The spheroidal graphite iron housing acts as a heat sink with cooling fins for convective cooling. Internal splash lubrication with full-synthetic 75W-140 ensures all surfaces maintain a protective oil film. Ptfe Rotary Seals at each shaft opening block contaminants while retaining lubricant.<\/div>\n<\/details>\n
🔁 Direct Interchange \u2014 Front Loader Gearbox Compatibility<\/h2>\n
Product names below serve as a compatibility guide for replacement purposes. No endorsement or sponsorship by the listed brands is implied.<\/em><\/p>\nKita Front Loader agricultural gearbox<\/strong> is a verified drop-in replacement for these brands and models:<\/p>\n\n- AGCO:<\/strong> Mk-I, C-665, Type 57B \u2014 ✅ dimensionally verified<\/li>\n
- Same:<\/strong> 248T, Model 7349, E-548 \u2014 ✅ dimensionally verified<\/li>\n
- Valtra:<\/strong> Series 272, Mk-III, E-337 \u2014 ✅ dimensionally verified<\/li>\n
- Fantini:<\/strong> Model 6223, Mk-IV, B-380 \u2014 ✅ dimensionally verified<\/li>\n
- P\u00f6ttinger:<\/strong> G8.1, Type 50G, Series 390 \u2014 ✅ dimensionally verified<\/li>\n
- Branson:<\/strong> 598T, Series 476, Type 82C \u2014 ✅ dimensionally verified<\/li>\n<\/ul>\n
Rebuild Kits & Parts<\/h3>\n\n
⚙ Bearings<\/div>\n
🔒 Seals<\/div>\n
⚙ Gears<\/div>\n
🔧 Shafts<\/div>\n<\/div>\n
🎯 Front Loader Gearbox Sizing Guide \u2014 Get the Right Fit First Time<\/h2>\n
Getting the right gearbox for your loader attachment requires confirming these seven parameters before you order. Our engineering team can help you through each step if needed.<\/p>\n
1. Working Hours per Season<\/strong>
\nEstimate your annual operating hours for the front loader to determine appropriate service life rating.
\nImportance: High-hour operations justify premium bearing and gear specifications for lowest cost per hour.<\/em><\/p>\n2. Required hydraulic pump drive Speed<\/strong>
\nRefer to your front loader manufacturer’s manual for the recommended hydraulic pump drive operating speed.
\nImportance: Together with PTO speed, this defines the exact gear ratio your gearbox needs.<\/em><\/p>\n3. Power Requirement<\/strong>
\nMatch the gearbox HP rating to your tractor’s PTO horsepower output and the front loader’s demand.
\nImportance: Under-rating leads to overheating and premature failure; over-rating adds unnecessary cost and weight.<\/em><\/p>\n4. Rotation Direction<\/strong>
\nDetermine whether the hydraulic pump drive on your front loader requires clockwise or counter-clockwise output when viewed from the drive end.
\nImportance: Incorrect rotation direction will damage the implement or produce no useful work.<\/em><\/p>\n5. Operating Environment<\/strong>
\nAssess exposure to dust, moisture, chemicals, and temperature extremes in your typical front-end loading conditions.
\nImportance: Determines the appropriate seal grade, surface coating, and housing material specification.<\/em><\/p>\n6. Existing Gearbox Identification<\/strong>
\nRecord the brand, model number, and any part numbers from the nameplate of the gearbox being replaced.
\nImportance: Speeds up the matching process and ensures dimensional compatibility with your loader attachment.<\/em><\/p>\n7. Torque Demand<\/strong>
\nCalculate the peak torque your front-end loading application generates \u2014 including shock loads from obstacles or material variations.
\nImportance: The gearbox must handle peak torque without activating overload protection during normal operation.<\/em><\/p>\n\ud83d\udca1 Tips Profesional:<\/strong> Ordering tip: if replacing an existing gearbox, measure the input\/output shaft diameters and mounting bolt pattern as a minimum. With these three dimensions, our team can match the correct unit from our catalogue or design a custom solution.<\/p>\n![\"Koleksi](\"http:\/\/mowergearbox.top\/wp-content\/uploads\/2026\/03\/agricultural-gearbox-1.webp\")
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🔧 Technician’s Installation Manual \u2014 Front Loader Gearbox<\/h2>\n
Follow these instructions for a successful installation of your new Front Loader gearbox. Correct installation is critical for achieving maximum service life and warranty coverage.<\/p>\n\nStep 1: Prepare the Mounting Surface<\/summary>\n\n
Clean the mounting flange on the front loader 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.<\/p>\n<\/div>\n<\/details>\n\nStep 2: Drain & Document Old Gearbox<\/summary>\n\n
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 \u2014 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.<\/p>\n<\/div>\n<\/details>\n\nStep 3: Position & Secure New Gearbox<\/summary>\n\n
