CHAPTER 6 COOLING SYSTEM MAINTENANCE

6.2. REPLACE RADIATOR AND RADIATOR SHROUD

TM-5-3895-373-20 Bituminous Distributor Body M918 Model D-63 Manual
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TM 5-3895-373-20 CHAPTER 6 COOLING SYSTEM MAINTENANCE Para Page General Maintenance Procedures............................................................................................ 6.1 6-1 Remove, Test, and Install Thermostat ..................................................................................... 6.3 6-8 Replace Coolant Hoses............................................................................................................ 6.4 6-10 Replace Fan Belt...................................................................................................................... 6.7 6-19 Replace Radiator Fan............................................................................................................... 6.6 6-17 Replace Radiator and Radiator Shroud.................................................................................... 6.2 6-2 Replace Water Pump ............................................................................................................... 6.5 6-12 6.1. GENERAL MAINTENANCE PROCEDURES. All unit level maintenance shall be performed in accordance with good and safe shop practices. Observe the following general instructions and requirements when performing cooling system maintenance. a. Thread locking compound is used with most threaded fasteners. If a threaded fastener will not break loose, heat threaded area of fastener from 500° to 600°F (232° to 315°C) with heater gun. If the special solvent used to remove thread locking compound from screw threads fails to remove buildup, discard fastener. b. Always tag mating connectors and fittings before disconnecting. Tagging of mating connectors and fittings will ease reassembly and reduce assembly errors. c. Discard all removed gaskets, seals, preformed packings, self-locking nuts, lockwashers, spring pins, and deformed hardware. d. Inspect all removed components for obvious wear or damage. Replace all worn, bent, broken, or otherwise damaged parts. Test leaky radiator in accordance with procedures in TM 750-254. e. Inspect all removed fasteners for thread damage. If thread damage is found, replace fastener. Replace flat washers if galled or bent. Use screw extractor set (Item 15, Appendix E) to remove broken studs or screws. f. Clean painted surfaces thoroughly before repainting. Do not paint over rust or corrosion. Reference TM 430139 for equipment painting requirements. g. Torque values cited in the text apply to modified SAE Grade 8 fasteners at required clamping loads. h. Use only authorized replacement parts. Refer to TM 5389537324P, Repair Parts and Special Tools List (RPSTL) for authorized replacement parts. i. Observe all warnings and cautions. Wear protective clothing and equipment as specified. Observe the Safety and Hazard Warnings provided in TACOM technical bulletin TB 43-0216. 6-1

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