How To Change The Trigger Assembly On A Dwalt Nailer 51844

How practice I Repair a Dewalt D51844 Nail Gun?

The D51844 is a framing nailer capable of driving up to a 3 ½ inch long full round common nail. Every bit with most air nailers, when properly maintained DeWalt framing nailers will give years of problem-free service.

Most tool boxes accept the tools required to repair DeWalt blast guns.

The virtually common problems, other than uncomplicated troubleshooting, are caused by one of ii parts, the driver cylinder or the trigger valve. Both of these units are sealed with rubber O rings that control the release of pressure from the nailer. Worn O rings or a damaged valve or commuter cylinder tin can cause erratic firing, or cause the gun non to part at all. You lot can buy both the O rings and the unabridged assembly for both parts from DeWalt.

Trigger Valve Assembly

Disconnect the gun from the air hose. Locate the roll pin directly in a higher place the trigger. Lay the gun on its left side and use a small metallic punch and ballpeen hammer to drive the roll pivot out, until the trigger machinery is loose. Remove the trigger to expose the front of the trigger valve.
Pull the valve assembly from the nailer's handle, pulling toward the tip of the gun. Inspect the valve and O rings, looking for wear on the rings and cracks or splitting in the plastic valve. If the valve appears undamaged and the trigger has been easily returning to its original position after firing, replace simply the O rings. If there is apparent damage to the valve, or the trigger has malfunctioned, replace the entire assembly.
Fit new O rings onto the valve body and apply oil to the rings with a cotton wool swab, or apply oil to the rings on the new valve, depending on your repair option. Fit the valve back into the nailer handle, adjustment the grooves on the valve with the opening for a proper fit. Press the valve all the way in.
Fit the trigger back in place and utilise the metallic punch and hammer to reset the gyre pivot, with gentle taps, to movement the pivot slowly to avoid bending the pin or dissentious the head. Reconnect the air hose and return the tool to normal use.

Commuter Cylinder Service

Disconnect the nailer from the air hose. Remove the four screws holding the square vent to the back of the gun. Use an allen key and plough the screws counterclockwise to remove them. Lift the embrace from the rear of the gun.
Push a thin metal rod through the fastener port in the tip of the gun to push button the commuter cylinder out the dorsum of the gun. Audit the cylinder and O rings as previously outlined for the trigger valve. Inspect the metal driver also, looking for bends, grooves or crude edges. Supercede the O rings, the O rings and cylinder or the O rings cylinder and driver, depending on the damage you discover.
Insert the cylinder into the gun. Marshal the notches to the nailer torso for correct fit and printing the cylinder all the style home. Reinstall the rear vent and install the four mounting screws, tightening them with the allen key. Reattach the air hose and return the gun to normal use.

The Drip Cap

The D51844 is a framing nailer capable of driving up to a three ½ inch long full round common blast.
Worn O rings or a damaged valve or commuter cylinder can cause erratic firing, or cause the gun not to role at all.
Lay the gun on its left side and use a pocket-sized metallic punch and ballpeen hammer to bulldoze the coil pin out, until the trigger mechanism is loose.
If the valve appears undamaged and the trigger has been easily returning to its original position afterward firing, replace only the O rings.
Press the valve all the way in.
Disconnect the nailer from the air hose.
Remove the iv screws holding the square vent to the back of the gun.