TM 10-5410-228-24
3.9.22 ECU Drain Replacement Continued.
NOTE
The ECU heater element assembly and heater coil must be removed to gain access to PVC
hose.
(8)
Remove PVC hose (32) from inside, rear of ECU by loosening two hose clamps (33) on both ends
of PVC hose (32) and sliding PVC hose (32) off its connection.
NOTE
ECU return air opening grill and sound guard must be removed to gain access to PVC hose.
(9)
Remove PVC hose (34) from inside, rear, driver side of ECU by loosening two hose clamps (35)
on both ends of PVC hose (34) and sliding PVC hose (34) off its connections.
(10) Remove two cushion clamps (36) on PVC hose (37).
(11) Remove drain tubing (38) from PVC hose (37) by loosening hose clamp (39) and sliding drain
tubing (38) off PVC hose (37).
(12) Remove PVC hose (37) from drain port under rear driver side of ECU by loosening hose clamp
(40) and sliding PVC hose (37) off drain port.
b. Installation (Refer to Figure 3-27)
(1)
Connect PVC hose (37) to drain port under rear driver side of ECU with hose clamp (40).
(2)
Connect drain tubing (38) to PVC hose (37) with hose clamp (39).
(3)
Install two cushion clamps (36) on PVC hose (37).
NOTE
ECU return air opening grill and sound guard must be removed to gain access to PVC hose.
(4)
Connect PVC hose (34) to its drain port connections inside rear driver side of ECU with two hose
clamps (35) on both ends.
NOTE
ECU heater element assembly and heater coil must be removed to gain access to PVC hose.
(5)
Connect PVC hose (32) to its drain port connections inside rear of ECU with two hose clamps
(33) on both ends.
NOTE
ECU mist eliminator must be removed to gain access to PVC hose.
(6)
Connect PVC hose (26) to its drain port inside rear passenger side of ECU with hose clamp (28).
(7)
Connect drain tubing (29) to PVC hose (26) with hose clamp (30).
NOTE
ECU front door must be opened and ECU passenger side access cover, prefilter cover, and
mist eliminator must be removed to gain access to PVC hose.
(8)
Connect PVC hose (27) to drip pan inside front passenger side of ECU with hose clamp (31).
(9)
Install cushion clamp (25) on PVC hose (26) and (27).
(10) Connect PVC hose (23) to drain port under front driver side of ECU with hose clamp (24).
(11) Install two cushion clamps (22) on PVC hose (23).
NOTE
ECU front door must be opened to gain access to PVC hose.
(12) Connect PVC hose (20) to drip pan inside front driver side of ECU with two hose clamps (21) on
both ends.
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