Ametek PK II, Operating Instructions Manual, Page: 26 / 28

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8.2.2 Internal Leaks
You can perform a check for internal leaks with the input pressure applied and with the
cover plate off.
Step 1
Place full range of weights onto tester.
Step 2
Turn OFF (Close) the OUTPUT valve.
Step 3
Apply liquid leak detector to all internal fit-
tings from the input connection to the output
valve.
Step 4
Check for leaks by the presence of bubbles
on joints.
Step 5
If a leak is found, the PK II Tester must be
returned to AMETEK for repair.
WARNING
Leak checks should be done in the
order described above,
otherwise the source of the leak may
not be accurately identified.
CAUTION
DO NOT ATTEMPT TO REPAIR
INTERNAL LEAKS.
Return the PK II tester to AMETEK for
internal leak repairs.
Failure to do so may void product
warranty.
8.3 REPLACING THE NOZZLE AND O-RING
Remove the ball and nozzle and the nozzle O-ring (10-90013) . The replacement O-ring
should be wiped clean with a lint-free cloth and placed within the groove in the nozzle
body. DO NOT LUBRICATE THE O-RING WITH ANY FORM OF OIL OR GREASE.
Clean the ball and nozzle as described in Section 5.1.3.- Cleaning the Ball and Nozzle,
and reassemble.