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LIT-003-168

GRS Positioning Vise  

Complete Assembly #003-541

  PART 

# DESCRIPTION 

  1  003-064  Thread Pin, Left Hand 

  2  003-007  Jaw Screw

  3  003-009  Jaw, Right Hand

  4  003-065  Thread Pin, Right Hand 

  5  003-008  Jaw, Left Hand

  6  002-450  Bearing 5/16" Steel Ball

  7  003-142  Vise Crown S.S.

 8  003-151  Spring

  9  003-206  Shim Washer

 10  003-207  Lock  Button

 11  003-540  Handle  Assembly

 12  003-148  Mounting  Plate

 13  002-067  #10-32 x 1/2" SHCS

 14  022-171  Thrust Washer-.078 THK

 15  022-149  Bearing

 16  022-150  Race-.031  THK

 17  003-143  Spacer, Drag Pin

 18  002-212  Bearing, 5/8" x 1/2"

 19  002-214  Washer, 0.312 x 0.859 x 0.125

 20  002-112  5/16"-18 x 3/4" HHB

 21  003-144  Drag  Pin

 22  003-020  Spring, Block Drag

 23  003-067  1/2"-13 x 1/2" SSS FLT PT HF

 24  003-141  Base-Positioning  Vise

25   002-209  Nylon Fasteners 

 26  003-506  Tire  Assembly

 27  002-127  O-Ring, 0.625 x 0.75 x .062

 28  003-507  Pin Plate Assembly (2 Pin)

 29  003-508  Pin Plate Assembly (1 Pin)

 30  003-015  Pin,  1/4"

 31  003-016  Pin,  3/8"

 32  002-091  Wrench 1/4" T Handle Allen

 33  002-174  Roll Pin, 1/8" x 3/4"

 34  003-538  Post

 35  003-146  Yoke

36  003-661  1/4" Hex Drive Knob

900 Overlander Road • Emporia, KS 66801 USA 

800-835-3519 • 620-343-1084 • Fax: 620-343-9640 

[email protected] • www.grstools.com 

Last Updated: 2014-10-25

Vise Jaw Thread Replacement • #003-627 & #003-628

Overtightening the jaws will cause wear and damage to the threads. If jaws 

become loose, replace with kit #003-627. Remove the jaws by opening 

them as wide as possible until they come off the end of the jaw screw 

(FIG. 8). The jaw thread pin is located on the underside of each jaw.  

NOTE: Before removing pins, locate the one with the “L”. This is the left 

hand thread pin and will need to be replaced with the same. Apply a small 

amount of synthetic grease (included in kit) to the O-rings and jaw screw 

before installing them. Lift the jaw screw out of the yoke and replace it. 

Note which side the left hand thread is on. Grease the threads and yoke 

well.
Start the jaw threads at the same time when replacing them (FIG. 9). Hold 

each jaw in position and turn the jaw screw to close them. Either a large 

rubber band or a second person is useful to hold the jaws against the 

thread while the jaw screw is turned. If the jaws don’t meet at the same 

time in the center, remove them and try starting the threads at the same 

time again.

FIG. 8

“L” For Left 

Hand Thread

Jaw Thread Pin 

one located in each jaw

Jaw Screw

Jaw 

FIG. 9

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