Mittler Bros Machine & Tool Vise-Cross-Slide-Screw - Manual (Page 2)

Upper & Lower Acme Screw and Bronze Nut Replacement Page 2
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27. 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.
28. Install/Tighten set screw – use 1/8” Allen wrench.
29. Remove Nylok nut from lower hand wheel – use ¾” socket.
30. Remove hand wheel from shaft.
31. Remove acme screw from bronze bushing and mounting block.
32. Replace bronze bushing in lower mounting block – shoulder to the inside of mounting
block.
33. Install new acme screw in bronze bushing (left hand thread).
34. Install new bronze washer over shaft on outside of mounting block.
35. Install hand wheel and Nylok nut – Tighten until clearance between hand wheel and
block is removed – DO NOT over tighten
36. Install slide gib block onto lower gibs on base plate – NOTE: Left hand thread bronze
nut to be on bottom for in-to-out movement.
37. Thread lower acme screw into bronze nut – turn counterclockwise until seated against
front bushing block
38. Install and adjust lower slide block screws (2) on right hand side until smooth in-to-out
movement of table is achieved – CAUTION DO NOT over tighten - Adjust so have
slight drag on slide blocks
39. Tighten 5 left gib 5/16” socket head cap screws on underside of base plate.
40. Install vise-mounting plate onto bronze gib block.
41. Thread upper acme screw into bronze nut – turn counterclockwise until seated against
bushing block on right side.
42. Install and adjust upper slide block screws (2) on back side until smooth movement of
table is achieved – CAUTION DO NOT over tighten - Adjust so have slight drag on
slide blocks
43. Tighten 5 gib mounting 5/16” socket head cap screws on front of vise mounting plate.
44. Install 6” x 6” bronze gib block guard on backside.
45. Install vise and tighten bolts.