KMT Streamline SL-V 100 Plus, Operation And Maintenance Manual

Page: 151 / 304

Section 10
Troubleshooting
20413005
8-2012/Rev 05
10-4
Table 10-1
SL-V Series Troubleshooting Guide
Malfunction Indication Comments
9. Hydraulic pressure but no
high pressure water
pressure Proximity switch failure From the Maintenance Screen
on the control panel, jog the
intensifier left and right and
verify that the red light comes
on at both proximity switches.
I/O relay failure From the Maintenance Screen
on the control panel, jog the
intensifier left and right and
verify that the green light comes
on at both directional valve
solenoids.
Coil failure on the directional
control valve Check the coils on the
directional valve with a volt
meter to verify if they are good
or bad.
PLC failure If there are inputs from the
proximity switches, but no
outputs, contact the KMT
Customer Service Department
for a logic review and
verification of PLC failure.
10. Erratic fluctuations in the
operating pressure, or
inability to reach or
maintain set pressure The screen in the proportional
pressure valve is blocked with
debris Remove the valve and clean the
screen following the
maintenance procedure in
Section 7, Hydraulic System.
11. No hydraulic oil pressure The high and low limit
compensators on the
hydraulic pump are blocked
with debris and are not
controlling the swashplate Disassemble the compensators,
clean and inspect the
components following the
maintenance procedure in
Section 7, Hydraulic System.
Incorrect motor rotation Check the motor rotation.
12. Pump shaft will not turn The flexible coupling has
failed Replace the flexible coupling.
The hydraulic pump has
seized Replace the hydraulic pump.