call us +61 8 9455 2344

Service & Maintenance

Gerrard Hydraulics workshop facilities have been designed for the service, repair and testing of most hydraulic components. We can accommodate rubber tracked or tyred machines that utilize fluid power in their operation within our workshop.

Qualified and experienced service personnel are available who can travel to site for fault finding and repair. Our service vehicles carry flow, pressure, temperature and speed monitoring equipment with general tools for field service and installation work. Our on site capabilities include flow and pressure testing to 400 lpm (106 USgpm) @ 420 bar (6000 psi).

Of the many components that can be serviced, tested and repaired, below is a listing of the more common items.

• Hydraulic Transmissions
• Fixed gear pumps and motors
• Fixed piston pumps and motors
• Variable piston pumps and motors
• Gerotor and geroller motors
• Hydraulic cylinders
• Directional control valves
• Pressure control valves
• Flow control valves
• Accumulators
• Planetary reduction gear boxes

Typical workshop activities

• Servicing, repair and testing of hydraulic systems
• Servicing, repair and testing of hydraulic components
• Manufacture of custom designed power packs
• Re-manufacture of hydraulic cylinders
• Tube and pipe work
• General machining
• General fabrication

 

Our in house facilities include:

Hydrostatic driven test bench for the testing of hydraulic pumps and motors.

Installed power	200 kW (272 HP)
Maximum test pressure	350 bar (5000 psi)
Maximum test flow	500 lpm (132 USgpm)
Drive speed range	1500 rpm nominal (2900 rpm max)
Drive head output (nominal)	130 kW @ 1500 rpm (175 HP @ 1500 rpm)

General Purpose Testing

Multi function test bench
Installed power	22 kW and 4 kW (30 HP and 5.5 HP)
Maximum test pressure	240 bar (3500 psi)
Maximum output flow	100 lpm (26 USgpm)
11 kW test bench
Maximum test pressure	300 bar (4350 psi)
Maximum output flow	10 lpm (2.6 USgpm)
2.2 kW test pack
Maximum test pressure	700 bar (10000 psi)
Maximum output flow	3.78 lpm (1 USgpm)

Typical tests carried out

• Open loop fixed displacement pumps and motors
• Open loop variable displacement pumps and motors
• Closed loop variable displacement pumps and motors with most types of control options catered for.
• Setting of relief valves
• Function testing of manual, pilot operated and solenoid operated control valves
• Function testing valve packages
• Function testing of hydraulic cylinders
• General testing for leaks

Other general equipment includes cylinder strip down and assembly bench, lathes, milling, lapping machine, bandsaw, friction cutter, MIG and electric ARC welding, non-caustic hot water and mineral based solvent parts washers and spray painting facilities.