Cub Cadet I-Beam Style - Manual (Page 236)

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Open the needle valve to a fully open position.
Start the engine and run it at full throttle.
Hold the valve handle in the fully open position until the ram bottoms out. Hold the control
valve open in this position.
Slowly close the needle valve and take a reading of the pressure and flow. Immediately
open the needle valve to avoid seal damage.
______ PSI Record the readings on the data (work sheet).
(1500 - 3200 range)
______ GPM
(1 - 2.5 range)
If the pressure is below your earlier readings, you will need to try adjusting the pressure
relief valve before condemning the control valve.
To adjust the pressure relief valve, remove the nut on the valve cover.
Using a flat bladed screwdriver, adjust the slotted screw in the bottom of the hole.
CAUTION: This adjustment is very sensitive. Turn the adjustment screw slowly one eighth of
a turn at a time and check the pressure. Turning clockwise increases the pressure.Counter-
clockwise decreases pressure.
Briefly close the needle valve and operate the control valve.
If the correct pressure cannot be obtained by adjusting the pressure relief valve, the control
valve needs to be replaced.
Open the needle valve fully.
If adjusting the pressure relief valve brings the pressure to within specifications, the control
valve is O.K. Continue trouble shooting.
______ PSI Read the maximum PSI and flow rate and record it on the work sheet.
(1500 - 3200 range)
______ GPM
(0 - 1 range)
Compare the PSI reading with the previous reading. If the PSI is the same and the flow is
between 0 and 1 GPM, the cylinder is good.
If the flow gauge shows 2 to 3 GPM or more and the pressure is below your initial reading,
the cylinder is leaking and must be repaired or replaced.
HH file 0091 Seal kits are available. Check with your parts supplier to order the correct seal kit for your
cylinder.
Log Splitters 2.fm Page 38 Wednesday, February 20, 2002 1:35 PM