Paasche Airbrush VL/VLS-PL - Manual (Page 3)

Paasche® VL & VLS Double Action Airbrushes Page 3
REMOVING/REPLAClNG THE NEEDLE AND HANDLE (Illustration A):
1. Unscrew the handle and loosen the Locknut #34 by turning counterclockwise. Depress the Trigger #7 and hold in Down position while
removing or inserting the needle. This assures the needle moves freely through the trigger. Gently remove the needle, rotating if necessary,
Do NOT force out!
2. A loose needle can cause sputtering if there is any air leakage around the needle and Packing & Nut Assembly #19. If there is no
noticeable drag on the needle by the packing, then tighten the Nut of the Packing & Nut Assembly #19.
3. Inspect the condition of the needle. If it is bent or misshapen in any way, replace it with a new needle. A bent needle can damage or split the
Tip #3 causing bubbles or a rough spray pattern.
4. Hold trigger in DOWN position, insert the new needle into the Rocker Assembly #28. Gently push needle through, rotating if necessary.
until the needle stops in the front of the tip.
5. Release trigger and tighten locknut by turning clockwise.
REPLACING THE TRIGGER (Illustration D-1):
If the Trigger #7 is removed, it must be replaced inside the airbrush shell, before the Rocker Assembly #28 and needle are re-inserted.
1. Hold the trigger so the opening in the lever is in-line with the opening in the end of the airbrush shell and the flat side of the trigger stem is
to the rear. (see D-1).
2. Insert trigger so the bottom of the stem covers the round top of the valve plunger.
3. Once the trigger has been inserted into the slot on the top of the shell, you will be able to press down on the trigger and it will return to the
up position when released. Proceed to replace rocker assembly and balance of parts as above. The needle when inserted will prevent the
removal of the trigger.
REPLACING THE TIP:
1. Remove handle, loosen Locknut #34 and withdraw needle about one inch (1").
2. Un-screw the Head #2 and remove. The Tip #3 can now be easily removed by hand. If stuck in shell tap lightly with wrench.
3. Place a new tip into position and tighten head to shell with a wrench. Push needle forward until it seats fully forward in tip and tighten
locknut.
ADJUSTING OR REPLACING WORN PACKING WASHER:
1. If PTFE Packing #19 becomes worn or loose it must be tightened or replaced.
2. You will need a small screwdriver to remove or tighten the Packing Nut #19.
3. When replacing your PTFE Packing press packing onto the Packing Nut #19. Use a small screwdriver to tighten packing nut into shell until
it is tight then back out one-half turn, may vary.
4. Now insert needle - you should feel a slight resistance. If too loose or too tight adjust the packing nut with screwdriver until you feel some
slight resistance.
5. Now completely re-assemble guts of airbrush.
CLEANING THE AIRBRUSH:
1. Paint passes from the bottle connection forward so the trigger area back will most likely not need cleaning.
2. You can back flush the paint into your bottle by covering the Needle Protector with your finger and then pressing down on the trigger and
pulling slightly back. This forces paint from the fluid passage back into the bottle. Never use open cup for back flushing.
3. In between color changes or before storing the airbrush attach bottle with appropriate cleaner and spray into sink until it runs clear.
4. Remove needle and wipe clean then replace.
5. If paint has dried for a time you can remove the front tip and head for soaking, or soak just the front of the airbrush in cleaner.
6. Use cleaner for the material you are spraying. Keep trigger area dry if soaking.
PERSONAL SETTINGS:
Needle Adjustment Sleeve- Used to increase or decrease spring tension for the trigger pull back. Thread into the shell until the trigger
stroke feels comfortable. Threading in until it stops can cause the trigger to jam.
Line Adjustment Assembly- Used to preset paint flow. When rotated clockwise the trigger will retract opening the fluid passage. This
allows a set paint flow when only pushing down on the trigger.
TROUBLESHOOTING:
Bubbling in cup
1. VLH Head #2 needs to be wrench tightened
Skipping or spitting:
1. Paint too thick -Reduce with thinner
2. Tip not seated -Tighten VLH Head with wrench
3. Tip split or damaged Needle -Replace tip or needle
4. Needle or tip dirty -Clean and replace
5. Air pressure too low -Increase pressure or thin paint further (need 20 or more PSI to spray most paints)
Airbrush not spraying:
1. Clogged Tip -Remove tip and clean
2. Needle not moving -Tighten needle locknut
3. Loose VLH Head -Wrench tighten
4. Low air pressure -Increase pressure (need 20 or more PSI to spray most paints)
5. Bottle vent hole plugged -Use needle or pin to clear air hole
Sprays double line or heavy to one side:
1. Split tip or bent needle - Replace
2. Dirty tip or needle - Remove and clean
3. Tip not centered in head - Remove head and clean airbrush seat and tip seat then reassemble. Use wrench for head
Jammed trigger or poor trigger motion:
1. Adjust Needle Adj. Sleeve - Screw or unscrew the sleeve to lessen or increase tension on trigger motion
2. Paint leaking to trigger area - Remove guts of airbrush and slightly tighten packing or replace if needed
3. Lubricate needle and trigger - Apply lubricant to needle shaft and trigger slot area