S 864-043
WARNING: MAKE SURE TO OPEN THE CIRCUIT BREAKERS FOR THE CAPTAIN'S AND
_______ THE FIRST OFFICER'S SEATS BEFORE YOU DO WORK AROUND THEM. A FAILURE TO OPEN THE CIRCUIT BREAKERS CAN CAUSE THE SEATS TO MOVE ACCIDENTALLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
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A 747-400 MAINTENANCE MANUAL
ACCESS DOOR
SEE A SEE B
3. HOSE
2. ELECTRICAL LEADS
1. LEFT VALVE SOLENOID A
1. RIGHT 4. O-RING VALVE SOLENOID 8. WASHER 4. O-RING 5. TEE 6. UNION 7. NUT 4. O-RING 4. O-RING 9. WASHER 10. NUT 11. FEED HOSE
2. ELECTRICAL LEADS 12. ELBOW
3. HOSE 16. ELECTRICAL 17. CLAMP CONNECTOR 14. UNION 15. PUMP 13. PUMP DRAIN HOSE
B
Solenoid Valve and Pump Installation Figure 401
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A
747-400 MAINTENANCE MANUAL
(2) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P414, Left Power Distribution Center
1) 414D8, CAPT PWR SEAT
(b)
P415, Right Power Distribution Center 1) 415H32, F-O PWR SEAT
S 014-004
(3)
Open the windshield washer access door to get access to the solenoid valve V33 (left) or V34 (right) (1).
S 034-005
(4)
Cut the solenoid valve electrical leads (2) (SWPM 20-30-12).
NOTE: You will subsequently make a splice with these wires.
____
S 034-038
WARNING: DO NOT LET THE WASHER FLUID TOUCH YOUR EYES OR STAY ON YOUR
_______ SKIN. THE WASHER FLUID CAN CAUSE EYE AND SKIN IRRITATION.
(5)
Disconnect the output hose (3).
S 024-008
(6)
Remove the solenoid valve (1).
S 034-009
(7)
Remove the O-ring (4) from the valve (1). Discard the O-ring.
TASK 30-44-01-404-010
3. Windshield Washer Solenoid Valve Installation (Fig. 401)
_____________________________________________
A. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Valve (Solenoid Valve) | 30-44-01 | 01 | 350 | | | 3 | Tubing Assembly (Output Hose) | | | 105 | | | 4 | Packing (O-ring) | | | 335 | | | 5 | Tee | | | 330 | 2......…........…...................................…...........….....…........1
B. References
(1)
AMM 24-22-00/201, Manual Control
(2)
SSM 30-42-01
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MAINTENANCE MANUAL
(3)
SWPM 20-30-12
(4)
WDM 30-44-11
C. Access
(1) Location Zone
221 Control Cabin, LH
D. Procedure
S 434-011
(1)
Install a new O-ring (4) on the solenoid valve (1).
S 424-012
(2)
Install the solenoid valve (1) in the tee (5) with not more than 9 pound-feet of torque.
S 434-013
(3)
Connect the output hose (3).
S 434-014
(4)
Make a splice of the solenoid valve electrical leads (2) to the wire bundle (SWPM 20-30-12).
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