I have a 331 Bobcat mini excavator. When I set down and let the arm rest down the track and blade will work but the joysticks will not. I have played with the safety switch and even tried to jump around the switch, but nothing.
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Analysis Of Cause Of Excavator Dropping Arm And Principle
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To set pressure, just loosen the jam nut on the relief valve and back the setting out to the new lower pressure, Factory setting will damaged thumb cylinders. Be sure to set the pressure for both sides of the auxiliary valve. The top one is easy, the bottom will be difficult to reach and hold the tools.
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Ground Pressure 47.1 kPa Maximum Bucket Breakout Force 96.3 kN Maximum Arm Digging Force (2,320 mm Arm) 59.8 kN Maximum Arm Digging Force (2,570 mm Arm) 55.8 kN Traction Force 145 kN Boom Swing Angle (Left/Right) 77°/ 53° ENGINE Model DEUTZ TCD3.6L4 Rated Output (ISO 14396) 85 kW/2000 min-1 Maximum Torque 460 Nm/1600 min-1 Displacement 3,621 ml
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Larger arm crowd force and digging force pro-vide increased production Large bore cylinders are installed on the short arm to greatly increase digging forces and productivity in tough conditions. The arm crowd force has increased 8% and the bucket digging force has increased 7% when the Pow-erMax function is applied (compared to the PC240-6).
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First test of hydraulic pressure on my XN08 mini-X. I made up a pigtail connection to adapt the metric hose to a JIC fitting, and a hydraulic gauge. I used
Learn MoreA swing motor control method in an open center type hydraulic system for a hydraulic excavator is provided, which can adjust the speed of a swing motor so that a swing device and a working device harmonize with each other according to a discharge pressure of a hydraulic pump during a multifunctional work of the working device and the swing device.
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Komatsu excavator pilot pressure system and sensor
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operation, lubrication, maintenance, adjustment and Accidents check guidelines which is primarily for the operator and the maintenance crew. The operator should read this manual carefully before operating or working on the excavator. Only after you are familiar to the information of this manual that you are allowed to operate the Excavator.
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adjusting pressure feedback control with pole placement and using an independently-measured fluid-controlled power system to reduce vibrations. This study presents the design and analyses of a mini excavator with a weight of 1000-1500 kg, power of 10-12 hp and pressure of 175 bar. II. MINI EXCAVATOR DESIGN
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Maximum arm crowd force (ISO 6015): 101 kN (10.3 t) 108 kN (11.0 t) (with Power Max.) Maximum bucket digging force (ISO 6015): 138 kN (14.1 t) 149 kN (15.2 t) (with Power Max.) Measured with Power Max. function, 2925 mm arm and ISO 6015 rating. 7 % UP 8 % UP One-touch power max. switch E0 Economy mode E1 Economy adjustment 1 E2 Economy adjustment 2
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Oct 08, 2021 · The long arm excavators is weak. The size of the digging force is determined by the output pressure of the main pump, and whether the engine is holding back depends on the relationship between the absorption torque of the oil pump and the output torque of the engine. You can adjust the machine by turning the adjustment screw. ②The
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May 01, 2015 · Main components of excavator high-pressure arm cylinder: 1–cylinder tube, 2–piston rod, 3–cylinder cover, 4–floating cushioning bush, 5–piston, 6–floating cushioning bush, 7–cylinder head, and 8–cushioning ring. 2.1. Rod-side chamber. Cushioning units …
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Apr 09, 2019 · Prosedur setting/adjusmentEngine/mesin full trottleOil temperature 45-55°Cmode Psaat boom rise reliefhight pressure saat heavy lift Onlow pressure saat heavy
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To set pressure, just loosen the jam nut on the relief valve and back the setting out to the new lower pressure, Factory setting will damaged thumb cylinders. Be sure to set the pressure for both sides of the auxiliary valve. The top one is easy, the bottom will be difficult to reach and hold the tools.
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I have a 331 Bobcat mini excavator. When I set down and let the arm rest down the track and blade will work but the joysticks will not. I have played with the safety switch and even tried to jump around the switch, but nothing.
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name it. Never has there been an excavator so easy to operate, so natural, so intuitive, so responsive. HydrauMind allows the load-sensing and pressure compensating valves to automatically adjust to individual work applications. Adjustments are sensed by the valves. Electronic controls maximize the engine horsepower so
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Sep 19, 2018 · The control valve for the excavator according to claim 8, wherein the hydraulic oil flowing through the arm-use second spool valve reaches the arm cylinder through an arm-use bridge pipeline, and the arm-use bridge pipeline causes the parallel pipeline to selectively communicate with either one of an arm bottom pipeline or an arm rod pipeline.
Learn MoreJun 11, 2019 · The adjustment of the main relief valve is divided into two parts. The following bricks explain the specific adjustment steps for everyone: Adjust the boost pressure in the boost function: 1 Loosen the lock nut "A" and turn the adjusting nut "B" clockwise. 2 Loosen the lock nut "C" and turn the adjusting nut "D" clockwise.
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Maximum arm crowd force (ISO 6015): 218 kN (22.2t) 233 kN (23.8t) (With Power Max.) Maximum bucket digging force (ISO 6015): 259 kN (26.4t) 278 kN (28.3t) (With Power Max.) Measured with Power Max function, 3380 mm arm and ISO 6015 rating 7% UP 7% UP HYDRAULIC EXCAVATOR Working Modes Selectable Two established work modes are further improved. P
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