Stihl SG 20 Instruction Manual

Pages 36

Year 2019

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of 36

Stihl SG 20 Specification

The Stihl SG 20 is a manual backpack sprayer designed for efficient and comfortable use in various agricultural and horticultural applications. This durable sprayer features a lightweight yet robust design, making it suitable for extended use in diverse environments. It is constructed with high-quality materials to withstand frequent handling and resist potential chemical damage. The SG 20 offers a 4.75-gallon tank capacity, providing ample volume for large spraying tasks while minimizing the need for frequent refills.

The sprayer is equipped with a pressurized chamber that allows for consistent spray output, ensuring even distribution of liquids across target areas. Its ergonomic design includes adjustable shoulder straps and a contoured back pad, enhancing user comfort during prolonged use. The SG 20 also features a pump lever that can be easily adjusted for left or right-hand operation, accommodating user preference and improving maneuverability.

A key component of the SG 20 is its internal pump mechanism, which is designed to maintain a steady pressure level and reduce the effort required for manual pumping. The sprayer includes a durable wand with a brass nozzle that offers adjustable spray patterns, ranging from a fine mist to a targeted stream, allowing for versatile application techniques.

The Stihl SG 20's maintenance and cleaning are straightforward, facilitated by its accessible design that allows easy disassembly and reassembly of parts. This manual backpack sprayer is an ideal choice for professionals and homeowners seeking reliability, ease of use, and effective performance in liquid application tasks.

Stihl SG 20 F.A.Q.

How do I properly assemble the Stihl SG 20 sprayer for first-time use?

To assemble the Stihl SG 20, first attach the harness to the main tank unit. Then, connect the spray wand to the hose and ensure all connections are tight. Fill the tank with water to test for leaks before adding any chemicals.

What should I do if the sprayer pump is not building pressure?

Check if the pump handle is properly engaged and the tank lid is sealed tightly. Inspect the pressure release valve for any blockage and ensure the pump cylinder is lubricated for smooth operation.

How can I clean the Stihl SG 20 after use to ensure longevity?

Empty the tank and fill it with clean water. Pump and spray the clean water through the system to remove any residue. Disassemble the spray wand and clean each component separately. Allow all parts to dry completely before reassembly.

What type of lubricants are recommended for maintaining the sprayer pump?

Use a silicone-based lubricant on the pump cylinder to prevent wear and tear. Avoid using petroleum-based oils as they can damage the seals and components.

How can I prevent the hose from kinking during operation?

Ensure the hose is fully extended before use and avoid sharp bends. Consider using hose guides or clips to keep the hose in place and reduce stress on the connections.

What should I do if the spray pattern is uneven or misaligned?

Inspect the nozzle for clogs or damage. Clean or replace the nozzle as necessary. Adjust the nozzle angle to ensure even coverage and check for any obstructions in the spray wand.

How often should I inspect the Stihl SG 20 for maintenance?

Conduct a thorough inspection before and after each use. Regular maintenance checks should be performed monthly, focusing on seals, hoses, and the pump mechanism, to ensure everything is in working order.

What is the correct procedure for winterizing the Stihl SG 20?

Empty the tank and sprayer completely. Add a small amount of antifreeze to the tank, pump it through the system, and store the sprayer in a dry, frost-free environment. This prevents any residual water from freezing and damaging the unit.

Can I use bleach solutions in the Stihl SG 20 for sanitation purposes?

Yes, but ensure that you thoroughly rinse the tank and all components with clean water after use to prevent corrosion or damage caused by bleach residues.

How do I replace the pump seal on the Stihl SG 20?

Disassemble the pump by removing the handle and unscrewing the pump cylinder. Remove the old seal and replace it with a new one, ensuring it is seated properly. Reassemble the pump components securely.