TM 5-3895-374-24-2FIGURE 5.DISASSEMBLY1.Mark head and casing before disassembly to insureproper reassembly. The idler pin, which is offset inpump head, must be positioned toward and equaldistance between port connections to allow for properflow of liquid through pump.Remove head from pump. Do not allow idler to fallfrom idler pin. Tilt top of head back when removing toprevent this. Avoid damaging head gasket. If pumpis furnished with pressure relief valve, it need not beremoved from head or disassembled at this point.Refer to Pressure Relief Valve Instructions, page 11.If pump has jacketed head plate, it will separate fromhead when it is removed. The gasket between headand jacket head plate must be totally removed. Usenew gasket when assembling pump.2.Remove idler and bushing assembly.3.Insert length of hardwood or brass through portopening between rotor teeth to keep shaft fromturning. Bend up tang of lockwasher and with aspanner wrench remove locknut and lockwasher fromshaft.page 3-1214
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