Question 1

What is a performance review?

Accepted Answer

JHD tests how the hydraulic system works on the machine. We check pressure and flow, look for causes of weak or slow response and explain what we find. If tuning is suitable, we can do that work onsite.

Question 2

What does hydraulic flow testing show?

Accepted Answer

Flow testing shows how much oil a pump or circuit can deliver. Low flow may point to wear, a leak or another fault. We use the result with pressure checks and the machine's symptoms to guide the next step.

Question 3

Can the work be done at a mine site?

Accepted Answer

Yes. Our mechanics can bring the needed test tools to the site and work around its requirements. We confirm access, timing and the machine details before the visit.

Question 4

How is this different from an appraisal?

Accepted Answer

This service is for hydraulic performance testing, diagnosis and tuning. If you need a wider condition check or a pre-purchase appraisal, see JHD's Onsite Assessments & Appraisals service.

Question 5

Will I get a written report?

Accepted Answer

Yes. Every hydraulic assessment includes a written report. It sets out what we tested, what we found and the next steps we recommend.

Question 6

Which machines can you review?

Accepted Answer

JHD works on mining excavators, loaders, haul trucks, drill rigs, dozers and graders. Its confirmed brand experience includes Caterpillar, Komatsu, Hitachi, Liebherr and Volvo. Tell us the machine model when you enquire so we can confirm the job.

Question 7

Where do you provide this service?

Accepted Answer

JHD currently works across Western Australia and Central Queensland. Confirmed areas include the Pilbara, Goldfields, Bowen Basin and Mackay. Contact us with your site location and machine details to check timing.

Performance Reviews & Hydraulic Tuning

JHD Maintenance Support