Table 4-1. Troubleshooting - continued

Table 4-1. Troubleshooting - continued - TM-5-3820-256-24-1_33

Table 4-1. Troubleshooting - continued - TM-5-3820-256-24-1_35

TM-5-3820-256-24-1 Drilling System Manual
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Table 4-1. Troubleshooting - continued PROBLEM POSSIBLE CAUSE REMEDY Clutch drags or will 3. Tight center plate. Replace center plate. not disengage - continued Clutch overheating 1. Clutch slippage. Refer to Mud Pump Clutch Slips. 2. Misalignment of Align clutch and member. clutch and driving member. 3. Dirt in driving ring Disassemble and clean. or spider. 4. Plates not free on Disassemble and clean, de-burr or re- hub. place defective parts. Clutch noisy 1. Pressure plate and Disassemble, clean or replace if de- insulation not fully fective. disengaging. 2. Excessive wear from Realign clutch and driven member. Re- misalignment or from fer to Clutch Drags or Will Not Dis- clutch not fully dis- engage. engaging. Mud pump does not 1. Clutch slipping. See Mud Pump Clutch Slips symptom, operate preceding. 2. Broken universal Inspect universal joints in mud pump joint in drive line. drive line. Replace any found defective. 3. Internal damage to Remove drive assembly inspection plate. drive assembly. Inspect shafts, sprockets, and drive chains. Replace damaged parts . 4. Damage in mud Remove power frame hood. Inspect pump power frame. shafts, sprockets, drive chains and con- necting rods for breakage. Replace damaged parts. Mud pump operates 1. Excessive worn fluid Replace fluid valves and seats. but does not move valves and seats. mud 2. Excessively worn Replace piston cups and cylinder liners. piston cups and cylinder liners. 4-3

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