How to repair Komatsu excavator slowly [professional]

Failure phenomenon:

The PC200-8 Komatsu excavator purchased in 2011 has been used for 5,760 hours. The machine is used to excavate the earthwork on the construction site. Recently, the Komatsu PC200-8 excavator has been slow to rotate during the construction. The fault of the revolving is divided into: excavation There is no rotation of the machine, no power of the excavator, low rotation speed, uneven rotation, automatic rotation, high noise during rotary braking, abnormal noise of the excavator.

How to repair the Komatsu PC200-8 excavator slowly [professional]

cause of issue:

"How to repair Komatsu excavator slowly?"

1. It is possible that the rotary pilot pressure is too low.

2, there may be problems with the main control valve

3, there may be problems with the swing motor

4. It is possible that the main safety valve has failed.

5, there may be a failure of the charge valve

6, there may be a fault in the variable piston pump

malfunction repair:

"How to repair Komatsu excavator spare parts slowly?"

1. Check if the pilot pilot pressure is too low? Make adjustments

2. Check if the problem of turning the main control valve? Repair or replacement

3. Check if there is a problem with the swing motor? Repair or replacement

4. Check if the main safety valve has failed. replace

5. Check if there is a fault in the charge valve? replace

6. Check if the variable piston pump is faulty? replace

Komatsu PC200-8 excavator parameter introduction

Rated power (Kw/rpm): 110/2000

Engine model: Komatsu SAA6D107E-1

Stick digging force (kN): 108

Bucket digging force (kN): 149

Bucket capacity (square): 0.8

Machine working weight (kg): 19900

Komatsu excavator model:

Komatsu PC200-8, Komatsu PC60-7, Komatsu PC360-7, Komatsu PC70-8, Komatsu PC450-8, Komatsu PC56-7, Komatsu PC130-7, Komatsu PC200-8 Hybrid (hybrid), Komatsu PC8000 Shovel, Komatsu PC220-8, Komatsu PC400-8, Komatsu PC110-7, Komatsu PC60-8, Komatsu PC200-6, Komatsu PC2000-8, Komatsu PC240LC-8, Komatsu PC160-7, Komatsu PC300-7, Komatsu PC270-7, Komatsu PC210LC-8M0, Komatsu PC220-8M0, Komatsu PC220-8M0, etc. https://jnjmzm.wixsite.com/sdjygcjx