TM 9-2350-256-34-1 3-57. Mechanical Transmission Oil Cooler Assembly. a. Removal. Refer to paragraph 2-33 for instructions on removal and installation. b. Disassembly.          Disassemble     the     oil cooler assembly as shown in figure 3-23. c. Cleaning.    Clean  dirt  and  other  foreign  material from  all  parts  with  drycleaning  solvent  or  mineral  spirits paint thinner, followed by wire brushing where necessary. Dry with compressed air. d. Inspection and Repair. (1) Inspection. (a) Inspect oil cooler for cracks, distortion, breakage, and other damage that might cause leakage or otherwise impair its use. (b) Inspect    threaded    parts    for    nicks, cross threading, and other evidence of excessive wear. (c) Inspect  guard  assembly  for  broken welds,  cracks,  and  other  damage  that  would  impair  its use. (2) Repair.        Replace    any    parts    that    are defective. e. Assembly. Assemble the mechanical transmission   oil   cooler   assembly   in   reverse   order   of disassembly. 3-58. Mechanical Transmission and Main Hydraulic Pump Assembly a. Removal.    Refer  to  paragraph  2-32  for  removal and installation instructions. b. Repair.        Refer    to    TM    9-2350-256-34-2    for inspection and repair instructions. 3-59. Hoist Winch Assembly a. Removal.    Refer  to  paragraph  2-35  for  removal and installation instructions. b. Repair.        Refer    to    TM    9-2350-256-34-2    for inspection and repair instructions. 3-60. Main and Hoist Winch Brake Band Assemblies a. Removal.    Refer  to  paragraph  2-39  for  removal and installation instructions. b. Disassembly.        Disassemble    the    brake    band assembly as shown in figure 3-24. Figure 3-23.  Mechanical transmission oil cooler assembly-disassembly and assembly. c. Cleaning.    Clean  dirt  and  other  foreign  material from  all  parts  with  drycleaning  solvent  or  mineral  spirits paint thinner, followed by wire brushing where necessary. Dry with compressed air. 3-44   CHANGE 7