Common Troubleshooting Methods for Rexroth Gear Pumps
$236.49
The concept of the German Rexroth gear pump is quite simple: its most basic form consists of two identical gears meshing and rotating within a tightly fitted housing. The housing's interior is shaped like an "8," housing the two gears with their outer diameter and sides fitting snugly into the housing. Material from the extruder enters between the two gears through the inlet, filling this space. As the gears rotate, the material moves along the housing and is finally discharged when the two gears mesh.
Brand
REXROTH/German Rexroth
Rexroth Gear Pump Agent, Rexroth External Gear Pump, Rexroth Internal Gear Pump, Rexroth Gear Pump Troubleshooting, Rexroth Gear Pump Principle
Rexroth is a leading expert in drive and control systems. Rexroth provides customized drive, control, and motion solutions for customers in industrial and factory automation, mobile machinery, and renewable energy sectors. Currently, as the choice of over 500,000 customers worldwide, Rexroth continuously provides high-quality electromechanical, hydraulic, pneumatic, and mechatronic components and systems. In over 80 countries worldwide, Rexroth is a reliable partner for local customers, helping them produce safer and more efficient machinery, thus contributing to the rational use of natural resources.
Rexroth's innovative solutions, whether for components or systems, stem from strong cross-technology expertise. Rexroth offers a wide range of drive and control products and systems, enabling customers to successfully overcome technological barriers and obtain optimal solutions. Rexroth's technologies have been successfully and widely applied in the industrial sector, with extensive system application knowledge in over 30 industrial fields. As a partner to manufacturers of machinery and systems, Rexroth's services solidify its global position.
Common Rexroth Gear Pump Faults
Rexroth Gear Pump Cannot Discharge
(1) Fault Phenomenon: Pump cannot discharge
Causes: a. Reverse rotation direction; b. Inlet or outlet valve closed; c. No material at inlet or low pressure; d. Viscosity too high, pump cannot bite
Solutions: a. Confirm rotation direction; b. Confirm valve is closed; c. Check valve and pressure gauge; d. Check liquid viscosity, whether flow rate proportional to speed appears when running at low speed. If there is flow, the inflow is insufficient.
Rexroth Gear Pump Insufficient Flow
(2) Fault Phenomenon: Pump Flow Insufficient
Causes: a. Inlet or outlet valve closed; b. Low inlet pressure; c. Outlet pipeline blockage; d. Packing box leakage; e. Speed too low
Solutions: a. Confirm valve is closed; b. Check valve is open; c. Confirm discharge rate is normal; d. Tighten; if a large leak affects production, stop operation and disassemble for inspection; e. Check actual pump shaft speed;
Rexroth Gear Pump Abnormal Noise
(3) Fault Phenomenon: Abnormal Sound
Fault Causes: a. Large eccentricity of coupling or poor lubrication b. Motor failure; c. Gearbox malfunction; d. Poor installation of shaft seal; e. Shaft deformation or wear
Countermeasures: a. Alignment or filling with grease; b. Check the motor; c. Check the bearings and gears; d. Check the shaft seal; e. Stop and disassemble for inspection
Rexroth Gear Pump Current Excessive
(4) Fault Phenomenon: Excessive Current
Fault Causes: a. Excessive outlet pressure; b. Excessive melt viscosity; c. Poor shaft seal fit; d. Shaft or bearing wear; e. Motor failure
Countermeasures: a. Check downstream equipment and pipelines; b. Check viscosity; c. Check shaft seal and adjust appropriately; d. After stopping, check by hand to see if it is too heavy; e. Check the motor
Rexroth Gear Pump Stops
(5) Fault Phenomenon: Pump Suddenly Stops
Fault causes: a) Power outage; b) Motor overload protection; c) Coupling damage; d) Excessive outlet pressure, interlock reaction; e) Abnormal pump entrainment; f) Shaft and bearing stuck. Countermeasures: a) Check power supply; b) Check motor; c) Open safety cover and check by turning the pump; d) Check instrument interlock system; e) After stopping, check by turning the pump in both forward and reverse directions; f) Check by turning the pump. Rexroth gear pump seal oil leakage. (6) Fault phenomenon: Seal oil leakage. Causes: a) Shaft seal not properly adjusted; b) Sealing ring worn and gaps large; c) Friction surfaces of the dynamic and static rings of the mechanical seal damaged; d) Spring loose. Countermeasures: a) Readjust; b) Tighten the cover bolts appropriately or replace the sealing ring; c) Replace the dynamic and static rings or re-grind them; d) Replace the spring. Rexroth gear pump AZPU series. Rexroth gear pump AZPT series. Rexroth gear pump AZPS series. Rexroth gear pump AZPN series. Rexroth Gear Pumps AZPJ Series
Rexroth Gear Pumps AZPG Series
Rexroth Gear Pumps AZPF Series
Rexroth Gear Pumps AZPB Series
Rexroth Gear Pumps 1PF2G2 Series
Rexroth Gear Pumps PGF Series
Rexroth Gear Pumps PGH 1X 2X 3X Series
AZPG-11-019LNMXXMX AZPG-11-022LHO30MB
AZPG-11-022LNM20MB AZPG-11-038LDC20PB
AZPG-11-022RCB20MB AZPG-11-032LCC20KB
AZPG-11-028RCB20MB AZPG-11-022LDC40KB
AZPG-11-032RCB20MB AZPG-22-022LDC07KB
AZPG-11-038RCB20MB AZPG-22-025LDC07KB
AZPG-11-045RCB20MB AZPG-22-028LDC07KB
AZPG-11-022RDC20KB AZPG-22-032LDC07KB
AZPG-11-028RDC20KB AZPG-22-036LDC07KB
AZPG-11-032RFB20MB AZPG-22-040LDC07KB
AZPG-11-032RDC20MB AZPG-22-045LDC07KB
AZPG-11-038RFB20MB AZPG-22-022LCB20MB
AZPG-11-038RDC20KB AZPG-22-025LCB20MB
AZPG-11-045RDC20MB AZPG-22-028LCB20MB
AZPG-11-032RHO30MB AZPG-22-032LCB20MB
AZPG-11-045RDR20MB AZPG-22-036LCB20MB
AZPG-11-032RDC20PB AZPG-22-040LCB20MB
AZPG-11-032RFB12MB AZPG-22-045LCB20MB
AZPG-11-022RQC40MB AZPG-22-022LHO30MB
AZPG-11-028RQC40MB AZPG-22-025LHO30MB AZPG-11-032RQC40MB AZPG-22-028LHO30MB
AZPG-11-038RQC40MB AZPG-22-032LHO30MB
AZPG-11-045RQC40MB AZPG-22-036LHO30MB
AZPG-11-022RDC40MB AZPG-22-040LHO30MB
AZPG-11-045RDC40MB AZPG-22-045LHO30MB
AZPG-11-028RHO30MB AZPG-22-045LCC20KB
AZPG-11-038RHO30MB AZPG-22-032LDC20MB
AZPG-11-045RHO30MB AZPG-22-022LDC20KB
AZPG-11-045RDC20KB AZPG-22-028LDC20KB
Our company mainly deals in European and American brands and can source brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)
American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS
British brands: Norgren
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi.
