Model ph87 retraction sensor assembly, Sensor service instructions – Yokogawa pH/ORP Retractable PH97 User Manual

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IM M1263JL-A

Sensor Service Instructions

[Step A]. LOOSEN LOCKING

NUT AND FERRULES OF GLAND

FITTING, ITEM NO. 3.

Caution: THE SENSOR ASSEMBLY

IS STILL UNDER PRESSURE.

LOOSENING THE LOCKING NUT

COULD RESULT IN THE SENSOR

RETRACTING SUDDENLY AND

WITH A GREAT DEAL OF FORCE.

THIS COULD CAUSE DAMAGE

TO THE SENSOR ASSEMBLY

OR INJURY TO THE SERVICE

PERSON.

[Step B]. FULLY
RETRACT STAGE #1 SUB-
ASSEMBLY SHAFT.

BEFORE SERVICING REMOVE THE MODEL PH97 SENSOR FROM SERVICE FOLLOWING THE

STEP-BY-STEP INSTRUCTIONS [A] AND [B] IN ORDER AS SHOWN BELOW:

Model PH87 Retraction Sensor Assembly

[STEP A]. LOOSEN LOCkING
NUT AND FERRULES OF GLAND
FITTING, ITEM NO. 3.
CAUTION: THE SENSOR ASSEMBLY
IS STILL UNDER PRESSURE.
LOOSENING THE LOCkING NUT
COULD RESULT IN THE SENSOR
RETRACTING SUDDENLY AND
WITH A GREAT DEAL OF FORCE.
THIS COULD CAUSE DAMAGE
TO THE SENSOR ASSEMBLY
OR INJURY TO THE SERVICE
PERSON.

[STEP B]. FULLY
RETRACT STAGE #1 SUBASSEMBLY
SHAFT.

BEFOrE SErVICING rEmOVE ThE mODEL Ph97 SENSOr FrOm SErVICE FOLLOwING ThE STEP-By-STEP
INSTruCTIONS [A] AND [B] IN OrDEr AS ShOwN BELOw:

This manual is related to the following products:

pH/ORP Retractable PH87