tekmar M3056 O-Ring Kit - Manual

1 of 2 © 2011 D M3056 - 04/11
Replacement O-Rings for 3/4 to 1-1/4” Brass Valves (M3056)
D M3056
04/11
Accessories Replaces: New
Installation & Operation Manual
This seal replacement kit is for tekmar Brass Valve models 710, 711, 712, 720, 721 and
722. The kit includes two small o-rings and a large o-ring. All o-rings are lubricated with
silicone grease.
Screw
Blue Handle
C-Clip
Indicator Plate
Small O-Ring
Valve
Body
Valve Flap
Large O-Ring
Bottom Cover
Bottom Access:
To install replacement o-rings, ensure the
following tools are available:
Slot (flat) screwdriver
10 mm hex key
Steel wool
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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 a 10 mm hex key 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 and tighten with 10 mm hex key.
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 according to markings made in Step 4.
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.
Top or Bottom Access?
Before getting started, identify whether the valve is assembled from the top or bottom.
Hex cap indicates
valve is accessed
from bottom.
Small O-Ring