Attachment 2-N55 ACM Pictures and Instructions.pdf

fi>]Learjetl

FIA LEARJET 60

PRESSURE REGULATOR FILTER - MAINTENANCE PRACTICES

1. Removal/Installation

NOTE: • The pressure regulator filter must be removed and cleaned in accordance with the current inspection intervals specified in Chapter 5 in the basic Learjet 60 Maintenance Manual.

• Refer to 21-50-00 for illustrations pertaining to the removal and installation of part or all of the Environmental Control System.

• While ducts are disassembled, cover all open ends to prevent contaminants from entering.

• Upon removal of environmental control system components, retain all old gaskets, seals, 0-rings, etc., for identification pmposes. Do not reuse, discard after installation is com plete.

A. Remove Pressure Regulator Filter (See Figure 201.)

(1) Open tailcone access door.

(2) Remove electrical power from aircraft and disconnect both battery quick-disconnects.

(3} Remove conditioned air manifold as follows:

(a) Disconnect electrical connector (D33) from temperature sensor (MMSO).

(b) Remove insulation blanket and coupling securing LH cockpit air duct to conditioned air manifold.

(c) Remove insulation blanket and coupling securing AFIS rack duct <D to conditioned air mani fold.

(d) Remove insulation blanket and coupling securing lli cabin air duct to conditioned air mani fold .

(e) Remove insulation blanket and coupling securing conditioned air manifold to water separa tor and remove conditioned air manifold from aircraft.

(4) Remove coupling securing AFIS rack duct (i) to AFIS rack duct ® and remove AFIS rack duct <D from aircraft.

(5) Remove aft battery from ~rcraft. (Refer to 24-31-01, Removal/Installation)

(6) Disconnect electrical connector (RP1440) from remote indicator panel. (Refer to 31-64-01, Remov al/Installation.)

(7) Remove attaching parts securing aft battery support tray and remove support tray, with remote indicator panel, from aircraft. (Refer to 24-31-01, Removal/Installation.)

(8) Remove air cycle machine (ACM) flow control valve (MM52) as follows:

(a) Disconnect electrical connector (D32) from flow control valve (MM52).

(b) Remove insulation blanket from precooler duct assembly. I

(c) Remove coupling and E-seal securing aft flow control valve duct to ACM flow control valve.

(d) Remove coupling and E-seal securing ACM flow control valve to precooler duct assembly.

(e) Remove attaching parts securing forward support rod assembly to clip G) on flow control valve.

(£) Remove attaching parts securing outboard support rod assembly to clip ® on flow control valve.

(g) Remove attaching parts securing aft support rod assembly to clamp on flow control valve.

(h) Remove flow control valve.

(i) Remove attaching parts securing support rod bracket to ACM and remove bracket and sup port rod assemblies from aircraft .

EFFECTIVITY: ALL 29-00-01

Page201

Apr29/96 MM-128

I ii Learjet I

FIA LEARJET60

(9) Remove water separator as follows: •.

(a) Disconnect water injection tube from water separator.

(b) Remove attaching parts securing LH water separator duct to water separator.

(c) Remove attaching parts securing water separator support rod to water separator.

(d) Remove attaching parts securing water separator to bracket at frame 41 and remove water separator from aircraft.

(e) Remove coupling securing LH water separator duct to RH water separator duct and remove

LH water separator duct from aircraft.

(f) Remove attaching parts securing water separator duct support rod to RH water separator duct.

(g) Remove coupling securing RH water separator duct to ACM and remove RH water separator duct from aircraft.

(10) Loosen clamp connecting forward end of cooling air flex duct to ACM cooling air transition duct assembly.

(11) Loosen clamp connecting aft end of cooling air flex duct to precooler and remove cooling air flex duct from aircraft.

(12) Loosen clamp securing ACM cooling air transition duct to ACM sleeve.

