Buhnen HB 700, Operating Manual

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1
5. Close and lock the cover.
If the cover will not close, keep turning the adjusting screw back (clockwise) by approx.
15° until the cover closes easily.
6. Actuate the trigger.
• If the cover now closes correctly, proceed at step 7.
• If the cover still does not close correctly, repeat the adjustment from section 4.
7. Open the cover again.
8. Tighten the clamping screw (C1).
9. Fit the lever fixing screw (C4).
6.5 Replacing the cover gasket
Tools needed • 1 Phillips-type screwdriver size 1
Position carefully when
assembling with cover
D3
D4
D2
D1
Fig. ./1: Replacing the cover gasket
There must be no melt at all left in the tank when the nozzle end is replaced. Therefore
discharge the melt completely, e.g. into a collecting vessel.
1. Disconnect the compressed-air supply.
2. Lay the device on its side so that the underside of the cover is readily accessible.
3. Undo the fixing screws (D1) of the gasket-holder (D2) with the Phillips-type screwdriver.
Carefully remove the gasket-holder.
4. Carefully remove the gasket from the pressure plate (D4).
5. Insert the new gasket into the pressure plate so that it is in uniformly close contact all
over.
6. Fit the gasket-holder. In doing so position the vent hole carefully (see fig. 6.5/1). Tigh -
ten the fixing screws alternately.
Servicing/maintenance