Service and Maintenance

Hot Melt Equipment Services

When it comes to maintaining or repairing adhesive application equipment, ADQ Inc. has experts in the field with over 30 Years of experience with both new installation and equipment repairs.

We work closely with you the customer, to determine your needs and come up with the best solution for your company. We also can provide “equipment audits” to determine how effective your adhesive application delivery system is working for you. ADQ Inc. provides quality service and repair for Nordson, Dynatec and Slautterback product lines. We also provide service for other manufacturers specializing in adhesive technology including hot melt and water-based adhesive applications.

We offer immediate assistance for your repair needs as well as customized maintenance, rebuilds and loaner units to ensure your application equipment runs smoothly and efficiently year-round. Call us at (800) 237 4583.

Services Provided
  • ADQ Service Plus Program
  • Line Audits to provide idea’s Efficiency
  • Rebuilds Units and Exchange Program
  • Maintenance Assistance
  • Bench Testing and Repairs of Guns and Hoses Both Manual and Automatic
  • PM Program to Assist When Maintenance is Not Always Available
  • Repair of Slautterback Timers and T500 and T1000 Controllers
  • Loaner Units to Keep the Customer in Production



ADQ Service Plus Program


The ADQ Service Plus program is a preventative maintenance program that has been developed to help our customers properly maintain their hot melt application equipment.

Some of the major benefits of this plan are:

  • Increasing the overall life of your hot melt equipment.
  • Reducing down-time.
  • Reducing the cost of replacement parts and repairs.
  • Increasing the overall efficiency of your packaging and/or assembly processes. 

The ADQ Service Plus program is exclusively for customers that purchase an average of at least 1,500 lbs. of adhesive per month and replacement parts  directly from ADQ, Inc. Although it is not being implemented as a contract plan, it is understood that the Bi-yearly equipment services are to be performed to each piece of hot melt equipment, as long as the hot melt adhesive products being used in the system(s) is purchased from ADQ  Inc. Hot melt equipment services will always be scheduled during normal business hours, Monday through Friday, unless otherwise stated in program details. The service schedule will start immediately with the first purchase of adhesive and on six month intervals afterward.

With each service the following task will be performed:

  • Removal and cleaning of tank inlet screen.
  • Inspection and clean out of electrical control cabinet.
  • Inspection and lubrication of air motor or gear pump system.
  • Inspection and clean out of air control filter / regulators.
  • Complete low-temp flush of each hose and gun body.
  • Replacement of tank high-pressure filter and o-ring.
  • Replacement of all gun filters.
  • Inspection and cleaning of all nozzles.
  • Complete report on system condition, additional recommendations, and placement of dated service tag on unit.




NOTE: Service includes all labor, travel and other expenses, but does not include parts, such as replacement filter screens, nozzles, etc…Parts can be supplied by customer or purchased from ADQ Inc. during service.





Rebuild and Repairs


We offer troubleshooting and repair of all Nordson®, Slautterback®, ITW® and other dispensing systems and controls.

Our Factory trained Nordson® Technical Service Department will quickly try to help identify the problem and get your production back on line.  We specialize in the Repairs and Refurbishment of all Nordson® Units including ProBlue®, DuraBlue®, 3000 Series®, Slautterback® and ITW® Applicators.

We will work with the customer to minimize downtime by offering repairs to be performed at the customer’s plant.  We will also offer the customer the opportunity to send their parts and equipment to or Factory Trained Lab in Whitestown IN to be evaluated for Repairs.  We will complete the evaluation and offer a timely quotation for repairs.

 As a previously authorized Nordson® Sales and Service Center who better trust than someone with the experience we bring to the table.


Slautterback® & Nordson ® are a registered trademark of the Nordson ® Corporation

ITW/Dynatec ® & ITW/Challenger ® are a registered trademark of the Illinois Tool Works Corporation



ADQ INC. offers servicing, and parts for all lines of hot melt equipment including Slautterback®,  Nordson®, and ITW®.   Many of our customers have taken advantage of our "(8) Point Service Program". This program is aimed at preventative maintenance, identifying any potential problems before they cause costly down time, confusion and lost income.

We are one of the only "Full Service" facilities to be found. We are centrally located in Central Indiana with Service support throughout Indiana, Kentucky, Michigan and Ohio. 

With over 40 years’ experience in the field we have a proven track record for quality and service at competitive prices. We realize that today's competitive marketplace you are faced with many choices and just want to let you know that we are here to help you in any way necessary to help your company succeed.

We would appreciate a chance to speak with you in person about the potential advantages of doing business with us. We hope to have a chance to develop your trust and the opportunity to help you and your company. 

