CAT 095-8076 SEAT SPRING

CAT 095-8076 (0958076) is a track tensioning cylinder recoil spring seat adapted for the 760GT tracked chassis. It supports the recoil spring of the tensioning cylinder, positions the spring axially, and transmits buffer force. It is compatible with models such as the 395/374/352/349 excavators and 988/982 loaders, and works in conjunction with the 095-7947 ​​retainer and 095-7726 tie rod to ensure the stability of the track tensioning system.

Core Parameter Table

Item Details
Part Model CAT 095-8076 (0958076) Recoil Spring Seat (Dedicated for 760GT Track Tensioning Cylinder)

Type Annular stepped structure, with spring positioning shoulder and radial guide key, compatible with the inner diameter of the 760GT tensioning cylinder buffer spring and the outer diameter of the guide cylinder

Material 42CrMo alloy steel, tempered and nitrided, hardness HRC38-42, fatigue-resistant and wear-resistant, suitable for working conditions from -40℃ to 120℃

Key Dimensions Spring positioning inner diameter approx. 180-190mm, outer diameter approx. 220-230mm, shoulder thickness approx. 25-30mm, guide key width approx. 15-20mm, coaxiality error with spring after installation ≤0.1mm

Compatible Models CAT 349, 352, 374, 395 excavators; 982, 988 Loader (760GT Tracked Chassis Configuration)

Functional Positioning: Supports and positions the buffer spring axially, transmits spring force during track tensioning/buffering, prevents radial displacement and circumferential rotation of the spring, protects the tensioning cylinder seals and guide cylinder, and works with the 095-7947 ​​retaining ring to lock the axial position.

Adaptation and Application:

Installation Location: Inside the track tensioning cylinder guide cylinder, located between the buffer spring and the tensioning piston. A shoulder supports the spring end face. A radial guide key is embedded in the guide cylinder keyway to limit the spring’s circumferential rotation. It works with the 095-7947 ​​retaining ring to lock the axial position and prevent spring slippage.

Application Scenarios: Suitable for heavy-duty, high-frequency impact conditions such as mining and infrastructure construction. It withstands the axial pressure and vibration of the spring, adapts to the dynamic load during track tensioning/buffering, and prevents spring displacement from causing damage to the cylinder seals, track tension fluctuations, and track misalignment.

Core Functions: Positions the buffer spring axially and radially, transmits spring force, prevents spring misalignment/rotation, protects the cylinder seals and guide cylinder, extends the service life of the tensioning cylinder and spring, and ensures the stability of the track tensioning system.

Installation and Maintenance Points

Installation: Clean the guide cylinder, spring base, and the mounting surfaces of the buffer spring, removing oil, rust, and impurities. Ensure the guide key and keyway are undamaged.

Insert the spring base into the guide cylinder, aligning the guide key with the keyway and the shoulder facing the spring. Place the buffer spring, ensuring the spring end face fits snugly against the shoulder. Install the 095-7947 ​​retaining ring to lock the axial position of the base. Check for radial misalignment and circumferential rotation of the spring.

Start the machine to test the extension and retraction of the tensioning cylinder. Check that the spring base is not loose, there are no abnormal noises, and the tension force is stable.

Maintenance Cycle: Under standard operating conditions, check for base wear, guide key deformation, and clearance between the spring and retaining ring every 1000 hours. Under mining operating conditions, shorten this to 500 hours. Address any abnormalities immediately.

Replacement criteria: Replacement is required if the wear of the base shoulder is greater than 1mm, the guide key is deformed/broken, there are surface cracks, the clearance between the base and the spring is greater than 0.5mm, or the spring cannot be positioned after installation. Original parts should be given priority to avoid dimensional deviations that could cause spring misalignment or damage to the hydraulic cylinder.