C. Consumable Materials
(1) B00518 Acetone, O-A-51
D. References
(1)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(2)
AMM 29-21-00/201, Ram Air Turbine System
(3)
AMM 29-21-05/401, Ram Air Turbine (RAT) Deployment Actuator
(4)
AMM 29-21-10/401, Ram Air Turbine (RAT) Door Actuator Link
E. Access
(1) Location Zones 198 Wing to Body - Aft Lower Half (Right) 211/212 Control Cabin
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A
757
MAINTENANCE MANUAL
RAM AIR TURBINE (RAT) SEE A
20. DEPLOYMENT ACTUATOR 19. DOOR LINK 2. NUT 3. WASHERS 4. BUSHING 1. BOLT LINES 6. BOLT 7. NUT 8. WASHER 5. HYDRAULIC
á
SWITCH LIMIT 9. RAT STOWED
10. BOLT 11. WASHER 12. BUSHING 13. NUT
14. NUT 15. WASHER
HOUSING 16. RAT STRUT
17. HYDRAULIC PUMP
18. TURBINE HUB (SEE FIG. 402)
(SEE FIG. 402)
RAM AIR TURBINE (RAT) A
Ram Air Turbine (RAT) Installation
Figure 401
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A
757 MAINTENANCE MANUAL
(2) Access Panel
198MR RAT Compartment
F. Prepare for the Removal
S 864-002
(1)
Extend the RAT (AMM 29-21-00/201).
S 864-003
(2)
Remove the pressure from the right and center hydraulic systems and the reservoirs (AMM 29-11-00/201).
S 864-004
(3)
Open these circuit breakers on the overhead panel, P11, and install the circuit breaker lock set:
(a)
11D26, HYDRAULIC RAT CONT or HYDRAULIC RAT AUTO CONT
(b)
11D27, HYDRAULIC RAT AUTO or HYDRAULIC RAT AUTO PWR
S 864-005
(4) Open these circuit breakers on the main power distribution panel, P6, and install the circuit breaker lock set:
(a)
6F1, RAT MAN or RAT MAN PWR
(b)
6F2, RAT MAN CONT
G. Remove the RAT Assembly (Fig. 401)
S 034-006
(1)
Remove the nut (14) and washer (15) to disconnect the door link (19) from the RAT strut (AMM 29-21-10/401).
S 034-007
(2)
Remove the nut (13), washer (11), bolt (10), and bushings (12) to disconnect the deployment actuator (20) from the RAT strut (AMM 29-21-05/401).
(3)
Disconnect the three hydraulic lines (5) on the top of the strut.
(4)
Put plugs in the hydraulic lines and caps on the strut ports.
(5)
Disconnect the electrical wires.
S 034-008
S 034-009
S 034-010
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