Installation of the Proximity Switch

TASK 52-36-15-400-003-A
Installation of the Proximity Switch

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 825
ZONE: 826
FIN: 2501MJ
FIN: 2504MJ

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.22 and 0.18 m.daN (19.47 and 15.93 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.06LCG9)	Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.14SBA1)	Textile-Lint free Cotton -
No specific	lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
825	FORWARD CARGO COMPARTMENT DOOR
826	AFT CARGO COMPARTMENT DOOR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
24	O-RING	AIPC 52-36-15-01-080

E. Referenced Information

REFERENCE	DESIGNATION
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-10-00-863-002-A	Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
TASK 29-23-00-860-001-A	Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 29-23-00-860-002-A	Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A	Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 53-22-14-000-001-A	Removal of the Forward Cargo-Compartment Floor-Panels
TASK 53-22-14-400-001-A	Installation of the Forward Cargo-Compartment Floor-Panels
TASK 53-22-14-400-001-A-01	Installation of the Forward Cargo-Compartment Floor-Panels (Alternative Installation Procedure with the Skyflex Option)
TASK 53-42-14-000-001-A	Removal of the Aft Cargo-Compartment Floor-Panels Zone 150
TASK 53-42-14-400-001-A	Installation of the Aft Cargo-Compartment Floor-Panels Zone 150
TASK 53-42-14-400-001-A-01	Installation of the Aft Cargo-Compartment Floor-Panels (Alternative Installation Procedure with the Skyflex Option)
Proximity Switch
FOR [2501MJ] (MAN SEL VALVE-FWD CARGO DOOR)
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 53-22-14-400-001-A	Installation of the Forward Cargo-Compartment Floor-Panels
TASK 53-22-14-400-001-A-01	Installation of the Forward Cargo-Compartment Floor-Panels (Alternative Installation Procedure with the Skyflex Option)
FOR [2504MJ] (MAN SEL VALVE-AFT CARGO DOOR)
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 53-42-14-400-001-A	Installation of the Aft Cargo-Compartment Floor-Panels Zone 150
TASK 53-42-14-400-001-A-01	Installation of the Aft Cargo-Compartment Floor-Panels (Alternative Installation Procedure with the Skyflex Option)

3. Job Set-up
Subtask 52-36-15-865-057-A

A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
122VU	DOORS/CARGO	1MJ	T12
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 52-36-15-860-054-B ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the applicable cargo door is opened and safetied with the actuator safety devices (Ref. AMM TASK 52-30-00-860-003).
(2) Make sure that the necessary floor panel you removed to get access to the applicable manual selector valve is removed (Ref. AMM TASK 53-22-14-000-001) (Ref. AMM TASK 53-42-14-000-001).
(3) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(4) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(5) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(6) Make sure that the WARNING NOTICE(S) is in position:

in the cockpit on the hydraulic section 40VU of the overhead panel,
on the ground service panel of the Yellow hydraulic system.

(7) Make sure that the Textile-Lint free Cotton - (Material No.14SBA1) is below the hydraulic connections of the manual selector valve to collect the hydraulic fluid.
(8) Make sure that the isolation coupling of the power transfer unit is disconnected (Ref. AMM TASK 29-23-00-860-001).

Subtask 52-36-15-860-054-C ** ON A/C NOT FOR ALL

in the cockpit on the hydraulic section 40VU of the overhead panel,
on the ground service panel of the Yellow hydraulic system.

4. Procedure
Subtask 52-36-15-910-051-B

A. Preparation for Installation
(1) Make sure that all the electrical connections are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Aply a layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) on the mating surface of the proximity switch (12) and the valve body (13).
(5) Lubricate the new AIPC 52-36-15-01-080 O-RING (24) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .

Subtask 52-36-15-420-052-B

B. Installation of the Proximity Switch

Proximity Switch

(1) Install the new O-ring (24) and the back-up ring (23) in the valve body (13).
(2) Install the proximity switch (12) on the valve body (13).
(3) TORQUE the proximity switch (12) to between 0.22 and 0.18 m.daN (19.47 and 15.93 lbf.in )

.
(4) Remove the blanking caps from the electrical connector (11) and from the receptacle of the proximity switch (12).
(5) Connect the electrical connector (11) to the proximity switch (12).
(6) Safety the proximity switch (12) with lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.).

Subtask 52-36-15-860-055-A

C. Preparation for the Test
(1) Remove the warning notices from the ground service panel and the overhead panel of the cockpit.
(2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(3) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(4) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
(5) Remove the actuator safety locks from the applicable cargo door.

Subtask 52-36-15-865-058-A

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
122VU	DOORS/CARGO	1MJ	T12
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 52-36-15-710-050-B

E. Operational Test
(1) Open and close the applicable cargo door hydraulically (Ref. AMM TASK 52-30-00-860-001) several times to make sure that the proximity switch operates satisfactory.
(2) Open the cargo door when the operational test is completed.
(3) Examine the manual selector valve (15) to make sure that there are no leaks .

5. Close-up
Subtask 52-36-15-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.

(2) FOR [2501MJ] (MAN SEL VALVE-FWD CARGO DOOR)
(a) Install the floor panel you removed to get access to the manual selector valve (Ref. AMM TASK 53-22-14-400-001).
(b) Close the FWD cargo door (Ref. AMM TASK 52-30-00-860-002).

(3) FOR [2504MJ] (MAN SEL VALVE-AFT CARGO DOOR)
(a) Install the floor panel you removed to get access to the manual selector valve (Ref. AMM TASK 53-42-14-400-001).
(b) Close the AFT cargo door (Ref. AMM TASK 52-30-00-860-002).

Subtask 52-36-15-410-051-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.

(2) FOR [2501MJ] (MAN SEL VALVE-FWD CARGO DOOR)
(3) Install the floor panel you removed to get access to the manual selector valve (Ref. AMM TASK 53-22-14-400-001).
(4) Close the FWD cargo door (Ref. AMM TASK 52-30-00-860-002).

(5) FOR [2504MJ] (MAN SEL VALVE-AFT CARGO DOOR)
(6) Install the floor panel you removed to get access to the manual selector valve (Ref. AMM TASK 53-42-14-400-001).
(7) Close the AFT cargo door (Ref. AMM TASK 52-30-00-860-002).

[Rev.10 from 2021] 2026.04.02 06:28:12 UTC