Division of Mittler Corp.
P.O. Box 110 Foristell, Missouri 63348-0110
10 Cooperative Way Wright City, MO 63390
(636) 745-7757
FAX: (636) 745-2874
BRP – Revised 10-6-03 \\Mbserver01\msoffice\Product Quotes\BILL P\UTN\Manual\Acme Screw & Broanze Nut Replacement 9-18-03.doc
ULTIMATE TUBING NOTCHER
Adjustment Instructions
Upper & Lower Acme Screw and Bronze Nut Replacement:
1. Remove bolts holding vise base to compound feed table – remove vise.
Upper Adjustment Screw Replacement – Left-to-Right Movement:
2. Remove upper slider block adjustment screws using 3/16” Allen wrench – located on
backside of upper slide gib assembly.
3. Loosen (Do Not Remove) 5 gib mounting 5/16” socket head cap screws on vise
mounting plate to allow front gib clearance.
4. Turn upper hand wheel clockwise (left-to-right movement) to remove vise mounting
plate and upper gibs from bronze gibs to expose bronze adjusting nut. Place vise
mounting plate on bench. CAUTION: Proceed with care – Do Not Drop
5. Remove setscrew in upper bronze nut mounting block – use 1/8” Allen wrench.
6. Remove snap ring on each side of bronze nut.
7. Remove bronze nut from housing and discard.
8. Install new bronze nut (right hand thread) in upper mounting block.
9. Install new snap ring on each side of bronze nut.
10. Use 1/8” drill bit and drill point the bronze nut through the set screw hole in mounting
block – Do Not drill through bronze bushing.
11. Install/Tighten set screw – use 1/8” Allen wrench.
12. Remove Nylok nut from hand wheel – use ¾” socket.
13. Remove hand wheel from shaft.
14. Remove acme screw from bronze bushing and mounting block.
15. Replace bronze bushing in mounting block – shoulder to the inside of mounting block.
16. Install new acme screw in bronze bushing (right hand thread).
17. Install new bronze washer over shaft on outside of mounting block.
18. Install hand wheel and Nylok nut – Tighten until clearance between hand wheel and
block is removed – DO Not over tighten
Lower Adjustment Screw Replacement – In-to-Out Movement:
19. Remove lower slider block adjustment screws using 3/16” Allen wrench – located on
right side of lower slide gib assembly.
20. Loosen (Do Not Remove) 5 gib mounting 5/16” socket head cap screws on underside
of base plate to allow left gib clearance.
21. Turn lower hand wheel clockwise (in-to-out movement) to remove bronze gib block
from lower slide gibs to expose bronze adjusting nut. Place bronze gib block on bench.
CAUTION: Proceed with care – Do Not Drop
22. Remove setscrew in lower bronze nut mounting block – use 1/8” Allen wrench.
23. Remove snap ring on each side of lower bronze nut.
24. Remove bronze nut from housing and discard.
25. Install new bronze nut (left hand thread) in lower mounting block.
26. Install new snap ring on each side of bronze nut.
(38 pages)
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