What causes a cat 325C excavator to run slower?
What causes a cat 325C excavator to run slower?
(When it sees pressure) If no pressure can get to the control head (lines blocked) the flow should remain constant. (same speed for both tracks) If a NFC is leaking, this leakage will send pressure to the control head and limit pump output. (slower flows on that pump)
How to troubleshoot a cat hydraulic excavator with low power?
When it comes to troubleshooting low power concerns on a Cat® Hydraulic Excavator, Caterpillar Maintenance Expert Jeff Payne says look at the simple things first, such as checking your machine air filters and fuel filters for restrictions – before looking at cycle times; swing, stick, bucket and boom times, or valve adjustments.
What makes a Caterpillar 325 hydraulic excavator so good?
Combine these features with a compact radius design for working in tight spaces, a new cab, longer maintenance intervals that lower your maintenance costs up to 20%, and a power system that reduces fuel consumption by up to 25% and you have a low-cost-per-unit-of-production excavator that’s perfect for medium- to heavy-duty applications.
Where are the backup switches on a cat 325C excavator?
The circuit to the prv from the switch must be working or the override does not work. The backup switches are located under the right armrest. Switch the control from auto to manual (hand) and then the throttle can be set with the other switch. This is an easy ECM check and is only for emergencies.
(When it sees pressure) If no pressure can get to the control head (lines blocked) the flow should remain constant. (same speed for both tracks) If a NFC is leaking, this leakage will send pressure to the control head and limit pump output. (slower flows on that pump)
Why are the tracks on my Cat 320n not turning?
The smallest line running through the swivel will be the one to the travel motor speed actuators. You could try to plug it and see if anything changes. If the battery voltage dropped low enough, the solenoid valve for the two speed might drop out. Maybe it’s an electrical problem…..
Can a PRV problem affect a cat excavator?
A PRV problem would affect every function. Every Cat excavator I’ve seen requires pressure to move the travel motors to low displacement/rabbit mode. The smallest line running through the swivel will be the one to the travel motor speed actuators. You could try to plug it and see if anything changes.
The circuit to the prv from the switch must be working or the override does not work. The backup switches are located under the right armrest. Switch the control from auto to manual (hand) and then the throttle can be set with the other switch. This is an easy ECM check and is only for emergencies.
Where are the NFC lines on a cat 325C?
The NFC lines are connected to the pump control heads near the same area of the sensor and PRV solenoid and jumper line. The easiest way to tell the difference is the PRV jumper is connected to a tee. The NFC lines will be from the main control valve.
How does aeration and cavitation affect a hydraulic system?
This means that aeration increases the heat load on the hydraulic system. As already explained, cavitation is the formation of vapor cavities within the fluid. These cavities generate heat when compressed. Like aeration, cavitation increases heat load.
What causes a hydraulic system to lose lubrication?
Aeration accelerates degradation of the fluid and causes damage to system components through loss of lubrication, overheating and burning of seals. Air usually enters the hydraulic system through the pump’s inlet. For this reason, it is important to make sure pump intake lines are in good condition and all clamps and fittings are tight.
What are the symptoms of a hydraulic system problem?
A reduction in machine performance is often the first indication that there is something wrong with a hydraulic system. This usually manifests itself in longer cycle times or slow operation. It is important to remember that in a hydraulic system, flow determines actuator speed and response. Therefore, a loss of speed indicates a loss of flow.
This means that aeration increases the heat load on the hydraulic system. As already explained, cavitation is the formation of vapor cavities within the fluid. These cavities generate heat when compressed. Like aeration, cavitation increases heat load.
A reduction in machine performance is often the first indication that there is something wrong with a hydraulic system. This usually manifests itself in longer cycle times or slow operation. It is important to remember that in a hydraulic system, flow determines actuator speed and response. Therefore, a loss of speed indicates a loss of flow.
Aeration accelerates degradation of the fluid and causes damage to system components through loss of lubrication, overheating and burning of seals. Air usually enters the hydraulic system through the pump’s inlet. For this reason, it is important to make sure pump intake lines are in good condition and all clamps and fittings are tight.
The NFC lines are connected to the pump control heads near the same area of the sensor and PRV solenoid and jumper line. The easiest way to tell the difference is the PRV jumper is connected to a tee. The NFC lines will be from the main control valve.
How big is a 325d L hydraulic excavator?
Specalog for 325D L Hydraulic Excavator, AEHQ5665-04 Engine Engine Model Cat®C7 with ACERT™ Technology Net Flywheel Power 152 kW 204 hp Weights Operating Weight – 29 240 kg 64,460 lb Long Undercarriage • Reach boom, R3.2CB2 (10 ft 5 in) Stick, 1.1 m3(1.44 yd3) Bucket, 800 mm (32 in) Shoes 325D L
Which is faster left side or right side track?
in backup mode, machine tracks perfect at idle. At high rpm, right side lags a little with straight travel pedal all the way stroked. When straight travel pedal is only partially stroked, the right side is faster sometimes, depending on position of pedal. That points back to the pump control head.
The smallest line running through the swivel will be the one to the travel motor speed actuators. You could try to plug it and see if anything changes. If the battery voltage dropped low enough, the solenoid valve for the two speed might drop out. Maybe it’s an electrical problem…..
in backup mode, machine tracks perfect at idle. At high rpm, right side lags a little with straight travel pedal all the way stroked. When straight travel pedal is only partially stroked, the right side is faster sometimes, depending on position of pedal. That points back to the pump control head.
Is there a dealer for cat 305e2 mini hydraulic excavator?
Sorry, there is not yet a dealer for your territory in our eCommerce store. The Cat® 305E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.
What causes a cat excavator track drive to leak?
When CAT excavator track drive motors, like those on a Caterpillar 303 CR, come into the shop for repairs or re-manufacturing, the problem can often be traced to a leak between the sprocket and the back side of the hydraulic motor. That particular leak is caused by a failed floating face seal, also called a duo-cone seal or a mechanical face seal.
Is the cat 315B excavator traveling extremely slow?
We have got a CAT 315b Excavator that was traveling extremely slow so they replaced some seals. Not sure exactly the We use cookies to give you the best possible experience on our website.
What does the cat 305.5e2 mini excavator do?
The Cat® 305.5E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications. The durable hoods and frame and the compact radius design of the 305.5E2 let you work comfortably and confidently in confined areas.
What was the name of the cat excavator?
We have got a CAT 315b Excavator that was traveling extremely slow so they replaced some seals. Not sure exactly the name of that part right off but now one side travels great and the other will do nothing. Submitted: 10 years ago.
