SECTION 5
TROUBLESHOOTING
p. 5-2
05148382
5.1.4 No Control Power (24vdc)
Circuit Breaker Tripped Check input circuit breaker of power supply. Check
output circuit breaker (24vdc) of power supply.
Power Supply Fault Check power supply input and output voltages.
E-stop Button Depressed Pull out E-stop button. Check all remote E-stop
pushbuttons
Control Power On Button Check for voltage through switch when button is
pushed.
MCR Relay Not Energized Check to see if coil is pulling in on the master control
relay (MCR)
MCR Contact Set Failure Check to see if contact sets on MCR are changing state
when MCR is energized.
5.1.5 Red Light, Message On Operator’s Console
Left Overstroke Check left HP seal
Check right discharge check valve
Check left inlet check valve
Right Overstroke Check right HP seal
Check left discharge check valve
Check right inlet check valve
T/W Overstroke Check plumbing for leaks
Check HP orifice
Check HP dump valve
Booster Pump Pressure Check booster adjustment
Check booster condition
Inlet Water Pressure Check water supply
Check water filter
Oil Temp Verify hydraulic oil tank temperature is above 62
0
C
(144
0
F). Check output pressure of oil recirculation
pump. Check cooling water flow to heat exchanger.
Adjust water modulating valve.
Oil Level Check hydraulic oil level on the reservoir sight glass.
Check for and correct hydraulic oil leak, add oil to
tank. If reservoir is full, check oil level switch.
Booster Pump Hot Check if booster pump temperature is above 53
0
C
(128
0
F).
Check cutting water flow to/from booster pump.
Check water bypass orifice. Check excessive time in
deadheaded condition. Check booster pump
temperature switch.
To Next Page
Loading...
Need help?
General
