⚠️ Before installation, it is necessary to confirm that the nozzle interface matches the specifications of the water supply pipeline completely, and avoid forcefully twisting the metal threads throughout the process to prevent interface slippage and water leakage.
📋 Preparation before installation
Component verification: Check that all accessories of the metal rocker arm nozzle, such as the rocker arm, guide plate, spring, nozzle, etc., are not damaged or bumped, and that the rotating parts are not stuck.
Tools and materials: Prepare wrenches, raw tape, screwdrivers, measuring tapes, and clean the installation area of stones and weeds in advance to avoid obstruction of subsequent nozzle rotation.
.Layout planning: Determine the nozzle location based on the irrigation area, and control the distance between adjacent nozzles at about 80% of the range to ensure that there are no blind spots for spraying.
.🏗️ Fixed spray rack and base
Insert the spray rack into the ground or fix it on a precast concrete base, adjust the joint end face of the spray rack to be completely horizontal, and lock the spray rack with a ground anchor or expansion bolt to avoid water pressure from tilting the nozzle after water is supplied. After installation, manually rotate the nozzle to confirm that the overall rotation is unobstructed and not loose, ensuring smooth operation in the future.
🔩 Installation of nozzle body
Install the rocker arm onto the rocker arm shaft of the nozzle, ensuring that the rocker arm can swing freely and will not loosen. Place the guide plate on the front end of the rocker arm to ensure accurate reception of water flow and tangential driving force.
Open the rocker arm and check the tightness. If it is too tight, drop a small amount of oil at the shaft to reduce drag. If it is too loose, adjust the locking screw of the rocker arm shaft to avoid stalling during subsequent rotation.
.Wrap the raw material tape around the thread of the nozzle inlet, align it with the pipeline quick connector and tighten it. Wipe the interface clean and confirm that there is no dripping after water is supplied.
.⚙️ Function debugging and testing
Adjusting nozzle speed: By tightening/loosening the rocker arm spring or turning the adjustment screw to change the depth of the rocker arm head entering the water, control the nozzle speed at 1-2 revolutions per minute to avoid excessive speed causing a significant reduction in range.
Set fan-shaped irrigation as needed: If 360 ° full circle spraying is not required, a limit device and reversing gear can be installed on the nozzle to adjust the angle between the two limit blocks. After the nozzle rotates to the set angle, it will automatically reverse and achieve fan-shaped irrigation in the designated area.
.Water test run: Start the irrigation system, observe whether the nozzle rotates evenly and stably, whether there is any abnormal vibration, check whether the actual spraying range and coverage range meet the design requirements, and adjust the nozzle angle to correct the problem of uneven spraying.
.📌 Daily maintenance points
After each irrigation, clean the sediment and impurities at the nozzle to avoid long-term blockage and range deviation. Add a small amount of lubricating oil to the rocker arm shaft every 3 months to reduce metal component wear and significantly extend the service life of the nozzle.