AST PCH GMP-025 Series - Troubleshooting Guide

Material not curing
#60065-02: Page #9
TROUBLESHOOTING GUIDE
Check Electrical Supply Verify that requirements are met (115/120v, 100’
extension
)
Unit Will Not Run
Check motor controller fuses Re
p
lace
Re
p
laceMotor / Gear box failure
Re
p
lace if unit runs when b
yp
assedSwitch in dis
p
ense assembl
y
handle
(ALWAYS remove power
when servicin
g)
Unit runs but no flow / low
flow of materials
Im
p
ro
p
er material su
pp
l
y
to
p
um
p
s Clear obstruction in tank bottom
Uno
p
ened or blocked air vent holes
Ti
g
hten / re
p
lace drive chain
Ti
g
hten / seal all material fittin
g
s
Desiccant caniste
r
Check chain drive
Air in material su
pp
l
y
Ratio check NOT okay
*Blockage of hoses
*Blockage in dispense assembly
*Blockage in pump
Clear / replace
Clear / replace
Replace
Rebuild
Plu
gg
ed hoses or dis
p
ense manifold
Worn Pum
p
s
Clear or re
p
lace
Verif
y
that material bein
g
used is non-abrasive
Too much flow Motor s
p
eed control Reduce settin
g
Check motor control s
p
eed settin
g
Ad
j
ust
p
er controller manual
Irregular flow Check valves stickin
g
/ blocked Disassemble & Clean
Remove tank & inlet; clea
r
Clear / re
p
lace
Re
p
lace
Blocka
g
e at
p
um
p
inlet
Blocka
g
e in hoses
Blocka
g
e in static mixer nozzle
Material off ratio
Timin
g
s
p
rockets wron
g
size
A or B
p
um
p
seals leakin
g
A or B check valves sticking (in dispense
assembl
y)
Static mixer worn or
p
lu
gg
ed
Static mixer does not have enough
elements for
p
ro
p
er mix
Lead in one material coming out of
dis
p
ense manifold
;
Air in material
Foreign object or cured material in pump or
p
um
p
inlet
1. Check material by hand: mix a sample of
A&B in the proper ratio
2
Doasystemratiocheck
Correct / re
p
lace
Rebuild Pum
p
Disassemble, clean, & rebuild; use new o-ring
Re
p
lace
Increase mixer size
Follow air bleed procedure
Remove tank & inlet, then clear or rebuild pump
Possible Causes/Areas to CheckProblem Remed
y