e-survey ET2A, Руководство по обслуживанию

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SHANGHAI ESURVEY GNSS CO., LTD.
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3. Remove three cross recessed pan head screws (M3.5X7.5) that fix the vertical circle,
and remove the vertical circle:
3.4 Disassemble the Right Cover
To disassemble the right cover, do the following:
1. Remove four 90° countersunk flat head screws M2.5X7 that fix the right cover:
2. Remove the right cover.