Injection Molding Machine Chapter 5
V3.0
5-3
Item Possible Causes Solution
1.6
No injection
A Temperature condition not ready
B Carriage doesn’t advance to end
point
C I/O W (5A) fuse blown out
D Injection delay time is set too long
E During auto clamp close， carriage
in not reach to end position
F Suck back logic valve stuck and
failure
G Back pressure valve improperly
adjusted or failure
H Directional valve stuck
I Directional valve signal wire
failure
J Injection parameter not set
properly
K Material not melt
L Injection piston loose
M Nozzle blocked or screw tip
assembly damaged
N Check valve or screw worn out
O No material in the barrel
P Carbonized material in barrel.
A Check temperature setting page
B Adjust parameter setting
C Replace fuse
D Adjust parameter setting
E Check clamp close and carriage in operation
F Clean L17，C16，V17
G Clean and repair R6
H Clean direction valveV11，V17， manually
press SPOOL
I Repair signal wire261/0， 267/0
J Adjust injection parameter
K Adjust temperature parameter
L Repair injection cylinder
M Remove nozzle or screw and cleaning
N Replace with new part
O Check hopper， barrel feed throat
P Remove screw for cleaning
1.7
No suck back
A Temperature condition not ready
B Position， pressure， speed， time
are not set properly
C Directional valve stuck
D Directional signal wire failure
E Screw connecting semi-circle ring
loose
A Check temperature setting page
B Adjust parameter setting
C Clean L17， V17， V17-1， manually press
spool
D Repair signal wire 261/0， 267/0
E Repair locking semi-circle ring.
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