KMPS-1-64 Manual
12/18
KM 8000 Rev. A
Page 24 of 40
Copyright © 2018 Kulite Semiconductor Products, Inc.
All Rights Reserved.
There is a risk of electrical shock if the KMPS is powered during maintenance. It is
important to remove power before any maintenance operation.
Spare parts such as new top plates or screws can be ordered directly from Kulite using the
parts list found in APPENDIX E. For all maintenance steps there are part numbers listed.
These numbers refer to line number in the appendix. Numbers is brackets {} are replacements
for a high pressure H model.
5.1
O-Ring Maintenance
In order to seal properly the O-rings on the KMPS must be properly maintained. Kulite
recommends replacement of the O-rings every year but life time depends on operating
conditions and number of purge cycles. APPENDIX E lists the proper O-ring for various
pressure ranges/models of KMPS. It is important that the user select the proper O-ring for
the operating condition as the wrong O-ring may fail causing a leak in the system.
Before installation it is important to lubricate the O-rings with a small amount an appropriate
grease. Kulite typically uses a Krytox® high temperature grease but there are many other to
select from. To lubricate the O-rings a small amount of grease can be applied to a gloved
hand and then the O-ring can be gently rolled either in the fingers or palm of the hand.
5.1.1 Module O-rings
To replace O-rings on the modules or to install a new module the following steps need to be
followed:
Step 1:
Remove three screws (PN# 1) using appropriate Hex driver on each module to be serviced
(see
). It may be easier to remove the modules if the top plate screws are loosened slightly
Step 2:
Using 2 Hex Drivers, gently remove modules by levering them out. (See Figure 4).
Figure 4: Removing Modules
Step 5:
Replace all O-rings using appropriate O-ring (PN# 2,3) that has been properly lubricated. It is
important to install O-ring in the reference port even if an absolute unit is being used to avoid moisture
collecting in internal cavity (See Figure 5).
Reference Port:
O-ring missing
Summary of Contents for KMPS-1-64 Series
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