Abtus ABT4060 Instruction Manual Download Page 7

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Set fulfils function of both J3 and Mk7 type sighting boards

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Measures void 0-24mm in 0.25mm increments

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Measures void 25-160mm in 5mm increments

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Asymmetric design allows for use on tighter curves with smaller boards

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Translucent target enables clear sighting in all conditions and may be back lit

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Fully non-conductive construction using GRP and Nylon 6

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Factory calibrated for guaranteed accuracy

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Convenient 750mm sighting height

Summary of Contents for ABT4060

Page 1: ...ABT4060 Sighting Board Set Instruction Manual...

Page 2: ...parts 4 4 2 The Sighting Board 4 4 3 The Intermediate Board 4 4 4 The Target Board 5 5 0 Procedure 5 6 0 Accessories 6 7 0 Maintenance 6 2 0 Technical Specification Weight 13kg set Size stacked 1585m...

Page 3: ...Figure 1 ABT4060 Sighting Board Set...

Page 4: ...ylight conditions with the option of fitting in a backlight for use at night or in tunnels 4 2 The Sighting Board The sighting board cross head is provided with a slit through which the Intermediate a...

Page 5: ...enings are tight and that baseplate or chair seating s are hard up to the rail Bull head rails should be properly locked up Sleepers that are end or centre bound and faulty top in excess of 19mm 3 4 m...

Page 6: ...ghting board slit so that at the top edge of the intermediate board lines up horizontally with the sighting line on the target board head The adjustment i e the scale reading of the intermediate board...

Page 7: ...oid 25 160mm in 5mm increments Asymmetric design allows for use on tighter curves with smaller boards Translucent target enables clear sighting in all conditions and may be back lit Fully non conducti...