![]() Threads: Metric Coarse, Imperial.Product Details Includes 10-Piece of each of the following rivet nuts: M5, M6, M8, 10-24, 1/4-20 and 5/16-18. Nutserts are permanently installed into a drilled or punched hole using a pneumatic or hand-powered rivet nut tool. Jaws are dirty or the nosepiece is loose.įires right when the air hose is connected and air is turned on.Nutserts (Rivet Nuts) Nutserts (Rivet Nuts) are female thread (nut) used in thin sheet metal or areas with no access behind the sheet. Also, look for loose connections.īlockage in jaws, potentially a stuck mandrel.Ĭlean the jaw components, but do not lubricate the jaw’s “teeth” that hold the mandrel. Examine the compressor’s regulator setting and set the air pressure to 90 psi (6.2 bar). If the problem continues, take the machine apart and clean and lubricate the internal parts except for the jaws.Įnsure the compressor has the correct CFM rating for the air rivet gun. Ensure the air is at 90 psi (6.2 bar) and air lines are not tangled.Įxamine and fix the trigger or replace it.Ĭlear blockage by opening the air inlet and removing any debris.įlush rivet gun with gum solvent. Then lubricate all components except for the jaws.Įxamine the air compressor and air hoses. Issueĭirt and shavings accumulated in the jaws or jaw assembly cover.ĭisassemble the jaw assembly and clean each component. However, if a part needs replacement, check first with the air rivet gun’s manufacturer. Most fixes involve clearing debris from the airline, air cylinder, or jaw assemblage or applying lubrication where needed. The following table covers common issues pneumatic rivet guns encounter, what these issues may indicate, and how to fix them. It is unlikely the air cylinder will need relubrication during its lifetime, but this examination should still be a part of regular maintenance. Even if the air cylinder is initially lubricated, periodically inspect this area to check if the lubricant is still there or has worn off. Use a tool to push the piston down and apply lubricant to the inside of the cylinder. If this is not the case, unscrew the bottom cap of the air cylinder. Air cylinder: Most pneumatic rivet guns come from the factory with lubrication in the air cylinder.The distance from the front of the assembly to the threaded area on the rivet gun’s body should be the same as the distance indicated on the specialized wrench that comes with the rivet gun. Periodically remove the jaw assembly cover to determine whether the jaw assembly is aligned correctly. If not aligned properly, the jaw assembly cannot effectively pull rivet mandrels to install rivets. Jaw assembly: Over time, the jaw assembly can slip from its position.If using the tool continuously throughout a day or several days, lubricate the tool every 1-2 hours. If using the tool over several days, lubricate at the beginning of each day. General lubrication: To manually lubricate a pneumatic rivet gun, put 3 to 4 drops of air tool oil in the gun’s air inlet before the air hose is connected.Or, lubricate it manually with air tool oil. ![]() Use a fogger, FRL unit, or oiler to lubricate an air rivet gun. Routine maintenance includes proper lubrication and inspection of the jaw assembly and air cylinder. With regular maintenance, a pneumatic rivet gun can last many years. Important components not visible in this image but discussed in this article: jaw assemblage, jaws, plunger, spring, valve, and piston. The piston (not visible in Figure 2) within the air cylinder moves upward, which operates the components in the jaw assemblage.įigure 2: An air rivet gun and components: nose piece (A), jaw assemblage cover (B), capture cup (C), trigger (D), air inlet (E), and air cylinder (F). When the user compresses the trigger (Figure 2 labeled D), the valve (not visible in Figure 2) at the air inlet (Figure 2 labeled E) opens to allow air to flow into the air cylinder (Figure 2 labeled F). ![]() If a pneumatic rivet gun does not have a capture cup, the user tilts the gun downward to drop the mandrel from the jaw assemblage. The capture cup (Figure 2 labeled C) at the back of the rivet gun catches mandrels when they break off the rivet. ![]() Spring: The spring pushes the plunger forward towards the jaws when the user is not pulling the trigger.Plunger: The plunger has a v-shaped head, which presses against the jaws to open them when the user is not pulling the trigger.Jaws: The jaws grip the mandrel and pull it back to break it off the pop rivet during installation.The jaw assemblage contains the jaws, a plunger, and a spring. The jaw assemblage cover (Figure 2 labeled B) protects the jaw assemblage (not visible in Figure 2) from debris. The nose piece (Figure 2 labeled A) holds the pop rivet. Pneumatic rivet guns typically come with multiple nose pieces for differently sized rivets. View our online selection of pneumatic rivet guns!Īn air rivet gun has several components.
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