Excavator maintenance in hot summer

First, there are several aspects of the daily maintenance of the excavator spare parts

All butter mouths, slewing bearings, butter once every 10 days and 15 days, butter twice every 4-8 hours at different angles, each gearbox is replaced within 520 hours for the first time, and replaced 2-3 years later. Second, the engine must be warmed up for 10-15 minutes before it can work.

Second, the hydraulic oil is divided into two ty

pes: winter and summer.

The winter oil is No. 32 or No. 46, and the summer oil is No. 68 or No. 100. It must be anti-wear hydraulic oil. The difference is that the summer temperature is high, the viscosity of the hydraulic spare parts oil used is high, the winter temperature is low, and the viscosity of the hydraulic oil used is low.

Third, what parts of the excavator are easy to loose

The slewing bearing reducer and the engine's screws are loose, and the thread glue is required and must be tight.

Fourth, after the parking call

Before the flameout, it must run at low speed for 10-15 minutes. First, the stick and the bucket are perpendicular to the ground. The pilot valve moves a few times to depressurize the pressure in the hydraulic oil system.

6. How to change gear oil for rotary reducer and travel reducer

Put the gear oil off, add the diesel and then idling the car for 5 minutes, then let go of the diesel and then add the gear oil. The gear oil should be added to the double drive line No. 18, 120-9 travel reducer plus gear oil for each 3.5 liter, the speed is reduced. Machine plus gear oil 3.5 liters, 70-8 travel reducer plus gear oil for each 7 liters, slewing reducer plus gear oil 3 liters. 85-7 wheeled front axle plus gear oil, rear axle plus gear oil

7. Matters needing attention before the operation of the wheeled excavator

Before the wheeled Komatsu excavator spare parts must work, the dozer blade and the rear leg must be leveled, and the front wheel must be level with the car to work.

Eight, comprehensive maintenance of wheeled excavators

Regularly check the looseness of the screw of the vehicle, the slewing bearing and the front and rear axle screw connection plates of the walking part are tightly tightened.

Nine, how to do hydraulic cylinders and oil leakage

The hydraulic cylinder is strictly forbidden to terminate, which will cause the cylinder to fall off and the guide sleeve to be damaged early, the seal ring to wear, the cylinder stroke to be controlled, the seal ring to wear normally, and the seal to be replaced. Hydraulic oil impurities cause damage to the seal and filter hydraulic oil to replace the seal.

X. Maintenance of the main pump of the komatsu spare parts

The hydraulic oil used first must be clean, in accordance with the seasonal use label at the time, to ensure that the oil inlet pipe is unblocked, no air is allowed, the net is cleaned regularly or the filter element is replaced, the hydraulic oil is not allowed to contain moisture, and the hydraulic oil is replaced according to the season. When replacing the oil, loosen the exhaust bolt and exhaust the air.