Duro Dyne 14000, Owner'S Manual

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P I N   F E E D   P R O B L E M S

SYMPTOM

CORRECT 

FUNCTION 

INDICATOR

POSSIBLE

PROBLEM

ACTION

  First pulse 

indicator is not 

functioning.

First pulse indicator 

turns on with 

the first machine 

cycle. Stays on 

until main power 

is turned off.

First pulse 

reed 

switch.

The First pulse reed switch sends power to the coil of the first pulse relay. 

To check the reed switch, remove the wire that goes to terminal#4 on the 

Dwell Delay Timer and then jump terminals #7 to #24 or #33 to #34.

      With this jumper in place cycle the machine. If the machine feeds check 

the reed switch position (First pulse reed switch should be mounted 

to the middle off the dwell cylinder). If reed switch position is correct 

replace First pulse reed switch.

First pulse 

indicator is 

functioning.

Dwell reed 

switch input 

indicator is not 

functioning

Dwell reed switch 

input indicator 

turns on with 

the first machine 

cycle. Stays on 

until main power 

is turned off.

(A) First pulse 

relay. (Coil)

(A) The first pulse relay (K2 on the DRP panel) should engage on the first 

machine cycle and should stays engage until power is turned off. To 

check the first pulse relay jump terminals #7 to #24 or #33 to #34. 

With this jumper in place and the power on check the voltage (24VAC+/-) 

on the DRP panel at TB10 terminals #1 and #2. If voltage is present 

and the relay is engaged (Indicator on relay is on) proceed to step (B). 

If the voltage is present and the relay is not engaged (No indicator on 

the relay) replace the First pulse relay.

First pulse 

indicator is 

functioning. 

Dwell reed 

switch input 

indicator is not 

functioning.

Dwell reed switch 

input indicator 

turns on with 

the first machine 

cycle. Stays on 

until main power 

is turned off.

(B) First pulse 

relay.

(Contacts)

(B) If the relay is engaged (Indicator on the relay is on) check the voltage 

(24VAC+/-) at the terminals #6 and #4. If the voltage is not present 

replace the First pulse relay. If the voltage is present proceed to 

next step. 

First pulse and 

Dwell reed 

switch input 

indicators are 

functioning.

Dwell reed 

switch output 

indicator is not 

functioning.

Dwell reed switch 

output indicator 

turns on with 

the first machine 

cycle. Goes off 

and then back on 

with every cycle.

Dwell reed 

switch

The Dwell reed switch is the upper of the two reed switches located on the 

side of the Dwell cylinder. The Dwell reed switch initiates the feed timer. 

To check the Dwell reed switch first cycle the machine once and then 

check the voltage (24VAC+/-) at terminals #4 and #6. If the voltage is 

not present recheck symptom. If this voltage is present now check the 

voltage (24VAC+/-) at the terminals #4 and #5. Terminals #4 and #5 

should go from 24VAC to 0 and back to 24VAC with every cycle. If this 

is correct the Dwell reed switch is functioning properly. If the voltage 

reading is incorrect check the Dwell reed switch position. To check the 

Dwell reed switch position first loosen the reed switch setscrews. Slide 

the reed switch down and check the voltage at terminal #4 and #5. 

The voltage should read 0. Now slide the reed switch up until terminals 

#4 and #5 have 24VAC and then lock the setscrews. If this procedure 

cannot be accomplice replace the Dwell reed switch.

First pulse, Dwell 

reed switch 

input and output

indicators are 

functioning.

Feed solenoid 

indicator is not 

functioning

F e e d   s o l e n o i d 

indicator goes on 

and then back off 

with every cycle.

Feed timer

The Feed timer initiates the Feed solenoid. Check the voltage (24VAC+/-) 

at the terminal #2 and #5. The voltage at terminal #2 and #5 should 

go from 0 to 24VAC and back to 0 on every cycle. If this voltage reading 

is incorrect replace the Feed timer. If the voltage reading is correct 

proceed to next section. (This voltage is only present for 150ms. Some 

voltmeters may not react fast enough to see this voltage)

All indicators are 

Functioning.

All lights flash in 

sequence.

Feed solenoid, 

Feed 

    cylinder, and 

Pusher with 

Pawl.

The Feed solenoid controls the Feed cylinder. To test the Feed solenoid 

check the voltage (24VAC+/-) at terminals #2 and #5.  Terminals #2 

and #5 should go to 24VAC and back to 0 on every cycle.  If correct 

turn power and air off. Now try to move the Pusher with Pawl in and 

out. The Pusher with Pawl should move easily. If so, replace the Feed 

solenoid.  If not, check for jammed Weld pins in the Feed channel or for 

a damaged Feed cylinder. Also check the Feed speed control for proper 

adjustment. (Located on the air line going to the Feed cylinder)

Feed cylinder does 

not  retract.

 Feed solenoid 

indicator on 

constantly.

F e e d   s o l e n o i d 

indicator goes on 

and then back off 

with every cycle.

Feed timer.

Remove the push-on connector from terminal #4 of the Feed timer. If Feed 

cylinder retracts replace the Feed timer.

  Feed cylinder 

does not 

retract.

All indicators are 

functioning 

correctly

All lights flash in 

sequence

(A) Feed 

cylinder or 

Pusher with  

Pawl.

(A) Turn power off and inspect the Feed cylinder for air leaks. If there is no 

air leaks turn the air off and slide the Pusher with Pawl in and out. The 

Pusher with Pawl should go in and out with just a slight restriction. 

(B) Feed 

solenoid.

(B) To check the Feed solenoid turn the power off. If the cylinder does not 

retract and step (A) above is correct replace Feed solenoid.