Graco DutyMax GH300 HD Procontractor Frame and Belt Guard Parts

Graco DutyMax GH300 HD ProContractor Frame & Belt Guard Parts – Comprehensive OEM Parts List

For professionals relying on Graco airless paint sprayer systems—especially those in heavy-duty environments—having the right paint sprayer parts, airless paint sprayer attachments, and dependable frame components is essential. The Graco DutyMax GH300 HD ProContractor series delivers industrial-strength performance, and SprayersAndParts.com offers a full Graco parts list, including Graco pump repair kits, frame assemblies, belt guards, wheels, and fasteners designed to industry specifications.

Why the DutyMax GH300 HD ProContractor Frame & Belt Guard Matters

The cart frame and belt guard are vital structural elements that uphold the sprayer’s rugged reliability on the jobsite. These OEM-grade parts ensure:

• Structural Integrity: The 38 mm OD heavy-wall steel frame (Part #248815) boasts 50 % less flex compared to generic replacements, resisting cavitation caused by hydraulic pressure fluctuations during demanding coating applications 

• Safety Compliance: The belt guard assembly (Parts 24M086 rail and 248973 guard) meet ANSI B15.1 standards, shielding moving parts to protect operators and prevent injuries 

• Heat Dissipation & Durability: Louvered vents in the guard promote airflow, supporting hydraulics and belts under load—boosting belt life by up to 30 % 

• Quick Maintenance: The rail and guard mount using shoulder bolts and wave washers—easy to remove or reinstall in under 10 minutes without grinding or welding 

Detailed Frame & Guard Components List

Here’s a breakdown of the core parts included in the Frame & Belt Guard section of the Graco parts list:

• Cart Frame Assembly (Part #248815) – Welded heavy-wall 38 mm OD steel.

• Belt-Guard Rail Assembly (Part #24M086) – ANSI safety yellow stamped steel.

• Belt-Guard Kit (Part #248973) – Includes guard cover, screws, wave washer.

• Wheel Kit (Part #119509) – 12″ pneumatic wheels with sealed bearings for uneven terrain.

• Fasteners & Labels – Precision-machined screws, nuts, clamps, and ordering labels such as:

  • 248973 belt-guard screws and shoulder bolts

  • 248815 frame weldments

  • Safety labels: Made in USA, warning labels, direction labels, etc. 

All replacement parts are OEM certified to withstand high-pressure coating environments and rigorous daily operation.

How These Parts Integrate with Your Graco Spray Setup

The GH300 HD frame shares compatibility across multiple Graco platforms. If you’re using related gear such as:

• DutyMax GH275 & GH300

• EH300 HD electric hydraulic sprayer

• GMax II 7900 gas sprayer

• LineLazer 3900 / FieldLazer R300 stripers

…you can interchange wheel kits, belt guards, and rails without modification. This versatility simplifies fleet maintenance and reduces spare parts inventory.

Enhance Durability with Airless Paint Sprayer Attachments

To protect your sprayer’s key components and boost longevity, consider pairing these frame upgrades with essential airless paint sprayer attachments:

1. Heavy-Duty 3 ft Whip Hose – Mitigates hydraulic pulsation, protecting belts and frame during rapid spray cycles RAC X Tip Guards – Universal fit for Graco guns (DutyMax, Magnum, TrueCoat), safeguarding spray tips during high-impact jobs 

2. Foam-Filled 12" Wheel Kit – Ideal for rugged sites; fits standard GH300 frames for improved debris resistance 

Performing Repairs & Where to Find Help

Maintaining a high-performing Graco pump system starts with top-quality OEM parts. For the GH300 HD cart frame and belt guard:

• DIY Replacement – With the provided torque specs (150 in‑lb / 17 N·m for guard bolts), any technician can swap parts easily.

• Professional Service – If you need help, consider Graco pump repair near me to locate certified overhaul technicians who can rebuild your hydraulic motor and replace pump seals properly. Use the term “Graco pump repair near me” in local search to find Graco-authorized service centers.

Pairing frame upgrades with an authorized Graco pump repair kit like the 248977 or 24M725 hydraulic kits ensures clean, smooth operation while preserving warranty compliance.

Related Accessories for a Complete Setup

To fully optimize your Graco spray equipment configuration, consider the following:

• Graco pump repair kits – Complete overhaul kits including seals, bearings, pistons to maintain hydraulic motor reliability.

• Airless gun and hose parts – OEM hoses, fittings, gun filters and seals keep fluid flow clean and prevent leaks.

• Spray tips & accessories – RAC X spray tips, ProContractor tips, tip guards, and extensions fine-tune spray patterns and coverage.

• Cart components – Conversion handles, clamps, labels, tubing, offering full restoration capability to your sprayer’s frame and mobility.

Five-Step Maintenance Plan for Frame & Guard Longevity

1. Inspect Weekly – Look over frame welds, guard mounts, and wheel bearings for signs of stress or loose fittings.

2. Tighten Bolts to Spec – Guard bolt torque setting: 150 in‑lb / 17 N·m ensures secure fit without stripping threads 

3. Clean and Lubricate – Blow off dust using low-pressure air, lubricate moving parts to reduce wear.

4. Upgrade Wheels in Tough Conditions – Swap to foam-filled kits when working on demolition or debris-laden sites.

5. Replace Worn OEM Parts – Use only genuine frame components—outsourcing to Graco pump repair near me or ordering Graco parts list items from SprayersAndParts.com ensures you get certified, long-lasting replacements.

Final Takeaway

Your Graco airless paint sprayer—especially the DutyMax GH300 HD ProContractor—is only as strong as its foundation. The frame assembly and belt guard are critical to sprayer longevity, safety, and performance. OEM replacements guarantee:

• Structural integrity under hydraulic stress

• Safety through ANSI-compliant guards

• Interchangeability across Graco fleets

• Easy, fast maintenance with proper torque specifications

Combine these frame upgrades with a complete suite of airless paint sprayer attachments, Graco pump repair kits, and Graco spray equipment parts, and you’re equipped for any industrial coating challenge. For localized service, search Graco pump repair near me to find certified technicians.

For parts, diagrams, torque specs, and local service recommendations, SprayersAndParts.com has your full Graco parts list, shipping the highest-quality gear backed by Graco’s OEM standards. Need help choosing a kit or locating local repair support? I’d be happy to guide you further!