(2)
Connection of the Bleed-Air Joint Ducts at the Engines WARNING : DO NOT TOUCH THE COMPONENT UNTIL IT IS SUFFICIENTLY
_______
COOL TO PREVENT BURNS.
(a)
Remove the protective covers from the open ends of the bleed pressure-regulator valves.
(b)
Connect the bleed-air joint ducts (B) (Ref. TASK 36-11-49-400-042).
NOTE : Make sure that you do the leak check after connection of
____
the bleed-air joint ducts.
R 1EFF : ALL 1 21-00-00Page 275 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 001-003, 051-054,
Subtask 21-00-00-869-056
F. Preparation for the Stage 1 Cleaning of the ECS WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING
_______ SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE. HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING : DO NOT TOUCH THE COMPONENT UNTIL IT IS SUFFICIENTLY
_______
COOL TO PREVENT BURNS.
(1)
Remove the clamps and the sleeve between the condenser 10HM2 and the check valve 15HM.
(2)
Remove the clamps and the sleeve between the condenser 11HM2 and the check valve 16HM duct flange.
(3)
Put the special blanking caps on the open end of the check valve 15HM and on the open end of the check valve 16HM duct flange.
NOTE : Use the removed clamps to secure the blanking caps.
____
(4) Do a check for and make a note of any oil contamination in the condensors.
NOTE : Water condensation can occur in the condensors. This must be
____
ignored.
(5) If oil contamination is found in the condensers you must:
(a)
Remove the cabin recirculation fans 14HG and 15HG (Ref. TASK 21-21-51-000-001).
(b)
Do a check for oil contamination in the interior of the mixer unit.
(c)
Cleaning of the Mixer Unit WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE
_______ THIS/THESE MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
R 1EFF : 001-003, 051-054, 1 21-00-00Page 276 1 1 Aug 01/05 1 1 1CES 1 1 If oil contamination is found you must remove it from the
_ areas that you can get access to with a lint-free cloth and CLEANING AGENTS (Material No. 11-002).
(d) Install the cabin recirculation fans 14HG and 15HG (Ref. TASK 21-21-51-400-001).
(6)
On the AIR COND panel 30VU make sure that:
(a)
The COCKPIT, the FWD CABIN and the AFT CABIN temperature selectors are at the 12 o'clock position.
(b)
The X BLEED selector is at the AUTO position.
(7)
On the CARGO HEAT panel 22VU push the CAB FANS pushbutton switch to the off position (the OFF legend comes on).
(8)
At the ram air outlets:
(a) Put warning notices in position to tell persons not to go near the ram-air outlet flaps.
R **ON A/C 004-049, 055-099, 101-149, 151-199, 201-299, 301-399, 401-499,
Subtask 21-00-00-869-056-A
F. Preparation for the Stage 1 Cleaning of the ECS WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING
_______ SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE. HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING : DO NOT TOUCH THE COMPONENT UNTIL IT IS SUFFICIENTLY
_______
COOL TO PREVENT BURNS.
(1)
Remove the clamps and the sleeve between the condenser 10HM2 and the check valve 15HM.
(2)
Remove the clamps and the sleeve between the condenser 11HM2 and the check valve 16HM duct flange.
(3)
Put the special blanking caps on the open end of the check valve 15HM and on the open end of the check valve 16HM duct flange.
NOTE : Use the removed clamps to secure the blanking caps.
____
(4) Do a check for and make a note of any oil contamination in the condensors.
NOTE : Water condensation can occur in the condensors. This must be
____ ignored.
(5)
If oil contamination is found in the condensers you must:
(a)
Remove the cabin recirculation fans 14HG and 15HG (Ref. TASK 21-21-51-000-001).
(b)
Do a check for oil contamination in the interior of the mixer unit.
(c)
Cleaning of the Mixer Unit WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE
_______
(d)
Install the cabin recirculation fans 14HG and 15HG (Ref. TASK 21-21-51-400-001).
