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Identify and verify that you have all the parts listed. Read 

the instructions at least once, familiarizing yourself with the 
parts and assembly options before beginning assembly.  

 

There are two ways to assemble the stop, depending on whether 

you want the stop arm on the left or right side of the stop body. For best 
support mount the stop arm so it's between the stop body and the work. 

 

Mount the stop arm to the stop block so that 

the rounded edge of the stop block 

(opposite from 

the T-slot side)

 faces the front of the track. 

4512S Flip Stop

Please Read Carefully!

1

Part  Desc . . . . . Qty

4512A 

3/4" Arm . . . . . . . . . . .  1

4519B 

Stop Block . . . . . . . . . .  1

4519P 

Pivot Pin . . . . . . . . . . .  1

4512SF MDF 

Block 

. . . . . . . . . .  1

MF020 1-1/4" 

screw 

. . . . . . . . .  1

5760B 

Oval nut . . . . . . . . . . . .  1

Part  Desc . . . . . Qty

5540 

Knob . . . . . . . . . . . . . . .  1

HB050 

1-1/2" bolt . . . . . . . . . .  1

WS001 

1/4" Steel Washer . . . .  1

WN001  1/4" Nylon Washer  . .  1
NUT004  10-24 Nut  . . . . . . . . . .  1
NUT010A Locknut . . . . . . . . . . . .  1
MA002  10-24 Set Screw . . . . .  1
5786 

3/32" Allen Wrench  .  1

Parts List

 

  Starting from the ribbed 

side of the stop body, 

insert the 1-1/2" hex bolt 

(HB050)

 thru the cross 

hole in the stop 

body and attach 

the knob 

(5540) 

to the end of 

the bolt.  

NUT010A

on 4519P

Stop Arm:

4512A

T-slot face of 

Stop Block

NUT004 

& MA002

Allen 

Wrench

WN001

5540

ASSEMBLY

 

Clamp the smooth portion of the 

pivot pin 

(4519P) 

in a vise with non-

marring jaws and screw the locknut 

(NUT010A) 

on the threaded end of the pivot pin until 
the nut is flush with the end of the pin.

Insert the 1/4" steel washer 

(WS001)

 

on the pivot pin (against the nut), 

followed by the stop arm 

(4512A)

 

and the 1/4" nylon washer 

(WN001)

.

Start the 10-24 set screw 

(MA002)

 

in one of the 10-24 nuts 

(NUT004)

Slide the nut/set screw into the T-slot 

indicated in the stop block 

(4519B)

.

Insert the smooth portion of the pivot pin 

(4519P)

 

in the diamond/square shaped slot in the stop block 

and, using the 3/32" allen wrench 

(5786)

 tighten the 

set screw on the pivot pin, locking the pivot pin in the stop 
body. Make sure the set screw nut is not rubbing against 
the nylon washer on the pivot pin. Adjust the locknut on 
the pivot pin to get the desired amount of tension on the 
stop arm so it pivots as hard or as easy as you like.

A

B

C

D

E

NUT010A 

fl ush with end 

of 4519P

4519P Pivot Pin

WS001

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