29-11-00
ALL ú ú 01 Page 203 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
~............................................................................... | CONDITION | CONDITION | PROCEDURE TO CORRECT THE CONDITION | | NO. | | | ................................................................................. | 6. | A failure of the | 1. Do a check of the filters for the | | | pressure filter element | flight control package to find the | | | that occurs with a pump | level of the contamination. If | | | failure that causes | there is contamination, flush the | | | hydraulic fluid | system. | | | contamination | 2. Flush the applicable pressure/case | | | | drain lines. | | | | 3. Replace the applicable pressure/ | | | | case drain filter elements. | | | | (AMM 29-11-17/401, 29-11-18/401, | | | | 29-11-19/401). | | | | 4. Do a check of the differential | | | | pressure indicator for the return | | | | applicable Return Module | | | | (AMM 29-11-13/401 or 29-11-15/401). | | | | If it has extended, refer to | | | | condition No. 4. | ................................................................................. | 7. | A pressure filter | 1. Get a sample of the reservoir | | | failure that occurs with| fluid. If there are signs of | | | a pump failure | contamination, flush the system. | | | | 2. Replace the elements in the | | | | applicable pressure/case drain | | | | module (AMM 29-11-17/201, | | | | 29-11-18/201, 29-11-19/201). | ................................................................................. | 8. | The hydraulic system is | 1. It is not necessary to flush the | | | opened for a component | system. | | | replacement or for | | | | general repairs | | ................................................................................. | 9. | There is a high acid | 1. It is not necessary to flush the | | | content in the | system. | | | hydraulic fluid | 2. Replace the hydraulic fluid in the | | | | system. | ................................................................................. | 10. | Pump failure that causes| 1. Do the Oil System Inspection | | | contamination of the | procedure (AMM 79-00-00/701). | | | engine oil system | | 2...........….........................….........................................1
TASK 29-11-00-862-285
2. Pressurize the Main Hydraulic Systems with a Hydraulic Service Cart
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A. Equipment
(1) Hydraulic Service Cart, 0 to 3000 psi, with
Hydraulic Fluid, Fire Resistant, BMS 3-11
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