Cat Main Control Valve | Caterpillar Pressure Control Valve - Finotek
WebFT-112. PRODUCT TYPE: Cat Caterpillar Excavator E320B/D Main pressure relief valve. VALVE STYLE: Pressure relief type. VALVE TYPE: Pressure control valve, Relief Valve. CONTROL METHOD: Hydraulic. APPLICATION: Cat Caterpillar Excavator E320B/D. CONNECTION TYPE: Threaded Connection. APPROXIMATE WEIGHT: 1.20Kgs.
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Cat 320B Swing Problem | Heavy Equipment Forums
WebMay 18, 2018 · 3. Location: Philippinea. Hi when the hydraulic oil warms up the excavator doesn't swing anymore. We have tried to replace the solenoid. but now when the solenoid is connected to the power it's not turning anymore. but when we tried disconnecting the solenoid power it is possible to swing the excavator.
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Mobile hydraulics troubleshooting, Pt. 2
WebMistake No. 3 – Running too hot. Few equipment owners or operators continue to operate an engine that is overheating. Unfortunately, the same cannot be said when the hydraulic system gets too hot. But like an engine, the fastest way to destroy hydraulic components, seals, hoses and the oil itself is high-temperature operation.
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320C Excavator Hydraulic System – Accumulator (Pilot)
WebInsufficient supply of pilot oil flow to the pilot system may be caused by the following two reasons: Implements are lowered while the engine is stopped and oil supply to the main control valves is stopped. Combined operations Pilot oil from the pilot filter enters inlet port (27) of the pilot oil manifold.
Get a quoteKx 121-3 ss hydraulic thumb problem - OrangeTractorTalks
WebOct 2, 2019 · To operate the thumb on this machine you have to press the middle button on the display panel to activate the service port. Then use the rocker switch on your hand control to move thumb open and closed. If it doesnt work, be sure the light is on next to the activation button.
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320C Excavator Hydraulic System – Oil Makeup …
WebSep 29, 2019 · If the small hole on the main relief valve spool is blocked due to poor oil quality and the spool is normally open, the set relief pressure of the repairing excavator or the main relief valve is low, which will cause the actual overflow pressure to be low. That is, the system pressure is low.
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Troubleshooting charts for eight categories of hydraulic problems
WebMar 21, 2016 · We'll say that the unusually slow cylinder function provides bucket curl motion on an excavator, and that the boom and stick cylinders are working fine. This sounds like a flow rate problem for the bucket curl cylinder sub-circuit. The schematic (found on page 48) helps us see the sub-circuit components for the control of the cylinders.
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Mini Crawler Excavator Made in China Mini Digger
WebAfter-sales Service: Free Parts Warranty: 1 Year Type: Crawler Excavator Usage: Mining Excavator Bucket: Backhoe Transmission: Hydraulic Transmission
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Causes and maintenance of the work failure of Komatsu hydraulic excavator
WebPilot oil is sent from the pilot control valve to port (15) of stick drift reduction valve (16) . Spool (11) shifts downward until the spool contacts plug (22) . The oil in spring chamber (4) flows through passage (5), the orifice in spool (11), spring chamber (20), passage (21), port (18) and drain line (13) to the hydraulic tank.
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Used Caterpillar 320B Excavator for sale | Machinio
WebNov 1, 2017 · Excavator Tracks. The tightness and condition of your excavator's tracks can impact the behavior of your final drive or travel motor. If the tracks are too tight, this causes high friction which can impede the torque generated by the travel motor. If the tracks aren't too tight, then check that the track, track idlers, and track rollers are
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320C Excavator Hydraulic System – Boom Drift Reduction Valve
Web320C Excavator Hydraulic System – Boom Drift Reduction Valve The boom drift reduction valve is placed in the boom circuit between the main control valve and the boom cylinders. When the joystick for the boom is in the NEUTRAL position, the boom drift reduction valve stops oil leakage from the head end of the boom cylinders.
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(PDF) Schematic 320B excavator | Jadi Purwono - Academia.edu
WebIts resistance changes to give an indication to Lighter E-1 A Switch - ATCH Lower Wiper D-3 B T the gauge of the temperature or pressure. 320B Excavators 175 RD Fan Ckt Control Circuits Meter - Service F-1 A Switch - ATCH Power Window limit B-6 A 176 YL Aux Ckt 763 BU Torque Converter SW Monitor F-1 A Switch - ATCH Refueling A-4 41 177 RD Main …
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Huateng Mini digger 2 tons small hydraulic rubber crawler excavator …
WebChina Backhoe Loader Digger 2500kg Mini Excavator, Find details about China Excavators, Mini Excavator from Backhoe Loader Digger 2500kg Mini Excavator - Shandong LEITE machinery Co., Ltd.
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320C Excavator Hydraulic System – Stick Drift Reduction Valve
Web320C Excavator Hydraulic System – Stick Drift Reduction Valve The stick drift reduction valve is placed in the stick circuit between the main control valve and the stick cylinder. When the joystick for the stick is in the NEUTRAL position. The stick drift reduction valve stops oil leakage from the rod end of the stick cylinder.
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320C Excavator Hydraulic System – Pilot Valve (Swing - CAT Sch
Web320C Excavator Hydraulic System – Pilot Valve (Swing Parking Brake) Swing parking brake solenoid valve (2) is located on the pilot oil manifold. When any one of the joysticks is moved from the NEUTRAL position, the swing parking brake solenoid valve is energized in order to release the swing parking brake.
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Common fault analysis and troubleshooting of Komatsu excavator
WebNov 15, 2018 · Common fault analysis and troubleshooting of Komatsu excavator. 1. Hydraulic system heating caused by external causes. For example, the engine of the Komatsu PC200-7 excavate hydraulic pump is connected by a damping damper inside the shock absorber. When dealing with the thermal failure of an excavator hydraulic system, …
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Why Is My Final Drive Motor Weak? - Final Drive Parts
WebJun 21, 2021 · Starting motor speed is getting low. How to check? Firstly, check and clean the battery pile head. Tighten the pile head screws if necessary. If the battery is fine, the next step is to check the circuit along the battery to see if there is a broken or a loose connector. After that, check the relay and fuse panel.
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Used Caterpillar 320B Excavator for sale | Machinio
WebUSED. Manufacturer: Caterpillar. Model: 320B. For more details, please contact: 1-705-493-1286 Very well maintained Cat 320B Delimber, 25191hrs, raised cab, forestry cab shield, Denharco 3500 delimber with butt and top saw. Major Work- 2019 new sprockets @ …
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5 Steps for More Effective Hydraulic Troubleshooting
WebCheck circulation/filter pump for problems. Hydraulic unit temperature high. Check cooling pump operation. Check the cooler water strainer. Check water thermostat operation. Check that none of the pressure relief valves were set too low. If required, correct the setting. Return filter blocked.
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Caterpillar Excavator Fault Code List | SINOCMP
WebOct 16, 2019 · 420D. Power supply is too high (above 32 volts) 420E. Engine speed knob is not in one of 10 specified positions. 4301. Alternator and speed sensor data does not match 1 (alternator abnormality) 4302. Alternator and speed sensor data does not match 2 (speed sensor error) 4303.
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