Star Tech Journal

Issue: 1991-May - Vol 13 Issue 3

.
,
..
,'
...... , . .. . .
Wf 4!:i 1 QQl <
# denotes step
Input Optics
4 Nut
5
Central Roller
Spring
Shaft
3 Wire Spring
6 Wire Retaining
Clip
2 Casting Screws (2)
8 Upper Belt
Magnetic
Head
Assembly
8 Upper Belt
Center Optics
Anti-Cheat
Optic
9 Head Mounting
Screws (4)
Anti-Cheat-----~~~~
Lever
-,,..J,--...
IN'l-..-
Torsion
1 O Rear Roller Shaft Screws (2)
12 Lower Shaft
Screws (2)
11 Output Shaft
Screws (2)
Figure 2
g) Remove Output Shaft Screws and Output Shaft
(Figure 2, step 11).
h) Remove Lower Shaft Screws and Lower Shaft Anti-
Cheat Assembly with Upper Belts attached. Push
down to release shaft from BT (Figure 2, step 12).
l• While you have the BT disassembled, clean the optics
with isopropyl alcohol and a swab. First remove the
Input Optic by removing the Phillips screw, then
swab both lenses with alcohol and remount optic
(refer to figure 2 for locations of optics) .
Now clean the Center two optics with alcohol. Turn
Magnetic Head Assembly over and swab mag head
with alcohol removing all dirt and gum. Now swab the
Anti-Cheat Optic, located on the Magnetic Head
Assembly, with alcohol. If you cannot get the swab in
the slot between the Anti-Cheat Optic. then use tuner
cleaner spray to clean this area (use the one that's
safe on plastics) .
I••·
R¢.6,S$E~B~'(••· •
A few things to keep in mind when reassembling the
BT.
1) All the shafts are shorter on one side than the
other. Looking at the BT from the back, the shaft's
short side goes to the left.
2) The Upper Belts should be kept in line with the
Lower Belts as much as possible. This will avoid
pinching the Upper Belts under the shafts while
reassembling the BT.
3) When remounting the Magnetic Head Assembly,
firmly push the assembly down on the "V" shaped
mounts and put the top two screws in first. This will
hold the alignment of the Magnetic Head Assembly.
I . PROCEDURE
I
a) Slip new Upper Belts over Lower Shaft/ Anti-Cheat
Assembly and remount Lower Shaft/ Anti-Cheat As-
sembly with Anti-Cheat Lever up.
bl Remount Output Shaft. being sure to hook the
Torsion Spring (Figure 3, number 5) to the Lower
(
.· MayJ991
Shaft/Anti-Cheat Assembly. Make sure to keep roller
flanges outside of the Lower Shaft/ Anti-Cheat As-
sembly rollers. The Anti-Cheat Lever should spring
back when pushed, iftheTorsionSpringishooked up
correctly.
c) Now slip the belts over the lower half of the
Magnetic Head Assembly and in keeping with note 3
above, remount Magnetic Head Assembly. The belts
go under the top half of Magnetic Head Assembly.
d) Remount Rear Roller Shaft, being careful not to
pinch belts, and keep the belts straight.
e) Slip the belts over the Input Shaft, be careful not to
drop the bushings. At this point, make sure the belts
are straight (note 2 above) and move freely. Rotate the
large white gear on the side of the BT, to check for
proper rotation of the Upper Belts.
f) Put on Wire Retaining Clip, then put on the Central
Roller Spring, Nut and tighten. Put Wire Spring back
on the tighten Casting Screws (be sure not to pinch
optic wires with Wire Spring).
g) Replace Top Cover with Pivot Screws (with spacers
on them). Hook up and test BT.

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#1
#2
#3
#4
#5
SOLD OUT
#6/7 SOLD OUT
Lower Shaft/Anti-Cheat Ass.
#8 SOLD OUT
#9 SOLD OUT
# 10
#11
#12
Flanges Outside
Of Rollers
~) Spring
Here
(Mar79-Feb80), 12 iss/144 pp.
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