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10. MAINTENANCE
1) Check the tripod for loose fit and loose screws.
2) Wipe off moisture completely if the instrument
gets wet during survey work.
3) Always clean the instrument before returning it
to the case. The lens requires special care.
Dust it off with a clean cloth first to remove tiny
particles. Then, after providing a little condensa-
tion by breathing on the lens, wipe it with a soft
clean cloth or lens tissue,
4) If any trouble is found on the rotatable portion,
screws or optical parts (e.g. lens), contact our
agent.
5)
Check the instrument for proper adjustment
periodically to maintain the instrument accu-
racy.
Summary of Contents for C300
Page 1: ...SURVEYING INSTRUMENTS C300 C310 C320 C330 自動レベル Automatic Level 取扱説明書 OPERATOR S MANUAL ...
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Page 56: ...第 4 版 05 0806 4th ed 05 0806 Printed in China 2004 SOKKIA TOPCON CO LTD ...