(13) .Loosen clamp securing ACM cooling air transition duct to transition duct support and remove

ACM cooling air transition duct from aircraft.

(14) Remove coupling securing aft flow control valve duct to forward flow control valve duct assem bly and remove aft flow control valve duct from aircraft.

(15) Remove coupling securing bypass valve duct to forward flow control valve duct assembly.

(16) Remove coupling securing forward flow control valve duct assembly to ACM and remove for ward flow control valve duct assembly from aircraft.

(17) Remove attaching parts securing ACM compressor outlet duct assembly to ACM and remove duct assembly.

(18} Remove attaching parts securing ACM compressor inlet duct assembly to ACM and remove duct .-.

assembly.

(19} Remove attaching parts securing ACM turbine inlet duct assembly to ACM and remove duct as sembly.

(20) Remove attaching parts securing ACM turbine bypass duct assembly to ACM and remove duct assembly.

(21) Disconnect tube from anti-ice modulating valve (MM54).

(22) Disconnect electrical connector (D35) from anti-ice modulating valve (MM54).

(23) Remove attaching parts securing anti-ice modulating valve (MM54) to ACM and remove valve.

(24) Disconnect electrical connector (D31) from ACM bypass shutoff valve (MM55).

(25) Remove attaching parts securing ACM bypass shutoff valve (MM55) to ACM and remove valve.

(26) Disconnect electrical connector (D30) from ACM bypass flow control valve (MM53).

(27) Remove coupling securing ACN bypass flow control valve (MM53) to ACM precooler duct as sembly.

(28} Remove attaching parts securing strap to clamp on ACM bypass flow control valve (MM53) and bracket on ACM and remove ACM bypass flow control valve (MM53) from aircraft.

NOTE: Do not remove clamp from valve or bracket from ACM.

(29) Remove coupling securing LH cabin air duct to RH cabin air duct and remove LH cabin air duct from aircraft.

(30) Remove coupling securing LH cockpit air duct to RH cockpit air duct and remove LH cockpit conditioned air duct from aircraft.

(31) Remove coupling securing temperature control valve duct to temperature control valve manifold and remove duct from aircraft.

• EFFECTIVTIY: ALL 29-00-01

Page202

FIA LEARJET 60

MAINTENANCE MANUAL SUPPLEMENT FOR FAA

(32) Remove couplings securing cockpit air temperature control valve (B26) and cabin air tempera ture control valve (B27) to temperature control valve manifold and remove temperature control valve manifold from aircraft.

(33) Disconnect servo air tube G) from aft servo air pressure regulator and servo air tube ®· Remove servo air tube CD from aircraft.

(34) Remove servo air tube located between aft servo air pressure regulator and ACM.

(35) Remove coupling securing ACM precooler duct assembly to ACM precooler.

(36) Remove insulation blanket and coupling securing APU bleed air duct CD to ACM precooler.

(37) Remove attaching parts securing exhaust flex duct to ACM precooler.

(38) Remove attaching parts securing ACM precooler to precooler support and remove ACM precool er from aircraft.

(39) Remove insulation blanket and coupling securing APU bleed air duct CD to APU bleed air duct

® and remove APU bleed air duct© from aircraft.

(40) Remove insulation blanket and coupling securing APU bleed air duct ® to APU bleed air duct

@ and remove APU bleed air duct® from aircraft.

(41) Disconnect electrical connector (D61) from pressure switch (MM61).

( 42) Remove attaching parts securing pressure switch to clip on Stringer 8.

(43) Remove pressure switch tube from APU bleed air duct @.

(44) Remove insulation blanket and coupling securing APU bleed air duct@ to ECS bleed air mani fold.

(45) Remove insulation blanket and coupling securing APU bleed air duct @ to APU load control valve (MM14).

(46) Remove attaching parts securing APU bleed air support rods to APU bleed air duct@and re move APU bleed air duct@ from aircraft.

