S 864-004
(3)
Open these circuit breakers on the overhead panel, P11, and install DO-NOT-CLOSE tags:
(a) 11D31, HYDRAULIC PTU CONT
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A
LEFT MAIN
WHEEL WELL
SEE A
POWER TRANSFER UNIT (PTU) (REF)
FILTER MODULE FOR THE CASE DRAIN OF THE POWER TRANSFER UNIT (PTU)
SEE B
757 MAINTENANCE MANUAL
MOUNT BOLT
O-RING AND WASHER
(3 LOCATIONS)
UNION AND
O-RING
CHECK VALVE
HYDRAULIC
LINE
(2 LOCATIONS)
O-RING
O-RING
FILTER
ELEMENT
DIFFERENTIAL PRESSURE O-RING
INDICATOR
FILTER CASE
FILTER MODULE
B
PRESSURE FILTER MODULE FOR
THE POWER TRANSFER UNIT (PTU) (REF)
OUTBD
FWD
LEFT MAIN WHEEL WELL
A
Filter Module Installation Figure 401
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757 MAINTENANCE MANUAL
S 864-005
(4) Remove the pressure from the left and right hydraulic systems and the reservoirs (AMM 29-11-00/201).
E. Remove the Filter Module
S 034-006
(1)
Disconnect the hydraulic lines from the filter module.
S 034-007
(2)
Install caps on the hydraulic lines.
S 024-008
(3)
Remove the bolts which hold the filter module.
S 024-009
(4)
Remove the filter module.
S 034-010
(5)
Remove the union and the O-ring from the inlet port of the filter module.
F. Remove the Filter Element
S 024-011
(1)
Remove the filter case from the filter module.
S 024-012
(2)
Remove the filter element from the filter module.
S 164-013
(3)
Clean the filter case.
G. Remove the Check Valve or the Differential Pressure Indicator
S 024-014
(1)
Remove the check valve or the differential pressure indicator from the filter module.
(2)
Install a cap on the opening on the filter module.
S 034-015
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