SIEGEN S775 - User Manual

The S775 is a well balanced spray gun which is suitable for primer and undercoat. Supplied with an
aluminium suction feed pot, the gun has the following specification:
Instructions for:
SUCTION FEED SPRAY GUN
Model: S775
Thank you for purchasing a Siegen product. Manufactured to a high standard this product will, if used according to these instructions and
properly maintained, give you years of trouble free performance.
Standard Set-up: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Ø1.8mm
Operating Air Pressure: . . . . . . . . . . . . . . .3.5 - 4.5 bar (50 - 65psi)
Air Consumption: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 - 15cfm
Pot Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 litre
Air Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/4"BSP
2. SPECIFICATION
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS,
WARNINGS AND CAUTIONS. USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS
INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE
WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
! Familiarise yourself with the application and limitations, as well as the potential hazards of the spray gun.
" WARNING! Disconnect the spray gun from the air supply before changing accessories, servicing or performing any maintenance.
! Maintain the spray gun in good condition (use an authorised service agent).
! Replace or repair damaged parts. Use recommended parts only. Unauthorised parts may be dangerous and will invalidate the warranty.
! Locate the spray gun in a suitable work area, keep area clean and tidy and free from unrelated materials, and ensure that there is adequate
ventilation and lighting.
! Keep the spray gun clean for best and safest performance.
! Ensure that the air system has sufficient output for the spray gun air consumption (see specification).
! Wear approved respiratory protection, safety eye goggles and skin protection.
! Remove ill fitting clothing. Remove ties, watches, rings and other loose jewellery and tie back long hair.
! Keep children and unauthorised persons away from the work area.
! When gun is not in use ensure that the air supply is disconnected.
! Avoid unintentional operation.
# DO NOT paint were there is any source, or possible source, of ignition as paint mist is extremely flammable.
# DO NOT point spray gun at yourself or at other persons or animals.
# DO NOT carry the gun by the air hose, or yank the hose from the air supply.
# DO NOT use the spray gun for any purpose other than that for which it is designed.
# DO NOT allow untrained persons to operate the spray gun.
# DO NOT get the spray gun wet or use in damp or wet locations or areas where there is condensation.
# DO NOT operate gun if any parts are missing or damaged as this may cause failure and/or personal injury.
# DO NOT direct air from the air hose at yourself or others.
! When not in use switch off the air supply and disconnect the spray gun.
3. AIR SUPPLY
4. PREPARATION
3.1. Ensure that the air valve is in the "off" position before connecting to the air supply.
3.2. You will require an air pressure of approximately 60psi and an air volume of more than 12cfm to operate the gun.
" WARNING! Ensure the air supply is clean does not exceed 90psi. Too high an air pressure and unclean air will shorten the
life of the gun due to excessive wear and may be dangerous, causing damage and/or personal injury.
3.3. Drain the air supply tank daily. Water in the air line will damage the gun and contaminate the paint.
3.4. Clean the compressor air inlet filter weekly. For recommended hook-up, see diagram.
3.5. Line pressure should be increased to compensate for unusually
long air hoses (over 8 metres). The minimum hose bore
should be 10mm and fittings must have the same
inside dimensions.
3.6. Keep hose away from heat, oil and sharp
edges. Check hoses for wear, and make
certain that all connections are secure.
The gun was treated with an anti-corrosion agent to protect it prior to first use. Before first use make sure that the gun is flushed with paint
solvent to remove the agent.
" WARNING! Solvents and cleaning agents based on halogenated hydrocarbons, e.g. 1.1.1-trichlorethylene and methylene chloride, may have
a chemical reaction with the aluminium components of the gun. In extreme cases the reaction can be explosive. Therefore, use only
solvents/cleaning agents which DO NOT contain these substances.
S775 - 1 - 030702
Siegen

Summary

Safety Instructions

General Safety Precautions

Familiarize yourself with hazards, maintain the gun, keep it clean, and ensure adequate air supply.

Personal Protective Equipment

Wear approved respiratory protection, safety eye goggles, and skin protection.

Prohibited Actions and Warnings

Avoid painting near ignition sources, pointing at people, or using unauthorized parts.

Specifications

Standard Setup and Performance

Details on nozzle size, air pressure, consumption, pot capacity, and air connection.

Air Supply

Air Supply Connection and Pressure

Ensure correct air valve position, pressure (60psi), and volume (>12cfm). Avoid exceeding 90psi.

Air Line Maintenance

Drain air tanks daily and clean compressor air inlet filters weekly.

Hose and Fitting Requirements

Compensate line pressure for long hoses, ensure 10mm bore, and secure connections.

Preparation

Initial Flushing

Flush gun with paint solvent to remove anti-corrosion agent before first use.

Solvent Warning

Avoid halogenated hydrocarbon solvents due to potential explosive reaction with aluminium.

Operating Instructions

Gun Handling and Technique

Hold gun perpendicular, move parallel, start/end stroke before trigger actuation.

Spray Distance and Overlap

Spray 6-10 inches away, ensure even wet coverage, and overlap strokes for uniform finish.

Pattern and Flow Control

Adjust paint flow with knob, set air input to lowest effective, and orient air cap for fan spray.