(47) Remove attaching parts securing water injection tube to inlet plenum and remove water injection tube from aircraft.

(48) Remove attaching parts securing ACM turbine to ACM housing and carefully remove turbine .

(49) Remove coupling securing positive vent port flex duct to plenum.

(50) Remove coupling securing windshield anti-ice flex duct to plenum.

(51) Disconnect ACM drain lines from ACM. (Refer to 21-51-05.)

(52) Remove attaching parts securing lower forward support rod assembly to anchor point on ACM.

(53) Remove attaching parts securing lug and anchor to bottom of ACM. Disconnect rod assembly from frame 39A.

(54) Remove attaching parts securing LH upper forward and LH upper aft rod assemblies to ACM. I

CAUTION: USE CAUTION TO ENSURE THAT THE RAM AIR FLEX DUCT IS NOT DAM-

AGED DURING REMOVAL OF THE AIR CYCLE MACHINE.

(55) Loosen clamp securing ram air flex duct to plenum. I

(56) While supporting the ACM housing, loosen RH forward and RH aft hanger bolts.

(57) While ensuring that plenum inlet slides out of ram air flexible connect duct, slowly lower ACM housing as far as possible.

(58) Remove attaching parts and plenum assembly from aircraft.

(59) Remove RH forward and RH aft hanger bolts from ACM housing and remove housing from air craft.

(60) Disconnect two (2) electrical connectors (D13 and D14) from APU load control valve (MM14).

CAUTION: CARE SHALL BE TAKEN TO PREVENT FOREIGN OBJECTS FROM FALLING I

INTOAPU.

(61) Remove coupling1 securing APU load control valve (MM14) to APU valve adapter and remove APU load control valve (MM14) from aircraft.

EFFECTIVITY: ALL 29-00-01

Page203

FIA LEARJET 60

MAINTENANCE MANUAL SUPPLEMENT FOR FAA

(62) Remove RH cockpit air duct as follows:

(a) Disconnect electrical comector (P437) from cockpit air temperature control valve (B26).

(b) Remove insulation blanket from coupling securing RH cockpit air duct to cockpit air temper ature control valve (B26).

(c) Remove coupling securing RH cockpit air duct to cockpit air temperature control valve (B26) and remove cockpit air temperature control valve (B26) from aircraft.

{d) Remove coupling securing RH cockpit air duct to cockpit air temperature sensor duct.

(e) Remove RH cockpit air duct from aircraft.

(63) Remove RH cabin air duct as follows:

(a) Disconnect electrical comector (P436) from cabin air temperature control valve (B27).

(b) Remove insulation blanket from coupling securing RH cabin air duct to cabin air tempera ture control valve (B27).

(c) Remove coupling securing RH cabin air duct to cabin air temperature control valve (B27) and remove cabin air temperature control valve (B27) from aircraft.

(d) Remove coupling securing RH cabin air duct to cabin air temperature sensor duct.

(e) Remove RH cabin air duct.

(64) Remove cockpit air temperature sensor duct as follows:

(a) Remove attaching parts securing cockpit air temperature sensor duct to tee at end of positive vent port flex duct.

(b) Remove coupling securing cockpit air temperature sensor duct to cabin air duct forward of frame 39.

(c) Remove cockpit air temperature sensor duct from aircraft.

(65) Remove cabin air temperature sensor duct as follows:

(a) Remove clamp securing cabin air temperature sellSOr duct to cabin conditioned air manifold assembly.

(b) Remove cabin air temperature sensor duct from aircraft.

(66) Disconnect bleed air line and seal from pressure regulator filter.

(67) Remove clamp securing filter to structure.

(68) Remove filter from pressure regulator and C>ring from filter.

B. Install Pressure Regulator Filter (See Figure 201.)

N01E: Directional arrow tape is installed on the pressure regulator filter connecting tubing or equipment. The directional arrow of the pressure regulator filter must point in the same flow direction as arrow on adjacent tape.

