TM 10-5410-228-24
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Tools/Test Equipment:
Equipment Conditions:
Shop Equipment, Automotive Maintenance and
ECV shut off, power off.
Repair (Item 38, Appendix B)
Rear control panel and power panel tagged.
Gloves (Item 16, Appendix B)
Hydraulic system drained (see para 2.14.3).
Goggles (Item 17, Appendix B)
ECU removed (see para 3.9.21).
1-1/8 Inch Open End Wrench (Item 64, Appendix B)
ECU covers and doors opened or removed as required
1-3/8 Inch Crowfoot Wrench (Item 60, Appendix B)
(see para 2.14.1).
Torque Wrench (Item 66, Appendix B)
Materials/Parts: (Cont.)
Materials/Parts:
Hydraulic Fluid (Item 24, Appendix C)
Six Lockwashers (Item 18, Appendix E)
Wiping Rags (Item 39, Appendix C)
Four O-rings (Item 51, Appendix E)
NOTE
A small amount of hydraulic fluid will be released when removing tubes. Collect fluid in cup
or small container and clean any spillage with rags.
Remove/disassemble only to the extent necessary to remove or replace defective
assemblies/components. Use standard maintenance shop practices/procedures.
a. Removal (Refer to Figure 3-13)
(1)
Disconnect two hose assemblies (1 and 2) from two hose ports on heater coil (3) and ECU
enclosure (4). Remove two hose assemblies (1 and 2) from ECU enclosure (4).
NOTE
Plug open ends on hose assemblies to keep the hydraulic system free of contaminants.
(2)
Plug open ends on two hose assemblies (1 and 2).
(3)
Remove two O-rings (5) from two hose ports on heater coil (3). Discard O-rings (5).
NOTE
Plug open ends of hose ports on heater coil to keep the hydraulic system free of
(4)
Plug open ends of two hose ports on heater coil (3).
(5)
Remove two O-rings (5) from ECU enclosure (4) bulkhead fittings. Discard two O-rings (5).
(6)
Remove six screws (6), six lockwashers (7) and six flat washers (8) securing heater coil (3) to
ECU enclosure (4). Discard six lockwashers (7).
b. Installation (Refer to Figure 3-13)
(1)
Secure heater coil (3) to ECU enclosure (4) with six screws (6), six new lockwashers (7) (Item 18,
(2)
Remove two plugs from two hose ports on heater coil (3).
(3)
Check both hose ports on heater coil (3) sealing surfaces for damage or material build up. If
required, clean hose ports with clean, lint-free cloth or replace heater coil (3).
(4)
Remove four plugs from two hose assemblies (1 and 2).
