(2) Put the warning notices in position to tell persons not to pressurize the Green, Blue and Yellow hydraulic systems:
-in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panel of the Green, Blue and Yellow hydraulic systems.
(3)
Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(4)
Depressurize the reservoirs of the Green, Blue and Yellow hydraulic systems (Ref. TASK 29-14-00-614-001).
Subtask 29-14-41-010-054
C. Open the access door 195AB.
4. Procedure
_________
(Ref. Fig. 301/TASK 29-14-41-991-004) Subtask 29-14-41-020-053
A. Removal of the Filter Element
(1)
Remove the spring clip (2) from the filter bowl (5).
(2)
Remove the filter bowl (5) and the filter element (3).
(3)
Remove and discard the filter element (3) and the O-ring (4). Subtask 29-14-41-640-051
B.
Preparation for Installation
(1)
Lubricate the new O-ring (4) with HYDRAULIC FLUIDS (Material No. 02-003).
(2)
Lubricate the O-ring of the new filter element (3) with HYDRAULIC FLUIDS (Material No. 02-003).
(3)
Lubricate the threads of the filter bowl (5) with HYDRAULIC FLUIDS (Material No. 02-003).
R Reservoir Pressurization Filter Figure 301/TASK 29-14-41-991-004
1EFF : 1 1 1CES ALL 1 111 29-14-41 Page 304 Aug 01/99
Subtask 29-14-41-420-053
C. Installation of the Filter Element
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Install the new O-ring (4) on the filter bowl (5).
(4)
Do a check of the filter element (3) and make sure that it is clean and not damaged.
(5)
Engage the filter element (3) in the reservoir pressurization unit (1).
(6)
Install the filter bowl (5) in the reservoir pressurization unit (1). NOTE : Tighten the filter bowl with your hand only.
____
(7)
Install the spring clip (2) on the filter bowl.
(8) If the clogging indicator is out, push it in to set it again. R **ON A/C 001-049, 101-105, 151-199, 201-210,
Subtask 29-14-41-790-054-A
D. Test of the Filter and the Automatic Drain Valve
(1)
Remove the warning notice(s).
(2)
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD, 1701GK, 1702GK, 2701GJ, 2702GJ, 3801GX, 3802GX, 3803GX.
(3)
Operate the reservoir pressurizing system: NOTE : The pressurization of the reservoirs with the APU and the
____ ground supply is necessary to make sure that the operation of the automatic drain valve is correct.
(a)
Make sure that the automatic drain valve (6) is open.
(b)
Start the APU (Ref. TASK 49-00-00-860-008).
(c) Make sure that the bleed air supply from the APU is set to supply the reservoir pressurizing system (Ref. TASK 36-12-00-710-001).
(d) At the same time as you pressurize the reservoirs, apply SPECIAL MATERIALS (Material No. 05-004) to the connection of the filter bowl and the reservoir pressurization unit.
(e) Make sure that there are no leaks between the filter bowl and the reservoir pressurization unit.
(f) Make sure that the clogging indicator stays in.
(g) Make sure that the automatic drain valve (6) is closed (you can see the green indicator).
(h) Stop the operation of the APU (Ref. TASK 49-00-00-860-009).
(i) Depressurize the reservoirs of the Green, Blue and Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(j) Make sure that the automatic drain valve (6) is open.
(k) Pressurize the reservoirs of the Green, Blue and Yellow hydraulic system with a ground supply (Ref. TASK 29-14-00-614-002) and examine for leaks as above.
R **ON A/C 051-099,
R Subtask 29-14-41-790-054
R D. Test of the Filter and the Automatic Drain Valve
R (1) Remove the warning notice(s).
R R R (2) Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD, 1701GK, 1702GK, 2701GJ, 2702GJ, 3801GX, 3802GX, 3803GX.
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