Replacing jaws
The following tools are needed:
•
Allan key AF 2,5
•
Allan key AF4
•
Allan key AF5
•
Open jawed spanner AF8
•
Philips head screwdriver size 2
Fig.12
•
Pull out the mains plug.
•
Remove the cheesehead screw
Sch1
on the feed hopper using an Allan key AF4.
•
Remove the feed hopper.
•
Set the gap width to maximum by turning the handwheel anti-clockwise to the stop.
•
Remove the screws
S1
at the side using an Allan key AF4 and take off the top of the casing.
•
Take care with the earth cable!
•
Using a size 2 Philips head screwdriver, remove the four oval head screws
Sch2
and remove the two cover plates.
•
Using an open jawed spanner AF 8, remove the eight hexagonal cap screws
Sch3
•
Remove the two hexagonal cap screws
Sch4
using an Allan key AF 2.5 and take out the plate.
•
Pull the traverses upwards and out.
•
Remove the four cheesehead screws
Sch5
using an Allan key AF5. During assembling the tightening torque must not
exceed 10 Nm.
•
Remove the shim
K1
.
•
Change the jaws
B1
.
Follow the same procedure in reverse to reassemble.
!
Operation of the BB 51 with the feed hopper removed
is not permissible.
Risk of crushing fingers and hands!
17.12.1998
©
Retsch GmbH
18
Doc. No. GB 98.056.9999
