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1997-08-29
HR 7805
DAP151
SERVICE INSTRUCTIONS
Replacing coupling mixing/kneading attachment of HR 7805 food processor
Due to a change in material, the coupling of the mixing/kneading attachment is now available as a service
part under code number 4822 528 11192.
Tools required for replacement of the coupling:
• crosshead screwdriver Pzd.1
• Torx screwdriver T10
• flat-end electrician’s screwdriver
• a saw or a pair of cutting nippers
• auxiliary tools (see below)
• pillar drilling machine (or lever press)
auxiliary tools:
• jig for gearbox unit
• plug-type assembly tool for coupling
– Material of gearbox unit jig:
* plate: synthetic resin bonded fabric (SRBF) or synthetic resin bonded paper (SRBP)
* pins: steel or brass
– Material of plug-type assembly tool:
* steel or brass
Note: Although the coupling could be assembled manually with help of the auxiliary tools, we advise use
of a drilling machine or press to ensure accurate placement and to avoid customer complaints
about noise due to misalignment of the coupling.
4822 729 21862 PCS 88 817
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Disassembly and reassembly of the gearbox
housing and replacement of the coupling.
1. Loosen the screws by means of a crosshead
screwdriver Pzd. 1 and a Torx screwdriver T10.
2. Open the housing by detaching the separable snap
joints by means of a flat-ended electrician’s
screwdriver and lift the lower housing and the
gearbox unit out of the upper housing.
2
3. Loosen the two crosshead screws in the bottom of
the gearbox unit by means of a crosshead
screwdriver (Pzd.1) and take the gearbox unit with
defective coupling out of the lower housing.
1
3
4. Clamp the gearbox unit in a vice and use a saw or
a pair of cutting nippers to cut off part of the
defective coupling. Do not damage the shaft!