S 862-097
(4)
Put the speed brake control lever in the UP position.
S 492-098
(5)
Install the spoiler actuator locking tool.
S 862-099
WARNING: DO NOT PUT A PART OF YOUR BODY BETWEEN THE SPOILER AND THE WING
_______ UNLESS THE SPOILER ACTUATOR IS LOCKED OR THE HYDRAULIC POWER IS RELEASED. THIS CAN CAUSE INJURY TO PERSONS.
(6)
Do this task to depressurize hydraulic systems No. 1 and 4: "Hydraulic System Depressurization" (AMM 29-11-00/201).
(7)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
S 862-101
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S 862-102
(8)
Put the FLT CONTROL HYD POWER - WING system 4 switch on the pilots' overhead panel P5 to the SHUTOFF position.
S 862-103
(9)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P180, DC Power Distribution Panel
1) 180E22, LATERAL CONT VLV SYS 4
S 012-104
(10)
Open the wing access panel below the spoiler control package (572FB, left wing; 672FB, right wing).
S 022-105
(11)
Remove the thermal relief valve:
(a)
Put a container below the spoiler control package to catch the hydraulic fluid.
(b)
Use a 5/16-18 bolt to remove the thermal relief valve cap (25) and valve (26).
TASK 27-61-04-402-106
7. Thermal Relief Valve Installation (Fig. 201)
_________________________________
A. Standard Tools and Equipment
(1)
5/16-18 bolt at least 3 inches long
B.
Consumable Materials
(1)
D00054, Lubricant - Hydraulic System, MCS 352
(2)
D00196, Fluid - Hydraulic, BMS 3-11, Class 1
(3)
D00149, Fluid - Hydraulic, BMS 3-11, Class 2, (optional to class 1)
C.
Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 25 | Thermal Relief Valve Cap | 27-61-04 | 05 | 35 | | | 26 | Thermal Relief Valve | | | 60 | | | 27 | Backup Ring | | | 50 | | | 28 | Packing (O-ring) | | | 55 | | | 29 | Backup Ring | | | 40 | | | 30 | Packing (O-ring) | | | 45 | 2......…........…...................................…..........….....….........1
D. References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 24-22-00/201, Manual Control
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
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MAINTENANCE MANUAL
E. Access
(1)
Location Zone
575 Spoiler No. 5
675 Spoiler No. 8
(2)
Access Panel
572FB Trailing Edge Lower, LH
672FB Trailing Edge Lower, RH
F.
Procedure
S 422-123
(1)
Install the thermal relief valve:
(a)
Install the new O-rings (28 and 30) and backup rings (27 and 29) on the valve (26) and the valve cap (25). 1) Apply the hydraulic fluid to the O-rings, the backup rings
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