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8.7 Check hydraulic components for
leakages
Check lift only in unloaded condition.
i
1. Carry out visual check of rod seals and scraper
rings ( chapter 9.1) at stages 1 and 2 during
lifting and lowering.
2. Switch off lift with main switch and secure with
padlock.
3. Open maintenance door.
4. Open protective cover.
5. Check all hydraulic components for leakage.
6. Replace and tighten protective cover.
7. Close maintenance door.
8. Remove padlock, switch on lift.
8.8 Tighten mounting screws of cross
members and shafts
1. Check tightening torque with torque spanner
and re-tighten, if necessary:
● Bolts on cross member: M20 with 560Nm
● Bolts on shafts: M16 with 195Nm
117127 ● 07/2011
Tightening torque for bolts
For set screws, friction factor = 0,125
Dimensions
8.8
M 4
2.8
M 5
5.5
M 6
9.6
M 8
23
M 10
46
M 12
79
M 14
125
M 16
195
M 18
280
M 20
395
M 22
540
M 24
680
M 26
1000
M 30
1350
20
Ma= 560Nm
Ma= 395Nm
Ma= 195Nm
Lubrication
Check bolts
8. Maintenance
Tightening torque (Nm)
Strength category
10.9
12.9
4.1
4.8
8.1
9.5
14
16
34
40
67
79
115
135
185
220
290
340
400
470
560
660
760
890
970
1150
1450
1700
1950
2300
21
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