User's Manual

Troubleshooting
312753E 21
Troubleshooting
Any individual working with the equipment must be
knowledgeable in the necessary safety procedures.
Unless otherwise noted, all electrical troubleshooting
must be done with the incoming power switched off
and locked out at the source.
Symptom Probable Cause(s) Corrective Actions Reference
Chemical Crossover Seal failure on Material
Plunger
Send in MixHead for repair
Fracture of Material
Plunger
Send in MixHead for repair
Cleanout Plunger did not
retract during pour
Send in MixHead for repair
Improper customer adjust-
ment on stroke of Cleanout
Plunger
Send in MixHead for repair
Hydraulic leak out of Pour
Nozzle
Galled Cleanout Plunger Send in MixHead for repair
Worn Step Seal Send in MixHead for repair
Chemical leak out of Pour
Nozzle
Worn Seal on Material
Plunger
Send in MixHead for repair
Fractured Tip on Material
Plunger
Send in MixHead for repair
Cleanout Proximity Switch
not working
Damaged Switch Remove and test Switch
Replace as needed
See page 12
Damaged Cord Set Remove and test Cord Set
Replace as needed
See page 12
Material Proximity Switch
not working
Damaged Switch Remove and test Switch
Replace as needed
See page 14
Improper clearance
between Switch and Mate-
rial Plunger
Reset clearance using sen-
sor gauge
See page 14
Cleanout Plunger sticks in
bore
Poor lubrication mainte-
nance of Cleanout Plunger
Lubricate Cleanout
Plunger on a daily basis
See page 20
Build-up of foam in Pour
Nozzle
Remove and clean Pour
Nozzle
See page 20
Galled Cleanout Plunger Send in MixHead for repair
Foam is curing on Clea-
nout Plunger before
scraper seal can remove it
Try Plunger Retract Rou-
tine
Contact Graco