Where is Sunward Intelligent Vintage 25 Crawler Solenoid Valve

Analysis of possible causes of failure: 1. The diesel fuel used is poor, and there are many floating objects and impurities. 2 Diesel filter is clogged.

3 Air leakage in the oil inlet pipe. 4 The diesel fuel transfer pump is damaged. 5 The battery is not sufficient.

6 The parking solenoid valve is damaged. Sunward Smart 50 small excavator is difficult to start, and it stops quickly after starting Longnan, Gansu"Sunward Smart 50 small excavator is difficult to start, and it stops quickly after starting"Fault site inspection: 1 Check whether the battery is normal, if the power is not enough, it should be charged, or the battery should be connected in parallel from other equipment 2 Check whether the filter element is blocked, if it is blocked, replace the filter element; Fill the new filter cartridge with clean diesel, load it, and exhaust the air side by side; For the first time, because the oil circuit is not fully filled with fuel, the start-up time is slightly longer, but not more than 10 seconds; If the start-up fails, it must be stopped for 2 minutes to allow the motor to cool down sufficiently before starting, otherwise, it is easy to burn out the start-up motor.

If it is winter and it is difficult to start, you should also check whether the oil supply rack is in the oil supply position and whether the preheating system is normal. 3 After three consecutive boot failures, other causes should be found. Remove the parking solenoid valve when necessary, and reset the rack.

Seiko excavator repair plant in Longnan, Gansu"Sunward Smart 50 small excavator is difficult to start, and it stops quickly after starting"The whole process of fault maintenance.

Why does Sunward Intelligent 100 excavator need to add a sub-battery to start the engine?

The following walking motor has a pipe of high and low speed oil pipe should be able to be found up, generally draw a position of the valve in the figure, such as the position of the oblique arrow, so that how the oil and gas circuit passes through the position of the valve is clear. The second position is the position of the straight arrow, and the diagram of the straight arrow should be replaced with the position of the oblique arrow, which is connected with the oil and gas road. In this way, the direction of the oil and gas road changes.

There are several boxes on the solenoid diagram number representing several locations

Generally, there are 2 digits and three digits, and then look at a box with a few contacts, generally there are three or five, the general valve is 2 three-way, 2-position 5-way single electronic control, 2-position 5-way double electronic control, 3-position 5-way ** closed, 3 position 5-way **exhaust, 3-position 5-way ** pressurized type. The 3-bit 5-way are all double electronically controlled point heads, and the number of point heads can be judged by looking at the mark of the little head on the drawing number.

The walking solenoid valve must be installed on the pilot system, and the various brands of excavators on the market are generally installed next to the pilot operation block and accumulator. On the pilot accumulator, the solenoid valve on the large pump is a proportional solenoid valve. Some large pumps also have 2 pressure tests on them.

Sensor. But there is no walking solenoid valve on the large pump. The travel solenoid valve is in the pilot system, not in the main oil circuit.