Gearbox for Automatic Self-Cleaning Filter

How: Refer to your self-cleaning filter system manufacturer’s manual for the recommended backwash drive operating speed

Why it matters: Together with PTO speed, this defines the exact gear ratio your gearbox needs

How: Calculate the peak torque your water filtration application generates — including shock loads from obstacles or material variations

Why it matters: Kotak roda gigi harus mampu menangani torsi puncak tanpa mengaktifkan perlindungan beban berlebih selama pengoperasian normal.

How: Determine whether the backwash drive on your self-cleaning filter system requires clockwise or counter-clockwise output when viewed from the drive end

Why it matters: Arah putaran yang salah akan merusak alat atau tidak menghasilkan pekerjaan yang bermanfaat.

How: Estimate your annual operating hours for the self-cleaning filter system to determine appropriate service life rating

Why it matters: Pengoperasian dengan jam kerja tinggi memerlukan spesifikasi bantalan dan roda gigi premium untuk biaya per jam terendah.

How: Record the brand, model number, and any part numbers from the nameplate of the gearbox being replaced

Why it matters: Speeds up the matching process and ensures dimensional compatibility with your filtration equipment

How: Assess exposure to dust, moisture, chemicals, and temperature extremes in your typical water filtration conditions

Why it matters: Menentukan tingkat penyegelan yang sesuai, lapisan permukaan, dan spesifikasi material wadah.

How: Measure the bolt hole positions, centre distances, and overall envelope on your self-cleaning filter system’s gearbox mounting flange

Why it matters: Memastikan pemasangan langsung tanpa perlu modifikasi atau pelat adaptor.

Locate the drain plug on the existing gearbox and position a catch container underneath. Remove the drain plug and allow all oil to drain completely — inspect the oil for metal particles or discolouration that may indicate internal wear. Record the old gearbox model number, mounting bolt size, and shaft dimensions for reference.

Remove the fill plug and slowly add the recommended gear oil until it reaches the level indicator. Use the lubricant grade specified in the gearbox documentation (typically SAE 80W-90 GL-5 or equivalent). Replace the fill plug and hand-tighten, then snug with a wrench. Verify the breather cap is clean and unobstructed.

Park the tractor on firm, level ground. Engage the parking brake and place wheel chocks. Turn off the engine and remove the key. Disconnect the PTO shaft from the self-cleaning filter system. Allow all components to cool completely before touching. Wear appropriate PPE including gloves and safety glasses.

Align the PTO driveline with the gearbox input shaft and slide the yoke onto the splines until the locking mechanism engages. Verify the spline count matches (6-spline for 540 RPM, 21-spline for 1000 RPM). Check that driveline operating angles do not exceed 15° — excessive angles cause premature U-joint failure and vibration.

Clean the mounting flange on the self-cleaning filter system frame with a wire brush and solvent, removing all old sealant, rust, and debris. Inspect the mounting surface for cracks, stripped threads, or warping. Chase any damaged bolt threads with a tap. Apply a thin film of anti-seize compound to the mounting face if specified.

Attach the gearbox output shaft to the self-cleaning filter system’s backwash drive drive coupling. For keyed connections, align the keyway and slide the coupling on, then secure with the retaining bolt and torque to specification. For splined outputs, apply anti-seize to the splines and verify full engagement before locking.

After the first 10 hours of field operation, re-torque all mounting bolts to specification. Check the oil level and top up if necessary. Inspect all seals for any signs of weeping. Verify the driveline guard is properly reinstalled. Record the installation date and hour-meter reading for future maintenance scheduling.

Probable Cause: Worn universal joints in the driveline

Recommended Action: First check all mounting bolt torques — vibration frequently loosens fasteners, which then amplifies the vibration. Next, inspect the PTO driveline U-joints for wear or binding. Verify driveline angles are within specification. Finally, check the output coupling to the backwash drive for wear or damage.

Probable Cause: Loose internal components or retaining hardware

Recommended Action: A clunking sound specifically on PTO engagement (but not during operation) usually indicates driveline lash — check driveline telescoping tube for wear. If the clunk occurs during operation, it may indicate excessive gear backlash from internal wear. Have the gearbox inspected if the sound is progressive.

