Installation of the Engine 2 Hydraulic Suction-Hose

TASK 29-13-49-400-040-A
Installation of the Engine 2 Hydraulic Suction-Hose

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.

CAUTION: DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

ZONE: 210
ZONE: 445
ZONE: 446

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

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CONTAINER 5 L (1.32 USGAL)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 75 and 66.7 lbf.ft (10.17 and 9.04 m.daN )
No specific	Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
No specific	Torque wrench: range to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )
No specific	Torque wrench: range to between 85 and 74.35 lbf.in (0.96 and 0.84 m.daN )
No specific	Torque wrench: range to between 1150 and 1000 lbf.in (13.00 and 11.30 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
No specific	absorbent paper

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
445	ENG 2 FAN COMPARTMENT
446	ENG 2 FAN COMPARTMENT
195BB, 447AL

D. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-13-00-710-002-A	Operational Test of the Yellow Hydraulic System
TASK 29-13-51-860-001-A	Hydraulic Maintenance Procedure after an Engine Installation (with Engine Pump Installed) or after an Engine Pump Installation
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
Hydraulic Suction Hose/Tube Assembly (PRE SB RA32029-7 and PRE SB RA32029-10)
Engine 2 Hydraulic Tubes
Hydraulic Suction Hose/Tube Assembly (PRE SB RA32029-10)
Hydraulic Suction Hose/Tube Assembly (POST SB RA32029-7 and POST SB RA32029-10)

3. Job Set-up
Subtask 29-13-49-860-058-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-10-00-864-002)
(2) Make sure that the Yellow hydraulic reservoir is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:

on the ground service panel 198CB.

(4) Make sure that the WARNING NOTICE(S) is (are) in position on the access door 195BB to tell persons not to pressurize the Yellow hydraulic reservoir.
(5) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the engine 1(2).
(6) Make sure that the fan-cowl door 447AL is open

Subtask 29-13-49-941-075-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:

make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to start the engine.

(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:

in the cockpit, on the HYD section of the overhead panel 40VU.

(4) On the overhead maintenance panel 50VU:

make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.

(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to energize the FADEC 1(2).
(6) Make sure that a CONTAINER 5 L (1.32 USGAL) is below the suction-hose adapter connection to the hydraulic pump.

4. Procedure
Subtask 29-13-49-420-061-A ** ON A/C NOT FOR ALL

A. Installation of the Hydraulic Suction Tube Assembly

PRE SB RA 32029-7
(1) Remove the blanking covers from the hose (5) coupling half and the fluid disconnect panel port.
(2) Connect the hose (5) coupling half to the fluid disconnect panel and tighten the coupling nut by hand.
(3) TORQUE the coupling nut to between 75 and 66.7 lbf.ft (10.17 and 9.04 m.daN )

.
(4) Remove blanking covers from the hose (5) adapter assembly and the hydraulic pump union.
(5) Connect the hose (5) adapter assembly to the hydraulic pump union.
(6) TORQUE the coupling nut to between 75 and 66.7 lbf.ft (10.17 and 9.04 m.daN )

.
(7) Install the suction hose (5) on the upper, upper mid and lower mid support-brackets.

CAUTION: BE CAREFUL WHEN YOU INSTALL THE CLAMP. MAKE SURE THAT THE TWO HALF-CUSHIONS ARE IN POSITION.

.

END OF PRE SB RA 32029-10

POST SB RA 32029-10

(11) Install the P-clamps (110), (115) and (120) on the suction hose/tube (5), the lower case drain hose and pressure hose/tube (55).

Hydraulic Suction Hose/Tube Assembly (POST SB RA32029-7 and POST SB RA32029-10) ** ON A/C NOT FOR ALL

(a) Make sure that the P-clamps are installed 16.0 in. (0.4064 m) down from the top of the next higher clamp.

NOTE: Make sure there is a 0.5 in. (12.7 mm) gap between the hose and the oil filter module.

(b) Install the bolt (95), washer (100) and nut (105).
(c) TORQUE the nut (105) to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )

.
(d) Do a play check to make sure that there is sufficient clearance between the fan cowl and the hydraulic lines. If there is not sufficient clearance, adjust the hydraulic lines as required.

END OF POST SB RA 32029-10

(12) Torque the screw on the support bracket.

CAUTION: YOU MUST TORQUE THE BOLTS IN THE SEQUENCE GIVEN. IF YOU DO NOT TORQUE THE BOLTS IN SEQUENCE, YOU CAN CAUSE DAMAGE TO THE SUCTION HOSE/TUBE ASSEMBLY.

