Hi-Target HTS-420R Manuale utente
HTS-420R Maintenance Manual
HTS-420R Total Station
User Service Manual
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HTS-420R Maintenance Manual
Manual Revision
HTS-420R Total Station
Revision Date
Revision No.
Description
Mar. 2019
1
HTS-420R Total Station Service Manual
HTS-420R Maintenance Manual
HTS-420R
Total Station
HTS-420R Maintenance Manual
Contents
Disassembly of Main Parts ............................................................................................................................. 1
Handle Unit ............................................................................................................................................ 2
Display Unit (Face 2)............................................................................................................................... 2
EDM board ............................................................................................................................................. 2
Mainboard ............................................................................................................................................. 4
Electric Brush ......................................................................................................................................... 4
EDM Module .......................................................................................................................................... 5
Long Vial ................................................................................................................................................ 5
Horizontal Tangent Screw Unit ............................................................................................................... 6
Vertical Tangent Screw Unit.................................................................................................................... 6
Eyepiece ................................................................................................................................................. 7
Common maintenance items ......................................................................................................................... 8
List of Common Maintenance Items....................................................................................................... 9
Maintenance Operations........................................................................................................................ 9
1. Long vial calibration.................................................................................................................... 9
2. Circular vial alignment.............................................................................................................. 10
3. Telescope reticle alignment ...................................................................................................... 10
4. Collimation Error Calibration (2C Calibration) .......................................................................... 11
5. Index Error Calibration (2I Calibration)..................................................................................... 12
6. Compensator zero position alignment ..................................................................................... 13
7. Compensator linearity calibration (calibration by software) .................................................... 13
8. Laser plummet alignment......................................................................................................... 14
9. EDM laser beam alignment ...................................................................................................... 15
10. EDM Laser Replacement......................................................................................................... 16
11. Filter Motor Replacement ...................................................................................................... 16
12. Prism/No Prism Switch Motor Replacement .......................................................................... 17
HTS-420R Maintenance Manual
13. Light Path Switch Motor Replacement ................................................................................... 17
Troubleshooting ........................................................................................................................................... 18
Fault Analysis........................................................................................................................................ 19
Fault Clearance..................................................................................................................................... 20
1. Fail to turn on ........................................................................................................................... 20
2. Automatic shutdown after turning on ...................................................................................... 21
3. Program crash .......................................................................................................................... 21
4. Tilt over even when the instrument is level ............................................................................. 21
5. Blank screen, black screen or buttons don’t work .................................................................... 21
6. Fail to communicate with PC .................................................................................................... 21
7. Don’t measure distance at all ................................................................................................... 21
8. Only measure short distance .................................................................................................... 21
9. Inaccurate slope distance result ............................................................................................... 22
10. Accurate slope distance result but inaccurate horizontal distance result ............................... 22
HTS-420R Maintenance Manual
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Chapter 1
Disassembly of Main Parts
This Section Describes
- Handle unit
- Display unit (face 2)
- EDM board
- Mainboard
- Electric brush
- EDM module
- Long level vial
- Horizontal tangent screw unit
- Vertical tangent screw unit
- Eyepiece
HTS-420R Maintenance Manual
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Handle Unit
1. Unscrew the two bolts with hand then take out the handle unit.
Display Unit (Face 2)
1. Unscrew the 4 screws then open the screen unit and turn it over.
2. Take off both compensator cables and LCD flat cable then take the display unit out.
EDM board
1. Unscrew the 4 screws and remove the top telescope cover. Refer to figure 2-4.
2. Take off all the cables and the 3 screws on the board. Refer to figure 2-5.
3. Turn over the EDM board then unscrew the fixing screw of the optical fiber cable and take the cable out.
Refer to figure 2-6.
Compensator cables
LCD cable
Figure 2-2 display screws
Figure 2-3 display cables
HTS-420R Maintenance Manual
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Figure 2-6 optical fiber cable
EDM board
Figure 2-4 telescope cover screws
Figure 2-5 EDM board,cables and screws
HTS-420R Maintenance Manual
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Mainboard
1. Unscrew the 6 screws on the right cover and take the cover out.
2. Take off all the cables and unscrew the 4 screws then take the mainboard out.
Electric Brush
Figure 2-9 Mainboard Figure 2-10 electric brush and fixing screws
Mainboard
Figure 2-7 right cover screws
Figure 2-8 main board , cables and screws
HTS-420R Maintenance Manual
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1. After taking out the mainboard, remove the 3 fixing screws.
2. Take off the connector from the EDM board side then pull the Electric brush out from the mainboard
side.
EDM Module
Figure 2-11 telescope cover screws Figure 2-12 EDM module and fixing screws
1. Unscrew the 4 cover screws to take the cover out.
2. Take off all the cables on the EMD board then use the Hex screw driver (3.0mm) to unscrew the 3 fixing
screws on the EDM module board and take the whole module unit out.
Long Vial
Figure 2-13 long vial and screws
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