71
10.7.2. Box, universal or turning unit
To check the oil level:
►
Remove the cover of the unit.
►
Proceed as described in the previous chapter for slide-in units.
10.7.3. Recommended hydraulic oils
•
Shell Tellus S2 V 15
Operating temperature: -20 °C to 60 °C
•
Aero Shell Fluid 41
Operating temperature: -54 °C to 90 °C
•
Special “cold” configuration:
Aero Shell Fluid 41 and cryogenic seals against glazing of the sealing
materials
Operating temperature: down to -54 °C
10.8. Lubricating the bearing
►
Using a grease gun, press grease into the tapered grease nipples of all
bearing points of the hydraulic cylinder bearings and the control rod
bearings. Press grease into it until it comes out at the side of the
respective bearing point.
A tail lift with two hydraulic cylinders has eight bearing points. A tail lift with
four hydraulic cylinders has twelve bearing points.
Recommended grease: Shell Gadus.
10.9. Checking bolted connections
►
Take the required tightening torques of the bolted connections from the
attachment report (attachment drawing) and the tables on page 31 and
page 42.
►
Make sure that all bolted connections are secure.
10.10. Checking hoses and cables
►
Check that all hoses are free from damage.
►
Check that all hoses move freely and are laid so that they cannot be
damaged by movements of the tail lift or vehicle.
►
Check all cables for external damage.
►
Check that all cables are adequately secured and laid so that they cannot
be damaged by movements of the tail lift or vehicle.
