O-Rings

Since the nailer is disassembled, inspect the con- dition of the visible O-rings. If the O-rings show signs of wear and tear, they should be replaced. Inspect the surfaces where the O-rings seal for any possible rough spots which will erode the new O-rings. When replacing the O-rings, make sure that there is no dirt or grit in the groove where the O-rings seat. Do not stretch the O- rings or nick them on any sharp edges or burrs. If cleaning parts with a solvent, do not use a solvent that may deteriorate the O-rings.

To re-assemble the nailer:

1.Before replacing O-rings, lubricate them with a light grease that is non corrosive to rubber.

2.IMPORTANT: Carefully position the driver tip into the plastic driver insert from the top of the nailer. You may have to wiggle the driver so the main piston seats into the cylinder. G1861: the driver has a T-shaped cross sec- tion and will only fit one way. If the driver is not seating, do not force it. Remove the dri- ver unit, rotate 180°, and try to reinstall it.

Failure to repair or replace damaged or worn parts could result in poor performance and additional damage to other compo- nents of the gun. Take the time to make repairs immediately, rather than nursing along a damaged gun. Doing so will ensure maximum performance and dependability.

3.Replace the parts in the same order they were removed. See the parts diagrams if necessary. Tighten the cap screws sequen- tially. If the cap screws are not tightened evenly, the cap will not seat correctly, air will leak, and the nailer will not function. Ensure that the washers are installed under the cap screw heads.

4.Check all bolts to make sure they are tight and test the nailer to ensure that it works properly.

5.Do not put any fasteners into the magazine. Connect the air hose. Check for any leaking air. You will hear it hissing or feel it rushing through the spaces.

6.If everything sounds normal, press the safe- ty nose down on a piece of wood and pull the trigger a couple of times. Air should be exhausted normally each time.

DO NOT attempt to repair or service this gun without ensuring that all nails or sta- ples have been removed and that the gun is disconnected from its air source. Use extreme care when testing after freeing jams or after re-loading. Always wear approved safety glasses or goggles and quality hearing protection when operating pneumatic guns or other woodworking tools and machinery. Failure to do so could result in serious personal injury.

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G1847 / G1852 / G 1861 / G3811 Air Nailers/Staplers

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Image 13
Grizzly G1861, G1852, G3811 instruction manual Rings, To re-assemble the nailer