9. Maintenance
1）Checking the tripod before using.
2）If the level has been moistened by rain, please use soft cloth to erase dust
firstly and then use soft cloth or lens paper to wipe off moisture (you could
exhale towards to lens firstly then wiping).
3）Please clean the instrument and put the cap well before packing the
instrument after work.
4）If any problems happened on the rotatable portion, screws, or any water,
mildew be found on the lens parts, please contact our service center or agent.
5）In order to keep high precise, it would be best to check and collimate the
instrument one to two times each year.
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