Instructions: Step 1: pull out the pull rod, make the piston in the cylinder close to the rear end cover, and then lock the pull rod Step 2: Lubricate the cartridge with grease (bulk butter or sealing butter), then screw on the front cover and unlock the lever Step 3: Install the tube/hose and gun mouth Step 4: Discharge the excess air from the barrel and start the operation. Note: When not in use for a long time, the remaining butter in the barrel should be poured out and cleaned to prevent sand and small stones from entering the grease gun, causing blockage.
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