UsesTo grease fittings, pull out the length of hose youneed, wipe the fitting clean, and push the coupler of thecontrol valve onto the fitting. Squeeze the valve lever.When grease is forced out, release the lever and twistthe coupler to one side to remove it. Do not try to pullit straight off. After servicing is complete, wipe thecontrol valve coupler clean, rewind the hose, and put thecontrol valve into its holder.NOTE: When greasing, follow the manufacturer’slubrication chart to ensure all grease fittings are greasedat the proper intervals.NOTE: Be careful not to overgrease, asovergreasing can cause damage to seals and packings.NOTE: Wipe up any excessive grease that can fallonto the deck of the equipment or onto components thatdo not require greasing.In dispensing motor or gear oil, pull out thenecessary length of hose, clean all dirt off the fill holeplug and surrounding area, and then remove the plug.Check to see that the meter is on zero, insert the controlvalve nozzle into the fill hole, and squeeze the valvelever. After the required quantity of motor or gear oilhas been dispensed, release the lever. Reinstall the plugyou removed earlier. Clean the control valve nozzle,reset the meter to zero, turn counterclockwise, and storethe hose and valve.For gauging and inflating tires, an air gauge withtwo sizes of air chucks is in the storage cabinet. Thegauge has a pin fitting that snaps into the air hosecoupler. When inflating tires, release the gauge lever tocheck the pressure of the tire; depress to inflate the tire.Safetyl Always have a firm metal-to-metal contact whenfilling the fuel tank.l Never stand directly in front of a tire when it isbeing inflated. Stand to one side.l Always pipe the exhaust fumes to the outsidewhen operating the lubricator in an enclosed area.. Never fill the fuel tank while the engine isrunning.. Never direct a jet of compressed air at yourselfor anyone else.l Always stop all operations of a unit beforeservicing it.l Always use Navy-approved solvents forcleaning.l Always relieve all pressures before servicing anycomponent of the lubricator.. Always check the engine and the compressorcrankcase oil level at the start of each workday.. Always review the Material Safety Data Sheet(MSDS) for every hazardous material, fuel, lubricant,and solvent before use for precautions and hazards.. Always dispose of greases, oils, and contami-nated materials in an environmentally responsiblemanner.PUMPSA pump uses the mechanical energy produced by itsprime mover to move liquid from one point to another.The pump moves the liquid by either pushing, pulling,or throwing. Pumps are often named or classified by theaction that causes fluid movement; for example,diaphragm or centrifugal.Regardless of its design or classification, each pumphas a power end and a liquid end. The power end issome form of prime mover, such as an electric motor,internal combustion engine, or steam turbine. Insteam-driven pumps, the power end is often referred toas the steam end. The basic purpose of the power endis to develop the mechanical motion or force requiredby the liquid end.In the liquid end, mechanical motion, developed bythe prime mover, is exerted on the liquid. This part ofthe pump must allow for suction (where the liquid entersthe pump) and for discharge (where the liquid leaves thepump). The liquid end is often referred to as the pumpend, the water end, or the oil end to show the nature ofthe substance pumped.Diaphragm PumpThe diaphragm pump (fig. 14-33) uses a flexiblediaphragm to move liquid. The prime mover isusually a small gasoline engine with an eccentricconnecting rod arrangement that converts rotarymotion to reciprocating motion. On the suction stroke,the diaphragm is drawn upward into a concaveconfiguration. This movement of the diaphragm resultsin a partial vacuum that causes the suction ball valve to14-28
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