TM 9-2350-256-34-1c. Cleaning. Clean brake band and brake drumsurfaces with drycleaning solvent or mineral spiritspaint thinner.d. Inspection. Inspect the brake lining for wearand damage.e. Repair. Replace worn or unserviceable brakelinings or bands.f. Assembly. Assemble the brake band assemblyin reverse order of disassembly. Use new rivets (19for each assembly) to hold the brake lining to theband.3-61. Hydraulic System Oil Tank Assemblya. Removal. Refer to paragraph 2-40 for removaland installation instructions.b. Repair. Refer to TM 9-2350-256-34-2 for in-spection and repair instructions.3-62. Hydraulic Oil Tank Cover Assemblies andSuction Pipea. Removal. Refer to paragraph 2-43 for removaland installation instructions.b. Repair. Refer to TM 9-2350-256-34-2 for in-spection and repair instructions. Replace the suctionpipe if defective.3-63. Pressure Switcha. Removal. Refer to TM 9-2350-256-20 forremoval and installation instructions.b. Tests and Adjustments.(1) General. The switch should open whenhydraulic pressure of 235 A 3 psi is applied andshould close when the pressure drops to approximately 221 ± 8 psi. Paragraphs 3-63b(2) and(3) contain instructions for testing and adjusting thepressure switch.(2) Test.(a) Connect the pressure switch to the porta-power pump and pressure gage and connect an ohm-meter to the two electrical leads on the pressureswitch as shown in figure 3-25.Legend for fig. 3-25:1 Pressure gage (7950330)2 Ohmmeter3 Pressure switch4 Tee fitting5 Ports-power pump3-46
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