Tri Tool 620SB Clamshell Hydraulic - Manual (Page 21)

21
Model 620SB Low Profile Clamshell, Hyd.
92-0282 : Rev. 131230
NOTE:
CAUTION:
NOTE:
Select and install the desired Tool Bit Set.
Refer to ‘Tool Bit Set up’ later in this section for selection and set-up instructions.
Turn the Hydraulic Motors on to full speed by opening the Flow Control Valve.
The Hydraulic Motor working speed will be about one half of the no-load
speed. Refer to ‘Cutting Speeds’ later in the booklet, for speed selection
chart.
Engage the feed by pushing the Tripper Shaft in.
Monitor the cutting operation.
Apply cutting fluid as necessary.
If chips build up so much that they tangle in the Clamshell, disengage the feed for
2-3 revolutions to clear the chip.
Then stop the Clamshell and remove the chips.
Refer to ‘Severing’ later in this section for specific machining procedures.
In-line pipe stores energy.
When the pipe is severed, the pipe may move.
To prevent accidents due to the spring in the pipe system, be sure to secure the pipe
on both sides of the sever line in order to prevent differential movement of the pipe
ends.
When the machining operation is finished, disengage the Feed Pin by pulling the
Tripper Shaft to the ‘out’ position.
Allow the Headstock to continue for 3 revolutions to complete the cutting operation.
Turn off the Hydraulic Motors by closing the Flow Control Valve.
Retract the Tool Holders so that the Tool Bit(s) clear the pipe OD.
The Tool Holders are retracted by rotating the Feed Sprocket clockwise using
the special Spanner Wrench supplied with the Clamshell.
Run the Hydraulic Motors until the split-lines of the Headstock and the Housing
match.