Stop Lever [Tool Retainer]; Movement Of The Stop Lever - Hitachi H 70SA Technical Data And Service Manual

8-3. Stop Lever [Tool Retainer]

To attach and detach the tool (bull point, etc.),
as shown in Fig. 5, pull the stop lever in the
direction of arrow, and turn it 180˚. Then, fully
insert the tool into the hexagonal hole of the
front cover.

8-4. Movement of the Stop Lever

After an extended period of use, the operation of the stop lever may become difficult due to incursion of concrete
powder or similar materials into its sliding portion. In such a case, apply oil into the sliding portion between the
stop lever and fitting portion of the front cover.
Hold the tool with its
flattened part directed
upward.
Tool shank
--- 12 ---
Front cover
2
3
1
Stop lever
Fig. 5