DR Power Hydraulic 20-Ton - Manual (Page 33)

DR  20-Ton WOOD SPLITTER Safety & Operating Instructions 29
Figure 26 Figure 27
6. Check and adjust the hydraulic fluid to be about 1" from the top of the tank.
7. Start the splitter engine and operate the ram back and forth a couple of times to bleed
any air from the hydraulic system.
8. The pressure gauge should indicate a pressure in the “green” area of the pressure gauge
dial (0-25 psi).
9. Recheck and adjust the hydraulic fluid level per step 6.
Adjusting the Hydraulic Control Valve
Tools Needed:
7/16" wrench
1/8" (9mm) Hex wrench
If the hydraulic push ram will not return all the way back to it’s retracted position, the
locked position (detent) on the right side (Operator’s side) of the control valve may have to
be adjusted.
1. Pull off the black protective cap (Figure 26) on the right side of the control valve and
loosen the jam nut with the 7/16" wrench (Figure 27).
2. Using the Hex wrench, turn the screw on the control valve clockwise, a quarter turn at
a time (Figure 27), until the push ram will return to it’s fully retracted position. Re-
tighten the jam nut and replace the protective cap.
Protective
Cap
Jam Nut Hex Screw