How to unlock Graco MAGNUM LTS 15 257060 Paint Sprayer trigger?
- Ccathy42Sep 13, 2025
To unlock the trigger on your Graco Paint Sprayer, rotate the trigger safety lever to unlock the trigger lock.

How to unlock Graco MAGNUM LTS 15 257060 Paint Sprayer trigger?
To unlock the trigger on your Graco Paint Sprayer, rotate the trigger safety lever to unlock the trigger lock.
| Brand | Graco |
|---|---|
| Model | MAGNUM LTS 15 257060 |
| Category | Paint Sprayer |
| Language | English |
Read all warnings and instructions in this manual. Save these instructions.
Use water-based or mineral spirit-type materials only. Do not use materials with flash points below 70°F (21°C).
Importance of proper grounding for electrical safety and requirements for outlets and extension cords.
Risks of electric shock due to improper grounding, setup, or usage.
Chemical reactions and equipment rupture risk from incompatible materials with aluminum parts.
Risks of pinching or amputation from moving parts during operation or servicing.
Requirements for protective gear like eyewear, hearing protection, and respirators.
Details on sprayer grounding, circuit requirements, and extension cord specifications.
Information on the motor's thermal overload switch and how to reset it.
How to use the trigger lock to prevent accidental spraying when not in use.
Steps to safely relieve pressure before cleaning, servicing, or transporting the equipment.
Explanation of different settings on the pressure control knob for various spray functions.
Procedure for priming the sprayer and flushing out storage fluid before first use.
Guidance on flushing the system when switching between water-based and oil-based materials.
Instructions for correctly assembling the spray tip and guard onto the spray gun.
General advice on achieving a good spray pattern and avoiding tip wear.
How to adjust the sprayer's pressure for optimal performance based on application needs.
Step-by-step guide to safely clear obstructions from the spray tip.
How to choose the correct spray tip hole size and fan width for different coatings.
Explanation of how tip hole size affects paint flow rate and sprayer performance.
Guidance on selecting the appropriate fan width for various spray surfaces and coverage needs.
How to interpret the numbers on a spray tip to determine its hole size and fan width.
A chart correlating tip part numbers with fan width and hole size specifications.
Proper technique for aiming the gun to achieve even coverage and overlap.
Correct method for pulling and releasing the trigger during spraying for smooth application.
Steps for flushing the sprayer system using pails and cleaning fluid.
Instructions for performing a faster flushing method using water and the power flush attachment.
How to remove and clean the InstaClean filter on ProLTS sprayer models.
Steps for cleaning the spray gun components, including the fluid filter and tip.
Procedures for storing the sprayer for brief periods, typically overnight.
Detailed instructions for preparing and storing the sprayer for extended periods.
Final steps for preparing the sprayer for storage, including coiling the hose and securing parts.
General advice on keeping the sprayer clean and in good working order.
How to identify and address worn pump packings that may cause leaks.
Guidelines for checking paint hoses for damage and ensuring proper length.
Specific warranty notes and legal acknowledgments for Canadian customers.












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