McHale Orbital Round Bale Wrapper
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The ‘Cut and Hold’ knife blade condition is very important for the proper operation of
the ‘Cut and Hold’ system. A blunt blade may not cut the film cleanly or possibly not at
all. As such, the knives must be changed under part number CKN00011. Ensure all
safety precautions are taken before carrying out the following procedure.
1. Loosen the two M6 setscrews that hold the knife clamp plate (B) in place using
a 10 mm spanner or socket, beware of knife blade! Use temporary protective
cover, as shown.
2. Remove used knife, noting that there is a spare knife blade held by the bottom
of the knife clamp plate (B).
3. Place spare knife in the working position and place a new spare knife
underneath, if available.
4. Tighten the two M6 setscrews to 12 Nm.
‘Cut and Hold’ rail adjustment
After much use, the moving part of the ‘Cut and Hold’ rail (G) may develop wear. In
such a case this may be adjusted, to ensure optimum working of the ‘Cut and Hold’.
Adjust as follows:
1. Release hydraulic pressure from
accumulators, as shown. (See
procedure above). Allow enough oil to
escape until the slide rail moves
forward 80 mm approximately, before
re-tightening the hose fitting.
2. Disconnect the ram rod (J) from the
slider (D), using a 22 mm spanner on
the nyloc nut and a slim 17 mm open-
ended spanner on the piston rod flats.
Once the nut and washers have been
removed, the slider (D) can now be
moved in and out freely. It can also be
completely removed for cleaning.
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