PROBLEM PROBABLE CAUSE SOLUTION
not respond to its manual
control switch.
15. Head descends when Feed
Rate valve pointer is set to
"0" on the scale and Feed
Force limit gauge is more
than 150 psi.
16. Index retracts but only very
slowly.
IN AUTOMATIC MODE
17. Auto cycle stops.
18. Piece length gradually in
15a. Readjust pointer as in 13c.
16a. As in 14a check and repair or
replace.
17a. Readjust limit switch actua-
tor.
17b. Begin auto cycle over again
from start position on Auto
Cycle Dial. Note last function
motion before the cycle stops
and check related limit switch
function. For example, if the
head comes down and then
the cycle stops, check that
the head down limit switch is
being actuated by prodding it
with a screwdriver. If the
auto cycle resumes, the limit
switch actuating bolt must be
readjusted. Similarly if the
shuttle advances and then
the cycle stops, check that
the shuttle forward limit
switch is being actuated.
15a. Pointer of Feed Rate valve is
stopped by stop bolt but not
fully closing the valve.
16a Cushion limit switch is
stuck or damaged.
17a. If cycle seems to stop be
cause of a particular function
is inactive, switch to manual
and see it that function is still
inactive. If so see previous
section "IN MANUAL
MODE".
17b. If the function is active in
"manual" mode.
17c. If the cycle does not respond
to limit switch prodding.
check for a damaged limit
switch as outlined in 14a.
SOLUTION, above. In this
case wire together the two
switch terminals furthest from
the wiring port.
18a. Length adjustment block not
tight.
18b. Micrometer adjustment is
creeping.
17c. Check for cause of damage
and replace limit switch
as needed.
18a. Tighten the knob.
18b. Very slightly tighten the set
screw which retains the
micrometer in the adjusting
block. This will increase the
stiffness of the micrometer
threads.
3.7
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