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![]() HEATER CONTROL PANEL REPLACEMENT 
This task covers: 
a. Removal b. Cleaning/Inspection c. Installation 
Equipment Condition: 
Tools and Special Equipment: 
Shop Equipment, SC 4910-95-CL-A72 
Reference 
Condition Description 
TOOI Kit, SC 5180-90-CL-N26 
Page 2-28 
Air System Drained 
Materials/Parts: 
Page 2-29 
Batteries Disconnected 
Appendix C, Item 8 
Compound, Pipe 
Sealing 
REMOVE TWO HEATER CONTROL KNOBS (1) AND SIX SCREWS (2) AND PULL PANEL (3) OUT 
1. 
OF DASHBOARD. 
2. 
REMOVE FIBER OPTIC LABEL (4). 
NOTE 
Tag all tubes and connectors prior to removal to aid in installation. 
3. 
PRESS THREE PLASTIC DISCS (5) AND DISCONNECT THREE TUBES (6) FROM AIR SWITCH (7). 
4. 
DISCONNECT THREE FITTINGS (8), HOSE (9), AND THREE CONNECTORS (10). 
5. 
LOOSEN FOUR SETSCREWS (11) AND REMOVE TWO KNOBS (12), TWO NUTS (13), FAN SPEED 
SWITCH (14), WIPER VALVE (15), AND LAMP HOLDER (16). 
6. 
REMOVE TWO CONNECTORS (17) AND ELBOW (18) FROM WIPER VALVE (15). 
7. 
REMOVE AIR SWITCH (7), HEATER PANEL (19), AND LABEL HOLDER (20) FROM PANEL (3). 
CLEANING/lNSPECTION 
Clean and inspect all parts in accordance with Chapter 2. 
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