HPV55 Aftermarket Hydraulic Pump Repair Kit For Medium Excavator Main Pump Spare Parts

Place of Origin:China
Brand Name:HanRui
Model Number:HPV55
Product Details
Product Type: Hydraulic Main Piston Pump Assembly
Application: Small & Medium Heavy Excavator Construction Machinery
Condition: Brand New Aftermarket Replacement Spare Parts
Warranty: 12 Months Factory Warranty
MOQ: 1 Piece
Usage Scenario: Mining, Quarry, Road & Infrastructure Construction
Solved Problems: Oil Leakage, Low Torque, Equipment Vibration & Swing Failure
Product Description
HPV55 hydraulic pump repair kit compatible with medium excavator main pump aftermarket overhaul spare parts for construction machinery hydraulic system maintenance
HPV55 Hydraulic Pump Repair Kit, Medium Excavator Main Pump Overhaul Spare Components For Hydraulic System Repair

Core Keywords: HPV55 hydraulic pump repair kit, medium excavator main pump spare parts, hydraulic overhaul parts, hydraulic drive spare parts, excavator hydraulic repair accessories

1. Global Medium Construction Working Application Scenarios List
  • Urban residential 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 HPV55 hydraulic pump repair spare parts kit is widely matched for medium excavator main hydraulic pump. Complete internal repair components effectively resolve hydraulic pump common faults and reduce equipment downtime for global machinery repair shops, rental merchants and engineering contractors.

2. Common Hydraulic Piston Pump Faults & Repair Solutions
2.1 HPV55 Hydraulic Pump Typical Failures
  • Insufficient hydraulic output pressure: Worn cylinder block, piston shoe and valve plate lead to internal oil leakage, weak digging force
  • Pump abnormal vibration & metal knocking noise: Scuffed friction surface generates continuous collision noise
  • Pump overhigh oil temperature: Long-time heavy load friction of worn internal parts leads to overheating
  • Internal & external oil leakage: Aging sealing parts and damaged sealing surface cause hydraulic oil spill
  • Unstable flow output: Uneven component wear leads to fluctuating flow and 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 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 operation
2.4 Multi-way Control Valve Faults
  • Control spool stuck by impurities
  • Valve body internal leakage, slow boom & bucket action
  • Overflow valve pressure abnormality
3. Frequently Asked Questions
Q1: What faults can HPV55 hydraulic pump repair kit solve?

A1: This repair kit fixes insufficient hydraulic pressure, pump vibration noise, internal oil leakage and pump overheating for HPV55 hydraulic pump used on medium excavator.

Q2: Are these aftermarket parts compatible with original HPV55 main pump?

A2: All spare parts adopt standard dimensions, fully compatible with HPV55 main pump for overhaul replacement.

Q3: Can I order small trial quantity?

A3: We support single piece trial order and large bulk wholesale, suitable for repair workshops, machinery rental firms and engineering contractors.

Q4: Shipping service to South Korea available?

A4: Stable sea freight to South Korea, accept small and bulk orders, professional export packaging.

4. Matching Hydraulic Machinery Spare Parts Reference
Component Name Model Faults To Solve
Hydraulic Pump Repair Kit HPV55 Low pressure, vibration noise, oil leakage, pump overheat
Hydraulic Pump Overhaul Spare Parts HPV75 Medium excavator main pump internal wear repair
Travel Motor Repair Kit GM09VA, GM38VB Travel deviation, slow travel, oil leakage
Swing Motor Assembly M5X180, TM18 Swing weak torque, jitter, shaft oil leak
5. Product Advantages
  • Complete repair spare parts, one-stop purchase for pump maintenance
  • Standard aftermarket size, easy direct replacement during repair
  • 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 matching travel motor, swing motor and distributing valve assemblies
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