B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-21-12-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 33-21-12-010-050
 A. Get Access
 (1) Open the cockpit door.
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 Subtask 33-21-12-865-050

 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------

R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 401-499,
 2000VU LIGHT - CABIN ENTRY 308LG J02 **ON A/C 106-149,
 2000VU LIGHT 308LG J02 **ON A/C 301-399,
 2000VU LIGHT - CABIN ENTRY 308LG J04 **ON A/C ALL
 4. Procedure
_________
 Subtask 33-21-12-020-050

 A. Removal of the Limit Switch 310LG
 (Ref. Fig. 401/TASK 33-21-12-991-001)

 (1)
 Remove the screws (11) and the bracket (12) from the cockpit wall (1).

 (2)
 Carefully remove the switch bracket (8) together with the limit switch (3) from the insert of the cockpit wall (1).

 (3)
 Cut and remove the lockwire from the adjustment nut (6) and the lock nut (10).

 (4)
 Remove the lock nut (10) and the serrated washer (9) from the limit switch (3).

 (5)
 Remove the limit switch (3) together with the adjustment nut (6) and the lock washer (7) from the swtich bracket (3).

 (6)
 Disconnect the wires of the cable harness (2) from the limit switch (3). Tag and identify each wire as it is disconnected.

 (7)
 Put blanking caps on the disconnected electrical connectors.

 Cabin Entrance Light Dimming Switch
 Figure 401/TASK 33-21-12-991-001
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 TASK 33-21-12-400-001
 Installation of the Cabin Entrance Light Dimming Switch (310LG)

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific red blanking plugs
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-21-00-710-001 Operational Test of the General Illumination 33-21-12-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 33-21-12-860-050
 A. Aircraft Maintenance Configuration
 (1) Make sure that the cockpit door is opened.
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 Subtask 33-21-12-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------

R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 401-499,
 2000VU LIGHT - CABIN ENTRY 308LG J02 **ON A/C 106-149,
 2000VU LIGHT 308LG J02 **ON A/C 301-399,
 2000VU LIGHT - CABIN ENTRY 308LG J04 **ON A/C ALL
 4. Procedure
_________
 (Ref. Fig. 401/TASK 33-21-12-991-001)
 Subtask 33-21-12-210-050

 A. Visual Inspection
 (1)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (2)
 Clean the component interface and/or the adjacent area.

 (3)
 Do an inspection of the component interface and/or the adjacent area.

 (4)
 Make sure that the wires of the cable harness (2) are in a good condition.

 Subtask 33-21-12-560-050
 B. Preparation of the Limit Switch
 (1)
 Make sure that the roller (5) of the replaced limit switch (3) is turned 90 degrees to the groove.
　
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