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Our capabilities

Explore our mechanical services, from keeping equipment running to extending its working life. Every job is delivered to OEM standards.

A diesel engine on the bench with its front gear train exposed

01

Component rebuilds

Major component replacements and rebuilds, including engines, transmissions, differentials and hydraulic systems.

Rebuild and life-extension work is delivered to OEM standards. Discuss the machine, component condition and required work with us so the repair scope is clear before the job starts.

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A Port City service ute on a quarry site beside a wheel loader

02

Field service and breakdowns

Breakdown response and on-site repairs, with fully equipped field service vehicles.

Our 14 equipped service vehicles support repairs where the equipment works. Tell us the fault, machine and location so we can confirm availability and the next step.

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A wheel loader mid-rebuild, with a major component lifted clear on the workshop crane

03

Shutdown and project labour

Planned shutdown maintenance and labour support.

Add mechanical capacity for planned work, with experienced technicians following your site procedures. We review the scope, timing and personnel requirements with your team.

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Two Port City utes in a workshop bay, with a machine frame on stands behind

04

Labour hire

Skilled labour supplied under our own Queensland labour hire licence.

Scale your team with skilled fitters under our own Queensland labour hire licence. We can work in your company colours and supply service vehicles where the contract calls for them.

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An engine block opened up with the cylinder bores exposed

05

Diagnostics and fault finding

Breakdown diagnostics, fault finding and repairs.

Breakdown diagnostics, fault finding and repairs, carried out by technicians who diagnose accurately and repair to OEM standards.

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A large machine frame supported on stands inside the workshop

06

Preventative maintenance and servicing

Scheduled servicing, inspections and ongoing fleet maintenance.

Bring servicing and inspections into the maintenance plan for a single machine or a whole fleet. Scheduled work gives your team a clear opportunity to identify and address equipment issues.

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Our approach

What sets us apart

When the job is too complex, too challenging or outside the standard procedure, that's where Port City Heavy Diesel Maintenance stands apart.

We don't just follow procedures. When the situation demands it, we develop our own. From complex mechanical failures and specialised rebuilds to repairs that require innovative thinking, our team has the technical knowledge, hands-on experience and confidence to find solutions where others may struggle.

Our approach is built on a standard established from day one: every repair, big or small, should meet OEM standards, with the ambition to exceed them.

We pride ourselves on more than just supplying skilled labour. We provide technicians who can think independently, diagnose accurately, develop practical repair strategies and execute work to an exceptional standard.

  • Problem-solving beyond the manual

    Developing job-specific repair procedures and practical solutions for complex, non-routine work.

  • OEM-level workmanship

    Applying manufacturer-quality standards across everything from minor repairs to major component rebuilds.

  • Independently capable technicians

    Hand-selected tradespeople trusted to make informed decisions and deliver results without constant supervision.

  • Versatility across industries

    Supporting everything from small civil equipment to some of the largest mining machines in operation.

  • Reliability when it matters most

    Delivering skilled technical support during critical breakdowns, major rebuilds and demanding operational conditions.

  • Relationships built on results

    Earning the trust of major OEMs and contractors through consistent workmanship, accountability and proven performance.

We aren't simply there to fill a labour requirement. We're there because our customers trust us to get the job done, especially when the solution isn't straightforward.

Capability statements

Our PDF statements bring the services, project experience and credentials together for supplier reviews and tenders.

Browse capability statements

Get in touch

Discuss your equipment

Tell us the equipment, location and timeframe. We will confirm the next step.