TM 55-1930-209-14&P-3..Figure 4-11. HP Pump V-belt.(4) Check adjustments (steps b thru g).(5) Tighten adjusting screw locknuts.(6) Tighten four bolts.i. Check adjustment after 2 hours of operation. Adjust as necessary Check again after 2 more hours ofoperation.j. Install front V-belt housing (two pieces) Install 32 mounting bolts and lockwashers.4-7.3.12 HP pump mechanical seal replacement. The mechanical seal in the pump (Figure 4-12) requires nomaintenance or adjustment. When seal has become worn or damaged and leaks excessively, It must be replacedMaximum allowable leakage for the mechanical seal is 1 gallon per hour.CAUTIONS· The mechanical seal Is a precision product. Treat it with care Do not scratch face of carbon ring or letit drop Take particular care not to scratch the lapped face that comes in contact with the carbon ring..· Seals should never be immersed in solvent as this could damage the internal pacing.a. Slip carbon seal cartridge through an O-ring positioned in a groove In the end bell manifold. Some oil on theO-ring will facilitate assembly,.b. Check pump lubricant level and add oil as necessary.4-26
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