CHAPTER 5 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

Cleaning and Inspection - TM-5-4930-228-14_166

Table 5-1. Direct Support and General Support Maintenance Troubleshooting-continued

TM-5-4930-228-14 Tank and Pump Unit Liquid Dispensing for Truck Mounting (Highland Industries Model 2000) FSN 4930-877-8678 Manual
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CHAPTER 5 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT 5-1. Tools and Equipment personnel for the maintenance of the tank and There are no direct support or general support pump unit. tools or repair parts issued with or authorized for 5-3. Direct Support and General Support the tank and pump unit. Maintenance Repair Parts 5-2. Special Tools and Equipment Repair parts and equipment are listed in the No special tools or equipment are required by repair parts and special tools list covering direct direct support or general support maintenance support and general support maintenance for this equipment (TM 5-4930-228-24P). Section II. DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE TROUBLESHOOTING 5-4. General b. This manual cannot list all malfunctions that a. This section contains troubleshooting in may occur, nor all tests, or inspections and formation for locating and correcting troubles corrective actions. If a malfunction is not listed or is which may develop in the tank and pump unit. not corrected by listed corrective actions, notify Each malfunction for an individual component, your supervisor. unit, or system is followed by a list of tests or in- 5-5. Direct Support and General Support spections which will help you to determine probable Maintenance Troubleshooting causes of trouble and corrective actions to take. You should perform the tests / inspections and For direct support and general support main- corrective actions in the order listed. tenance troubleshooting, refer to table 5-1. Table 5-1. Direct Support and General Support Maintenance Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. PUMP FAILS TO PUMP. Step 1. Inspect for broken or defective impeller. Replace defective impeller. Step 2. Inspect for cracked, broken, or defective housing. Replace defective housing. 2. PUMP LEAKS. Step 1. Inspect for defective gasket. Replace defective gasket. Step 2. Inspect for broken or worn seal. Replace defective seal. 3. P U M P N O I S Y. Step 1. Inspect for defective seal. Replace defective seal. Step 2. Inspect for loose and defective impeller. Replace defective impeller. 5-1

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