(1) Check condition of 0-rings and replace if necessary.

(2) Install (>ring and pressure regulator filter on pressure regulator.

(3) Install new fitting seal and connect bleed air line to filter.

NOTE: It is permissible to install seal fittings in the hydraulic plumbing to eliminate small leaks.

Use AP50A-(X) (tubing dash number size) fitting seals on all 37° flared tube fittings. Do not use seals on unions that attach to crosses. Use APSON-(X) on steel line or hose con nections. Install new fitting seals between fittings before installation. Never reuse a fit ting seal.

(4) Install clamp on filter and secure clamp to structure.

EFFECTNITY: ALL 29-00-01

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FIA LEARJET 60

(32) Remove couplings securing cockpit air temperature control valve (B26) and cabin air tempera ture control valve (B27) to temperature control valve manifold and remove temperature control valve manifold from aircraft.

(33) Disconnect servo air tube © from aft servo air pressure regulator and servo air tube @. Remove servo air tube © from aircraft.

(34) Remove servo air tube located between aft servo air pressure regulator and AOvI.

(35) Remove coupling securing ACM precooler duct assembly to ACM precooler.

(36) Remove insulation blanket and coupling securing APU bleed air duct G) to ACM precooler.

(37) Remove attaching parts securing exhaust flex duct to ACM precooler.

(38) Remove attaching parts securing ACM precooler to precooler support and remove ACM precool er from aircraft.

(39) Remove insulation blanket and coupling securing APU bleed air duct (i) to APU bleed air duct

® and remove APU bleed air duct© from aircraft.

(40) Remove insulation blanket and coupling securing APU bleed air duct @ to APU bleed air duct

® and remove APU bleed air duct© from aircraft.

(41) Disconnect electrical connector (061) from pressure switch (MM61).

(42) Remove attaching parts securing pressure switch to clip on Stringer 8.

(43) Remove pressure switch tube from APU bleed air duct ®·

(44) Remove insulation blanket and coupling securing APU bleed air duct ® to ECS bleed air mani fold.

{45) Remove insulation blanket and coupling securing APU bleed air duct ® to APU load control valve (MM14).

{46) Remove attaching parts securing APU bleed air support rods to APU bleed air duct @ and re move APU bleed air duct® from aircraft.

(47) Remove attaching parts securing water injection tube to inlet plenum and remove water injection tube from aircraft.

(48) Remove attaching parts securing ACM turbine to ACM housing and carefully remove turbine .

(49) Remove coupling securing positive vent port flex duct to plenum.

(50) Remove coupling securing windshield anti-ice flex duct to plenum.

(51) Disconnect ACM drain lines from ACM. (Refer to 21-51-05.)

(52) Remove attaching parts securing lower forward support rod assembly to anchor point on ACM.

(53) Remove attaching parts securing lug and anchor to bottom of ACM. Disconnect rod assembly from frame 39A.

(54) Remove attaching parts securing LH upper forward and LH upper aft rod assemblies to ACM. I

CAUTION: USE CAUTION TO ENSURE THAT 1HE RAM AIR FLEX DUCT IS NOT DAM-

AGED DURING REMOVAL OF THE AIR CYCLE MACHINE.

(55) Loosen clamp securing ram air flex duct to plenum. I

(56) While supporting the ACM housing, loosen RH forward and RH aft hanger bolts.

(57) While ensuring that plenum inlet slides out of ram air flexible connect duct, slowly lower ACM housing as far as possible.

(58) Remove attaching parts and plenum assembly from aircraft.

(59) Remove RH forward and RH aft hanger bolts from ACM housing and remove housing from air craft.

(60) Disconnect two electrical connectors (D13 and D14) from APU load control valve (MM14).

CAUTION: CARE SHALL BE TAKEN TO PREVENT FOREIGN OBJECTS FROM FALLING I

INTOAPU.

