TM 55-4920-328-13 Section XII.  T63 TURBOSHAFT POWER ABSORPTION SYSTEM MAINTENANCE 6-48.  Scope. Maintenance  of  the  T63  power  absorption  system consists   of   cleaning,   inspection,   and   replacement   of component   parts   of   the   water   brake   assembly   and torque element after 500 hours of operation. NOTE At  1,000  hours  of  operation,  the water   brake   assembly   must   be overhauled by depot level personnel. 6-49.        T63    Turboshaft    Water    Brake    Assembly Maintenance. Proceed as follows: a. Remove   the   water   brake   assembly   from   the conversion kit frame assembly as specified in paragraph 6-47. b. Remove  all  external  components  called  out  in Figure 6-13. c. Inspect  thermocouple  assemblies  (1  and  2)  for broken   connectors,   frayed   cables   damaged   mounting connector, corroded probes and electrical pins.  Replace thermocouple assembly if found to be defective. d. Inspect   tube   assemblies   (4   and   6)   for   dents, cracks,  sharp  bends,  evidence  of  leakage  and  thread damage.        Replace    tube    assembly    if    found    to    be defective. e. Inspect     valves     (3)     for     dents,     leaks,     and corrosion.  Replace if required. f. Inspect  all  remaining  components,  tee,  unions, nipples,   plugs,   etc.,   for   dents,   cracks   and   corrosion. Replace if found to be defective. g. Re-install all components removed in step "b". h. Install     the     water     brake     assembly     on     the conversion kit frame assembly as specified in paragraph 6-47. 6-50.  T63 Turboshaft Torque Element Maintenance. Proceed as follows: a. Remove the compound from the potentiometers and clean with freon (Specification BBF-1421). b. Check  the  continuity  through  the  signal  cable assembly and potentiometers.  (Refer to figure 6-9.) c. If  the  torque  element  signal  cable  assembly  is defective, replace as follows: (1) Disconnect    the    cable    from    the    torque element body. (2) Remove the connector from the cable. (3) Procure   a   20-foot   length   of   WH67896 cable (Schaevitz Bytrex, Inc, Waltham, Massachusetts.) (4) Solder    leads    to    the    connector    using Specification QQ-S-571 60/40 resin core solder.  Use a new MS3106B-14S-5P connector if damage is noted at removal. (5) Connect  the  lead  shield  to  the  connector clamp. (6) Connect   the   opposite   end   of   the   cable assembly  to  the  torque  element  terminals.    (See  figure 6-9.) (7) Apply    DC-4    compound    (Dow    Corning Corp,     Midland,     Michigan)     to     the     torque     element terminals. KEY TO FIGURE 6-13. 1. Thermocouple Assembly 2. Thermocouple 3. Valve 4. Tube Assembly 5. Nipple 6. Tube Assembly 7. Adapter 8. Nipple 9. Plug 10. Nipple 11. Elbow 12. Adapter 13. Coupling 14. Nipple 15. Plug 16. Adapter 17. Elbow 18. Elbow 6-36