YOKOGAWA RC400G, User Manual

Page: 109 / 141

<8. Maintenance>
8-8
IM 12F4A1-01E
Overflow Outlet
Sand
Filtrate Outlet
Cleaning Water Inlet
Sample Water Inlet
Filter Cylinder
Filter
O-ring
F8.6.ai
Fixing Screws (4)
Set Screws (4)
Figure 8.6 Inspection and Maintenance of Sand Filter
8.10 Inspection of Electrode Mechanism Block
and Replacement of Damaged Parts
Parts used in the detector’s electrode mechanism block, such as a motor assembly and rotating
shaft assembly, have a limited service life. Their service life may be reduced unless they are used
in appropriate condition. The electrode mechanism block should be checked regularly to ensure
proper operation. The check is conducted effectively by combining full check and quick check.
In a full check components are checked thoroughly to ensure that no failure has occurred and a
quick check is conducted at the time of calibration or other maintenance work.
It is recommended that components be replaced at recommended replacement intervals. Table
8.2 shows items that need periodic inspection/maintenance and replacement.
Table 8.2 Periodic Inspection/Maintenance and Replacement Parts
Item
Inspection Intervals
Full Check/Quick Check
Recommended Replacement Intervals
Rotating contact
Drive belt
Driven shaft assembly
Motor assembly/gear head
� *
6 months/3 months
6 months/3 months
6 months/3 montsh
1 year (operating time)
3 years (operating time)
3 years (operating time)
3 years (operating time)
*: Rotating contact does not require inspection.
14th Edition : Jul. 15, 2020