ACCU-SYSTEMS DD User manual

The Model DD hand held Dowel Inserter is designed to insert both the glue and dowel in
one operating cycle. This makes the otherwise tedious job of dowel inserting fast and easy.
With the one button glue flush system, clean up is a snap!
ACCU-SYSTEMS
1810 W. 5000 S.
SALT LAKE CITY, UT 84129
801-965-1900 Fax [phone]
800-369-5746
Hand Held
Dowel Inserter
Model DD
ACCU-SYSTEMS

Table Of Contents
1. Features
2. Safety
3. Start Up Procedures
A. Uncrate Machine
B. Connect Power & Air
C. Load Dowels into Machine
D. Set up Pressure Pot
1. Conventional Doweling
2. Pre-glued Doweling
E. Inserting Dowel
4. Operating Procedures
A. Daily Operation of Machine
5. Maintenance & Storage
A. The Air System
B. The Glue / Water System
C. Dowel Feed System
6. Troubleshooting
1. If dowels do not come out of gun when cycled
2. If dowels come back into the singulator after being pushed into the supply hose
3. If there is excessive glue on nozzle and plunger
4. If the gun does not cycle, or cycles erratically when trigger is pushed
5. If the dowels do not feed properly or get jammed as they come out of the bowl
7. Replacement Parts
A. Machine Overview
B. Pneumatic Diagram
C. Electric Diagram
D. Gun
E. Dowel Feed Bowl
F. Singulator Unit
G. Pressure Pot
H. Bowl Driver
8. Requesting Assistance or Service
9. Warranty
10. Franklin Glue Information
A. MSDS
11. Contact Information
12. Warranty

Features
Dowel Reject Slide
Light Weight Gun body
Filter / Regulator /
Lubricator
Vibratory Speed
Control
One Step Purge
Switch

Please keep in mind these simple safety reminders when working on or around this machine
1. Plug into grounded 3 prong outlet
2. Do not remove ground prong.
3. Do not use an adapter.
4. Disconnect power and air before servicing
5. Before opening or working in control panel, always turn main power off.
6. Always wear safety glasses when running this machine
7. Always have hands clear from moving parts when operating machine.
Safety Precautions

The following steps must be taken prior to initial start-up of the machine.
A. Uncrate Machine
1. Uncrate & unwrap machine. Unwrap the gun and place it in it’s holster.
2. Attach the supply hoses PER COLOR & SIZE to the gun. Push hoses tight in fittings to assure a
proper fit
B. Connect power and Air
1. Attach the power (115V single) and air to the machine.
2. The air connection is a 3/8” NPT thread. We recommend you use a 3/8” air
hose connect to the machine.
3. You may use a quick coupler or if you want to leave an air hose connected
to the machine we recommend you put a shut off valve on the inlet so you can
turn the air off when you are done. (AIR NOISE AROUND THE SINGULA-
TOR UNIT IS NORMAL WHEN AIR IS ON. There is no air leaking, it is
a venturi effect causing the noise. The air that blows the dowel to the gun is
pulled into the hose. The air being pulled into the hose makes the sound.)
C. Load dowels into machine
1. Put the dowels into the hopper.
2. DO NOT FILL THE TUBE WITH DOWELS. The machine only shoots one dowel at a time
through the tube to the gun.
3. Never push a dowel into the gun through the nozzle fingers.
4. Turn the bowl speed up so the dowels feed into the singulator. Set the speed so when cycling the
machine the dowels feed fast enough to keep up with the operator.
5. Align the singulator, so dowels feed smoothly.
Start Up Procedures

D. Set up pressure pot
There are different directions for Conventional Doweling & Pre-glued Dowels.
Follow the directions for the procedure you are using.
CONVENTIONAL DOWELING WITH GLUE
RECOMMENDED GLUE:
Franklin Assembly 161 or Tightbond doweling glue L.V. See spec. sheet in the back of this manual.
1. Remove the pressure pot from the back of the machine.
2. Open the pot and you should see a sample of glue, a plastic one gallon container, and two pick up
hoses with filters. The black tube is the glue pick up tube, and the clear tube is the water pick up tube.
The sample glue will not go too far, so make sure you have at least 5 gallons of the recommended on
hand. Always shake or stir the glue before putting it into the container.
3. Place the glue into the plastic one gallon container, place it into the middle of the pressure pot.
4. Pour water around the pot to about half full. Place the top over the pot and make sure the black
hose goes into the glue, and clear tube goes into the water.
5. Tighten the pot lid down in an even fashion. Turn the regulator up to around 30-40 PSI.
6. Go to the front of the machine and take the gun from the holster and aim it into a purge bucket
(something to contain the fluid).

