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– Check that the tool works satisfactorily in both direc-
tions. Pump it up to maximum pressure, i.e. until the
safety valve cuts in. Check that there are no oil leaks.
– Check the torque of the nut on the centre bolt (Fig. 7). It
should be 120 Nm.
– Lubricate all moving parts.
– Oil the blades and tips.
Service
Replacing the blades (Fig. 8)
To replace the blades, fi rst pump the blades together so
that you can remove the circlips (pos. A). Then remove the
pins (pos. B). Unscrew the nut from the centre bolt (Pos. C)
and remove the washer beneath it. Pull out the centre bolt
(pos. E). Remove the blades.
Before fi tting new blades, lubricate the sliding surfaces
and hole with Molycote G-rapid or a similar grease.
Reassemble in reverse order. NOTE, the nut on the centre
bolt must be tightened to a torque of 120 Nm.
Filling with oil
To ensure reliable operation use a good quality hydraulic
oil, refer to the Technical description section.
Position the tool vertically with the blades pointing down-
wards. Pump the blades apart as far as they will go.
Remove the fi ller plug and the washer beneath it, item A,
Fig. 9.
Fill the oil reservoir with hydraulic oil, refi t the washer and
the fi ller plug. Pump the blades roughly halfway together
then pump them open again. Repeat this at least twice.
When the tool is fully open, pump the blades together until
the gap between the blade tips is around 85 mm (3.5 in).
Remove the fi ller plug and washer, top up the oil reservoir
with hydraulic oil so that all the air is eliminated.
Refi t the washer and fi ller plug. The tool is now ready to
use.
Hydraulic oil that is drained (or leaks out) from the tool and
components and is replaced during servicing or repairs
must be collected and disposed of in accordance with the
relevant environmental laws and regulations.
REHOBOT Hydraulics AB
Skjulstagatan 11 A, 632 29 Eskilstuna, SWEDEN P.O. Box 1107 631 80 Eskilstuna
T. +46 (0)16 - 16 82 00 F. +46 (0)16 - 13 93 16 info@rehobot.se www.rehobot.se
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