# Brief Introduction to Changjian 1202 Crawler Tractor

Suitable for large-area farmland operations, while also accommodating earthwork engineering operations. 1) Good parts commonality, large traction force, and high operating efficiency, especially suitable for large-area farmland operations and earthwork engineering operations. 2) Equipped with a direct injection engine, featuring high power, low fuel consumption, good starting performance, and long service life. 3) The main clutch adopts a dry, dual-plate, disc spring-compressed normally engaged type, with low operating force and convenient adjustment of the externally mounted small brake; the brake is a bidirectional floating brake, which not only improves braking capacity but also meets the braking requirements for uphill and downhill terrain. 4) Optional rubber tracks can be installed to improve road passing performance and facilitate transfer operations. 5) Direct electric starting, steering control adopts a hydraulic booster, making steering control light and labor-saving. 6) Fully enclosed cab, equipped with an overhead heater, and an air conditioning unit can also be optionally installed. 7) The main driver's seat is a suspension-type elastic seat with movable armrests and adjustable height. 8) Control levers and instruments are designed according to ergonomics, making driving and operation more comfortable. Main Performance Parameters Model: 1202; Type: Agricultural crawler type; Overall dimensions (L×W×H, without dozer blade) (mm): 4443×1850×2940; Minimum operating mass (kg): 6800; Track gauge (mm): 1435; Wheelbase (mm): 1622; Track width (mm): 390; Ground pressure (kPa): 48.6. Engine: Model LR6B5-23; Type 48.6; Rated power and speed (kW/(r/min)): 88.2/2300. Number of gearbox speeds (forward/reverse): 6/2; Speed (km/h) (forward/reverse): 4.51~12.59/4.43~6.53; Power take-off shaft power (kW): 75; PTO speed (r/min): 540/1000. Clutch: Dual-plate single-acting; Suspension category: Rear-mounted two-point or three-point suspension Category II; Tillage depth control method: Height adjustment; Lifting force (kN): 13.4; Dozer blade dimensions (W×H) (mm): 2462×850; Dozer blade penetration depth (mm): 330. Product Details: 1. Complete machine: Good parts commonality, large traction force, and high operating efficiency, especially suitable for large-area farmland operations and earthwork engineering operations; equipped with different agricultural implements, it can perform heavy-load operations such as ridge forming, harrowing, seeding, subsoiling, deep plowing, and combined land preparation. 2. Engine: Adopts LR6B5-23 inline, water-cooled, four-stroke diesel engine, featuring high power, low fuel consumption, good starting performance, long service life, and reliable operation. The whole machine's emissions meet the "National II emission" standard. The main clutch adopts a dry, dual-plate, disc spring-compressed normally engaged type, with low operating force and convenient adjustment of the externally mounted small brake. 3. Gearbox rear axle: The gearbox has 6 forward gears and 2 reverse gears. Forward gear I and reverse gear II are used for earthwork such as dozing, while the remaining gears are used for farmland cultivation, and can adapt to different operational requirements and load change requirements, thereby allowing reasonable selection of working speed and achieving better economic results. The rear axle steering clutch adopts a multi-plate, dry, same disc spring-compressed steering clutch, with long friction plate life; belt-type brake, reliable braking. 4. Dozer blade: The product is equipped with a dozer blade and can perform dozing operations. The dozer blade is raised and lowered by two hydraulic cylinders, with simple operation and reliable performance. 5. Suspension system: The suspension system uses a split-type hydraulic system as power to lift and lower suspended agricultural implements, with stable and reliable power, and can adjust height to control the tillage depth of agricultural implements, force agricultural implements into the soil, etc.; it can also maintain agricultural implements and the tractor in a certain relative position through position adjustment. 6. Cab: The cab adopts a fully sealed type, with the interior surroundings and ceiling decorated with microcellular foam plastic, the floor covering made of rubber composite material, and equipped with air conditioning and various instruments, providing sound insulation and sound absorption, as well as heat insulation and thermal preservation. Cover parts and cab metal panels all adopt high-quality cold-rolled sheet material, using die-based stamping and welding processes, with stable and precise structure and an attractive appearance.