SBS80 Hydraulic Pump Spare Parts, E312C Saddle Assembly, E315D Left & Right Drive Shaft For Medium Excavator

Core Keywords: SBS80 hydraulic pump repair parts, E312C saddle assembly, E315D drive shaft, medium excavator hydraulic pump spare parts, hydraulic pump swash plate assembly, hydraulic pump drive shaft replacement accessories

• Urban residential district foundation excavation & basement digging construction
• Highway, bridge and municipal road reconstruction medium-load excavation project
• Open-pit quarry & stone mine medium rock crushing continuous operation
• River dredging, channel renovation and water conservancy engineering excavation
• Sand yard bulk aggregate loading medium excavator long-hour operation
• Seoul urban old community transformation & subway foundation excavation construction
• Port bulk cargo handling medium construction machinery daily operation
• Independent machinery repair shop medium excavator full hydraulic overhaul service

This SBS80 hydraulic pump spare parts set contains E312C saddle assembly and E315D left & right drive shaft, perfectly fits medium-load construction working conditions. Replace worn internal pump parts to eliminate hydraulic system failures and reduce machine downtime for global repair shops, machinery rental firms and engineering contractors.

• Insufficient hydraulic output power: Worn drive shaft and saddle assembly lead to inefficient power transmission, slow digging and weak excavation force
• Pump abnormal vibration & metal knocking noise: Abraded saddle sliding surface and drive shaft cause continuous vibration and harsh noise during operation
• Drive shaft abrasion & deformation: Long-time heavy load operation leads to shaft wear, power transmission interruption
• Internal oil leakage: Damaged saddle assembly sealing surface causes internal leakage, unstable pump output flow
• Pump overhigh temperature: Friction of worn saddle and drive shaft generates excess heat, accelerate seal aging

• Travel deviation, unilateral slow walking: Worn piston and valve plate lead to inconsistent left-right displacement
• Poor ramp climbing torque: Internal friction part wear reduces driving force, machine slips on steep slopes
• Travel motor oil leakage: Aging shaft seal causes hydraulic oil outflow from motor housing
• Walking abnormal noise & vibration: Worn gear and bearing produce collision noise during travel

• Weak swing rotation torque: Internal distribution plate and seal wear lead to insufficient swing power, slow slewing
• Swing jitter & abnormal friction noise: Damaged reducer bearing creates metal knocking noise during rotation
• Swing shaft oil leakage: Damaged rotary oil seal leads to continuous hydraulic oil spill
• Swing stuck stall: Long continuous rotation leads to internal overheating and clamping stagnation
• Swing system overheating: Heavy load swing friction accelerates seal aging and component wear

• Spool stuck: Impurities block spool gap, heavy operation handle, slow boom and bucket action reset
• Internal & external oil leakage: Worn gap between spool and valve body leads to mutual interference of each digging action
• Overflow valve pressure failure: Stuck relief valve causes system pressure abnormality

• Insufficient power & black exhaust smoke: Blocked air filter, aging fuel injector lead to incomplete combustion
• Excessive water temperature & engine oil temperature: Radiator silt blockage trigger high temperature alarm
• Difficult cold startup: Starter failure, battery aging or air entering fuel pipeline

A1: This SBS80 spare parts set repairs insufficient hydraulic power, pump vibration noise, drive shaft abrasion, saddle sliding surface wear and internal pump oil leakage on medium excavator main pump.

A2: E312C saddle assembly and E315D left & right drive shaft are matched for SBS80 main pump, please confirm your pump model before ordering.

A3: We support single piece trial order and large bulk wholesale, suitable for maintenance shops, machinery rental merchants and engineering contractors.

A4: Our SBS80 hydraulic pump repair parts supply local Seoul machinery repair shops, stable sea shipment to South Korea, single and batch orders are acceptable.

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