15 minutes 5 minutes 5 minutes Weekly Monthly or more often as needed Monthly Emergency Stop Buttons section...

Page 19: ...markers where possible to identify critical structural fasteners of the assembly enabling service technicians to be able to clearly see fasteners which may become loose over time Tamper proof markers...

Page 20: ...re routine inspection and cleaning Although a monthly inspection and cleaning of fans is recommended environmental conditions may require more frequent cleaning of the fans and filter See Table 2 Tabl...

Page 21: ...ch computer perform a visual inspection of the cooling fans monthly With the computer running perform an audio inspection by listening to the sound of the fan 15 If the fan motor sounds as though it i...

Page 22: ...ned to accrue contaminants on the surface A maximum of four encoder assemblies can be used on the azimuth axis of this telescope 2 5 1 REQUIRED TOOLS AND EQUIPMENT Acetone Optical wipes 2 5 2 TIME REQ...

Page 23: ...access covers 9 Record preventive maintenance completed in the log book 2 6 LUBRICATING THE AZIMUTH AND ELEVATION DRIVE BEARINGS The drive system for the telescope consists of three roller type bearin...

Page 24: ...g spaced 90 apart 1 Load the Kluberplex BEM 34 132 grease into the grease gun 2 Access the elevation bearings from either side of the fork NOTE Locating the grease fittings may require the assistance...

Page 25: ...ook 2 8 CLEANING OPTICS 2 8 1 PURPOSE Dust on the M1 M2 and M3 mirrors will reduce reflectivity and degrade telescope performance The mirrors must be cleaned by qualified personnel on a regular basis...

Page 26: ...to be performed safely 2 8 3 2 Procedure 1 Either manually or via software control move the telescope to its horizon pointing position and lock it in place using the Elevation stay pin on the Optical...

Page 27: ...1 Purpose Dust will collect on the tertiary mirror Clean the tertiary mirror whenever the primary and secondary mirrors are cleaned EOST recommends using a CO2 snow cleaning system to clean all optica...

Page 28: ...recoating is necessary Balancing the Telescope section 3 4 20 30 minutes As required Optical Alignment section 3 5 12 hours As required After mirror recoating and reinstallation of mirrors 3 1 RECOATI...

Page 29: ...EQUIPMENT AND TOOLS REQUIRED Drawing ASY 5279 Upper Truss Assembly Drawing ASY 5201 M2 QS Focus Assembly M2 shipping container Metric Allen wrenches Powder free latex gloves Dust face mask 6 foot ladd...

Page 30: ...he orientation of the M2 assembly on the telescope Figure 1 M2 Assembly 6 With one person holding the M2 Baffle Tube COM 13588 in place remove the six M5 SHCS that secure the M2 Baffle Tube to the M2...

Page 31: ...the Focus Stage and place it in the shipping container or in a safe work location WARNING If the M2 assembly has been removed from the telescope and the M2 counterweight assembly has not been installe...

Page 32: ...Applying multiple coats may simplify the removal process 3 Place the M2 Assembly securely on blocks leaving enough room to work under the support 4 Remove the steel wire connected to the three safety...

Page 33: ...g the torque wrench insert and tighten the three M5 SHCS to 22 inch lbs to secure the M2 Mirror to the M2 Attachment Plate 5 While a second person holds half of the M2 Baffle Holder COM 10239 in place...

Page 34: ...aside 3 Wear a dust mask and powder free latex gloves Remove any jewelry and items from pockets that may fall onto the mirror surface 4 Grip the M2 Mirror Assembly by the outside of the M2 Baffle Hol...

Page 35: ...remove and re install the M1 M2 and M3 mirrors Tertiary mirror shipping crate Dust masks Latex gloves powder free Metric Allen wrenches Metric Hex Wrenches Short M6 Hex Wrench 3 3 4 TIME REQUIRED 2 h...

Page 36: ...nd allow it to dry according to the manufacturer recommendations Applying multiple coats may simplify the removal process CAUTION Extreme care is required to prevent contact with the optical surface i...

Page 37: ...3 3 6 PROCEDURE FOR REMOVING THE TERTIARY MIRROR FROM THE SUPPORT 1 Wear a dust mask and powder free latex gloves Remove any jewelry and items from pockets that may fall onto the mirror surface 2 Pla...

Page 38: ...le holding each corresponding M3 Mirror Mount Flexure COM 5695 with an M6 Hex Wrench loosen the three M8 Hex Nuts that secure the Flexures to the M3 Mirror Mount see Figure 7 It may be necessary to us...

Page 39: ...readed ends of the M3 Mirror Mount Flexures Make sure these washers stay in position during the remainder of the assembly process 4 Carefully set the M3 Mirror on the support being careful not to plac...

Page 40: ...tact with the optical surface if a protective coating is not used as even incidental contact can damage the coating and or surface of the mirror 6 Note the current position of the M3 Rotator and lift...

Page 41: ...eased 1 Do not operate the motor Open the mirror covers and move the telescope optical support structure OSS The OSS includes everything that rotates as the elevation motor rotates the telescope to th...

Page 42: ...e telescope OSS should now remain still when placed in any elevation position 11 More accurate balance can be obtained by looking at bi directional motor torque In general the balancing techniques des...

Page 43: ...An optical alignment is required whenever the Primary Secondary or Tertiary mirrors have been removed and reinstalled 3 5 3 PROCEDURE Refer to ASP 13964 Lick APF Optical Alignment Procedure 3 6 STAR...

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