CAT 079-2698 ADJ SCREW

CAT 079-2698 is a genuine Caterpillar adjusting screw, compatible with 306E2/307E2 excavators and 226B3/236B3 skid steer loaders. It is used for fine adjustment of the stroke/clearance of hydraulic valves, linkages, or sensors, ensuring component accuracy and stable equipment operation.

Cat® 079-2698 Core Parameters and Information

Item Details
Part Model: CAT 079-2698 (0792698) Adjusting Screw

Type: Precision adjusting fastener for construction machinery, with slotted/hex socket adjusting end and lock nut

Material: 40Cr alloy steel, galvanized and passivated surface, corrosion-resistant and wear-resistant

Key Dimensions: Diameter M8, Length 30mm, Thread Precision 6g, Adjusting End Hex 5mm, Matching M8 Lock Nut

Thread Specification: M8×1.25 (fine thread), Effective Thread Length 20mm

Performance Parameters: Hardness HRC 38-42, Tensile Strength ≥800MPa, Operating Temperature -40℃ to +120℃

Compatible Models: 306E2/307E2 Excavators, 226B3/236B3 Skid Steer Loaders

Matching Relationship: Matching M8 Locking Nut and Flat Washer Usage

Compatibility and Application

Compatible Equipment: 306E2/307E2 mini excavators, 226B3/236B3 skid steer loaders, used for stroke and clearance adjustment of hydraulic pilot valves, linkage mechanisms, and sensor mounting positions (Cat®…).

Application Scenarios: Installed in hydraulic valve stroke limits, linkage clearance compensation, sensor positioning, etc. Adjust component position/clearance by rotating the adjusting end. Used with the locking nut to prevent loosening. Suitable for excavation, loading, and other vibration conditions, ensuring action accuracy and equipment operation stability (Cat®…).

Matching Usage: Uses with M8 locking nuts and flat washers. After adjustment, tighten to prevent loosening due to vibration.

Installation and Maintenance Points

Installation: Clean the mounting threaded hole, apply thread-locking adhesive, screw the adjusting screw into the target position, tighten with an Allen wrench, and then tighten the locking nut (torque 8-10 N·m) to ensure no loosening.

Maintenance: Check the tightness of screws and nuts every 200 hours, clean surface oil, and check for stripped threads or corrosion. Replace immediately if any abnormalities are found.

Replacement: When disassembling, first loosen the lock nut, unscrew the old screw, install the new part, and fix it in the original adjustment position. Tighten the lock nut to ensure adjustment accuracy and reliable connection.