Duro Dyne 14000, Owner'S Manual

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D W E L L   C Y L I N D E R   P R O B L E M S

SYMPTOM

CORRECT 

FUNCTION 

INDICATOR

POSSIBLE

PROBLEM

ACTION

Dwell  cylinder  does     

not 

retract and 

weld stays on.

 Initiate, Weld 

timer, Feed 

reed switch, 

Dwell solenoid 

and Weld signal 

indicators 

are all on 

Constantly.

All lights flash in 

sequence

Weld timer.

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

cylinder retracts and weld turns off replace Weld timer.

Dwell cylinder does 

not retract and 

weld stays on.

 Initiate, Dwell 

solenoid and 

Weld signal 

indicators 

are all on 

constantly.

All lights flash in 

sequence

Short cycle 

relay.

Test for voltage (24VAC+/-) at terminals #17 and #19. If the voltage is 

present return to the step up above. If the voltage is not present, 

now check the voltage (24VAC+/-) at the terminals #9 to #24, #18 

to #22 and #17 to #22. If the voltage is present all the time on these 

terminals replace the Short cycle relay.

Dwell cylinder does

    not retract.

Dwell solenoid 

and Dwell delay 

indicators are 

on constantly.

Dwell solenoid 

indicator goes 

on and off with 

every cycle. 

Stays on 150ms 

longer than feed 

reed indicator.

Dwell Delay 

timer.

Remove the push-on connector from terminal #4 of the Dwell Delay timer. 

If Dwell cylinder retracts replace the Dwell Delay timer.

Dwell cylinder does 

not retract.

 All indicators are 

functioning 

correctly

All lights flash in 

sequence

(A) Dwell 

solenoid.

(A) Turn the power off. (If the Dwell cylinder shaft retracts recheck symp-

tom).  Now try and lift the cylinder shaft up. If the cylinder shaft cannot 

be lifted replace the Dwell solenoid.

(B) Dwell 

cylinder.

(B) If the cylinder shaft can be lifted easily check the Dwell cylinder and 

air lines for air leaks. Turn the air off and then move the cylinder shaft 

up and down. If the cylinder shaft moves up and down without any air 

resistance the seals in the cylinder are most likely bad. Replace the 

Dwell cylinder. If a slight air resistance is present on the up and down 

motion replace the Dwell solenoid.

Sluggish movement 

of the Welding tip.

All indicators are 

functioning 

correctly

All lights flash in 

sequence

(A) Main air 

regulator.

A) Adjust main air regulator (80psi).     

(B) Air lines 

and 

Adjustable 

mufflers.

(B) Check air lines for leaks or water in the air lines. If there is water in 

the air lines, disconnect and blow out air lines. Remove and clean out 

adjustable mufflers. Reconnect air lines and adjustable mufflers.

(C) Dwell 

cylinder.

(C) Turn the power and air off. Check the Dwell Cylinder shaft for binding by 

moving shaft in and out of the cylinder. A slight air resistance should be 

present when the shaft is being moved in and out of the Cylinder.

(D) Dwell 

solenoid

(D) If the above procedures check out and the Dwell cylinder still has 

sluggish movement the problem maybe the Dwell solenoid. Remove the 

air line from air inlet of the solenoid and spray a light oil in the solenoid. 

Reconnect air line and cycle machine. If Dwell cylinder still has sluggish 

movement replace the Dwell solenoid.