ZIMM Screw Jack
7 Operation
and maintenance
2015-01
Version 1.2
25
Fig. 18:
Safety trap nut SIFA: Dimension "A" for comparison when
checking wear
4. Visually check the coupling stars.
5. Allow the machine to run, checking for the following:
– Running without jerking and vibration
– No excessive noise
– Constant current consumption
– Temperature rise within the -permissible range
7.2
Lubrication
Good lubrication and use of the correct lubricants are critical for the
correct operation and working life of the screw jack.
Each screw jack application has different requirements, therefore the
values specified in the following section are only recommendations.
NOTE
ZIMM standard greases are not hazardous substances.
Contact ZIMM for the safety data sheets.
7.2.1
Lubricating screw jacks
The Z and GSZ series ZIMM Screw Jack are sealed and are filled with
high-quality synthetic low-viscosity grease; from size 250 kN they are
filled with synthetic oil.
Under normal operating conditions the gearbox is lubricated for life.
7.2.2
Lubricating bevel gear drives
Bevel gear drives are filled with synthetic oil and under normal operating
conditions lubricated for life.
