Gaahleri Preset Fluid Control Knob – GHAD-39
Gaahleri · GHAD-39 Parts
Preset Fluid Control Knob
GHAD-39 Only · Rear Needle Travel Limiter
✅ GHAD-39 (Advanced Series) only
Does not fit GHAC-98D — the Ace Series uses a different rear mechanism.
What Is This?
The rear knob on the GHAD-39 that sets a hard limit on how far back the trigger can travel — which directly caps how much paint can flow. Turn it in to restrict needle pull-back; turn it out to open up the full range.
Useful for dialling in a consistent output for repetitive tasks — base coating, priming, or any work where you want the same paint volume every stroke without actively modulating the trigger.
Practical Benefits
🎯 Hard cap on maximum output — prevents accidental over-spray on fine work
🔁 Repeatable strokes — same paint volume pass after pass without concentration
💪 Muscle memory training — set the limit while learning trigger control, remove it as skill develops
⚠️ Heads Up
GHAD-39 only. The GHAC-98D uses a different rear mechanism and is not compatible with this part.
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