(61) Remove coupling securing APU load control valve (MM14) to APU valve adapter and remove APU load control valve (MM14) from aircraft .

EFFECTIVITY: ALL 29-00-01

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FIA LEARJET 60

(62) Remove RH cockpit air duct as follows:

(a) Disconnect electrical connector (P437) from cockpit air temperature control valve (B26).

(b) Remove insulation blanket from coupling seeming RH cockpit air duct to cockpit air temper ature control valve (B26).

(c) Remove coupling securing RH cockpit air duct to cockpit air temperature control valve (B26) and remove cockpit air temperature control valve (B26) from aircraft.

(d) Remove coupling securing RH cockpit air duct to cockpit air temperature sensor duct.

(e) Remove RH cockpit air duct from aircraft.

(63) Remove RH cabin air duct as follows:

(a) Disconnect electrical connector (P436) from cabin air temperature control valve (B27).

(b) Remove insulation blanket from coupling securing RH cabin air duct to cabin air tempera ture control valve (B27).

(c) Remove coupling securing RH cabin air duct to cabin air temperature control valve (B27) and remove cabin air temperature control valve (B27) from aircraft.

(d) Remove coupling securing RH cabin air duct to cabin air temperature sensor duct.

(e) Remove RH cabin air duct.

(64) Remove cockpit air temperature sensor duct as follows:

(a) Remove attaching parts securing cockpit air temperature sensor duct to tee at end of positive vent port flex duct.

(b) Remove coupling securing cockpit air temperature sensor duct to cabin air duct forward of frame 39.

(c) Remove cockpit air temperature sensor duct from aircraft .

. (65) Remove cabin air temperature sensor duct as follows:

(a) Remove clamp securing cabin air temperature sensor duct to cabin conditioned air manifold assembly.

(b) Remove cabin air temperature sensor duct from aircraft.

(66) Disconnect bleed air line and seal from pressure regulator filter.

(67) Remove clamp securing filter to structure.

(68) Remove filter from pressure regulator and 0-ring from filter.

B. Install Pressure Regulator Filter (See Figure 201.)

NOTE: Directional arrow ·tape is installed on the pressure regulator filter connecting tubing or equipment. The directional arrow of the pressure regulator filter must point in the same flow direction as arrow on adjacent tape.

(1) Check condition of 0-rings and replace if necessary.

(2) Install 0-ring and pressure regulator filter on pressure regulator.

(3) Install new fitting seal and connect bleed air line to filter.

(4) Install damp on filter and secure clamp to structure.

EFFECTIVITY: ALL 29-00-01

Apr 29/96 MM-128

[!] Learjet I

FIA LEARJET 60

CAUTION: • UPON INSTALLATION OF ENVIRONMENTAL CONTROL SYSTEM

COMPONENTS, REPLACE ALL OLD GASKETS, SEALS, 0-RINGS, ETC.

WITH NEW ONES. REPLACE ANY SPACERS REMOVED, AS REQUIRED.

• ENSURE THAT ALL DUCTS AND COMPONENTS ARE CLEAR PRIOR

TO ASSEMBLY.

• WHEN INSTALLING THE ENVIRONMENTAL CONTROL SYSTEM,

CARE SHALL BE TAKEN TO ENSURE TiiAT ALL DUCTS AND VALVES

MATE PROPERLY. IMPROPER ALIGNMENT COULD CAUSE LEAKS OR

DAMAGE TO DUCTS OR VALVES WHEN COUPLINGS ARE TIGHT

ENED.

• INSTALLATION OF THE ENVIRONMENTAL CONTROL SYSTEM RE

QUIRES INSTALLATION OF SEVERAL DIFFERENT TYPES AND SIZES

OF COUPLINGS. USE EXTREME CARE TO ENSURE THAT COUPLINGS

ARE INSTALLED AT THEffi CORRECT LOCATION. FAILURE TO DO SO

COULD RESULT IN DAMAGE TO COUPLING OR DUCT FLANGE OR

BOTH.

