(b)
Put the drain valve in the toilet waste tank so the control cable aligns with the cable from the service panel.
NOTE: Make sure the flexible boot has no holes and is not
____ broken. Make sure the drain valve makes a tight seal with the toilet tank when the drain valve is installed.
(c) Install the attach nuts and washers and tighten the attach nuts from 20 to 25 pound-inches.
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737-300/400/500MAINTENANCE MANUAL
(d) Install the control cable at the cable quick-disconnect.
NOTE: When the drain valve is closed, make sure the cable
____ moves 1/2 inch before the valves starts to open. It is necessary to use a force of 5 pounds on the cable before the valve starts to open.
S 614-022
(3)
Service the toilet waste tank (AMM 12-17-00/301).
S 714-023
(4)
Make sure the drain valve operates correctly and does not leak.
TASK 38-32-31-004-046
4. Auxiliary Waste Tank Drain Valve Removal (Fig. 401)
________________________________________
A. General
(1) This procedure removes the drain valve from the auxiliary waste tank. The auxiliary waste tank is referred to as the tank in the procedure.
B. References
(1) AMM 38-32-51/401, Toilet Waste Tank
C. Access
(1) Location Zone
220 Aft Cargo Compartment Equipment Bay
D. Procedure
S 014-048
WARNING: WEAR PROTECTIVE GLOVES, CLOTHING AND GLASSES WHEN YOU DO
_______ THE STEPS TO DISCONNECT THE TANK AND REMOVE THE DRAIN VALVE.
(1)
Do the steps in Auxiliary Waste Tank Removal (AMM 38-32-51/401) to disconnect the tank and lower the tank from its attach points.
S 864-034
(2)
Move the tank to a position that gives the sufficient clearance above the tank to remove the drain valve.
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S 864-045
CAUTION:_______DO NOT SET THE TANK ON THE TANK OUTLET. IF THE TANK OUTLET TOUCHES OTHER SURFACES, DAMAGE CAN OCCUR.
(3)
Put the tank on supports or surfaces that support the tank and do not allow the tank outlet to touch other surfaces.
S 024-035
(4)
Loosen the attach nuts for the drain valve (8 locations).
S 024-036
(5)
Push the drain valve in the down direction to control the effect of the spring.
S 024-037
(6)
Remove the attach nuts and washers for the drain valve.
S 024-038
(7)
Remove the drain valve and gasket.
TASK 38-32-31-404-047
5. Auxiliary Waste Tank Drain Valve Installation (Fig. 401)
_____________________________________________
A. References
(1)
AMM 12-17-00/301, Toilet Servicing
(2)
AMM 38-32-51/401, Toilet Waste Tank
B. Access
(1) Location Zone
220 Aft Cargo Compartment Equipment Bay
C. Procedure
S 144-039
(1) Clean the drain valve seat.
NOTE: Make sure the valve seat is smooth, has no unwanted material,
____
has no scratches, or other damage.
S 424-040
(2)
Put a new gasket over the attach bolts.
S 424-041
(3)
Put the drain valve in the tank so that the control cable aligns with the cable from the service panel.
NOTE: Make sure the flexible boot has no holes and is not broken.
____ Make sure the drain valve makes a tight seal with the tank when the drain valve is installed.
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