TM 55-4920-328-13 Section VIII.  T53 TURBOSHAFT POWER ABSORPTION SYSTEM MAINTENANCE 6-34.  Scope. Maintenance of the T53 turboshaft power absorption system consists of cleaning, inspection, lubrication, and replacement of components in the water brake assembly, and cleaning and repair of the 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. 6-35.        T53    Turboshaft    Water    Brake    Assembly Maintenance. Disassemble the water brake assembly in accordance    with    the    sequence    of    index    numbers assigned to figure 6-8 and as follows: a. Remove  all  external  components  called  out  in figure 6-8. b. Inspect  thermocouple  assemblies  (1  and  2)  for broken   connectors,   heavily   corroded   electrical   pins, frayed cable, damaged mounting connector and damaged    or    corroded    probes.        Replace    the    entire thermocouple assembly if damage is found. c. Inspect  tube  assemblies  (4,  11,  14,  15  and  16) for dents, cracks, sharp bends, evidence of leakage and thread damage.  Replace the tube assembly if damage is found. d. Inspect  valves  (3  and  21)  for  dents,  leaks  and corrosion.  Replace if required. e. Inspect all remaining components; tee's, unions, nipples,    plugs,    etc.,    for    cracks,    dents,    leakage    or corrosion and replace if damaged. f. Re-install all components removed in step "a". 6-36.  T53 Turboshaft Torque Element Maintenance. Proceed as follows: a. Remove the compound from the potentiometers and clean with freon (Specification BBF-1 421). b. Check  the  continuity  through  the  signal  cable assembly and the potentiometers, using figure 6-9 as a guide. 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,     Massach usetts). (4) Solder  the  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. 6-25