4 Units Description 
4-
Figure 4-7    Dismounting of Sample Probe Unit 
Arm Cover
M3X10 Screw
Guiding pole
Probe Arm 
Assembly
Arm Base
Obstruction 
Spring
The Probe 
Assembly
M5X20 Screw
 
Dismounting steps are shown as follows. 
a. The probe assembly is fixed to the probe arm assembly by the guiding pole and 
obstruction spring. Remove the probe assembly by removing the arm cover, guiding 
pole and obstruction spring.   
b. The  probe  arm  assembly  is  fixed to  the  probe drive assembly  with  two M3X10 
hexagon  socket  head  screws  allocated  with  spring  pad.  Remove  the  probe  arm 
assembly by loosening the two socket screws. 
c. The sample probe unit is fixed to base board via three M5X20 hexagon socket head 
screws allocated with spring pad. Remove the sample probe unit by loosening the 
three socket screws. 
  Reverse the steps described above to mount the sample probe unit. 
Precautions: 
1.  After installing the probe into guiding pole with obstruction spring, make  sure probe 
assembly move freely up and down. If not, you should adjust the guiding pole to make it 
move  freely.  Otherwise  the  function  of  protecting  the  probe  against  collision  in  the 
vertical direction may not work well. 
2.  Make  sure  that  the  probe  surface  is  clean  while  removing  and  installing  the  probe 
assembly. 
3.  Disconnecting  correlative  power  cables,  data  cables  and  liquid  connecting  before 
performing the above steps.