UM1004 | MRO-00011 05/21 Rev.0 DCO-016875 8
Joint A Joint B
Figure 4: J-28348-64 Axial Isolator External Joints Joint C
Joint D Joint E
Joint F
Figure 5: J-28348-64 Axial Isolator Internal Joints
9.0 FIELD CHECKS AND MAINTENANCE
9.1 Service Intervals
Maintenance and replacement of key wear items is critical to maintaining performance of the Isolator. Recommended
service intervals for the Isolator components are shown in Table 8. See section 11.4 for Sealing Sub Assembly (J-28460-
39) repair and maintenance.
Table 6: Thread Lubricants & Locker/Sealant
Lubricant/Thread Locker/Thread Sealant
Table 7: Installation Torque
*Installation torque is intended to be typical installation torque used on entire MWD Tool. Install using established best practices.
Table 8: Service Intervals
Upon Elastomer Replacement
based on OAL
Level I Service should be performed regularly and incorporated into a regular maintenance schedule.
*Level II Service should be performed as needed based on inspection criteria in Section 9.2.