Slautterback® & Nordson ® are a registered trademark of the Nordson ® CorporationITW/Dynatec ® & ITW/Challenger ® are a registered trademark of the Illinois Tool Works Corporation



 This guide assumes that the proper adhesive is in use and calls for equipment adjustments to cure symptoms arising from equipment wear or mal-adjustment or from incorrect operating procedures.  Adjustments should be made with care so that adhesive performance is not adversely affected. 

      OBSERVATION                                   POSSIBLE CAUSE                                                             SUGGESTED SOLUTION 


1)     Temperature of hot melt too high.

2)     Excessive exposure to air.

1)     Reduce temperature of melt tank.

2)     Keep pot covered at all times.


1)     Temperature of hot melt too high.

2)     Incompatible adhesives.

1)     Reduce temperature.

2)     Flush system and refill.


1)     Temperature of hot melt too high.

2)     Overheating reservoir walls.

3)     Oxidation of adhesive.

1)     Reduce to recommended temperature.

2)     Keep reservoir full of adhesive.

3)     Keep reservoir covered.


1)     Plugged nozzle.

2)     Blocked filter.

3)     Temperature or pressure too low

1)     Flush system thoroughly; replace nozzle.

2)     Replace with clean filter.

3)     Adjust one or both.


1)     Nozzle placed too far from substrate.

2)     Temperature of hot melt too low.

3)     Hot melt has exceeded pot life.

4)     Poor machine timing or alignment.

5)     Pressure low.

1)     Adjust nozzle closer.

2)     Increase temperature

3)     Flush system and refill with fresh hot melt.

4)     Adjust timing or alignment.

5)     Increase pressure.


1)     Moisture in board is evaporating.

1)     Dry stock or lower application temperature.


1)     Cavitation of pump.

2)     Air Leaking

3)     Moisture in glue or tank

1)     Increase supply of molten hot melt

(use premelter or increase wattage).

2)     Replace seals and/or pump.


1)     Temperature of hot melt too high.

2)     Excessive air pressure.

3)     Incorrect nozzle position.

1)     Lower temperature.

2)     Lower air pressure.

3)     Change angle of nozzle.


1)     Temperature too low.

2)     Bead too small.

3)     Difficult substrate.

1)     Increase temperature.

2)     Increase pressure or nozzle size.

3)     Change adhesive


1)     Too little adhesive.

2)     Temperature of hot melt too low.

1)     Increase pressure or nozzle size.

2)     Increase temperature.


1)     Temperature of hot melt too high.

2)     Insufficient compression.

3)     Too much adhesive.

4)     Substrate shifting during compression.

1)     Decrease temperature.

2)     Increase compression time.

3)     Decrease application rate.

4)     Correct mechanics.




 Assuming that the hot melt adhesive used is within specification and that it has been tested and used successfully, there are several areas where faults occur:  packaging stock, application of adhesive, and compression of adhesive.  Below are points to consider about each area which could help prevent a problem from occurring.


  • Has the packaging stock been changed? i.e. Polyethylene board, grease resistant or recycled board?  Has the packaging stock supplier been changed?  Different packaging stock suppliers have different board suppliers.
  • Are the dimensions of the packaging stock correct?  If the packaging is either too big or too small, it cannot be compressed properly.
  • Has the packaging been scored properly?  Bad scoring results in increased spring in the flaps.
  • Has a blanked out area been left for the adhesive, and is it correctly positioned?  Has the packaging stock an all over varnish?  Certain varnishes are extremely difficult to bond, and require special hot melts.
  • Is the clay coating adequately bonded to the board?  Poor Clay coating will result in a very weak bond.
  • Is the packaging stock stored in dry cool conditions?  Hot melt will not bond very cold wet board stock.


  • Is the machine running at the correct speed?  Unless the speed of the application is constant, any variation in the speed of the machine will alter the length of open time. 

  • Are the temperatures of the adhesive applicators correct?  Any variation of the temperature will alter the open time of the adhesive. 

  • Is the adhesive being applied in the correct position?  Is the correct amount of adhesive being applied?  Again, any variation to the correct quantity of the adhesive will vary the open time of the adhesive. 

  • Are the tanks being refilled regularly?  If the tanks are allowed to run down before filling with adhesive, a temperature drop will occur which will shorten the open time of the hot melt. 

  • Has the atmospheric condition of the plant changed? Heat/Humidity.


  • Is the compression positioned accurately to compress the adhesive bead? If the adhesive bead is not compressed, the flap will pop open on leaving the compression. 

  • Is the compression of the correct strength? It should not be too loose so that the adhesive is not compressed, or too great as to crush the package. 

  • Is the package at 90° to the compression?  If the package is out of square to the compression, only two diagonal corners will have adequate compression.
  • Is the compression absolutely straight and not tapering? 

  • Is the open time to compression appropriate for the adhesive choice and/or temperature settings?