Azbil JTD720A, User Manual, Page: 53 / 76

Azbil Corporation Instrument maintenance and troubleshooting
Model JTD720A - Smart Multivariable Transmitter 4-3
4-1-3 : Attaching and Detaching the Main Unit Cover
(1) Detachment
When detaching the main unit cover, remove the four sets of nuts and bolts shown in
the diagram below.
Caution
After detaching the main unit cover, be careful not to scratch the
diaphragm.
Nut
Main Unit Cover
Bolt
Figure 4-2 Nuts and Bolts Fastening the Main Unit Cover
(2) Attachment
When attaching the main unit cover, fasten the bolts to the appropriate tightening
torque below. If the seal gaskets are damaged, replace them with new ones.
Table 4-1 Cover Bolt and Nut Tightening Torques (N·m)
Bolt/Nut Bolt/Nut Material
Bolt and Nut Tightening Torques (N·m)
When Using New
Gaskets
When Reusing
Gaskets
M10
Carbon steel 22±2 17±1
SUS304 15±2 10±1