(5) Install cabin air temperature sensor duct as follows:

(a) Position cabin air temperature sensor duct at its appropriate location in aircraft

(b) Install clamp securing cabin air temperature sensor duct to cabin conditioned air manifold assembly.

(6) Install cockpit air temperature sensor duct as follows:

(a) Position cockpit air temperature sensor duct at its appropriate location in aircraft.

(b) Install coupling securing cockpit air temperature sensor duct to cockpit air duct forward of frame 39.

(c) Install attaching parts securing cockpit air temperature sensor duct to tee at end of positive I vent port flex duct_

(7) Install RH cabin air duct as follows:

(a) Position RH cabin air duct at its appropriate location in aircraft.

{b) Install coupling securing RH cabin air duct to cabin air temperature sensor duct.

(c) Position cabin air temperature control valve (B27) to RH cabin air duct and install coupling. 1 (d) Install insulation blanket over coupling securing RH cabin air duct to cabin air temperature control valve (B27).

(e) Connect electrical connector (P436) to cabin air temperature control valve (B27)_

(8) Install RH cockpit air duct as follows:

(a) Install RH cockpit air duct at its appropriate location in aircraft.

(b) Install coupling securing RH cockpit air duct to cockpit air temperature sensor duct.

(c) Position cockpit air temperature control valve (B26) to RH cockpit air duct and install I coupling.

(d) Install insulation blanket over coupling securing RH cockpit air duct to cockpit air tempera ture control valve (B26).

(e) Connect electrical connector (P437) to cockpit air temperature control valve (B26).

(9) Position APU load control valve (MM14) to APU valve adapter and install coupling.

(10) Connect two electrical connectors (D13 and D14) to APU load control valve (MM14)_ I

(11) Loose assemble APU bleed air duct @ to aircraft structure with bleed air support rods .

EFFECTIVITY: ALL 29-00-01

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(12) Assemble APU bleed air duct @ to APU load control valve (MM14) and install coupling and in-sulation blanket.

(13) Position ECS bleed air duct to APU bleed air duct @ and install coupling and insulation blanket.

(14) Cap open end of APU bleed air duct@.

(15) Perform Environmental Control System (ECS) Bleed Air Leak Check. (Refer to Step 2, Inspec-tion/Check.)

(16) Remove cap from APU bleed air duct @.

(17) Ensure heat blankets are installed at all bleed air joints.

(18) Position air cycle machine (ACM) housing in aircraft and install RH forward and RH aft hanger bolts. Do not tighten bolts at this time.

(19) Position plenum to top of ACM and secure in place with attaching parts.

NOTE: Ensure APU bleed air support brackets are installed at their appropriate location on the front of the plenum.

CAUTION: USE CAUTION TO ENSURE THAT RAM AIR FLEX DUCT IS NOT DAM

AGED DURING INSTALLATION OF THE AIR CYCLE MACHINE.

(20) While rotating the ACM housing up into place, carefully insert plenum inlet into ram air flexible connect duct.

(21) Position LH upper forward and LH upper aft rod assemblies to ACM and secure in place with at-taching parts.

(22) Tighten RH forward and RH aft hanger bolts.

(23) Position lug and anchor to bottom of ACM and secure in place with attaching parts.

(24) Position lower forward support rod assembly to anchor point on ACM and secure in place with attaching parts.

(25) Install clamp securing ram air flex duct to plenum inlet. •

(26) Connect ACM drain lines to ACM.

(27} Position windshield anti-ice flex duct to plenum and install coupling.

(28} Position positive vent port flex duct to plenum and install coupling.

(29) Position ACM turbine to ACM housing and secure in place with attaching parts.

NOTE: To install turbine it will be necessary to move it aft along the LH side of taikone, around the control cables and then forward into the ACM housing.

