©2015
Alvin & CompAny, inC.
2
1101 and 2201 Assembly and Maintenance Instructions
6
7
8
9
10
Assemble right rear wire connector as shown in
Figure 3
and fasten to board using 3/4" screws (
J
). Fasten screws
securely. Rear pulleys (
F
) are designed to be tight fitting
and do not spin freely.
Assemble left rear wire connector as shown in
Figure 4
and fasten to board. Fasten screws securely. Rear pulleys
are designed to be tight fitting and do not spin freely.
Place straightedge in center of board parallel to front
edge as shown in
Figure 5.
Loop upper wires around
rear pulleys in rear wire connectors making sure that
spring is centered.
Thread lower left and lower right wires through front
wire connectors. Wire should pass between connector
and board as shown in
Figure 6.
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. Repeat on the right side,
using care to set spring tension as directed in
Figure 5
for best performance.
Excess wire can be trimmed off but leave several
inches for future adjustment.
1
2
3
4
5
To Adjust & Lock Parallel Straightedge Position:
Be sure both brake knobs (
B
) and rear adjustment knob (
G
) are free and loose. (See
Figure 5
for knob locations.)
Grasp one end of straightedge and hold firmly against drawing board.
Gently pivot other end of straightedge up or down until desired parallel position is reached.
Secure wire under rear adjustment knob in upper right corner to maintain parallel positioning.
With straightedge in desired position, gently tighten both left and right brake knobs.
CAUTION
Do not overtighten.
Overtightening brake screws will damage wires.
Figure 4
K
F
J
D
Figure 5
Stretch spring to 2½" in length
for proper tension
Center spring on board
Brake
Knob
B
Brake
Knob
B
D
E
C
C
G
B
Figure 6
Figure 3
G
J
E
H
J
J
K
F
C
J
