Table 4-1. Troubleshooting - continuedPROBLEMPOSSIBLE CAUSEREMEDYMUD PUMP & DRIVEMud pump clutch1.Insufficient air pres-Inspect entire air line installation forwill not engagesure.any restrictions or leaks which coulddecrease air supply to clutch.Check operating valve for full opening.Check tattle tale switch.If operating in cold weather, the airlines may be restricted due to freezingof the moisture in the air system. Theaddition of Denatured alcohol or Ethy-lene Glycol in the air receiver willeliminate this problem. Avoid the useof all rust inhibitors or commercialantifreeze.2.Ruptured diaphragm.Replace diaphragm.3.Drive ring worn out.Replace drive ring.Mud pump clutch1.Insufficient air pres-Inspect entire air line installation forslips.sure.any restrictions or leaks which coulddecrease air supply to clutch.Check operating valve for full opening.Carefully inspect clutch for possibleair leakage at the diaphragm.If operating in cold weather, the airlines may be restricted due to freezingof the moisture in the air system. Theaddition of Denatured alcohol or Ethy-lene Glycol in the air receiver willeliminate this problem. Avoid the useof all rust inhibitors or commercialantifreeze.2.Ruptured diaphragm.Replace diaphragm.3.Drive rings worn out.Replace drive rings.4.Dirt in drive ring.Disassemble and clean.Clutch drags or will1.Misalignment of clutchRealign clutch and driving member.not disengageand driving member.2.Dirt in driving ring.Disassemble and clean.4-2
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