of the power source is 172 bar (limited by safety
valve adjustment).
WARNING Operating pressure
If the maximum operating pressure for the hydraulic
machine is exceeded, it can result in material
damage and personal injury.
► Always run the hydraulic machine with the correct
operating pressure. See "Technical data".
Adaptors
1) Choose a suitable adaptor for the post. To
choose the correct adaptor, see the spare parts
list or accessories catalogue.
2) Remove the nuts from the bottom plate.
3) Fix the adaptor to the post driver by the
fasteners.
Optional adaptors
Square adaptor, 54 mm (2.13
in.)
Universal adaptor:
● Square post: maximum
62x62 mm (2.44 x2.44 in.).
● Rectangular post: maximum
90x35 mm (3.54 x 1.38 in.)
● Round post: maximum Ø62
mm (Ø2.44 in.).
Round adaptor, Ø96 mm
(Ø3.78 in.)
Operation
WARNING Involuntary start
Involuntary start of the machine may cause injury.
► Keep your hands away from the start and stop
device until you are ready to start the machine.
► Learn how the machine is switched off in the event
of an emergency.
► Stop the machine immediately in all cases of
power supply interruption.
Start and stop
Connecting the post driver
Ensure that the hydraulic supply meets the
requirements of the post driver, see "Technical data".
♦
Connect the hydraulic hoses. Make sure the hoses
are clean before connecting them. The connectors
are of the 'quick release' type.
♦
The power source must be fitted with a return line
oil filter with a filter rating of 10-25µ.
♦
The back pressure (return line pressure) of the
post driver must be as low as possible and may
not exceed maximum. Back pressure, see
"Technical data", measured at the post driver in
order to avoid functional disturbances.
♦
Oil coolers must be able to stand a pressure of
minimum 10 bar (145 psi) and must be provided
with a by-pass valve opening at a pressure of 2
bar (29 psi) in case of pulsations in the return line.
The following is optional settings when connecting
the post driver:
♦
Oil supply: If the oil supply of the power source
exceeds the flow prescribed, the engine's rpm
must be reduced, until correct oil flow is achieved.
Test equipment can be used, see Spare parts list.
♦
Oil flow divider: If the oil flow cannot be adjusted
by lowering the rpm, an oil flow divider must be
installed. This will secure the post driver the
correct oil flow and lead excess oil back to the
tank (or to the operating valve block).
♦
Pressure relief valve: To protect the post driver
against too high a pressure, the pressure relief
valve of the powerpack must be set in accordance
with the technical data. If that is not possible,
connection can be made by installing a separate
pressure relief valve. In case of doubt, contact
your nearest authorised workshop.
Starting the post driver
NOTICE In cold conditions, warm up the post driver
by light use for a few minutes before start working.
1. Always use suitable adaptor for the post and for
the post driver. Place the adaptor in the front
head of the post driver following the steps in the
"Adaptors" section.
2. Remove the protective caps from the
quick-release couplings.
3. Clean the quick-release couplings if needed and
connect the tail-hoses to the extension hoses of
the power source.
© 2015 Construction Tools EOOD | No. 3392 5036 01f | 2015-03-10
Original instructions
14
LPD T, RVSafety and operating instructions
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