Servomech MA 10, Installation, Operation And Maintenance Manual

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Servomech S.p.A. 01.05.TR.E - Rev. 02 DD (M/Y) 12/19 35
9.1 Travelling screw lubrication (Mod.A)
WARNING! THE PLANT MUST BE STOPPED BEFORE BEGINNING ANY MAINTENANCE OPERATION.

To lubricate the acme screw, put the screw jack in EXTENDED POSITION (La – see Fig. 6.15).

Use grease type indicated in Tab. 8.1 or equivalent.

Apply a uniform grease coat on the working threaded area.

At the end, move the acme screw over its entire stroke for 3 full cycles.

If necessary, remove the excess of lubricant from the acme screw.
9.2 Travelling nut lubrication (Mod.B)
WARNING! THE PLANT MUST BE STOPPED BEFORE BEGINNING ANY MAINTENANCE OPERATION.

Relube the acme screw using proper grease nipple positioned on the acme nut (see Fig. 2.1 or Fig.
2.2).

Use grease type indicated in Tab. 8.1 or equivalent.

Apply the grease in several partial quantities. Travel over the entire stroke between lubricating
procedures.

Apply grease until a uniform grease coat is spreaded on the working threaded area.

At the end, move the acme nut over its entire stroke for 3 full cycles.

If necessary, remove the excess of lubricant from the acme screw.
9.3 Anti-rotation device lubrication (Mod.A)
WARNING! THE PLANT MUST BE STOPPED BEFORE BEGINNING ANY MAINTENANCE OPERATION.

Before to start lubrication, put the screw jack in RETRACTED POSITION (Lc – see Fig. 6.15).

Use grease type indicated in Tab. 8.1 or equivalent.

Relube the anti-rotation device using proper grease nipple, as shown in Fig. 9.3.

Apply the grease quantity indicated in Tab. 9.1 or Tab. 9.2.
IF THERE ARE MORE THAN ONE GREASE NIPPLE, EQUALLY SPLIT THE
TOTAL LUBRICANT QUANTITY (SEE TABLE) BETWEEN THE GREASE
NIPPLES.
For bigger sizes screw jacks, please note that 2 anti-rotation key are
placed on the screw jack.
WHEN LUBRICATING THE ANTI-ROTATION DEVICE, THE SCREW JACK
MUST ALWAYS BE IN RETRACTED (LC) POSITION. DO NOT LUBRICATE THE
ANTI-ROTATION DEVICE IN EXTENDED (LA) OR INTERMEDIATE
POSITIONS!

At the end of lubricating procedure, extend and retract the screw jack
over its entire stroke for 3 full cycles.
Figure 9.3 – Anti-rotation device lubrication