Section 8: TROUBLESHOOTING
Page 5
7
OM-ZR-May15
Clamp Will Not Close
Engine is running
Hoses are connected
Clamp switch on CLOSE
Pressure on clamp gauge is
zero
Manually shift clamp solenoid
valve
Clamp pressure is above zero
Go to next page
Clamp pressure builds
Check voltage to close-clamp
solenoid
Voltage to solenoid
Replace clamp solenoid
No voltage to solenoid
Switch from Remote to Local or vice
versa (see Section 5: OPERATION )
Works in Local
Replace pendant
Works in Remote
Replace clamp switch
Clamp pressure is zero
Turn & hold clamp switch on
OPEN
Clamp pressure is zero
Shut down diesel engine
Cycle clamp relief valve (RV2) by
moving adjusting screw in and
out
Reset relief valve to 4800 psi
(see Section 6: MAINTENANCE)
Turn & hold Clamp switch on
OPEN
Clamp pressure builds
but clamp does not close
Go to Point A on next page
Clamp pressure builds
Resume normal operation
Clamp pressure is zero
Repair or replace clamp
Reservoir end
Close solenoid
Engine end