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Stick cranes

  • Provisional maintenance and checking
  • Points to be checked
Points to be checked during operation
  1. 1) Are there any points where hydraulic oil leaks out?
  2. 2) Is the crane operated normally? Is there any doubt noise?
  3. 3) Isn’t the temperature of hydraulic oil high? Stop operating when the temperature of hydraulic oil exceeds 75 °C.
Points to be checked after operation
  1. 1) Is the condition OK for the next operation?
  2. 2) Are there any cracked or broken parts in the structure?
  3. 3) Are there any leaking oil on hoses, pipes or connecting parts?
Points to be checked after 1 month of operation
  1. 1) Is the sealing of the pressure adjusting system good?
  2. 2) Any leaking oil?
  3. 3) Do bolts and screws get loosened?
  4. 4) Do hoses, pipes, or connecting parts get loosened?
  5. 5) Are the locking devices in normal state?
  6. 6) Is the control valve operated smoothly?
  7. 7) Are hook and other cables broken?
  8. 8) Are there any cracked or broken parts on the structure?
  9. 9) Is hydraulic oil sufficient?
  10. 10) Is the lubrication sufficient according to the lubricating table?
  11. 11) Do a test operation and then check any abnormal sound.
Points to be checked after 6 months of operation
  1. 1) Clean the exterior parts of crane.
  2. 2) Is the sealing of the pressure adjusting system good?
  3. 3) Any leaking oil?
  4. 4) Do bolts and screws get loosened?
  5. 5) Is the connection of pump and hydraulic pressure part OK?
  6. 6) Do hoses, pipes, or connecting parts get loosened?
  7. 7) Are the locking devices in normal state?
  8. 8) Is the control valve operated smoothly?
  9. 9) Are hook and other cables broken?
  10. 10) Are there any cracked or broken parts on the structure?
  11. 11) Clean the strainer.
  12. 12) Is hydraulic oil sufficient?
  13. 13) Is the lubrication sufficient according to the lubricating table?
  14. 14) Do a test operation and then check any abnormal sound.