Look out for visible defects
X
Check that there is no oil leakage
X
Remarks
2000 hours
1000 hours
500 hours
250 hours
25 hours
Checks and measures are to be documented in the crane’s maintenance log.
Daily / 8 hours
This table is a compilation of the service and maintenance measures described earlier. It is extremely important for the function of the crane and operating reliability that maintenance measures are carried out.
On each stop
Maintenance Chart
Check the attachment (grapple) and its suspension fitting X with regard to deformation Check the oil level in the slewing motor
X
Check that all prescribed signs are fitted and are readable.
X
Check the crane’s pivot fasteners
X
Lubricate the crane according to the lubrication chart
X
Check the tightening torque of the slewing motor mounting
X
Washing and visual inspection of load-bearing parts on the crane with regard to deformation
X
3
Check of static and dynamic bearing seatings
X
3
Checking the inner telescopic boom position
X
Check for wear to telescopic booms' slide blocks
X
Check the adjustment of the fleyer chains
X
Check the hose tension inside the telescopic boom
X
Check the tightening torque of the slewing motor mounting
X
Check of static and dynamic bearing seatings
X
Check the joint between the rotator and grapple
X
Checking the function of the hydraulic system.
3 X
3
Replace the high pressure filter
X
1
Replace the return oil filter
X
1
Check, where applicable, and possibly calibrate the cylinders' lowering brake valves / refilling valves
X
Check the fleyer chains for wear
X
Change the oil in the slewing motor
X
2
Check the pillar
X
3
Change the hydraulic oil
X
4
1 The measure is carried out for the first time after 25 hours of operation, then at intervals according to the chart. NOTE! The vehicle manufacturer may recommend other periods for replacement intervals. In this case follow their recommendations. 2 The measure is carried out for the first time after 250 hours of operation, then at intervals according to the chart. 3 Checks and measures are to be carried out by qualified personnel. Qualified personnel are those approved by Cranab or Cranab's dealers. 4 To be carried out once a year even if the number of operating hours is not reached. If the crane has been exposed to damage caused by, e.g. the environment or by an accident it should be taken out of service until an inspection has been made. 33
