
4.Mark screw positions for front and rear connectors and 
tape ¼" from drill tip to set drilling depth. Use care not to drill through tabletop.
5.Fasten front connectors to front edge of board as shown in Figure 2 using ¾" screws. Fasten screws half way. Do not fully tighten.
6.Assemble right rear connector as shown in Figure 3 and fasten to board. Select screw length based upon board thickness.* Fasten screws securely.
*For board thicknesses of 5/8" or less:
If your board is 5⁄8" thick or less please use the
5⁄8" screws in place of the ¾" screws as shown in Figures 3 and 4. Do not use ¾" screws included with hardware kit since they might break through bottom of board.
7.Assemble left rear connector as shown in Figure 4 and fasten to board. Fasten screws securely. Pulleys are designed to be tight fitting and do not spin freely.
Figure 2
Front connector
¾"
Screw
Figure 4
![]()
 ¾"
Screws*
![]()
 ¾"
Screws*
Left Rear
Connector
Figure 3
  | ¾"  | 
  | Screw  | 
Rear Brake  | 
  | 
Knob  | 
  | 
¾"  | 3⁄8"  | 
Washer  | |
Screw*  | 
  | 
  | Pulley  | 
  | Post  | 
Right Rear
Connector
½" Brake
Stud Screw
*Use the 5⁄8" screws in place of the ¾"screws for boards 5⁄8" thick or less.
8.  | Place straightedge in center of drawing board  | 
  | parallel to front edge as shown in Figure 5.  | 
9.  | Loop upper wires around pulleys in rear wire  | 
  | connectors making sure that spring is centered.  | 
Figure 5
Center spring on board
Rear
Brake Knob
10.  | Thread lower left and lower right wires through  | 
  | front wire connectors. Wire should pass  | 
  | between connector and board as shown in  | 
  | Figure 6.  | 
11.  | With spring still centered at top, pull slack out  | 
  | of wire passing through lower left connector  | 
  | and wrap wire around mounting screw. Fasten  | 
  | screw securely.  | 
12.  | Pull slack out of wire passing through lower right  | 
  | connector until spring at top is stretched to about  | 
  | 2½" in length. Wrap wire around mounting screw  | 
  | and fasten screw securely. Use care to set spring  | 
  | tension as directed for best performance.  | 
13.  | Excess wire can be trimmed off leaving  | 
  | several inches for future adjustment.  | 
Stretch spring to 2½" in length
for proper tension
Brake Knob
Brake Knob  | Straightedge  | 
Figure 6