Febco 825YD Series Installation Operation & Maintenance Download Page 1

STEP #1:  

When cleaning relief valve, remove 

module assembly from relief valve 

body by pulling, not twisting.

STEP #2:  

If module repair is necessary, 

remove plastic label from around 

pan head retaining screw.

STEP 3:  

Remove retaining screw and com-

pletely disassemble relief valve 

module. Thoroughly clean main 

guide. 

STEP 4:

New inner diaphragm will come in 

kit with fabric side out and the bead-

ed flange positioned up, as shown.

STEP 5:  

Position inner diaphragm over the 

main guide and drop into place with 

beaded flange fully engaging groove 

on main guide. 

IOM-F-RV

I N S T A L L A T I O N ,   O P E R A T I O N ,   M A I N T E N A N C E

Relief Valve Assembly Instructions

Series 825YD, 826YD, 860, 880V

Repair Kits: 905102, 905316, 905192, 905187, 905188,  

905189, 905190, 905191, 905227, 905228, 905229

Summary of Contents for 825YD Series

Page 1: ...ghly clean main guide STEP 4 New inner diaphragm will come in kit with fabric side out and the bead ed flange positioned up as shown STEP 5 Position inner diaphragm over the main guide and drop into place with beaded flange fully engaging groove on main guide IOM F RV I N S T A L L A T I O N O P E R A T I O N M A I N T E N A N C E Relief Valve Assembly Instructions Series 825YD 826YD 860 880V Repa...

Page 2: ... STEP 8 Turn guide diaphragm assem bly upside down and work disc holder into guide until flush with diaphragm STEP 9 Push the disc holder through the guide while holding the diaphragm flush against the end of the holder Continue until the holder stops on the guide Place the assembly on a flat surface with the diaphragm facing up This will ensure that excess rubber will roll to the inside of the ma...

Page 3: ...r the screw head to protect the outer diaphragm STEP 12 Reassemble disc and lower the guide to the disc holder DO NOT ALLOW THE DISC HOLDER TO TURN OR TWIST DURING THIS OPERATION Clean lubricate and install main guide O ring Models 825YD and 826 YD use a Stainless Steel Lower Guide and a Disc Washer in place of the Plastic Lower Guide as shown STEP 13 Place new outer diaphragm upside down on a fla...

Page 4: ...RESS OR IMPLIED THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty and the Company shall not be responsible for any incidental spe...

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