(c)
Do not use the solution for 5 minutes (activation period).
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747-400
MAINTENANCE MANUAL
(d) Add water to make approximately 5 gallons (20 liters) of solution.
S 672-008
(3) After 5 minutes, put the solution into the potable water system through the fill fitting at the service panel (Ref 12-14-61/301).
NOTE: The potable water will have a bad taste (like chlorine) if
____ you use too much of the disinfectant solution
S 672-009
(4)
Fill the system with potable water until water with chlorine flows from the overflow port (Ref 12-14-61/301).
S 672-010
(5)
Open each faucet in the system for 15 seconds.
S 672-011
(6)
Let the water stay in the system for 1 hour.
NOTE: The water with chlorine must be removed immediately after
____ 1 hour to prevent a possible bad taste in the system.
S 682-012
(7) Drain the system (Ref 12-14-61/301).
G. Flush the Potable Water System with Clean Water.
S 612-013
(1)
Fill the system (Ref 12-14-61/301) with potable water until the water flows from the overflow port.
S 612-014
(2)
If full tanks are not necessary, drain the system until the necessary quantity is in the tanks (Ref 12-14-61/301).
S 752-015
(3)
Do a check of the water's taste from a faucet.
(a) If the taste is bad, flush the system with potable water (Ref paragraph 3).
(4)
If applicable, install the new water filter cartridges.
(5)
Connect the coffeemakers that were disconnected.
S 432-016
S 432-017
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TASK 38-10-60-602-055
3. Hot Water Flush (If it is necessary to remove chlorine taste)_______________
A. Consumable Materials
(1) Hot water (140 +/- 5 degrees Fahrenheit)
B. References
(1) AMM 12-14-61/301, Potable Water Tanks
C. Access
(1)
Location Zone
128 Area Below and Aft of Forward Cargo Container Compartment, Right
(2)
Access Panel
191FF Access Door, Water Service
D. Procedure
S 172-056
(1)
Perform hot water flush.
(a)
Drain system and add a minimum of 100 gallons of hot water to water tanks; close fill and overflow valve (water temperature 140 +/- 5 degrees Fahrenheit).
(b)
Open all water system faucets until water flows through each for 15 seconds.
(c)
Allow system to stand for one-half hour.
(2)
Drain the system (AMM 12-14-61/301).
(3)
Fill the system (AMM 12-14-61/301).
S 672-059
(4)
Check water from typical faucet.
S 682-057
S 612-058
(a) If taste is objectionable, repeat hot water flush and retaste.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú
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