Swagelok PRS4, User Manual

Page: 7 / 20

7
Maintenance
WARNING
Incorrect or improper repair or servicing of this product can cause serious personal injury and
property damage.
-
All repairs, servicing, and testing of this product must be performed by competent personnel.
- Following any maintenance of the regulator, it is recommended that the product be tested for operation
and leakage.
- The product should be checked periodically for proper and safe operation.
It is the user’s sole
responsibility to determine the frequency of maintenance based on the application.
- To reduce maintenance related system downtime to a minimum, either during commissioning or normal
operation, Swagelok recommends having maintenance kits readily available on site. The need for
maintenance kits is particularly important during the commissioning phase of a system installation due to
residual assembly debris remaining in the system. Such debris can cause a seat leak in the regulator,
resulting in components needing to be replaced.
Required Tools for Maintenance
Smooth-jawed vise C-ring pliers
②
10 mm socket
①
Seat retainer insertion tool
② :
RHPS-4-SEAT-TOOL
14 mm open-ended
wrench
②
Calibrated torque wrench up
to 37 lbf·ft (50 N·m)
19 mm open-ended
wrench
①
25 mm crows foot
①
Lubricant (included in kit):
Krytox® 240 AC
Adhesive (not included in
kit):
Loctite® 5045, 4052 or 243
36 mm crows foot
②
45 mm crows foot
①
5 mm hex drive
②
Liquid leak detector
①
PRS8 series only
②
PRS4 series only
Table 1