1. Gear End Face Grinding Specifications
Precision Requirements: Utilize high-accuracy grinding equipment operated by certified technicians to ensure perpendicularity between gear surfaces and bearing bores.
Workspace Standards: Maintain an immaculate grinding platform to prevent particle-induced alignment deviations.
Post-Grinding Inspection: Verify surface integrity and geometric accuracy through standardized quality control protocols.
2. Gear Pump Assembly Protocol
Component Orientation: For symmetric pump housings with inlet wear, implement 180° rotation after directional marking of passive gears.
Gear Configuration: Prohibit active gear reversal (integrated with shafts); optimize passive gear meshing through controlled repositioning.
Operational Verification: Post-assembly manual rotation tests with lubrication ensure mechanical smoothness.
3. Bearing Replacement Strategy
Synchronized Renewal: Simultaneous replacement of end-face bearings eliminates axial instability caused by clearance discrepancies.
4. Safety Valve Pressure Failure Analysis
Sealing Integrity: Prioritize inspection of conical valve-seat interfaces when pressure regulation fails despite unobstructed damping orifices.
5. Perpendicularity Deviation Identification
Assembly-Based Diagnosis: Binding during post-assembly rotation tests (even after fastener adjustment) combined with surface scoring confirms vertical misalignment.
Excavator Track System Fault Resolution
1.Unidirectional Track Movement
Root Cause: Overload relief valve seizure in travel motor hydraulic circuit.
2.Slow Track Speed During Combined Operation
Flow Optimization: Adjust plunger pump control valves to compensate for insufficient hydraulic supply.
3.High-Resistance Control Lever
Valve Leakage Mitigation: Address internal oil leakage in manual-operated distribution valves through precision refurbishment.
4.Engine Load Surge During Track Activation
Hydraulic System Calibration: Reconfigure variable displacement mechanisms in plunger pump assemblies.
5.RPM-Dependent Track Failure
Valve Plate Compensation: Enhance clamping force via spring preload adjustments or shim additions.