DR Power Hydraulic 5-Ton (Oct 2010 - July 2013) - Manual (Page 15)

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Sharpening the Wedge
Tools needed:

Fine-Toothed Flat File
1. Before each splitting session, check the sharpness of the Wedge. As required, remove any burrs or flat spots on the Wedge
using a fine-toothed flat file.
Make no Adjustments
DO NOT adjust the maximum pressure limiting screw (Figure 16). The pressure limiting screw has been sealed at the factory to
prevent unauthorized adjusting. Resetting the screw will cause the hydraulic pump to fail to output enough splitting pressure or
cause too much pressure, which may result in serious injury, as well as damage to the machine.
maximum pressure
limiting screw
Figure 16
Before performing any repairs or maintenance procedure, unplug the wood splitter power cord from the power source.