(a) TORQUE the screw (35) on the filter support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(b) TORQUE the screw (35) on the upper support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(c) TORQUE the screw (35) on the lower mid support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(d) TORQUE the screw (35) on the upper mid support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.

END OF PRE SB RA 32029-7

Subtask 29-13-49-420-069-A ** ON A/C NOT FOR ALL

B. Installation of the Hydraulic Suction Tube Assembly

POST SB RA 32029-7

PRE SB RA 32029-10

(1) Remove the blanking covers from the hose (5) coupling half and the fluid disconnect panel port.
(2) Connect the hose (5) coupling half to the fluid disconnect panel and tighten the coupling nut by hand.
(3) TORQUE the coupling nut to between 75 and 66.7 lbf.ft (10.17 and 9.04 m.daN )

.
(4) Remove the blanking covers from the hose (5) adapter assembly and the hydraulic pump union.
(5) Connect the hose (5) adapter assembly to the hydraulic pump union.
(6) TORQUE the coupling nut to between 75 and 66.7 lbf.ft (10.17 and 9.04 m.daN )

.
(7) Install the hose (5) on the upper, upper mid and lower mid support-brackets.

CAUTION: BE CAREFUL WHEN YOU INSTALL THE CLAMP. MAKE SURE THAT THE TWO HALF-CUSHIONS ARE IN POSITION.

(8) Install the clamps (40) and (90) , the screws (35), the washers (50) and the nuts (45). Do not torque the screws at this time.
(9) Install the hose (5) on the filter support-bracket with the clamp (40) and the screw (35). Do not torque the screw at this time.
(10) Install the center mount clamp.
(a) Put the center-mount clamp (30) 14 in. (355.6 mm) below the hydraulic-filter mount bracket.
(b) Measure the distance from the lower edge of the clamp (40) to the top edge of the clamp (30).
(c) Turn the center mount clamp (30) to keep a minimum clearance of 0.6 in. (15.24 mm) to 0.8 (20.32 mm) between the clamp (30) and the oil module.
(d) Put the hose (5) into the center mount clamps (30).
(e) Install the clamp band (25) and attach it with the bolt (20), the washer (15) and the nut (10).
(f) TORQUE the nut (10) to between 85 and 74.35 lbf.in (0.96 and 0.84 m.daN )

.
(11) Torque the screw on the support bracket.

CAUTION: YOU MUST TORQUE THE BOLTS IN THE SEQUENCE GIVEN. IF YOU DO NOT TORQUE THE BOLTS IN SEQUENCE, YOU CAN CAUSE DAMAGE TO THE SUCTION HOSE/TUBE ASSEMBLY.

(a) TORQUE the screw (35) on the filter support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(b) TORQUE the screw (35) on the upper support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(c) TORQUE the screw (35) on the lower mid support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(d) TORQUE the screw (35) on the upper mid support bracket to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.

END OF POST SB RA 32029-7

END OF PRE SB RA 32029-10

Subtask 29-13-49-870-050-A ** ON A/C NOT FOR ALL

C. Bleeding
(1) Put a container below the connection between the suction hose coupling-half and the fluid disconnect panel.
(2) Put absorbent paper on the hose coupling nut.
(3) On the connection between the hose coupling half and the suction hose:

lightly loosen the upper end of the suction hose from its coupling half,
use two wrenches.

(4) Let the hydraulic fluid flow from the disconnected connection into the container until there are no air bubbles.
(5) When you complete the bleeding, TORQUE the hose coupling nut to between 1150 and 1000 lbf.in (13.00 and 11.30 m.daN )

.
(6) Remove the container and the absorbent material.

Subtask 29-13-49-710-053-A ** ON A/C NOT FOR ALL

D. Operational Test
(1) Do the operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002).
(2) Make sure that there are no leaks from the connections.
(3) Make sure that the level of the hydraulic fluid in the Yellow reservoir is correct. If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001).

NOTE: The Yellow reservoir must contain between 12 and 14 liters of hydraulic fluid. This prevents a drop in the level of the fluid if the bleeding is not correct.

Subtask 29-13-49-860-118-A ** ON A/C NOT FOR ALL

E. Do the hydraulic maintenance procedure (Ref. AMM TASK 29-13-51-860-001).

5. Close-up
Subtask 29-13-49-410-068-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Close the left fan-cowl door 447AL (Ref. AMM TASK 71-13-00-410-040).
(5) Close the door 195BB.

[Rev.10 from 2021] 2026.04.01 00:22:02 UTC