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Hydraulic Angle System Operating Instructions
If your Grouser blade was purchased with the Hydraulic Angle Option, you will have the ability to
angle the blade 30 degrees left or right. To achieve these angles, the two cylinders are designed to
operate independently of each other through an electric diverter valve. To angle the blade to the left,
actuate the tractor hydraulic control lever in the cab with the diveter valve un-powered. To angle the
blade to the right, apply power to the diverter valve and then actuate the tractor hydraulic control lever.
(Continued on next page)
2-Lever Angle System Operating Instructions
If your Grouser blade was purchased with the 2-Lever Hydraulic Angle Option, you will have the
ability to angle the blade 30 degrees left or right. To achieve these angles, the two cylinders are
designed to operate independently of each other with the use of 2 tractor hydraulic control levers and
a safety relief valve. To angle the blade to the left or right, actuate the tractor hydraulic control lever
corresponding to the left or right cylinder.
The safety relief valve allows the cylinder to retract if its internal pressure becomes excessive. With
this safety feature in place, when either cylinder reaches the end of its stroke, the safety relief valve
will reroute pressure to the opposite cylinder causing it to extend. If this occurs, refer to the Relief
Valve Instructions below for possible adjustments. Only one cylinder should be extended when angled
dozing.
Relief Valve Instructions
Set the safety relief valve at a higher pressure than tractor:
To increase the pressure of the
relief valve, install a 0-5,000 psi pressure gauge into the base end of right angle cylinder (see page
26). Loosen the jam nut on the safety valve and tighten the Allen screw 1/2 turn. Next, extend the
right side cylinder out until the safety valve activates, while the safety valve is in function, record the
pressure reading on the gauge. Continue to tighten the Allen screw in 1/2 turn increments and record
the pressure until a high enough relief setting is obtained.
Do not exceed the 3,000-psi operating
pressure of the cylinders
. Tighten the jam nut and remove the gauge. Follow the same steps for
the left side cylinder.
Automatic lever release:
In certain newer model tractors, the hydraulic control lever will automatically
release and instantly stop oil flow once the end of the stroke is reached.
Hydraulic Instructions
Prior to operating the blade, bleed all air out of the hydraulic system. Start with the furthest location
away from the remote until all air is out.
