DR Power Hydraulic 20-Ton - Manual (Page 25)

DR  20-Ton WOOD SPLITTER Safety & Operating Instructions 21
Figure 20
Operating the Wood Splitter
1. To activate the control valve – push the handle forward and hold.
Note: The hydraulic control is a single handle
valve (Figure 20). The Push Block travels
forward only while valve handle is held in
the forward position. The cylinder
automatically completes return stroke
when valve handle is pushed back to the
locked (detent) position and released.
2. Put one hand on top of log, in the middle, to
keep it steady until the log is held firmly
between the Push Block and the wedge – then
remove your hand from the log.
3. Keep holding the valve handle forward until
the split pieces of the log fall away or Push
Block reaches full extension, one or two inches
from the wedge.
Note: The DR 20-Ton WOOD SPLITTER uses a two-stage hydraulic pump that
normally moves the Push Block at high speed with low force and will shift
automatically to low speed and high force when the wood splitter encounters
more resistance. This shift in speed may occur two or three times while
splitting some logs. If the two-stage hydraulic pump stays in one stage all the
time, call 1(800) DR-OWNER (376-9637) for assistance.
4. Before starting the return stroke, let the hydraulic system recover by moving the
valve handle to the neutral position (straight up) for a moment.
5. Make sure nothing will interfere with the Push Block while it retracts.
6. Press the valve handle backward into the locked (detent) position and let go. The
Push Block will return by itself.
7. The valve handle will stay in the locked position until the Push Block is fully
retracted.
Note: To stop the Push Block or reverse direction:
During the forward stroke, release the control valve handle.
During the return stroke, pull the control valve handle forward to release it
from the locked (detent) position.
Operate the hydraulic control valve smoothly. Allow a short pause when
reversing directions, then press lever firmly in direction you need to go.
Rapidly or forcefully moving the control valve lever in either direction will
cause the system to wear prematurely.
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