(30) Position water injection tube to plenum and secure in place with attaching parts.

(31) Assemble pressure switch tube to APU bleed air duct @.

(32) Position pressure switch (MM61) to clip on Stringer 8 and secure with attaching parts.

(33) Connect electrical connector (D61) to pressure switch (MM61).

(34) Tighten attaching parts securing APU bleed air duct @ support rods to aircraft structure.

(35) Position APU bleed air duct ® to APU bleed air duct @ and install coupling and insulation blan ket.

(36) Position APU bleed air duct G) to APU bleed air duct @ and install coupling and insulation blan-ket. ·

(37) Position servo air tube between aft servo air regulator and ACM, and secure in place with attach ing parts.

(38) Position servo air tube© to aft servo air pressure regulator and servo air tube@, and secure in place with attaching parts.

EFFECTIVITY: ALL 29-00-01

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(39) Position ACM precooler to precooler support and secure in place with attaching parts .

(40) Position exhaust flex duct to ACM precooler and secure in place with attaching parts .

(41) Position APU bleed air duct (D to ACM precooler and secure in place with attaching parts.

(42) Position aft end of ACM cooling air flex duct to ACM precooler and secure in place with attach- I ingparts.

(43) Position ACM precooler duct assembly to ACM precooler and secure in place with coupling.

(44) Cap both open ends of ACM precooler duct assembly.

(45) Perform Environmental Control System (ECS) Bleed Air Leak Check. (Refer to Step 2, Inspec-tion/Check.)

(46) Remove caps from ACM precooler duct assembly.

(47) Ensure heat blankets are installed at all bleed air joints. I

(48) Position temperature control valve manifold at its appropriate location in aircraft.

{49) Position cockpit air temperature control valve (B26} and cabin air temperature control valve (B27) to temperature control valve manifold and install couplings.

{50) Position temperature control valve duct to temperature control valve manifold and install coupling.

(51) Position LH cockpit air duct to RH cockpit air duct and install coupling.

(52) Position LH cabin air duct to RH cabin air duct and install coupling. _ {53) Position strap to clamp on ACM bypass flow control valve (MM53) and bracket on ACM and se cure in place with attaching parts.

(54} Position precooler duct assembly to ACM bypass flow control valve (MM53) and install coupling.

(55) Connect electrical connector (D30) to ACM bypass flow control valve (MM53).

(56) Position ACM bypass shutoff valve (MM55) to ACM and secure in place with attaching parts.

(57) Connect electrical connector (D31) to ACM bypass shutoff valve (MM55).

(58) Position ACM anti-ice modulating valve (MM54) to ACM and secure in place with attaching parts .

(59) Connect electrical connector (D35) to ACM anti-ice modulating valve (MM54).

(60) Connect tube to ACM anti-ice modulating valve (MM54).

(61) Position ACM turbine inlet duct assembly to ACM and secure in place with attaching parts.

(62) Position ACM turbine bypass duct assembly to ACM and secure in place with attaching parts.

(63) Position ACM compressor inlet duct assembly to ACM and secure in place with attaching parts. 1 (64) Position ACM compressor outlet duct assembly and ACM bypass check valve (with flow arrow pointing down) to ACM and secure in place with attaching parts.

(65) Position forward flow control valve duct assembly to ACM and install coupling.

(66) Position bypass valve duct to forward flow control valve duct assembly and install coupling.

(67) Position aft flow control valve duct to forward flow control valve duct assembly and install coupling.

(68) Position ACM cooling air transition duct in clamp attached to bracket on frame 40. Do not tighten I clamp at this time.

(69) Position ACM cooling air transition duct to ACM sleeve and install two clamps. Tighten clamp at frame 40.

{70) Position forward end of cooling air flex duct to ACM cooling air transition duct assembly and in stall clamp.

(71) Position aft end of cooling air flex duct to ACM precooler and install clamp .

