(3)
Remove the access panels:
(Ref. TASK 53-35-13-000-002).
(Ref. TASK 25-54-12-000-001).
(a)
FOR 15HM
-191BB and
-131PW.
(b)
FOR 16HM
-192FB and
-132PW.
4. Procedure
_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 21-52-43-991-001-A)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 21-52-43-991-001-B) **ON A/C ALL
Subtask 21-52-43-020-050
A. Removal of the Pack Downstream Check-Valve NOTE : Access to the pack dowstream check-valves must be obtained from
____
both outside and inside the aircraft.
Two persons are recommended for this procedure.
(1)
FOR 15HM
(a)
Remove the clamp (7).
(b)
Remove the nut (12), the bolt (9), the washer (10) and disconnect the bonding strap (11).
(c)
Remove the clamp (2) and disconnect the bellows (1).
(d)
Hold the check valve (6) and remove the bolts (3) and the washers (4).
(e)
Remove the check valve (6) and the gasket (5).
(f)
Put protective covers on the open ends of the check valve (6), the bellows (1) and the flange (8).
(2)
FOR 16HM
(a)
Remove the clamps (27) and (41).
(b)
Remove the nut (34), the bolt (30), the washer (31) and disconnect the bonding straps (32) and (33).
(c)
Remove the nuts (37) and (40) and the washers (36) and (39).
(d)
Hold the duct assembly (29) and remove the bolts (35) and (38).
(e)
Disconnect the tie-rods (43) and (44) and remove the duct assembly (29).
(f)
Remove the O-ring (28).
(g)
Put protective covers on the open ends of the duct assembly (29), the check valve (26) and the flange (42).
1EFF : ALL 1 21-52-43Page 405 1 1 Aug 01/05R 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401/TASK 21-52-43-991-001-A13 (SHEET 1)
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-52-43Page 406 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401/TASK 21-52-43-991-001-A23 (SHEET 2)
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-52-43Page 407 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401/TASK 21-52-43-991-001-A33 (SHEET 3)
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-52-43Page 408 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
INTENTIONALLY BLANK
R 1 1
21-52-43Page 409
1 1 Feb 01/05 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401A/TASK 21-52-43-991-001-B13 (SHEET 1)
1EFF : 301-399, 1 21-52-43Page 410 1 1 Feb 01/05R 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401A/TASK 21-52-43-991-001-B23 (SHEET 2)
R 1EFF : 301-399, 1 21-52-43Page 411 1 1 Feb 01/05 1 1 1CES 1
Pack Downstream Check Valve 15HM (16HM)
Figure 401A/TASK 21-52-43-991-001-B33 (SHEET 3)
R 1EFF : 301-399, 1 21-52-43Page 412 1 1 Feb 01/05 1 1 1CES 1
(h)
Remove the clamps (22) and (23) and disconnect the bellows (21).
(i)
Hold the check valve (26) and remove bolts (24) and the washers (25).
(j)
Remove the check valve (26) and the gasket (5).
(k)
Put protective covers on the open ends of the check valve (26) and the bellows (21).
1EFF : ALL 1 21-52-43Page 413 1 1 Aug 01/05R 1 1 1CES 1
TASK 21-52-43-400-001
Installation of the Pack Downstream Check-Valves 15HM and 16HM
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
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