Disassembly and Replacement
Replacement
1. Replace the turret shaft.
2. Pass the turret shaft with attached driven gear up through the bushing from the bottom of the unit
until the groove for the E-clip is accessible above the top of the bushing. If the turret motor was not
removed. It may be necessary to rotate the gear slightly to make sure the teeth of the driven gear
mesh with the teeth of the drive gear on the motor shaft.
3. Insert the E-clip into the shaft groove.
4. Replace the turret motor.
5. Pass the turret motor shaft through the hole in the base and push it all the way down till the motor
is flush against the base. DO NOT FORCE THE MOTOR! It may be necessary to rotate the motor
slightly to make sure the teeth of the drive gear on the end of the motor shaft mesh properly with
the teeth of the driven gear.
6. Insert and tighten the two screws, which secure the motor to the base.
7. Pass the connector end of the motor wires through the hole in the base making sure the other
wires passing through the hole are not damaged.
8. If all other work is complete, replace the Main Circuit board (refer to "Main board Connections").
9. Attach the connector on the end of the motor wires to the Main Circuit board.
10. Replace the turret Opto Switch.
11. Insert and tighten the two screws, which secure the turret Opto Switch to the base.
12. Attach the connector on the end of the switch wires to the Main Circuit board.
Light Source (335923-000 [Vis Only], 335902-146S [UV-Vis Only] and 335908
[Spectronic GENESYS 6 Only])
NOTE: There are two possible light sources for the Spectronic GENESYS 10
Spectrophotometer: xenon (UV-Visible) or tungsten (Visible only). Each type is unique to
a specific instrument they cannot be interchanged. The Vis lamp is supplied as an
assembly already aligned on its mounting brackets and is replaced as a complete
assembly. The UV Lamp is supplied alone and requires optical alignment after replacing.
5-17
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