Hydraulic Pump & Motor Repair in Sydney
Pump losing pressure, motor running hot, noisy or not turning under load? We repair and rebuild hydraulic pumps and motors for excavators, earthmoving equipment, trucks and industrial machinery from our Seven Hills workshop.
Complete hydraulic pump & motor repair
We strip, inspect and rebuild hydraulic pumps and motors rather than simply replacing seals and hoping for the best. The shaft, gears, vanes, pistons, bearings, seals and port plate are checked so the cause of the failure can be identified before the repair is quoted.
Common hydraulic pump & motor problems we repair
A failing pump or motor does not always need complete replacement. We assess the unit and recommend the repair that makes sense for its condition.
Loss of pressure or flow
Pump will not build pressure or motor lacks power under load.
Noisy or cavitating pump
Whining, grinding or knocking noise from the pump during operation.
Overheating
Motor or pump running hot, or oil discolouring and breaking down quickly.
Internal leakage / bypass
Motor stalls, drifts or loses power under load due to internal wear.
Worn shaft seal
Oil leaking from the pump or motor shaft.
Damaged internals
Worn or broken gears, vanes, pistons, bearings or port plates.
Hydraulic pump & motor types we service
We repair hydraulic pumps and motors used across excavators, earthmoving machinery, trucks and industrial equipment. Bring us the pump or motor itself — you do not need to bring the whole machine.
Pump & motor types
Brands we service
In-house machining when parts are damaged
A hydraulic pump or motor can often be repaired even when the original shaft, housing, gears or port plate is badly damaged. Our machining capability lets us reproduce components to suit the existing unit rather than automatically replacing the complete assembly.
How the repair works
Bring the pump or motor to our Seven Hills workshop. We inspect it first and provide a clear repair quote before proceeding.
Drop Off
Bring the removed hydraulic pump or motor to our workshop.
Strip & Inspect
We dismantle it and assess the shaft, gears, vanes, pistons, bearings, seals and housing.
Repair & Rebuild
Reseal, replace worn components or machine replacement parts as required.
Quality Check
Hydraulic motors are bench tested under pressure and flow; pumps are rebuilt to precise tolerances and thoroughly inspected before collection.
Hydraulic pump & motor repairs across Sydney
Our workshop is in Seven Hills, making us convenient for customers across Western Sydney and the wider Sydney area, including Blacktown, Parramatta, Smithfield, Wetherill Park, Eastern Creek, Castle Hill, Penrith and surrounding industrial areas.
Hydraulic pump & motor repair FAQs
Common questions about hydraulic pump and motor repairs.
Can you repair a hydraulic pump that has lost pressure or flow?
Yes. We strip and inspect the pump, checking the gears, vanes or pistons, shaft, bearings and port plate, then quote the repair before work proceeds. Depending on condition, the job may involve resealing, component replacement or machining.
Can you repair a hydraulic motor that is noisy, overheating or not turning under load?
Yes. We assess the motor for internal wear, bypass, contamination damage and worn seals, then recommend a reseal, rebuild or component replacement as required.
Do you repair gear, vane and piston pumps?
Yes. We repair gear pumps, vane pumps, axial and radial piston pumps, and orbital and piston hydraulic motors across a wide range of sizes and applications.
Can you rebuild a pump or motor when replacement parts are unavailable?
Often, yes. Our in-house machining capability allows us to manufacture items such as shafts, housings and port plates when suitable off-the-shelf replacement parts are not available.
Do you bench test hydraulic motors after repair?
Yes. Rebuilt hydraulic motors are bench tested under pressure and flow in our Seven Hills workshop before being returned to service.
Do you test hydraulic pumps after repair?
We don't currently have pump-specific test bench facilities, so pumps are rebuilt to precise tolerances using calibrated measuring equipment and undergo a thorough quality inspection rather than a running bench test.
Can I bring the pump or motor in for a quote first?
Yes. Bring the hydraulic pump or motor to our Seven Hills workshop for inspection and a free, no-obligation quote before repair work begins.
Need a hydraulic pump or motor repaired?
Bring the pump or motor to Sydney Hydraulic Centre in Seven Hills for a free inspection and quote. We can assess pumps and motors that have lost pressure, are noisy, overheating or hard to replace.