Ames Fire & Waterworks 1000SS Stainless Steel Detector Check Valves - Manual (Page 4)

Removal & Replacement
of Knuckle Joint Assembly
(Internal Closing Assembly)
1. Shut down water system and lock out if possible.
2. Loosen vent screw in lid slowly to ensure system pressure has
been relieved.
3. Loosen and remove all inspection port bolts and remove
lid and gasket from valve.
4. Install proper size clapper retainer clip (see Figure 1).
Be sure clip is pushed to within 1 ⁄
2
” of linkage.
5. Loosen equally the two knuckle joint mounting bolts, until as-
sembly is free. As bolts are loosened, linkage will release slightly
and lock clapper retainer clip in place.
6. Remove knuckle joint from body assuring clapper retainer clip is
not disturbed, as preloaded knuckle joint springs have consider-
able tension in this position.
7. Bolt the knuckle joint to the outside of the body using the new 3 ⁄
8
”
bolts supplied with the new knuckle joint (see Figure 2).
8. Push on clapper plate to release clapper retainer clip, remove
and slowly release tension on clapper. Unbolt knuckle joint as-
sembly from outside of body.
9. Bolt replacement knuckle joint assembly to body.
10. Push on clapper plate to extend springs and install clapper
retainer clip, making sure springs are seated on pins. Unbolt
knuckle joint assembly from body bolt hole.
11. Insert two new 3 ⁄
8
” mounting bolts and washers through mount-
ing holes in body. Position knuckle joint in place inside body,
and finger tighten both bolts.
12. Torque knuckle joint mounting bolts to 60 inch-pounds. Re-
move clapper retainer clip.
13. Replace lid and new gasket.
Repair Parts
2
Knuckle Joint Assembly 1
4
3
Housing Half Section
1 8 9
7 6
WARNING ! Depressurize valve before servicing.
Item # Description
1. Knuckle Joint Assembly (Complete Unit)
2. Clapper Plate With Attached Link (not shown)
3. Springs
4. 3 /
8
" Stainless Steel Bolts
5. Washer (not shown)
6. Bronze Seat (Replaceable in Line)
7. Seat O-Ring
8. Cover Plate
9. Groove Coupler
10. Clapper Retainer Clip (Diagram 1)
RP/IS-A-1000SS 1329 EDP# 7016818 © 2013 Ames Fire & Waterworks
www.amesfirewater.com
A Watts Water Technologies Company USA: Backflow- Tel: (916) 928-0123 • Fax: (916) 928-9333
Control Valves- Tel: (713) 943-0688 • Fax: (713) 944-9445
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068
Limited Warranty: Ames Fire & Waterworks (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date
of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS 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, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting
from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no
control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above
limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to
determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
WARNING: This product contains chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm.
For more information: www.watts.com/prop65
Figure 1 Figure 2
Claper Retainer
Direction of
Flow