4-20. UNIT CLEANING PROCEDURES (CONT)

TM-5-3895-369-14 Mixer Rotary Tiller Manual
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TM 5-3895-369-14 4-20. UNIT CLEANING PROCEDURES (CONT). I b. Do not clean preformed packings or other rubber parts in drycleaning solvent. Wipe with a clean, dry, lint-free cloth (item 12, appendix E). c. Electrical parts such as coils, connectors, switches, and insulated wiring should not be soaked or sprayed with cleaning solutions. Clean these parts with a clean, dry cloth moistened with drycleaning solvent (item 54, appendix E). d. For exterior cleaning of frame and structural components, use detergent (item 19, appendix E) in a solution as recommended on the container. Leave application on items surface for approximately 10 minutes before rinsing. Rinse with hot or cold water under pressure. If available, use hot water under 80 to 120 psi (36 - 54 kPa) pressure. An ordinary garden hose may be used if no other equipment is available. If pressurized water supply is not available, wash painted surfaces with a solution of l/4 cup soap chips (item 10, appendix E) to one gallon of water. Do not use gasoline, diesel fuel, or other petroleum base products to clean or preserve hydraulic components. Use of petroleum based products can change the lubricating quality of hydraulic fluid and cause failure or damage to equipment. e. When cleaning hydraulic system components, use petroleum-free solvents. Clean and dry parts thoroughly to make sure no residue remains. If preservative is required before reassembly, apply a light film of hydraulic fluid (item 23, appendix E). 4-21. REMOVAL AND DISASSEMBLY OF COMPONENTS. a. Before removal of any electrical component, disconnect battery ground cables. b. Ensure that adequate clearance is available for removal of the component. Disassemble the vehicle to the extent necessary to provide adequate working clearance. All personnel must stand clear during lifting operations. A swinging or shifting load may cause injury or death to personnel. c. Use a chain hoist, jack or other aid when lifting heavier components. Lifting device should be positioned and attached to components to remove all strain from mounting hardware, before last supporting piece of hardware is removed. d. Discard preformed packings, gaskets, seals and similar material when removed. Be sure that all traces of oil, gaskets, and sealants are removed. When possible, use wood or plastic probes and scrapers to prevent damage to machined surfaces. e. Cotter pins, lockwashers, lockwire, self-locking nuts and similar devices should be discarded when removed. Self-locking fasteners that loosen up must be replaced, not tightened. 4-156

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