Repair and maintenance of excavator parts in summer

The summer is coming,how to repair and maintenance of excavator parts?FRB Bearing will be analyzed from the following points:

1.What are the aspects of daily maintenance of excavators?
All yellow nozzles and slewing bearings shall be covered with butter once every 10 days and 15 days, and butter shall be beaten twice every 4-8 hours at different angles. Each reducer shall be replaced within 520 hours after the first operation, and 2-3 times in the following year. The engine must be preheated for 10-15 minutes before operation.



2.There are two kinds of hydraulic oil in winter and summer
Winter oil is NO. 32 or 46, summer oil NO. 68 or 100, must be anti-wear hydraulic oil.The difference is summer high temperature, high viscosity of the hydraulic oil used; winter low temperature, low viscosity of the hydraulic oil used.

3.What parts of the excavator are easy to loosen?
Swing bearing reducer and engine screw are loose, which require and apply thread glue, must be tight and firm.

4.What matters should be noted after parking?
Before extinguishing fire, must run at low speed 10-15 minutes, first will bucket lever and shovel bucket perpendicular to the ground, the pilot valve moves a few times, in the hydraulic oil system pressure all unload until.

5.What is the structure of the rotary reducer?
Rotary motor, motor fixed frame, one shaft drive, samsung frame, one shaft, samsung hoist, drive gear ring, vertical shaft.

6.What is the internal structure of the walking speed reducer?
Walking motor, first speed reducer, inner gear ring, samsung frame, samsung hoist, reducer fixing frame, half shaft, drive gear ring.

7. How to change gear oil for rotary reducer and walking reducer?
Put the gear oil out, put the diesel oil out after 5 minutes of idling, and then add the gear oil. The gear oil should be added with dual drive line 18, the 120-9 gear reducer and gear oil 3.5 liters each, the rotary gear reducer with gear oil 3.5 liters, the 70-8 gear reducer and gear oil 7 liters each, and the rotary reducer with gear oil 3 liters.85-7 wheel-type front axle with gear oil, rear axle with gear oil

8.What matters should be noted before wheel excavator operation?
The wheel excavator must level off the earth pushing shovel and the back leg before working.

9.What are the comprehensive maintenance aspects of wheel excavator?
Regularly check the looseness of the whole screw, the rotary support and the front and rear axle screw connecting plate of the walking part.

10.Hydraulic cylinder, oil leakage?
It is strictly prohibited to stop the hydraulic cylinder, which will lead to the early air discharge of the cylinder and the damage of the guide sleeve, the wear of the sealing ring, the control of the cylinder stroke, the normal wear of the sealing ring and the replacement of the sealing element. The impurities of the hydraulic oil cause the seal damage, and the filter hydraulic oil changes the seal.

11.How should the  pump of excavator be maintained?
First of all, the hydraulic oil used must be clean, in accordance with the service mark of the season at that time, to ensure that the oil inlet pipe is unimpeded, no access to air, regular cleaning of the net or replacement of the filter element, no moisture content in the hydraulic oil, according to the season, the hydraulic oil should be replaced, the force source pump should loosen the exhaust bolts when replacing the oil for fuel, and expel air.