Repair And Fix it

Pneumatic tools offer reliability and strength. An air gun uses very few moving parts. Air pressure moves pistons that generate the power. The only maintenance needed on an air gun, or pneumatic tool, is daily oiling if the tool is not self-oiling. The main goal of an air gun is to deliver a powerful tool capable of intense amounts of torque or pressure. The most common high-impact air tools are air hammers, air drills and impact wrenches.

Air Hammers

An air hammer is not an elegant tool. It is used to repeatedly deliver blows to an object. The hammer comes with a variety of tips to shape or smooth metals. An internal piston is actuated by the air pressure from an air compressor. The piston repeatedly shoots forward and back. The different tips determine what the movement accomplishes. A flat-head hammer tip allows a worker to create a curve in a piece of sheet metal. The flat-head condenses and spreads out the metal as the piston hammers the ball into the surface of the metal. Chisel tips can be used to chip away at brick or stone, or to gouge metal.

Air Drills

Air drills use air pressure to generate high levels of rotation comparable to battery-operated drills. The tool is weaker than the electrical variation but is less likely to break down due to the limited number of moving parts. The tool delivers steady rotation regardless of the material. Electric drill motors can snag up in tough materials. Air drills are available in a standard gun style, similar to electric, and hand-held variations similar to electric screwdrivers. The tool has a quick-release connection on some models, or the standard chuck-key connection that requires a specific tool to unlock the bit.

Impact Wrenches

Impact wrenches are the most common type of high-impact air guns. An impact wrench combines the elements of an air hammer with an air drill. Rather than just spinning a gear, the tool delivers air pressure to an internal hammer that builds up briefly before spinning the gear. The rapid discharge of stored pressure or energy translates to high-torque rotation. Impact wrenches work best on stubborn or damaged bolts. The manual equivalent to this tool would be to place a wrench on a bolt and hammer at it with a sledge hammer. The tool, like all air guns, is reliable with minimal moving parts. The only maintenance necessary is to oil the tool daily. The oil prevents the internal pistons and gears from becoming sticky or dry.

There are four likely causes that an oil gauge on a Harley might indicate high oil pressure. Two of the causes are literally connected to the oil tank. In order of probability from most to least, your oil pressure gauge is faulty or the electrical connection is loose; your crankcase vent line is clogged; either your oil return or your oil feeder line is kinked or blocked; or finally, your oil tank is overfilled. Work the problem in a few steps.

Instructions

1

Drain the oil from your oil tank into a drain pan by loosening the hose clamp on you drain line with a screwdriver and removing the oil drain plug with a pair of pliers. Replace the plug and drain line after the oil drains from the oil tank.

2

Remove the oil filter from the front of your bike with an oil filter wrench. Drain the oil from the filter into the drain pan.

3

Discard the old oil filter and install a new filter hand tight onto the oil filter stud.

4

Follow the wires from your oil pressure gauge top the crankcase and check for loose connections or an obviously defective wire.

5

Inspect the oil feeder and oil return line from the crankcase to the oil tank. Physically remove the lines by unfastening any hose clamps with a screwdriver and any permanent fittings with an open end wrench.

6

Stick a wire through the length of the hoses to ensure the hoses are not clogged. Replace the two oil lines.

7

Follow the oil vent line from the top of the oil tank next to the return line to the crankcase. Remove the line from the crankcase with an open end wrench. Pull the line out of the oil tank with your hands.

8

Sick a wire through the vent line to ensure it is not clogged. Replace the vent line with an open end wrench.

9

Add the appropriate amount of oil, either 3 or 4 quarts, to the oil tank as specified in the owners manual for your Harley. Turn over the motorcycle for about 15 seconds.

10

Remove the fill plug and read the dipstick to ensure the oil level reads full. Start the motorcycle and check the oil gauge. If the gauge still indicates that your oil pressure is too high the gauge is probably defective.