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5. Installation
IMPORTANT!
Improper installation can cause serious damage to the hammer and to the carrier. Do not install
the hammer if you are unsure. Contact your PRODEM dealer for more information.
5.1. Carrier requirements
The PRODEM hammer can be installed on any carrier that meets necessary mechanical and hydraulic
installation requirements. Refer to Section “4. Technical specifications” to determine the carrier specification
required.
Check following points when installing the hammer:
Carrier weight:
The hydraulic hammer should only be mounted on a carrier with sufficient load capacity. In case of using
a quick coupler (hitch), determine the total weight including the quick coupler.
Mounting dimension:
To fit the hammer on the carrier, proper mounting adapter must be used. This mounting adapter varies
according to carrier model and should be ordered separately with follows:
Excavator model and year built
Arm(stick) type
PRODEM’s standard mounting adapters are designed to fit most carrier, and parts for fitting, such as
spacers and pins can also be provided.
Hydraulic line:
Check the nominal bore size of the hammer piping lines on the carrier. Both supply and return lines must
have sufficiently large inner diameters. Small line size causes backpressure increase, overheating of oil
or irregular blows.
Hydraulic pressure:
The hydraulic pressure and oil flow of the carrier’s hammer piping should be adequate for operating the
hammer.
The maximum hydraulic pressure of the carrier must be higher than the recommended relief pressure
setting for the hammer. If not, the impact rate of the hammer becomes slow or the hammer does not start
blowing.
Oil flow:
Oil flow, which controls impact rate of hammer, is the most important factor in the hydraulic parameters to
operate hammer with a good performance, and should not only be too low but also be too high.
Insufficient oil flow cause low impact rates, and on the contrary excessive oil flow causes an increase in
the operating pressure and overheating of the oil. If the output of the pump is more than the maximum
acceptable flow of the hammer, a flow control valve is needed.
Oil cooler:
Too low or too high oil temperature reduces the working performance of a hammer. The temperature of
the hydraulic oil shall never exceed 90°C (194°F), maximum allowed limit, which may cause damage to
the hammer as well as the carrier. If the carrier’s oil cooler is too small, either the original cooler should be
replaced with a larger one or an auxiliary cooler must be installed.
For sufficient cooling of oil, return oil from the hammer must run through oil cooler to oil tank.
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