Getting Flows and Pressures Right: A Mini Guide from Worsley Plant

Why It Matters

One of the most common service calls we receive is about attachments not performing as expected. In many
cases, the issue comes down to flows and pressures. Whether it’s a crusher bucket, shear, grapple, or breaker, getting the hydraulics set correctly is the difference between smooth operation and costly downtime.

Common Symptoms of Flow and Pressure Issues

When flows and pressures are not set correctly, operators often notice:
Attachments feel underpowered or slow.
Breakers striking inconsistently.
Pumps working harder than expected.
Attachments or machines overheating.

Scrap Metal Processing

Construction

Demolition

What Causes These ProblemsIncorrect machine setup is the most common reason, with flows not matched to the attachment specification.
Pressures too high → stress, damage, and premature wear.
Pressures too low → poor performance and sluggish operation.
Other causes can include contamination,
blocked filters, faulty couplers, damaged hoses, or simple operator error when adjusting
controls.

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How to Check and Adjust Flows and Pressures

Getting the settings right doesn’t have to be complicated. Here’s a practical process to follow:

Start with safety

Park the machine on level ground, secure it, and release any stored hydraulic pressure before working on the lines.
Always wear appropriate PPE.

Check Connections

Ensure hoses are connected correctly and securely.
Clean couplers and check for blockages or damage.
Straighten or replace any kinked or damaged hoses.

Review your attachment’s specifications

Go to the product page on the Worsley Plant website.
Search for your attachment.
Download the brochure or manual for your specific attachment.
Note the required flow range (l/min) and pressure range (bar).

Compare with your machines settings

Using your machine’s in-cab monitor or flow meter, check the current flow and pressure settings for the hydraulic circuit.
If these do not match the attachment’s requirements, adjust accordingly following your machine manufacturer’s instructions.

Test in operation

Run the attachment under load for a short period.
Listen for unusual noises, check for sluggish or jerky movements, and feel for signs of overheating.
Fine-tune the flow if needed, staying within the recommended specification.

If in doubt, ask

Avoid guessing. Running at the wrong settings risks damaging both the attachment and the carrier machine. Contact Worsley Plant for advice or arrange for one of our engineers to provide onsite support.

How Worsley Plant Can Help

Every attachment we supply comes with recommended flow and pressure settings, and we make sure customers have access to the right information from day one

We can support you by:

Providing manuals and brochures with setup guidance.
Offering advice over the phone or by email.
Delivering on-site setup support for a perfect machine–attachment match.

The benefits? Longer attachment life, lower fuel consumption, higher productivity, and less downtime.

Getting flows and pressures right isn’t just technical talk, it’s essential for safe, efficient, and cost-effective operation. If you’re unsure about your setup, get in touch with us and we’ll make sure everything is running at peak performance.

Getting Flows and Pressures Right: A Mini Guide from Worsley Plant