Grouser Products Ag 240I, Owner'S Manual & Parts Book

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5
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 21). 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
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CAUTION: Do not bypass the safety relief valve and plumb each cylinder to separate valves on the tractor.
Please contact Grouser Products with any questions by: Phone - 701-282-7710 or 800-747-6182; Fax - 701-282-8131
Top Arm Adjustment
1. Verify that the top arm is installed correctly. See the picture of the decal that is on the angle frame below for reference. If you are
using a Grouser Hitch, use the lower 2 sets of holes for the top link. If you are using a Factory Hitch, use the upper 2 sets of holes for
the top link. Use the color code for the proper pin location.
2. With the blade hooked up, set the blade on the ground. Adjust the top arm until the the center angle pin is vertical and perpendicular
to the ground.
3. Carefully run the blade up and down to make sure that the top link doesn’t collide with anything.
HAHT Hydraulic Angle - Hydraulic Tilt 6-Way
HANT Hydraulic Angle - No Tilt 4-Way
NAHT No Angle - Hydraulic Tilt 4-Way
NANT No Angle - No Tilt 2-Way
Angle / Tilt Function Abbreviation Key