AirComm Corporation Bell 407 Air Conditioner Instructions for Continued Airworthiness User Manual

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
Revision 11  Page 54 
 
11. REMOVAL,  INSTALLATION/  REPLACEMENT  OF  BY-PASS  VALVE 
ASSEMBLY 
 
REMOVAL 
A. Remove  the  aft  baggage  compartment  closeout  panel,  to  access  refrigerant 
plumbing. 
 
B. It will be necessary to evacuate (discharge) the refrigerant from the system to 
remove  or  replace  the  by-pass  valve.  Instructions  for  servicing  of  the  system 
are found in CHAPTER 6 Servicing. 
 
CAUTION 
Refrigerant servicing should be...

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
Revision 11  Page 55 
F. Reinstall the aft baggage compartment closeout panel. 
 
12. REMOVAL,  INSTALLATION  /  REPLACEMENT  OF  AFT  EVAPORATOR 
BLOWER ASSEMBLY 
 
 REMOVAL 
CAUTION 
 It is recommended that the battery and external power be disconnected before 
starting work. 
 
A. Remove the access panel on the roof of the baggage compartment. 
 
B. Remove  the  (4)  four  AN525-10R6  Screws,  and  (4)  four  AN960-10L  Washers 
 that attach the blower...

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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allow the Condenser Scoop Assembly to pivot on the forward hinged support 
plate. 
 
CAUTION 
Be sure to support this assembly when removing the attaching hardware to 
prevent damage to the Condenser Scoop Assembly, or the aircraft. 
 
B. Remove the (6) AN525-10R6 Screws that attach the forward hinge support 
plate to the aircraft belly panel. 
 
C. Disconnect the Molex Connector that attaches the power wires from the 
Condenser Scoop...

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 20:  Compressor Drive Pulley installation – looking inboard from aircraft 
left 
Driveshaft Installation: Aircraft S/N 53001 – 53442 with Air Comm Air Conditioner System installed. 
   

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 21:  Compressor Drive Pulley Installation – Looking inboard from aircraft 
left 
Driveshaft Installation: Aircraft S/N 53443 and ON, with Air Comm Air Conditioner System installed. 
(The 407-040-303-111 Fan Shaft Configuration can be achieved by removing the 407-340-002-101 Weight from the 
407-404-303-113 Shaft). 
   

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 22:  Driveshaft Installation – Looking inboard from aircraft left 
Driveshaft Installation: Aircraft S/N 53443 and ON, without Air Comm Air Conditioner System Installed. 
   

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 23:  Drive pulley washer stack up configuration -1A  

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 24:  Drive pulley washer stack up configuration -1B 
  

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 25:  Drive pulley washer stack up configuration -2  

AIR CONDITIONER SERVICE MANUAL 407EC-200M-2 
 
 
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Figure 26:  Drive pulley washer stack up configuration -3