Power Jacks Spiracon™ - Manual (Page 3)

POWER JACKS LTD DOCUMENT Spiracon
Tel: +44 (0) 1358 285100 ISSUE No 1.4
email: [email protected] PAGE 3 of 4
http://www.powerjacks.com
_________________________________________________________________________________
When installing the Spiracon roller screw ensure that the alignment of the screw in its
support bearings is within 0.1/1000.
Once the Spiracon roller screw is installed clean the screw thoroughly and lightly coat
with grease applied with a paintbrush. Note that the screw will be supplied either lightly
coated with grease or if supplied un-greased, coated with Shell ENSIS Fluid. The Shell
ENSIS Fluid can be removed with Shell Cleanforce or other hydrocarbon solvent.
If travel limit switches are fitted to the installation, set the travel switches to operate at
the required travel to ensure that the Spiracon roller nut cannot be driven into a solid
stop.
It is recommended that initial setting of proximity switches is carried out by manually
rotating the Spiracon roller screw to position the switch activators correctly.
WARNING - Do not operate the installed Spiracon roller screw until all travel limit
switches are commissioned.
Check that the grease nipple in the Spiracon roller nut is visible when the screw - nut is
installed.
5.0 MAINTENANCE
The Spiracon roller screw should not require maintenance during its normal life other
than;
5.1
The periodic injection of grease into the Spiracon roller nut through the grease access
hole provided, recommended six (6) monthly intervals minimum.
Spiracon Roller Nut & Screw Rocol MTS 1000
Castrol Spheerol BM2
Shell Calithia HDX
Mobil Grease HP222
5.3 Periodic cleaning of the Spiracon roller screw and the re-application of a light coating of
grease applied with a paintbrush.
5.3
Should a repair to a Spiracon roller nut be required then remove the faulty Spiracon
roller nut, and return the unit to Power Jacks for repair.
6.0
WIPERS
There are two different types of wipers fitted to Spiracon nuts, a brush type and a
plastic type. The wiper, fitted to each end of the nut, retains the majority of the grease,
allowing a film of grease to remain on the screw thread, and prevents the ingression of
debris into the nut that may cause damage.