D60x90 Navigator HDD Operation 50-19
ROD WIPER - INSTALL
Use rod wiper (1) to clean drill rod when drilling. Install rod wiper into rod wiper
holder (2).
ENTRANCE AND EXIT SITES - PREPARE
If needed, dig entry and exit pits at the correct location and depth to correctly complete the bore.
WARNING: Do not work in trench with unstable sides which could cave in.
Specific requirements for shoring or sloping trench walls are available from
several sources, including federal and state O.S.H.A. offices. Be sure to contact
suitable authorities for these requirements before working in the trench.