E.H. Wachs 08-051-MAN User Manual - page 9
Chapter 1, About the Subsea Wire Saw: Equipment Description
E.H. Wachs
Part No. 08-051-MAN, Rev. 1-0709
5
The drive wheel is operated by the hydraulic drive motor to
turn the wire around the cutting system loop. It is mounted
on a pivoting fixture used to adjust the tension of the wire.
The tension is set using a knob on the fixture, which also
positions the wheel for installing and removing the cutting
wire.
The tension wheel is on a pivoting, spring-loaded fixture
that maintains wire tension. The other two idler wheels are
fixed at the bottom of the bow where the cutting wire
engages the pipe.
The wire is a custom-made loop for the size of the saw.
Spare wires can be ordered from E.H. Wachs.
Feed System
A feed drive mechanism on the main frame of the machine
drives the bow and cutting system up and down to perform
the cut and retract the bow after cutting. The bow rides on
three feed rails and is driven by a feed screw in the center of
the frame. Figure 1-2 and Figure 1-3 show the main feed
system components.
Figure 1-2. The saw bow moves on three feed rails on
the frame. The feed screw along the center rail drives
the bow.
Feed rails
Saw bow
Feed screw