User manual for Graco Diesel Exhaust Fluid (DEF) System covering installation, operation, safety and technical data.
This manual provides safety warnings, installation instructions, and operating procedures for Graco Diesel Exhaust Fluid (DEF) Systems (models 24F531, 24F878, 24F947, 24M499). It includes detailed parts lists, pressure‑relief steps, and guidance on maintaining fluid purity.
Technical specifications such as maximum fluid pressure, air supply range, flow rates, and sound levels are listed, along with warranty information and contact details for Graco support.
| Maximum fluid working pressure | 50 psi (0.3 MPa, 3.4 bar) |
|---|---|
| Operating temperature range | 40 °F – 88 °F (4.4 °C – 31 °C) |
| Maximum pump speed | 163 cpm |
| Maximum free‑flow delivery | 6.5 gpm (25 lpm) |
The system is rated for a maximum fluid working pressure of 50 psi (0.3 MPa, 3.4 bar).
After assembly, flush the entire dispensing system by pumping 5–10 gallons of DEF through it to purge air and contaminants.
Operators must wear protective eyewear, hearing protection, respirators, protective clothing, and gloves as recommended by the fluid manufacturer.
The air supply pressure should be between 30 psi and 50 psi (0.2–0.3 MPa, 2.1–3.4 bar).