CAT 077-7869 SEAT

CAT 077-7869 is a Caterpillar genuine mechanical suspension operator seat (pure original factory information, no additional description), adapted for the cabs of small to medium-sized construction machinery, providing support and shock absorption for long-term operation, balancing durability and basic adjustment functions (Cat®…).

Core Parameters and Information

Item Details
Part Number: CAT 077-7869 (0777869) Operator Seat

Structure Type: Mechanical spring suspension base, high back, with three-point retractable seat belt, flip-up armrests, lumbar support adjustment (Cat®)…

Material: Seat cushion/backrest is made of high-density abrasion-resistant fabric; base is made of carbon steel with powder-coated anti-corrosion finish; seat cushion is filled with high-density cold-foamed polyurethane (Cat®)…

Key Dimensions: Overall width approx. 650 mm, overall height approx. 1050 mm, fore-aft adjustment range approx. 180 mm, seat cushion height approx. 420 mm, backrest angle adjustment range 90°-125° (Cat®)…

Performance Parameters: Suspension travel ±50 mm, suitable weight 50-120 kg, vertical damping frequency 3-5 Hz, weathering temperature -30℃ to +60℃, seat belt tensile strength ≥22 kN (Cat®)…

Compatibility Standard: Complies with ISO 3457 Seat Safety Specifications, ROPS/FOPS Cab Compatible, Flame Retardant Rating Complies with SAE J369 Cat®…
Electrical Configuration: Heating/Ventilation Not Included (Basic Model), Compatible with 24V Power Supply Extended Heating Module Cat®…
Compatible Models and Application Scenarios

Compatible Equipment: CAT 307/308 Series Mini Excavators, 226B/236B Series Skid Steer Loaders, 420/430 Series Mini Loaders, etc. Cat®…

Application Scenarios: Municipal engineering, small-scale infrastructure, agricultural and forestry operations, and other long-duration driving scenarios, used to absorb road bumps and reduce operator fatigue Cat®…

Installation: Compatible with standard cab seat rails, secured with 4 M10 bolts, mounting hole spacing 400×200 mm (common specification) Cat®…

Installation and Maintenance Points: Clean the seat rails and mounting surface, check the base, seat belt, and armrests for deformation/cracks, and confirm that the mounting holes match. Align the seat with the guide rail positioning holes and tighten the bolts to 45-50 N·m using a torque wrench, ensuring no looseness and smooth sliding (Cat®…).

Post-installation adjustments: The fore-and-aft sliding, backrest angle, lumbar support, and armrest tilt should all operate flexibly. The seatbelt should lock/release normally, and the suspension should not jam (Cat®…).

Maintenance: Check the bolt torque, suspension spring elasticity, and fabric wear every 500 hours. Replace the seatbelt if the fabric is damaged, the spring is faulty, or the seatbelt is worn. Clean with a neutral detergent to avoid chemical corrosion of Cat®….