1. Product Overview
The Hunter PGP-adj Rotor Sprinkler Head is a highly reliable and durable irrigation component designed for efficient water distribution. This package includes 20 PGP-adj rotor sprinkler heads, 20 red nozzle racks, and two adjustment keys, providing a complete solution for establishing or expanding an irrigation system.
Image 1.1: Contents of the Hunter PGP-adj Rotor Sprinkler Heads package, showing 20 black rotor sprinkler heads, 20 red nozzle racks, and two white adjustment keys.
Key Features:
- Adjustable Arc Setting: Capable of adjusting from 40 to 360 degrees, allowing precise coverage.
- Top Adjustment: Easy adjustment of arc settings from the top of the sprinkler, whether wet or dry.
- Water-Lubricated Gear Drive: Ensures reliable and consistent rotation over time.
- Large Filter Screen: Designed to trap debris effectively, preventing clogging and maintaining performance.
- Durable Construction: Made from plastic, engineered for longevity in various outdoor conditions.
2. Setup and Installation
Proper installation is crucial for the optimal performance of your Hunter PGP-adj rotor sprinkler heads. Follow these guidelines for setup.
2.1. Components Check
Before beginning installation, ensure all components are present:
- PGP-adj Rotor Sprinkler Heads (20 units)
- Red Nozzle Racks (20 units)
- Adjustment Keys (2 units)
2.2. Installation Steps
- Prepare the Location: Dig a trench for the lateral piping and a hole for each sprinkler head, ensuring the top of the sprinkler will be flush with the ground level when installed.
- Connect to Piping: Thread the sprinkler head onto the riser from the lateral pipe. Ensure a watertight seal.
- Install Nozzle: Select the appropriate nozzle from the red nozzle rack based on your desired spray pattern and radius. Insert the nozzle into the sprinkler head.
- Backfill: Carefully backfill the soil around the sprinkler head, ensuring it remains vertical and at the correct height.
3. Operating Instructions
The Hunter PGP-adj rotor sprinkler heads are designed for easy adjustment to optimize your irrigation system's performance.
3.1. Arc Adjustment
The arc setting determines the range of rotation for the sprinkler head, from 40 to 360 degrees.
- Identify Adjustment Slot: Locate the adjustment slot on the top of the sprinkler head.
- Insert Adjustment Key: Insert the flat blade end of the adjustment key into the arc adjustment slot.
- Adjust Arc:
- To increase the arc, turn the key clockwise.
- To decrease the arc, turn the key counter-clockwise.
The sprinkler can be adjusted while running or static. The arc can be set between 40 and 360 degrees.
3.2. Radius Adjustment
The radius adjustment screw allows you to decrease the spray distance of the sprinkler.
- Locate Radius Screw: Find the radius adjustment screw on the top of the sprinkler head, typically near the nozzle.
- Adjust Radius: Turn the adjustment key clockwise into the radius reduction screw to decrease the spray distance. Turning it counter-clockwise will increase the spray distance.
- Maximum Reduction: The radius can be reduced by up to 25% from its original setting.
4. Maintenance
Regular maintenance ensures the longevity and efficient operation of your Hunter PGP-adj rotor sprinkler heads.
4.1. Filter Screen Cleaning
The extra-large filter screen helps prevent debris from clogging the nozzle. Periodically inspect and clean the filter screen.
- Turn Off Water Supply: Before performing any maintenance, ensure the water supply to the sprinkler system is turned off.
- Remove Sprinkler Top: Carefully unscrew the top of the sprinkler head.
- Access Filter Screen: The filter screen is located at the base of the riser assembly.
- Clean Screen: Remove the screen and rinse it thoroughly under running water to remove any accumulated debris.
- Reassemble: Reinsert the clean filter screen and screw the sprinkler top back on securely.
4.2. Winterization
In regions subject to freezing temperatures, proper winterization is essential to prevent damage to the sprinkler heads and system.
- Drain System: Completely drain all water from the irrigation system, including the sprinkler heads and pipes.
- Blow Out System: Use an air compressor to blow out any remaining water from the lines. Consult a professional if unsure about this procedure.
- Inspect for Damage: Before winter, inspect sprinkler heads for any cracks or damage that could worsen with freezing.
5. Troubleshooting
This section addresses common issues you might encounter with your Hunter PGP-adj rotor sprinkler heads.
| Problem | Possible Cause | Solution |
|---|---|---|
| Sprinkler not rotating | Clogged filter screen or nozzle; insufficient water pressure; damaged gear drive. | Clean filter screen and nozzle (refer to Section 4.1); check water pressure at the source; inspect for physical damage and replace if necessary. |
| Uneven water distribution | Incorrect nozzle selection; improper arc or radius adjustment; low water pressure. | Verify correct nozzle for application; adjust arc and radius settings (refer to Section 3); ensure adequate water pressure. |
| Water leaking from base | Loose connection to riser; cracked sprinkler body. | Tighten connection to riser; inspect sprinkler body for cracks and replace if damaged. |
| Sprinkler not popping up | Debris around the riser; low water pressure; damaged spring. | Clear debris from around the sprinkler head; check water pressure; replace sprinkler if spring is damaged. |
6. Specifications
Detailed specifications for the Hunter PGP-adj Rotor Sprinkler Heads.
- Model: PGP-adj
- Brand: Hunter
- Material: Plastic
- Style: Rotary
- Arc Setting: 40 to 360 degrees
- Number of Items in Package: 20 Rotor Sprinkler Heads, 20 Nozzle Racks, 2 Adjustment Keys
- Package Dimensions: 13.15 x 12.44 x 8.19 inches
- Item Weight: 12.72 pounds (for the 20-pack)
7. Support Information
For further assistance or technical support regarding your Hunter PGP-adj Rotor Sprinkler Heads, please refer to the manufacturer's official resources.
Manufacturer: Hunter Industries
Official Website: www.hunterindustries.com
Please visit the Hunter Industries website for detailed product documentation, FAQs, and contact information for customer service.