Carefully lift the new Front Loader gearbox into position on the mounting flange, aligning all bolt holes. Insert mounting bolts hand-tight first, confirming proper alignment. Once all bolts are started, torque them in a star (cross) pattern to the value specified in the installation manual. Verify the gearbox sits flush against the frame with no gaps.<\/p>\n<\/div>\n<\/details>\n\nStep 4: Test Run & Break-In<\/summary>\n\n
Hidupkan traktor dan aktifkan PTO pada RPM rendah (sekitar 300 RPM). Dengarkan dengan saksama apakah ada suara gesekan, deru, ketukan, atau bunyi klik. Jalankan pada kecepatan rendah selama 15-20 menit, pantau suhu rumah gearbox dengan tangan (dengan hati-hati). Periksa kebocoran oli pada semua seal dan antarmuka pemasangan. Secara bertahap tingkatkan kecepatan hingga kecepatan operasi penuh.<\/p>\n<\/div>\n<\/details>\n\nLangkah 5: Lepaskan Gearbox Lama<\/summary>\n\n
Lepaskan poros PTO dari poros input gearbox. Topang berat gearbox dengan dongkrak lantai atau kerekan atas (berat tipikal: 15-70 kg tergantung model). Lepaskan semua baut pemasangan dengan pola menyilang untuk mengurangi tekanan penjepitan secara merata. Turunkan gearbox lama dengan hati-hati dan sisihkan.<\/p>\n<\/div>\n<\/details>\n\nStep 6: Fill With Lubricant<\/summary>\n\n
Lepaskan sumbat pengisian dan tambahkan oli transmisi secara perlahan hingga mencapai indikator level. Gunakan jenis pelumas yang tertera dalam dokumentasi transmisi (biasanya SAE 80W-90 GL-5 atau yang setara). Pasang kembali sumbat pengisian dan kencangkan dengan tangan, lalu kencangkan lagi dengan kunci inggris. Pastikan tutup ventilasi bersih dan tidak tersumbat.<\/p>\n<\/div>\n<\/details>\n\nStep 7: Connect PTO Driveline<\/summary>\n\n
Sejajarkan poros PTO dengan poros input gearbox dan geser yoke ke spline hingga mekanisme penguncian terpasang. Verifikasi jumlah spline sesuai (6-spline untuk 540 RPM, 21-spline untuk 1000 RPM). Periksa bahwa sudut operasi poros penggerak tidak melebihi 15\u00b0 \u2014 sudut yang berlebihan menyebabkan kegagalan sambungan U prematur dan getaran.<\/p>\n<\/div>\n<\/details>\n
\u26a0 Penting:<\/strong> Always consult the specific installation manual shipped with your Front Loader gearbox for model-specific torque values and procedures.<\/p>\n⚠ Fault Diagnosis Guide \u2014 Front Loader Gearbox<\/h2>\n
Use this diagnostic reference to identify and resolve common Front Loader gearbox issues in the field. Most problems can be diagnosed and addressed without removing the gearbox from the front loader.<\/p>\n\n\u26a0 Kotak roda gigi menghasilkan suara berderak logam saat PTO diaktifkan<\/summary>\n\n
Kemungkinan Penyebab:<\/strong> Overload protection mechanism is loose<\/p>\nTindakan yang Disarankan:<\/strong> Bunyi berderak khusus saat PTO diaktifkan (tetapi tidak selama pengoperasian) biasanya menunjukkan adanya kelonggaran pada poros penggerak \u2014 periksa tabung teleskopik poros penggerak untuk melihat adanya keausan. Jika bunyi berderak terjadi selama pengoperasian, hal itu mungkin menunjukkan adanya kelonggaran gigi yang berlebihan akibat keausan internal. Periksakan gearbox jika bunyi tersebut semakin memburuk seiring berjalannya waktu.<\/p>\n<\/div>\n<\/details>\n\n\u26a0 Getaran Berlebihan Selama Pengoperasian<\/summary>\n\n
Kemungkinan Penyebab:<\/strong> Unbalanced hydraulic pump drive or damaged output coupling<\/p>\nTindakan yang Disarankan:<\/strong> First check all mounting bolt torques \u2014 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 hydraulic pump drive for wear or damage.<\/p>\n<\/div>\n<\/details>\n\n\u26a0 Kesulitan Menghubungkan Poros PTO ke Kotak Gigi<\/summary>\n\n
Kemungkinan Penyebab:<\/strong> Incorrect spline count (540 vs 1000 RPM mismatch)<\/p>\nTindakan yang Disarankan:<\/strong> Bersihkan alur poros input dengan sikat kawat dan oleskan lapisan tipis pelumas anti-macet. Putar poros PTO perlahan sambil mendorong untuk menyelaraskan alur. Jika alur tidak terpasang, periksa jumlah alur sesuai dengan standar PTO Anda \u2014 6 alur untuk 540 RPM, 21 alur untuk 1000 RPM.<\/p>\n<\/div>\n<\/details>\n\n\u26a0 Poros Keluaran Berhenti Berputar Saat Poros Masukan Berputar<\/summary>\n\n
Kemungkinan Penyebab:<\/strong> Internal shaft fracture<\/p>\nTindakan yang Disarankan:<\/strong> Periksa perangkat pelindung beban berlebih terlebih dahulu \u2014 ini adalah penyebab yang paling mungkin jika gearbox baru-baru ini mengalami beban berlebih secara tiba-tiba. Ganti baut pengaman atau setel ulang kopling selip sesuai manual. Jika pelindung beban berlebih masih utuh, gearbox mengalami kerusakan internal dan memerlukan servis profesional.<\/p>\n<\/div>\n<\/details>\n\n\u26a0 Kebocoran Oli dari Segel Poros<\/summary>\n
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