tekmar M3057 User Manual

Installation & Operation Manual

Replacement O-Rings for 1-1/2 to 2” Brass Valves (M3057)

This seal replacement kit is for tekmar Brass Valve models 713, 714, 723 and 724.
The kit includes two small o-rings and a large o-ring. All o-rings are lubricated with

silicone grease.

Bottom Cover Removal Tool Assembly

Accessories

Screw

D M3057

04/11

Replaces: New

To remove the bottom cover of the valve, a special
tool can be assembled using the following:

One 1/2” NC x 2” long bolt with 3/4” hex head

•
Two 1/2” NC nuts

•

Thread both nuts onto the bolt. Then thread the first
nut backwards to lock against the second nut.

Repair procedure:

1. Remove screw attaching blue handle. If an actuator motor is installed,
remove hand wheel and screw.

2. Pull blue handle or actuator motor off of valve assembly.

3. Insert flat blade screwdriver into either rear slot of c-clip. Twist
screwdriver to pry off clip.

4. Mark the indicator plate position for later reference. Remove metal
indicator plate.

5. Turn valve assembly over and use special tool to unscrew bottom
cover.

6. Push valve flap assembly out through bottom of valve body.

7. Remove small o-ring from top of valve body.

8. Clean top of valve body using steel wool.

9. Remove other small o-ring from shaft of valve flap.

10. Clean the shaft of valve flap using steel wool and install new small
o-ring on shaft of valve flap.

11. Re-install valve flap assembly into valve body.

12. Remove the large o-ring from the bottom cover.

13. Clean the bottom cover using steel wool and replace the large o-ring.

14. Re-install bottom cover using special tool.

15. Install new small o-ring onto shaft of valve flap. Use your finger to
push the o-ring down between the valve body and shaft.

16. Re-install indicator plate.

17. Re-install c-clip onto valve shaft.

18. Re-install blue handle and screw or actuator motor, screw and
handwheel.

19. Rotate handle through its full motion both ways. It should be smooth
and stop at the ends of the range indicated on the plate.

Blue Handle

C-Clip

Indicator Plate

Small O-Ring

Valve
Body

Small O-Ring

Valve Flap

Large O-Ring

Bottom Cover

1 of 2 © 2011 D M3057 - 04/11

tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A.

Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. [phone] Web Site: www.tekmarcontrols.com

Product design, software and literature are Copyright © 2011 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

2 of 2

Head Offi ce: 5100 Silver Star Road,

All specifications are subject to change without notice.

Printed in Canada. D M3057 - 04/11.