Probable Cause: Insufficient lubricant or incorrect oil grade

Recommended Action: Drain and inspect oil for metal particles. Refill with correct grade. If noise persists after oil change, bearing or gear inspection is required. Contact support for rebuild guidance.

Probable Cause: Operating beyond rated horsepower or duty cycle

Recommended Action: Check oil level and grade against the specification. Clean all debris from the housing exterior — especially the cooling fins. If the self-cleaning filter system is being operated at or above the gearbox’s rated power, reduce forward speed or PTO load. Consider upgrading to synthetic gear oil for improved thermal performance.

Probable Cause: Overfilled oil level creating excess internal pressure

Recommended Action: First, check and correct the oil level — overfilling is a surprisingly common cause of seal leaks. Clean or replace the breather cap. If oil level is correct and breather is clear, the seal has worn and should be replaced using our seal kit.

We offer tiered pricing starting from single-unit purchases, with meaningful discounts beginning at 5+ units. Dealer and OEM pricing structures are available for agricultural equipment retailers and self-cleaning filter system manufacturers. Contact our sales team for a formal quotation tailored to your volume requirements.

Our Automatic Self-Cleaning Filter gearbox is rated for 3,000 to 5,000+ operating hours with proper maintenance. Many customers in intensive Australian operations report achieving 5,000+ hours before requiring any internal service. Key factors affecting lifespan include oil change frequency, operating load, and environmental conditions.

Untuk sebagian besar iklim Australia, oli gir SAE 80W-90 EP yang memenuhi spesifikasi GL-5 sangat ideal. Di daerah tropis dengan suhu tinggi yang berkelanjutan, kami merekomendasikan 85W-140. Untuk daerah selatan yang mengalami musim dingin yang sangat dingin, oli sintetis 75W-90 memberikan perlindungan start dingin yang lebih baik. Periksa kartu spesifikasi oli yang disertakan dengan girboks Anda untuk rekomendasi yang pasti.

Routine service (oil changes, seal replacement, bearing inspection) can be performed on-site with standard tools. For major rebuilds, we supply complete overhaul kits containing all bearings, seals, and gaskets. Detailed service manuals and video guides are available for download from our support portal.

Yes — every purchase includes access to our engineering support team for installation guidance, troubleshooting, maintenance advice, and parts ordering. Support is available via phone, email, and our online contact form. There is no charge for technical support during or after the warranty period.

We accept bank transfer, credit card, and purchase orders from established accounts. For large orders, we offer 30-day payment terms subject to credit approval. Orders can be placed through our website, by email, or by phone. Pro-forma invoices are available for pre-payment arrangements.

Kotak roda gigi kami adalah komponen mekanis dan tidak mengandung zat apa pun yang dapat memengaruhi sertifikasi organik. Namun, pemilihan pelumas perlu dipertimbangkan — kami dapat merekomendasikan oli roda gigi kelas makanan dan mudah terurai yang kompatibel dengan standar pertanian organik di Australia dan internasional.

Ya — kami mengirimkan ke setiap kode pos di Australia, termasuk daerah terpencil dan regional. Kami menggunakan perusahaan pengiriman barang pertanian berpengalaman yang memahami urgensi kebutuhan peralatan musiman. Pengiriman ekspres tersedia untuk situasi kerusakan darurat, dan kami menyimpan stok untuk pengiriman segera model-model populer.

Setiap kotak roda gigi dikuras oli pengirimannya, dibungkus dengan film VCI (Vapor Corrosion Inhibitor), dan dikemas dalam kotak kayu lapis kokoh yang sesuai untuk pengiriman internasional. Kemasan ini melindungi dari kelembapan, benturan, dan korosi selama transit — bahkan untuk pengiriman ke properti terpencil di Australia melalui angkutan darat.

The gearbox is specifically designed for the dynamic and impact loading characteristic of water filtration applications. Case-hardened alloy steel gears absorb repetitive shocks, while the optional overload protection (shear bolt or slip clutch) safeguards against catastrophic overload events. The bearing selection and housing rigidity are both matched to self-cleaning filter system load profiles.