S 434-014
(5)
Install the clamp which attaches the drain cap assembly to the waste tank drain tube.
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S 434-016
(6) Find the splice area and make a splice of the electrical leads (SWPM 20-30-12).
E. Gasket Heater Test
(1) S 864-031Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P414, Left Power Distribution Center: (a) 414M35, WASTE AND WATER LINE HTR - FWD
(2) S 864-018Supply electrical power (AMM 24-22-00/201).
(3) S 284-019Feel the gasket heater to make sure that it becomes warm.
(4) S 864-020Remove electrical power (AMM 24-22-00/201).
(5) S 414-021Close and latch the waste tank drain cap and close waste tank service panel door.
(6) S 414-032Install the cargo compartment floor panel.
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THERMOSTATS - REMOVAL/INSTALLATION
__________________________________
1. General_______
A. This subect has two tasks, one for the removal and one for the installation of the water and drain line heater thermostats. In this procedure, you will get access to the thermostat, cut the electrical leads, remove the thermostat, make a splice in a replacement unit, and do a check of the thermostat operation.
B. The removal and installation is the same for all thermostats.
TASK 30-71-06-004-001
2. Thermostat Removal__________________
A. References
(1)
SSM 30-71-01
(2)
SWPM 20-30-12
(3)
WDM 30-71-11, WDM 30-71-12, WDM 30-71-13, WDM 30-71-14
B. Access
(1) Location Zone 125 thru 152 Lower Lobe (Refer to WDM for thermostat locations)
C. Procedure
S 864-002
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P414, Left Power Distribution Center 1) 414A24, WASTE & WATER LINE HTR MN PWR 2) 414D5, WASTE & WATER LINE HTR MN PWR
S 014-003
(2)
Get access to the thermostat.
S 034-004
(3)
Cut the electrical leads of the thermostat (SWPM 20-30-12).
NOTE:____Let the cut electrical leads stay where they are. This will help you to find the splice. Remove them when you make a splice with the new leads.
S 034-005
(4)
Remove the locknut.
(5)
Remove the thermostat.
S 024-006
TASK 30-71-06-404-007
3. Thermostat Installation_______________________
A. References
(1) AIPC 30-71-06, Fig. 1
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MAINTENANCE MANUAL
(2)
AMM 30-71-00/501, Water Line and Waste Drain Heaters
(3)
SSM 30-71-01
(4)
SWPM 20-30-12
(5)
WDM 30-71-11, WDM 30-71-12, WDM 30-71-13, WDM 30-71-14
B. Access
(1) Location Zone 125 thru 152 Lower Lobe (Refer to WDM for thermostat locations)
C. Procedure
S 424-008
(1)
Hold the thermostat in its position and install the locknut.
S 434-009
(2)
Find the splice area and make a splice of the electrical leads (SWPM 20-30-12).
