Blog

hydraulic equipment

Dowerin Field Days are Coming...

This year the Dowerin Field Days are on August 30th and 31st. This event is the largest agricultural expo in WA. Over the two days, everything agriculture and farming community-based products and services will be on display. If you’re new to the event or a regular you will find us at our usual site No. 384, on the hockey oval. Each year we display a large selection of the products and services we offer here at Gerrard Hydraulics. Our staff will be available across both days to answer questions and help with any queries...

hydraulic equipment

Should You Get Extra Remotes...

We often get enquiries in regards to adding an extra set of remotes on the back of tractors for easy cross over from one hydraulic circuit to another. For example, you have a tractor with only two sets of remotes and you are towing your air seeder that has 3 functions (2 wing lifts and a main lift). With the 6 port diverter fitted to one remote set you now have a 3 remote outlet. Now you simply connect the solenoid to an electrical switch in the cab and by turning the selector on/off you can operate two functions from the one...

servicing your airseeder

What Should You Do at the End...

With the seeding season reaching its end, in the coming month your machinery will be working hard day and night. Has your equipment not worked as efficiently as expected, but you persisted with it anyway? When your crops are fully sown you may be thinking its time to put the equipment away until next year, but don’t be too hasty. Now is a good time to get the airseeder fan drive motor serviced due to leaks or inefficiency, or perhaps your bar cylinders need to be resealed due to creeping or external leaking. Whatever the...

cylinder intensification in hydraulics

Cylinder Intensification in...

When defining pressure intensification in hydraulic cylinders, it all comes down to the total scope of the surface differential between the surface area of the full bore end, and the usable surface area in the rod end. The usable surface area in the rod end is commonly known as the Annulus surface area. The annulus area is calculated by subtracting the rod diameter surface area from the bore diameter surface area. The full bore end surface area is always larger than the annulus area. Intensification occurs in hydraulic...

The Importance of an...

In the previous blog we explained the importance of efficient phasing cylinder operation in use on Seeding bars. Another hydraulic component that is integral to air seeding is the fan drive motor. This particular motor drives the fan, which in turn generates the air pressure in the air lines used to distribute the seeds. A common issue that can arise from an inefficient fan drive motor is a decrease in air pressure. What Happens When Your Fan Drive Motor Doesn’t Work When the air pressure drops the seeds may not have the...

seeding your crops in WA

The Importance of Phasing...

            It’s that time of year again when farmers are busy planting the seeds for their crops, using purpose-built machinery.   Since a successful crop production is dependant on the seeding process, ensuring your site is properly prepared, and you’re using the best possible hydraulic machinery for planting your seeds, is a must!   What is Seeding?   Seeding, as the name suggests, is when farmers plant the seeds that will ultimately grow their crops....

HYDRAULIC COOLING SYSTEMS

With a long hot summer in progress, and several more weeks of hot weather anticipated, it’s a good time to share some thoughts on cooling hydraulic systems. Where does the heat come from? Most users are familiar with the phenomenon of power loss in the hydraulic systems they operate – in simple terms, the difference between the energy put into the system and the energy that comes out as usable power. But of course the power is not really “lost” – the “missing” energy just gets turned into another, unusable form of...

Hydraulic Accumulators in...

My physics teacher used to call it the “Law of Natural Cussidness” – the inconvenient tendency of every advantageous property we exploit in a material to be accompanied by a corresponding disadvantage. Take hydraulic fluid. Its principal virtue is its incompressibility, which allows it to multiply small forces many times and convey them over distance to where the work needs to be done. But the very incompressibility of hydraulic fluid means that while it’s great for transmitting kinetic energy, it’s incapable of storing...

Making Sense of Load Sense

  As with most energy-consuming technologies, the quest for greater economy is driving development in hydraulics. One of the most important innovations is the arrival of load-sensing systems in machinery that experiences frequent changes of load in normal use. The simplest hydraulic systems operate at the maximum pressure and flow for which they were designed. Excess power, being a function of pressure and flow, is rejected through pressure relief valves, a process that requires work from the power unit and is therefore...

Filter Tips – Keeping your...

Here at Gerrard Hydraulics, when we show people our workshop, the usual first reaction is “I could eat my dinner off that floor!” As it happens, we don’t eat our dinners off our floors; or indeed any other meals. And there’s a lot else in our shop that we’d like to show you. But there’s no denying that we’ve got a thing about cleanliness. But an obsession with hygiene that would have ordinary people seeking clinical help is a perfectly sane response to the challenges of hydraulics. Cleanliness is next to...