Cleaning & Maintenance

Gun Cleaning Procedure

Flush with solvent, clean nozzle with brush, wipe exterior. Do not immerse gun or nozzle.

Maintenance and Reassembly

Lubricate daily, use correct parts, avoid cross-threading, and exchange nozzle sets together.

Troubleshooting

Spray Pattern Issues

Address issues like uneven spray, split spray, or spitting caused by blockages or worn parts.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Siegen S775 is a suction feed spray gun designed for various painting applications, particularly suitable for primer and undercoat. It is manufactured to a high standard, promising years of trouble-free performance when used and maintained correctly.

Function Description

The S775 spray gun is designed to apply paint evenly and efficiently. It operates by drawing paint from an aluminium suction feed pot and atomizing it with compressed air to create a fine spray. The gun offers control over paint flow, fan spray pattern (horizontal, vertical, and round to flat variations), and atomizing air pressure, allowing users to achieve optimal coverage and finish. The fan-shaped pattern, when oriented vertically, is particularly effective for back-and-forth movements parallel to the work surface.

Important Technical Specifications

• Standard Set-up: Ø1.8mm
• Operating Air Pressure: 3.5 - 4.5 bar (50 - 65psi)
• Air Consumption: 12 - 15cfm
• Pot Capacity: 1 litre
• Air Connection: 1/4"BSP

To operate the gun effectively, an air pressure of approximately 60psi and an air volume of more than 12cfm are required. The air supply should not exceed 90psi to prevent excessive wear and potential damage.

Usage Features

• Ergonomics and Control: The gun is designed to be well-balanced and handled correctly, held perpendicular to the surface and moved parallel to it. The stroke should start before squeezing the trigger and end after releasing the trigger for precise control.
• Spray Distance: Optimal spray distance is typically 6 to 10 inches, depending on the material and atomizing pressure, to ensure an even and wet paint deposit. Each stroke should overlap the preceding one for a uniform finish.
• Paint Flow Adjustment: The paint control knob (fig. 2.B) allows users to increase or decrease the paint flow.
• Air Input Control: The air input control (fig. 2.C) should be set to the lowest effective flow for maximum efficiency and to reduce over-spray.
• Fan Spray Adjustment: The air cap (fig. 3.1) can be turned to achieve either a horizontal or vertical fan spray and is locked with a retaining ring (fig. 3.2). The spray pattern is variable from round to flat, controlled by the pattern knob (fig. 2.A).
• Safety Precautions:
  • Always familiarise yourself with the gun's application, limitations, and hazards.
  • Disconnect from the air supply before any maintenance or accessory changes.
  • Maintain the gun in good condition and use only recommended parts.
  • Operate in a well-ventilated, clean, and tidy work area with adequate lighting.
  • Wear approved respiratory protection, safety eye goggles, and skin protection.
  • Remove loose clothing, ties, watches, rings, and tie back long hair.
  • Keep children and unauthorised persons away from the work area.
  • Never paint near ignition sources due to paint mist flammability.
  • Do not point the gun at people or animals.
  • Do not carry the gun by the air hose or yank the hose from the air supply.
  • Do not use the gun for purposes other than its design.
  • Do not allow untrained persons to operate the gun.
  • Avoid damp or wet locations and condensation.
  • Do not operate if parts are missing or damaged.
  • Disconnect the air supply when not in use.

Maintenance Features

• Initial Preparation: Before first use, the gun must be flushed with paint solvent to remove the anti-corrosion agent applied during manufacturing.
• Solvent Compatibility Warning: Crucially, only use solvents/cleaning agents that DO NOT contain halogenated hydrocarbons (e.g., 1.1.1-trichlorethylene and methylene chloride), as these can react explosively with the gun's aluminium components.
• Daily Air Supply Maintenance: Drain the air supply tank daily to prevent water in the air line from damaging the gun and contaminating paint.
• Weekly Compressor Filter Cleaning: Clean the compressor air inlet filter weekly.
• Post-Use Cleaning (Crucial):
  • Flush the gun thoroughly with solvent and clean the nozzle with solvent and a brush.
  • DO NOT immerse/soak the nozzle or the entire gun in solvent, as this can dissolve lubricants and packing.
  • Wipe the exterior of the gun with a solvent-dampened rag.
  • Use a probe softer than brass if orifices are blocked.
• Lubrication: Lubricate the gun daily with a light machine oil, focusing on the fluid needle packing, air valve packing, and trigger pivot point.
• Part Replacement: When changing nozzle size, ensure the complete nozzle set is exchanged, inserting the paint nozzle before the paint needle.
• Reassembly Care: Screw parts hand tight to avoid cross-threading. If a part doesn't turn easily, check alignment and try again without excessive force.
• Troubleshooting: Common issues like faulty spray patterns are often due to improper cleaning or dried material. Solutions typically involve dissolving material in side ports, cleaning the air cup and fluid tip, or tightening packing screws/replacing packing. Never use metal instruments to clean the air cup or paint nozzle, as damage will impair spray quality.

SIEGEN S775 Specifications

General

Brand	SIEGEN
Model	S775
Category	Paint Sprayer
Language	English