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8.3.4 Hydraulic system
- Check if the changes endangering the safety have been made in the hydraulic system, such as
the hoses are original and in their pressure class.
8.4
MAINTENANCE SCHEDULE
Maintenance
Measure
object
General
1
Check of cylinders and hoses for leakage
Fastenings of shafts and inspection of the fixing
2
screws of the crane
Inspection of the condition of hoses and hose con-
3
nections
Cleaning and inspection of the condition of load-
4
bearing structures
Turning de-
5
Lubrication of the bearings with a clamp
vice
6
Tightening of the fixing screws
7
Checking the oil level
8
Changing the oil
The boom
9
Lubrication of the bearings with a clamp
10 Inspection of the bearings of the boom
Inspection of the fastening of the guide components
11
and shafts of the cylinders
Extensions
12 Lubrication of the bearings with a clamp
13 Applying lubricant to the extension by brushing
14 Inspection of lateral clearings
15 Inspection of the vertical clearings
16 Tightening of the shafts of the bucket of the grabber
Chains
17 Chain lubrication
Inspection of the tightness of the chains and adjust-
18
ing if necessary
19 Chain cleansing
20 Lubrication of joints
Control
equipment
21 Inspection of the fixing screws
22 Tightening of the bolts of the rotator body and flange
Rotator
23 Tightening of the fixing bolts of the grabber
Maintenance of the return filter and the breather car-
The oil tank
24
tridge
22
Changing of the pressure filter
The hydraulic
23 Changing of the return filter
system
24 Changing of the hydraulic oil
Control ca-
25 Lubrication
bles
49
MAINTENANCE
The frequen-
cy of mainte-
Note!
nance/h
10
Daily
10
Daily
50
250
10
1200 Nm
250
First 50 h
10
11.2 l
1000
First 50 h
10
250
Tighten if nec-
250
essary
10
50
Adjust if nec-
50
essary
Adjust with a
250
shim if neces-
sary
250
First 50 h
50
50
Changing if
1000
necessary
50
Tighten if nec-
250
essary
500
First 50 h
500
First 50 h
500
First 50 h
500
First 50 h
1000
First 50 h
At least
1000
2 times a year
In icing condi-
At least once a
tions
month
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