Vari Lite VL3000 Wash, Service Manual

Page: 59 / 245

M
AINTENANCE
P
ROCEDURES
: G
OBO
T
IMING
A
DJUSTMENTS
02.9678.0010 D 39
2
Figure 2-20: Gobo Timing Adjustments
Position index pulley so large flange is
centered in optical sensor
Gobo Wheel 3
(forward)
Gobo Wheel 2
(middle)
Gobo Wheel 1
(aft)
Insert a 3" long #4 or M3 screw (or 0.125" diameter
pin) completely through aligned holes in wheels and
both bulkheads as shown. This will lock the wheels in
the "open" position.
Adjust individual wheels as follows...
First align outside planet gear
timing mark with notch in wheel.
Loosen index belt just enough to
slip teeth and rotate index pulley
to center slot in optical sensor.
Reset tension on belt and verify
that pulley slot is still centered in
sensor and sensor is centered
between two guide marks on
pulley flange.
First align outside planet gear timing
mark with mark in sun gear. Notch in
wheel should be centered between
opposite planet gear teeth. Loosen
index belt just enough to slip teeth and
rotate index pulley to center slot in
optical sensor. Reset tension on belt
and verify that pulley slot is still
centered in sensor and sensor is
centered between two guide marks on
pulley flange.
First align planet gear timing mark with
hole in wheel. Loosen index belt just
enough to slip teeth and rotate index
pulley to center slot in optical sensor.
Reset tension on belt and verify that
pulley slot is still centered in sensor
and sensor is centered between two
guide marks on pulley flange.
1)
2)
3)
Wheel 3
Wheel 2
Wheel 1
Align
Notch
Align
Align