EFFECTIVITY: ALL 29-00-01

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(72) Install water separator as follows:

NOTE: RH and LH water separator ducts can be reversed on assembly. Use care to ensure that they are properly installed.

(a) Position RH water separator duct to ACM and secure with coupling.

(b) Position water separator duct support rod to RH water separator duct and secure in place with attaching parts.

(c) Position LH water separator duct to RH water separator duct and install coupling.

(d) Position water separator to bracket at frame 41 and secure in place with attaching parts.

(e} Position water separator support rod to water separator and secure in place with attaching parts. Install safety wire as required.

(f) Position LH water separator duct to water separator and secure in place with attaching parts.

{g) Connect water injection tube from water separator.

(73) · Install ACM flow control valve (l'o.1M.52) as follows:

(a) Position support rod bracket with support rod assemblies to ACM and secure in place with attaching parts.

(b) Position ACM flow control valve (MM52) in aircraft.

(c) Position aft support rod assembly to clamp on flow control valve and secure in place with at taching parts.

(d) Position outboard support rod assembly to clip @ on flow control valve and secure in place with attaching parts.

(e) Position forward support rod assembly to clip © on flow control valve and secure in place with attaching parts.

(f) Install E-seals in each end of flow control valve.

(g) Position aft flow control valve duct to ACM flow control valve (MM52) and install coupling.

(h) Position flow control valve to precooler duct assembly and install coupling. •

(i) Install insulation blanket around joint between ACM flow control valve (MM52) and precool-er duct assembly.

(j) Connect electrical connector (D32) to flow control valve (MM52).

(74) Position aft battery support tray, with remote indicator panel, in aircraft and secure in place with attaching parts. (Refer to 24-31-01, Removal/Installation.)

(75) Connect electrical connector (RP1440) to remote indicator panel. (Refer to 31-64-01, Removal/ Installation.)

(76) Install aft battery in aircraft. (Refer to 24-31-01, Removal/Installation.)

(77) Posi ti.on AFIS rack duct G) to AFIS rack duct ® and install coupling.

(78) Install conditioned air manifold as follows:

(a) Position conditioned air manifold to water separator and install coupling and insulation blanket.

(b) Position LH cabin air duct to conditioned air manifold and install coupling and insulation blanket.

(c) Position AFIS rack duct © to conditioned air manifold and install coupling and insulation blanket.

(d) Position LH cockpit air duct to conditioned air manifold and install coupling and insulation blanket.

(e) Connect electrical connector (D33) to temperature sensor (MM50).

(79) Perform Environmental Control System (ECS) Leak Check. (Refer to step 2, Inspection/Check.)

(80) Connect both battery quick-disconnects and restore electrical power to aircraft.

EFFECTIVTIY: ALL 29-00-01

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(81) Perform Functional Test of Environmental Control System (ECS) Electrical System. (Refer to step 3, Adjustment/Test.)

(82) Perform Functional Test of Enviromnental Control System (ECS) Pneumatic System. (Refer to step 3, Adjustment/Test.)

(83) Perform Operational Test of Environmental Control System {ECS) with Auxiliary Power Unit (APU) as Bleed Air Source. (Refer to step 3, Adjustment/Test.)

(84) Perform Operational Test of Environmental Control System (ECS) with Engines as Bleed Air Source. (Refer to step 3, Adjustment/Test.)

(85) Perform Operational Test of Environmental Control System (ECS) with Engines and APU as Bleed Air Sources. (Refer to step 3, Adjustment/Test.)

(86) Close tailcone access door.

(87) Restore aircraft to normal.

2. Cleaning/Painting A. Clean Pressure Regulator Filter (See Figure 201.)

(1) Clean pressure regulator filter with MEK and thoroughly dry filter with dean dry air .

EFFECTIVTIY: ALL

MM-128

29-00-01 I

Apr29/96

Today: Date and Time Printed: January 12, 2018 08:46

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