Cub Cadet I-Beam Style - Manual (Page 258)

6-59
6
Control Valve and Hydraulic
Cylinder Troubleshooting
NOTE
This section is to be used after the Gen-eral
Inspection and Pump Troubleshooting sec-
tions have been performed._____
• Scan the Final Pump Pressure Test section
and enter the recorded test result from PSI
“A”_____ and GPM “A”_____
Test Procedures
1. Make certain the needle valve is fully
open._____ See Figure 6-78.
2. Start the log splitter._____
3. Move the control valve handle to the forward
position until the wedge assembly is at the end
of its travel._____ See Figure 6-79.
4. Hold the control valve handle in the forward
position.
5. Record the PSI._____ (This is PSI “B”) See
Figure 6-80.
NOTE
The PSI “B” recorded should be equal to or
GREATER than the PSI “A” recorded earlier in
the Pump Troubleshooting section—Final
Pump Pressure Test.
6. Record the GPM._____ (This is GPM “B”)
7. Enter the recorded test results from GPM
“A”_____ and GPM “B”_____
8. If the recorded GPM “B” is equal to or LESS
than the (GPM “A”) recorded earlier in the
Pump Troubleshooting section—Final Pump
Pressure Test, the hydraulic fluid flow is cor-
rect.
9. If the recorded GPM “B” is GREATER than the
(GPM “A”) recorded earlier in the Pump Trou-
ble-shooting section—Final Pump Pressure
Test, there may be a problem with the control
valve, pressure relief valve, or hydraulic cylin-
der.
10. Enter the recorded test results from PSI
“A”_____ and PSI “B”_____
11. If the (PSI “B”) is equal to or greater than the
recorded (PSI “A”) in the Final Pump Pressure
Test, the hydraulic system is functioning cor-
rectly.
Figure 6-78.
Figure 6-79.
Figure 6-80.
Log Splitters 2.fm Page 59 Wednesday, February 20, 2002 1:35 PM