R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 21-51-51Page 421 1201-299, 301-302, 1May 01/05 1 1 1CES 1
(b) On the panel 30VU:
1 The APU BLEED pushbutton switch is in the off position (the ON
_
legend is off).
2 The ENG 1 BLEED and the ENG 2 BLEED pushbutton switches are in
_ the off position (the OFF legends are on).
3 The warning notice is in position to tell persons not to
_ operate these pushbutton switches.
(c)
On the HP ground connector the warning notice is in position to tell persons not to supply the ground air.
(d)
the access panels are removed (Ref. TASK 53-35-13-000-002):
R 1_FOR 11HB 191KB and 191BB,
R 2_FOR 8HB 192KB and 191BB.
Subtask 21-51-51-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 11HB
49VU AIR COND/FLOW/CTL &/IND1 1HB D07 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
FOR 8HB 122VU AIR COND/FLOW/CTL AND IND/2 2HB V21 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 21HH W22 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 23HH W21 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 24HH Y21 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 22HH Y20
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4. Procedure_________
R **ON A/C 001-003, 051-054,
(Ref. Fig. 401/TASK 21-51-51-991-001-C)
R **ON A/C 004-049, 055-099, 101-105, 151-158, 201-209,
(Ref. Fig. 401A/TASK 21-51-51-991-001)
R **ON A/C 004-049, 055-099, 101-105, 151-199, 201-299, 301-302,
R Post SB 21-1134 For A/C 004-049,055-099,101-105,151-158,201-209,
(Ref. Fig. 401B/TASK 21-51-51-991-001-D)
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
WARNING : MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK AREA_______ WHEN YOU USE SPECIAL MATERIALS. IF YOU GET ONE OF THESE MATERIALS ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES : -FLUSH IT AWAY WITH A FLOW OF CLEAN WATER FOR BETWEEN 10 AND 15 MINUTES. -GET IMMEDIATE MEDICAL AID IF IRRITATION OCCURS. DO NOT BREATHE THE FUMES FROM THE MATERIAL. DO NOT SMOKE WHEN YOU USE THE MATERIAL. DO NOT USE THE MATERIAL NEAR A FLAME, SPARKS OR SOURCES OF HEAT. THESE MATERIALS ARE DANGEROUS : THEY ARE POISONOUS, FLAMMABLE AND SKIN IRRITANTS.
Subtask 21-51-51-420-054
R A. Installation of the Attachment Fitting (Ref. Fig. 402/TASK 21-51-51-991-003)
R R R WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
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R R (1) Application of Jointing Compound
R R (a) Apply a small amount of SPECIAL MATERIALS (Material No. 05-002) to the fitting (21) and the bushings (6).
(2) Put the fitting (21) in position in the brackets (20) and install the bushings (6), the bolts (5), the washers (4) and the nuts (3).
R **ON A/C 001-003, 051-054,
Subtask 21-51-51-420-051
B. Installation of the Pack Flow-Control Valve
NOTE : Turn flanges or seals when you move them. This will help to____ prevent damage to the associated seals and sliding surfaces of the components.
(1) Remove the protective covers from the pack flow-control valve (17) and the heat exchanger unit connecting-end (15).
(2) Clean the component interface and/or the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Make sure that:
(a) the seal retaining grooves in the sleeve (14) are clean and dry.
(b) the sliding surfaces of the flange (13) and the heat exchanger unit connecting-end (15) are clean and dry.
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