Description
6N-3504: Governor Spring Seat
| 6N-3504: Governor Spring Seat |
| 511-6891: Bearing-Cone (DLC Extended Life) |
| 130-3639: 169.48mm ID Retainer Freewheel Cam Sleeve |
| 597-8049: Retainer As |
| 296-6268: Bearing – Needle(Debris Resistant) |
| 8X-5489: Engine Wiring Sleeve |
| 177-4149: Bearing – Cup(Debris Resistant) |
| 7C-1511: 34.14mm Outer Diameter Plunger Ring |
The CAT 6N-3504 is a core support component of Caterpillar engine governors, used to position and stabilize the governor spring, ensuring precise engine speed control. Key information is as follows:
Core Parameters
Item Details
Type: Governor spring seat, compatible with mechanical centrifugal governors, installed between the governor spring and rocker arm/lever, providing spring mounting reference and axial positioning, preventing spring misalignment, and ensuring speed control accuracy.
Compatible Models: Cat 3204, 3304, 3306 engines, commonly found in D4H bulldozers, 950F loaders, 769C mining trucks, etc., compatible with mechanical centrifugal governor assemblies.
Material and Process: Body: 40Cr alloy structural steel, heat-treated, hardness HRC28-32; Surface: Blackened + anodized, corrosion resistant; Center Hole: Inner hole roughness Ra≤1.6μm, compatible with spring guide rod, ensuring assembly accuracy.
Dimensions (Metric/Imperial): Outer Diameter 38mm (1.496 inches), height 12mm (0.472 inches), center bore diameter 10mm (0.394 inches), weight approximately 0.05kg (0.11 lbs)
Installation and Positioning: Fits into the governor housing, positioning the spring guide rod through the inner bore. The top supports the lower end of the governor spring, and the bottom contacts the governor rocker arm/lever, ensuring stable spring preload with an axial clearance ≤0.1mm.
Functions and Suitable Scenarios:
Core Function: Provides stable support and precise positioning for the governor spring, preventing radial offset or axial movement during operation. Ensures precise control of engine speed by the governor, suitable for speed regulation needs under low-to-medium speed and medium-load conditions.
Suitable Scenarios: Replacement during major/minor engine governor overhauls when spring seat wear, deformation, or surface pitting causes governor spring positioning failure, engine speed fluctuations, unstable idling, etc., ensuring stable engine operation and improving fuel economy and power output stability.
Performance Characteristics: Made of alloy structural steel, the tempered steel achieves a balance of strength and toughness, making it suitable for long-term compression and vibration conditions of the speed governor spring. It exhibits excellent wear resistance and fatigue resistance.
Surface oxidation treatment provides strong corrosion resistance, making it suitable for the high-temperature, dusty, and oil-mist environment of the engine compartment, extending its service life.
High-precision center hole and flat surface machining ensure coaxiality of the spring installation, reducing spring wear and improving the speed governor’s control accuracy.
