Victaulic FireLock NXT 769 Series - Replacing the Strainer Screen for Series 776 Low-Pressure Actuators

REPLACINGTHESTRAINERSCREENFORSERIES776LOW-
PRESSUREACTUATORS
1. Remove the system from service by following steps 1 – 11 of the
“Required Internal Inspection” section.
2. Remove the Series 776 Low-Pressure Actuator from the trim. Refer
to the applicable trim drawing for details.
3. Remove the strainer assembly from the Series 776 Low-Pressure
Actuator, as shown above. Discard the strainer screen only.
CAUTION
• DONOTre-usestrainerscreens.Afterremoval,theold
strainerscreenmustbereplacedwithanew,Victaulic-
suppliedscreen.
Failuretofollowthisinstructioncouldcauseimpropervalve
operation,resultinginpropertydamage.
4. Use only a new, Victaulic-supplied strainer screen. Insert the
strainer screen into the strainer assembly.
5. Install the strainer assembly into the Series 776 Low-Pressure
Actuator carefully. Avoid damage to the o-ring seals.
6. Re-install the Series 776 Low-Pressure Actuator into the trim.
Refer to the applicable trim drawing for details.
7. Place the system back in service by following the “Placing the
System in Service” section.
REV_B
FireLockNXT™AutoConvertPreactionValve
SERIES 769
PreactionElectricAutoConvertDryTrim
I-769P.AC/ELECINSTALLATION,MAINTENANCE,ANDTESTINGMANUAL
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2009 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
I-769P.AC/ELEC_47