(2)
Install the LOCKING TOOL - FLAP/SLAT CONTROL LEVER (98D27803000000) (Ref. TASK 27-00-00-480-002) on the slat/flap control lever.
Subtask 27-84-54-865-052
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21
Subtask 27-84-54-010-050
C. Open the main doors of the main gear (Ref. TASK 32-12-00-010-001).
Subtask 27-84-54-860-050
D. Aircraft Maintenance Configuration
(1)
Put the access platform in position at the opening of the main door of the main gear.
(2)
Make sure that the Green and the Blue hydraulic systems are depressurized and put it in the maintenance configuration (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoirs of the Green and the Blue hydraulic systems (Ref. TASK 29-14-00-614-001).
(4)
Put the warning notice in position to tell persons not to pressurize the hydraulic systems.
(5)
Install the LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT (98D27504030001) to lock the left slat transmission.
(6)
Install the LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT (98D27504030001) to lock the right slat transmission.
(7)
Put a container in position below the Power Control Unit (PCU) (1).
4. Procedure
_________
(Ref. Fig. 401/TASK 27-84-54-991-001)
Subtask 27-84-54-020-050
A. Removal of the Hydraulic Motor CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
NOTE : The removal procedure for the hydraulic motor which is attached to
____ the valve block 25CV is given. The removal procedure for the hydraulic motor which is attached to the valve block 26CV is
R almost the same. The differences in the procedures are given in R the steps that follow.
Hydraulic Motor
Figure 401/TASK 27-84-54-991-001
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R R R R R (1) This procedure gives the removal procedure of the hydraulic motor (7) with the pressure-off brake (POB) (41) and the valve block assembly (23) from the differential gear box (40). If it is necessary to remove only the hydraulic motor (7), refer to (Ref. TASK 27-84-54-000-002).
(a) Disconnect the case drain line (8) from the hydraulic motor (7).
(b) Disconnect the hydraulic lines (11) from the valve block assembly (23).
(c) Remove the tie wrap (9) and disconnect the seal drain line (10) from the POB (41).
(d) Install the blanking caps on the open line ends (8),(10),(11).
(e) Install the blanking plugs in the ports of the PCU (1).
(f) Disconnect the electrical connectors (22) from the valve block assembly (23).
(g) Put blanking caps on the disconnected electrical connectors (22) and receptacles.
(h) Remove the bolts (3) and the washers (2).
(i) Support the hydraulic motor (7), the POB (41) and the valve block assembly (23).
(j) Remove the nuts (24) and the washers (25) from the studs (42).
R R (k) Remove the hydraulic motor (7) with the POB (41) and the valve block assembly (23).
(2) Remove the hydraulic motor (7) from the valve block assembly (23) and the POB (41).
(a) Remove the bolts (6) and the washers (5).
(b) Carefully remove the hydraulic motor (7) from the POB (41) and from the transfer tubes (14) on the valve block assembly (23).
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