Curtiss-Wright | FTX Series Rev. C PN71855 5/26/17
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Grease Maintenance Procedure:
The actuator will need periodic re-greasing based upon final use. The
maintenance schedule will depend upon load, speed and duty cycle.
High speed or load along with high duty cycle will need maintenance
more often. The screw should be cycled its entire stroke periodically to
redistribute grease, especially in short stroke applications.
To re-grease the roller screw, remove the grease access plug and
move the actuator out from the rear stop 25mm. The grease zerk will
now be accessible. Follow the chart below for the correct amount of
grease to use.
Cycle the unit after several cc’s of grease to distribute.
Figure 22: Grease Port Location
Apply grease into zerk through port in case,
cycle actuator to distribute grease.
Actuator
Size
Initial Grease Fill
(cc)
Additional cc Grease
per 25mm Stroke
FTX095
5.25
0.26
FTX125
7.88
1.00
FTX215
22.00
2.00
Routine maintenance only requires
additional grease
for the roller
screw. See table above for amount of grease per 25mm of stroke. For
example, if the actuator is 300 mm stroke and the additional cc per
25mm stroke is 3 cc, total amount of grease is 36 cc when routine
maintenance is performed.
