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{"title":"Rexroth Original German Quantitative High-Pressure Hydraulic Gear Pump with 28cc","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/b4\/95207730f3b799eff1119aca8867-200x200-1\/rexroth_original_german_quantitative_high_pressure_hydraulic_gear_pump_with_28cc_140cc_displacement.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"PGH4-2X\/025LE11VU2 PGH4-2X\/025LR11VU2 PGH4-2X\/032RE11VU2 PGH4-2X\/032RE11VE4 PGH4-2X\/032RR11VU2","Certifiion":"ISO","Place of Origin":"German"}}
Check oil levels before start-up and during operation
Listen for abnormal noises during operation
Regularly record operating parameters (pressure, flow, temperature)
Change fluid filters periodically (every 1000 hours or as needed)
Check and replace worn or aged seals
Follow lubriion requirements
Inspect the coupling for looseness or wear
Insufficient Flow or No Flow
Possible causes:
Insufficient inflow due to high suction line resistance, low oil level, excessive pump speed, or clogged inlet
Excessive leakage from worn internal parts (pistons, cylinder block, port plate)
Swash plate angle set too small
Flow Output at Neutral Control Signal
Typically caused by control mechanism being off its neutral point due to misadjustment, looseness, or damage. Solution involves re-zeroing, tightening, or replacing the controller.
Fluctuating Output Flow
Often related to control piston mechanism issues caused by contamination, weak/damaged control amplifier spring, or other damaged components. Requires disassembly for inspection and possible part replacement.
External Oil Leaks
Potential leak sources:
Shaft seal damage or wear
Loose hose connections or damaged fittings
Leaks from variable mechanism cover bolts
Case imperfections (rare)
High case pressure from excessive internal leakage
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification:
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...