Det-Tronics SW9200x Slickwatch IR Oil Detection System - Manual (Page 15)

4. Avoiding contact with the sync pickoff on the Rear
Panel p.c. board, carefully slide the motor and
attached filterwheel out of the motorbox. Viewing
ports have been provided on each side of the motor-
box to permit visual inspection of the position of the
filterwheel relative to the sync pickoff.
5. Remove the nut that holds the hub to the filterwheel
and detach the filterwheel from the hub. DO NOT
TOUCH the optical filters with bare hands.
6. Remove the nut from the replacement motor hub
and slide the filterwheel onto the replacement motor
shaft. Make sure that the side of the filterwheel with
the filter retaining rings/fan blades is facing toward
the body of the motor. Replace the nut, using low
strength thread locking compound on the threads of
the hub. Make sure the compound is thoroughly
dried before rotating the filterwheel.
7. Replace the motor/filterwheel assembly ensuring
that the filterwheel edge is straddled by the sync
pickoff. Check that the filterwheel does not come
into contact with the sync pickoff during rotation.
Route the wires so that they are not in front of the
lens.
8. Replace the four screws that hold the motor to the
front panel. Reconnect the motor connectors.
REPLACEMENT OF TRANSMITTER LAMP (Variable
Interval)
Replacement of the 250 watt lamp is dependent on the
line voltage at the installation:
LINE VOLTAGE EXPECTED 250 W LAMP LIFE*
130 VAC 2,000 hours
123 VAC 4,000 hours
117 VAC 8,000 hours
111 VAC 16,000 hours
* Repeated application and disconnection of power to
the instrument or excessive shock/vibration can signifi-
cantly reduce the expected lamp life.
WARNING
Do not inspect the transmitter while the lamp is
operating. To avoid possible eye damage, discon-
nect instrument power before checking.
To replace the transmitter lamp, use the following proce-
dure:
1. Disconnect all power to the instrument.
2. As an additional precaution, disconnect power wires
at the junction box.
3. Remove the window assembly from the transmitter
housing by rotating it counterclockwise.
4. Move the window assembly to a safe place, being
careful not to scratch the window.
5. Remove the old lamp by rotating it counterclockwise
in the socket. DO NOT TOUCH the transmitter
reflector with bare hands.
NOTE
DO NOT TOUCH the lamp envelope with bare fin-
gers. Use lamp wrapper provided with new lamp,
clean white gloves, or clean optical tissue when
inserting a new lamp. Also, be careful to avoid
touching the inner surface of the reflector.
6. Install the new lamp by rotating it clockwise until it is
firmly seated in the socket. Replacement lamps are
available from the factory. (See Recommended
Spare Parts List.)
7. Be sure that the lamp is centered in the reflector and
does not touch the edge of the reflector opening. If
the lamp is touching the reflector, gently apply side-
ways pressure to bend the lamp/socket assembly
until it is no longer touching the reflector opening
and is centered. Use clean gloves, tissue, etc., and
do not touch the reflector surface or lamp envelope
with bare hands, since acid from the fingertips will
etch the lamp envelope and materially reduce the
life of the lamp.
8. Replace the window assembly and tighten down
securely until at least five full threads are engaged.
9. Check tightness of cover bolts and window assem-
blies on both housings.
10. Reconnect power wires in the junction box.
11. Close and recheck tightness of junction box cover.
12. Reapply power.
13. Repeat Optical Alignment procedure.
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