Retsch GM 300 - Manual (Page 19)

Operating the machine
19
5.3 Overview table of the parts of the device
Element Description Function
A Grinding jar cover Closes the grinding chamber
B Flap Prevents interference with the grinding chamber
C Grinding chamber Accommodates the sample material
D Knife Grinds the sample material
E Jar holder (base frame) Accommodates the grinding jar
F Display window To check settings and operating conditions
G Control knob To adjust the device
H START button To start the grinding process
I STOP button To stop the grinding process
J Button to open the flap Releases the flap lock
K Not assigned No function
L Serial port Software update and service
M On/off button Disconnects device from the power supply
N Housing fan Cools the drive
O Electrical connection IEC connector
P Tightening Is held by the electromechanical interlock
Q Seal of tightening Prevents penetration of dirt
R Cone dome Seals the knife bearing
S Bearing flange Supports the knife shaft
W Coupler Connects bearing flange and drive
X Centring ring Guides the coupler