Silverline Gravity Feed HVLP Spray Gun - Manual (Page 7)

6
GB
Intended Use
• Atomising gravity feed spray gun, powered by filtered compressed air from a
compressor, for spraying of medium viscosity paint and coatings at low pressures
• Compared to conventional spray guns, HVLP (High Volume Low Pressure) spray guns
use a higher volume of air to atomise the paint at much lower air pressures. As a result,
a higher proportion of paint reaches the workpiece surface, and overspray, material
consumption as well as air pollution, are greatly reduced.
Unpacking Your Tool
• Carefully unpack and inspect your tool. Fully familiarise yourself with all its features
and functions
• Ensure that all parts of the tool are present and in good condition. If any parts are
missing or damaged, have such parts replaced before attempting to use this tool
Before Use
Fitting the quick connector
Note: This tool is supplied with two different male airline quick connectors:
EQ-4 – commonly used in Europe
EN-6 – mainly used in the UK
• Please choose the connector that is compatible with the airline system you are using,
and install as outlined below:
1. Apply PTFE tape (not included) to the screw threads of the Quick Connector (7). This
will help to maintain an air tight seal
Note: Apply PTFE tape tightly and in a clockwise direction, so it does not come off when
the thread is screwed into the tool.
2. Remove the protective plug from the air inlet
3. Using a spanner (not included) screw the quick connector into the air inlet located at
the base of the handle
4. Connect to airline, pressurise carefully and carry out a leak check (e.g. by spraying
small amounts of soapy water on to the outside of the connectors)
• Air lines fitted with matching female quick connectors will now be a push fit to the tool
Fitting the paint container
• Before fitting the gravity feed Paint Container (2), pull out the plastic filter element that
sits inside the paint container connection of the spray gun, clean if necessary (see
‘Maintenance’) and inspect for damage
• Fit the paint container by screwing it in to the opening on top of the spray gun. Tighten
by hand
Note: Always inspect the O-ring on the paint container thread, and ensure it is in good
condition. Change if required.
Air supply connection
• This tool should be connected to a clean, dry air supply with water separator and filter
WARNING: Under no circumstances can the spray gun be used in a compressed air system
with integrated oiler.
Note: Achieving a fine spray finish without the use of a high quality separator filter is
virtually impossible.
• Do not allow supply pressure to exceed the maximum stated (see ‘Specifications’)
• Ensure that water is drained from air system daily
• Ensure that all parts of the system (hoses, couplers, etc.) are correctly rated for the air
pressure to be used
• Do not use non-conductive tubing to help prevent build-up of electrostatic charge
Setting the air pressure
• Spray pressure must be set properly to allow for the drop in air pressure between the
regulator and the spray gun
• Use recommended hose diameter to minimise pressure drop and adjust supply air
pressure according to ‘Specifications’
IMPORTANT: To reduce overspray and in order to obtain maximum efficiency, always spray
with the lowest possible air pressure.
Paint preparation
WARNING: Ensure the type of paint, solvent used and the viscosity is suitable for the
material and type of this spray gun.
• Mix, condition and filter the material to be sprayed according to the manufacturer’s
recommendations
• Refer to the manufacturer’s guidelines for storing and disposal of prepared material
Filling the paint container
1. Ensure the spray gun is disconnected from the air supply
2. Unscrew the Paint Container Lid (1)
3. Fill the paint container to the required level
Note: The outside of the paint container features a scale in ml. Never overfill (see
‘Specifications’ for max. paint container capacity).
4. Re-fit the lid of the paint container. Close tightly by hand
Note: The lid features a small hole for pressure equalisation and is therefore not
completely sealed. Take care not to spill material through this hole. Always ensure the hole
remains clean and unblocked.
Adjusting the spray gun
• Bring the spray gun into the default position:
1. Carefully screw the Knurled Needle Adjustment Screw (4) clockwise until it stops
Note: The needle adjustment screw features a separate knurled locking ring that needs to
be loosened before adjustment is possible. Tighten this ring to lock the needle adjustment.
WARNING: The paint needle can easily be damaged. Be careful not to use too much force.
2. Carefully screw the Knurled Air Adjustment Screw (8) clockwise until it stops
WARNING: DO NOT use too much force, as this may damage the valve seat.
3. Turn the Pattern Adjustment Dial (5) clockwise until it stops
4. Loosen the Air Nozzle Locking Ring (12) about a quarter turn, to allow the Air Nozzle
(11) to be adjusted
Adjust the material output:
1. Connect the spray gun to the air supply
2. Direct the gun towards a large piece of cardboard or similar material
3. Hold the spray gun steady and depress the Trigger (9)
Note: In default position, there should be no material or air output.
4. Turn the Knurled Air Adjustment Screw (8) anticlockwise to set the required air flow
5. Slowly turn the Knurled Needle Adjustment Screw (4) anticlockwise to open the
material flow
6. Adjust until the desired material output is reached
Pressure
regulator
Spray gun
Air line
Separator
filter unit
1 Paint Container Lid
2 Paint Container
3 Hanging Hook
4 Knurled Needle Adjustment Screw
5 Pattern Adjustment Dial
6 Handle
7 Quick Connector
8 Knurled Air Adjustment Screw
9 Trigger
10 Material Nozzle
11 Air Nozzle
12 Air Nozzle Locking Ring
Product Familiarisation
EQ-4
Europe
EN-6
UK
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