Servomech S.p.A.
04.01-02-03-04-05.E - Rev. 01 DD (M/Y) 10/19
23
9.2.1
Linear drive lubrication
WARNING! THE PLANT MUST BE STOPPED BEFORE BEGINNING ANY MAINTENANCE OPERATION.
Before to start relubrication, put the actuator in extended position (La – see Fig. 6.10)
Relube the linear actuator using proper grease nipples, as shown on Fig. 9.2.
Grease nipple type: DIN71412 M6
Figure 9.2 – Linear drive relubrication for UAL/UBA 3-4-5
Apply the grease quantity indicated in Tab 9.1 with several partial quantities.
Travel over the entire stroke between one lubricating operation and the next.
When lubricating the linear drive, the actuator must always be in EXTENDED (La) POSITION. Do not
lubricate the linear screw drive in retracted (Lc) or intermediate positions!
In case of stroke length
≥
500 mm, 2 grease nipples for the linear drive lubrication are placed on
actuator. Equally split the total lubricant quantity (see table 9.1) between the 2 grease nipples.
ONLY FOR UAL/UBA 5 ACTUATORS: do not confuse the linear drive grease nipple with the push rod
guide grease nipple (see Section 9.2.2).
At the end of lubricating procedure, extend and retract the push rod over its entire stroke for 3 full
cycles.
If necessary, remove excess of lubricant from push rod.
Linear drive grease nipple
