Nor-Cal Linear Gate Valve User Manual
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Nor-Cal Products, Inc., 1967 South Oregon St., Yreka, CA 96097 • Toll Free 800-824-4166 or 530-842-4457 • www.n-c.com
Rev. 1-2013
13. Using a punch and hammer, remove wheels from their pin.
Note: If the pin does not move, try from the other side.
14. Using an arbor press, remove the bearings from the links and wheels; Discard expendable parts;
15. Clean all reusable parts such as the gate, Strongback, Links, Carriage Bars, and Gate Spring with IPA;
16. Press new Bearings in using an arbor press; For Viton Bonnet sealing valves, ensure that the Bearings are prop-
erly lubricated with the appropriate vacuum grease( Micro Coat 601 recommended); For Copper sealing bonnet
valves run bearings dry
17. Verify that all bearings spin freely;
18. Install Washers, Pins and R-Rings into Strongback;
19. The recommended technique is as follows:
a) Slide long side of pin through hole first (the side without the groove);
b) Install R-Ring close to the end of the pin, not in the groove;
c) Add on the pin one Washer, then the Wheel, then the other two Washers;
d) Push Pin in until the R-Ring snaps into its groove;
20. Verify that all wheels spin freely
21. Set Strongback aside for later assembly
22. Install Links, Washers, and Pins into Gate Slots
23. Adjust Pins to correspond to Strongback Pin Pockets
24. Install Gate to Strongback; Verify that all Pins fit into Strongback pockets
25. Tighten the set screws loosened in step # 10
26. Verify that Gate moves freely up and down and is flush with the Strongback in the down position
27. Install Gate Spring
28. Install and tighten set screw removed in step # 9
29. Reattach Upper Linkage to Strongback Lower Linkage-Upper Linkage,
using the technique detailed in step # 19
30. Replace complete assembly into valve body
Figure 7: PIN, WASHERS AND R-RING REMOVAL DRAWING
UPPER LINKAGE
WASHERS (3X)
R-RING
PIN
R-RING GROOVE
LOWER LINKAGE
NOTE: THE SAME TECHNIQUE IS USED TO REMOVE AND
REINSTALL THE WHEELS IN THE STRONGBACK ASSEMBLY