16
2.3.2 Recovering the cutter in case of malfunction
Under certain conditions it may no longer be possible to pull the cutter out of the pipe or to
empty the stroke when the bracing bubble is inflated.
Such malfunctions occur in case of:
- a defective control
- a defect in the electric system of the cutter
- defective way valve/s in the cable reel
- power failure
- air supply failure
In such cases the bracing bubble and the stroke need to be emptied manually.
Unreel the hose package.
Loosen the transparent 4 mm hose between hose package and way valve 1 (WV1) on the T-
piece. Press the blue circlip on the T-piece and pull out the hose.
Loosen the blue 6 mm air hose between hose package and pressure reducer 2 (DM2) to
empty the bracing bubble. Unreel the hose package to do so. Press the black circlip on
pressure reducer 2 (DM2) and pull out the blue 6 mm hose.
To Next Page
Loading...