R B. Consumable Materials

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R Material No. 06-007 USA SS-G-659
R GRAPHITE POWDER DRY LUBRICANT (Ref. 20-31-00)

R C. Referenced Information

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 12-33-21-618-001 R 12-33-21-618-001 R 24-41-00-861-002 R R 24-41-00-862-002 R R 53-35-13-000-002 R Pre-conditioning through the HP Ground Connection Pre-conditioning with the APU Energize the Aircraft Electrical Circuits from the External Power De-energize the Aircraft Electrical Circuits Supplied from the External Power Removal of the Quick-Release Access Panels from the Belly Fairing Structure

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
R  53-35-13-400-002 Installation of the Quick-Release Access Panels on 
R  the Belly Fairing Structure 
R  CMM 215202 
R  21-52-00-991-016 Fig. 803 
R  3. Job Set-up__________ 
R  Subtask 21-52-00-861-058 
R  A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). 
R  Subtask 21-52-00-865-065 
R  B. Open, safety and tag this(these) circuit breaker(s): 
R  -------------------------------------------------------------------------------
R  PANEL DESIGNATION IDENT. LOCATION 
R  -------------------------------------------------------------------------------
R  FOR 10HM1 
R  122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22 
R  122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21 
R  122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19 
R  122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18 
R  FOR 11HM1 
R  122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 21HH W22 
R  122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 23HH W21 
R  122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 24HH Y21 
R  122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 22HH Y20 
R  Subtask 21-52-00-860-055 
R  C. Aircraft Maintenance Configuration 
R  (1) On the panel 30VU: 
R  (a) Make sure that: 
R  - the APU BLEED pushbutton switch is in the off position (the ON 
R  legend is off) and, 
R  - the ENG 1 BLEED and the ENG 2 BLEED pushbutton switches are in 
R  the off position (the OFF legends are on). 
R  (b) Put a warning notice in position to tell persons not to operate 
R  these pushbutton switches.

R  (2) On the HP ground connector put a warning notice in position to tell 
R  persons not to supply the ground air. 
R  Subtask 21-52-00-010-066 
R  D. Get Access 
R  (1) Remove the access panel (Ref. TASK 53-35-13-000-002). 
R  FOR 10HM1 
R  191KB, 
R  FOR 11HM1 
R  192KB. 
R  (2) Removal of the Compressor Return Duct 
R  (a) Remove the screws (3), the washers (2) and the yoke (1). 
R  (b) Remove the nuts (12), the bolts (8), the spacers (5) and the 
R  yokes (7) together with the shims (6). 
R  (c) Remove the screws (9), the washers (10) and the compressor return 
R  duct (4). 
R  4. Procedure_________ 
R  (Ref. Fig. 803/TASK 21-52-00-991-016) 
R  Subtask 21-52-00-360-050 
R  A. Replacement of the Preformed Packings 
R  (1) Remove the preformed packings (11) and (13) from the compressor 
R  return duct (4). 
R  (2) Clean the preformed packings location grooves on the compressor 
R  return duct (4). 
R  (3) Apply lubricant: 
R  CAUTION : USE ONLY THE SPECIFIED LUBRICANT TO LUBRICATE THE O-RINGS_______ 
R  AND THE PACKINGS. OTHER LUBRICANTS CAN CAUSE SMOKE OR A 
R  SMELL IN THE CABIN WHEN THEY BECOME HOT. 
R  (a) Apply a small quantity of LUBRICANTS (Material No. 06-007) to the 
R  new preformed packings (11) and (13) (Ref. CMM 215202).

R Air Cycle Machine - Compressor Return Duct R Figure 803/TASK 21-52-00-991-016
　
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