SBS80-CAT312 Aftermarket Hydraulic Main Pump For Excavator Hydraulic System
SBS80-CAT312 Hydraulic Main Pump For Excavator Hydraulic System Maintenance
Core Keywords: SBS80-CAT312 hydraulic main pump, excavator hydraulic pump spare parts, construction machinery hydraulic pump, digger main pump replacement assembly
1. Construction Working Application Scenarios
- Excavator earthmoving & foundation excavation construction
- Municipal road renovation and pipeline engineering projects
- Quarry and stone crushing operation
- Sand yard aggregate loading work
- Rural trench excavation and channel dredging
- Light port material handling machinery
This SBS80-CAT312 hydraulic main pump is widely matched for excavator hydraulic system. Stable performance effectively resolve common hydraulic pump faults and reduce equipment downtime for global machinery repair shops, rental merchants and engineering contractors.
2. Typical Hydraulic Pump Faults & Repair Solutions
2.1 SBS80-CAT312 Hydraulic Pump Common Failures
- Insufficient hydraulic output power: Internal wear leads to weak digging force
- Pump abnormal vibration & noise: Worn friction components cause continuous shaking
- Pump overhigh oil temperature: Long-hour load operation leads to sustained overheating
- Internal and external oil leakage: Aging sealing parts cause hydraulic oil spill
- Unstable flow output leads to whole machine jitter
2.2 Travel Motor Common Faults
- Travel deviation, unilateral slow moving
- Insufficient climbing torque, machine slips on slopes
- Travel motor oil leakage and abnormal running noise
2.3 Swing Rotary Motor Common Faults
- Weak swing rotation torque, slow slewing
- Swing jitter and friction knocking noise
- Swing shaft oil leakage, swing stuck stall
- Swing motor overheating after long continuous operation
2.4 Multi-way Control Valve Faults
- Control spool blocked by hydraulic impurities
- Valve body internal leakage, slow boom and bucket action
- Overflow valve pressure abnormality
3. Frequently Asked Questions
Q1: What excavator models fit SBS80-CAT312 hydraulic pump?
A1: SBS80-CAT312 hydraulic main pump fits multiple excavator models, suitable for hydraulic system overhaul maintenance.
Q2: Are aftermarket pumps stable for construction work?
A2: All pumps adopt standard specifications, strictly tested before delivery for long service life.
Q3: Small trial order acceptable?
A3: We support single piece trial order and bulk wholesale, suitable for repair workshops, machinery rental firms and engineering contractors.
Q4: Sea freight to South Korea available?
A4: Stable sea freight service to South Korea, professional export packaging for small and bulk orders.
4. Matching Hydraulic Machinery Spare Parts Reference Table
| Component Name | Model | Solvable Faults |
|---|---|---|
| Hydraulic Main Pump | SBS80-CAT312 | Low power, vibration noise, oil leakage, overheat |
| Hydraulic Pump Overhaul Repair Kit | HPV95 | Excavator main pump internal wear repair |
| Travel Motor Repair Parts | GM09VA | Travel deviation, slow travel, oil leakage |
| Swing Motor Assembly | M5X180 | Swing weak torque, jitter, shaft oil leak |
5. Product Advantages
- Complete hydraulic main pump for direct replacement
- Standard aftermarket specification, stable working performance
- Rich fault keyword coverage, capture overseas repair customer search traffic
- Fit multiple construction machinery working scenarios
- Support small trial order and bulk export wholesale
- Compatible with matched travel motor, swing motor and distributing valve assemblies