7. Flip the H20-RUN-GLUE switch to the H20 (water) side and you should start to see water
exit the tip of the gun in about 10-15 seconds. Then flip the switch to the glue side and you
should start to see glue exit the tip of the gun in about 10-15 seconds.
8. Once the glue arrives flip the switch in the middle”RUN” position. You are now ready to
shoot.
9. You may need to make a few adjustments as you go along, like increase or decrease the
glue pressure or adjust the glue timer inside the control panel for more or less glue. You will
have to shoot a few dowels to see if this is necessary.
10. After each time you use the machine you will need to flush the glue back out of the line,
to do this hold the gun over the purge bucket, flip the switch to the H20 side and you should
start to see water come out of the gun in 7-10 seconds. Let it run a bit before you flip the
switch back to run.
11. After this you must clean off the nozzle, and any glue to keep it from drying and causing problems.

RECOMMENDED WATER:
DISTILLED OR PURIFIED BOTTLED WATER
1. Remove the pressure pot from the back of the machine.
2.
2.Open the pot and you should see a sample of glue, a plastic one gallon container, and two pick up
hoses with filters. The middle tube ( Black) is NORMALLY the glue pick up tube. The clear tube is
the water pick up tube. When using water for Pre-glued dowels the black tube is now the main water
pick up tube.
3. WE RECOMMEND YOU USE DISTILLED WATER. This will keep the valves from accumu-
lating a build up of minerals that are common in most tap water.
4. Fill either the pot or the plastic container and place it in the main pot.
5. Place both tubes into the water
6. Tighten the pot lid down in an even fashion.
7. Turn the regulator up to around 10-15 PSI.
8. Go to the front of the machine and take the gun from the holster and aim it into a purge container.
PRE-GLUED DOWELING WITH WATER

E. Inserting Dowels
1. Place the gun to the dowel hole and push the trigger button. You will first see a shot of glue
(or water) and then a dowel will follow it into the hole. Keep the nozzle firm against the material
and in line with the hole, it may take a little practice, but before long you will find it quite easy to
do. Do not push hard enough to retract the fingers back into the gun body. Also keep the hoses as
straight as possible from the machine to the gun. This will help the machine to run smoothly.
If a dowel exits the nozzle, but for some reason did not go into a dowel hole, NEVER PUSH THE
DOWEL INTO THE NOZZLE TO RESHOOT IT!! Always pull the dowel out and push the
trigger for a new dowel.
(If you push the dowel back into the nozzle, it will fall on top of the slide block, and will
damage the machine. You will have to take the front handle off to get it out before another
dowel can be shot out of the nozzle.)
2. If you are shooting glue, you must FLUSH THE GLUE FROM THE GUN AS SOON AS POS-
SIBLE. Be sure to flush the system within 20 minutes to insure no glue drying in the tip. To
flush the system, point the gun into the purge bucket and flip the “H20-Run-Glue” switch to H20
until you see a clear stream of water coming out of the gun for a few seconds. Flip the switch
back to the RUN position. Inspect the nozzle and front of gun, removing any build up of glue with
a rag. Return the gun to it’s holster.
3. You may now turn the main power switch off, this will also shut off the bowl feeder. Shut off
the air or disconnect the air line. Your machine is now ready for the next time you use it.

A. Daily operation of machine.
1. Make sure main air regulator reads between 90-100 PSI (main air regulator is on the side
of the machine)
2. Turn the main power switch on (front panel) Make sure the “H2O-
Run-Glue” switch just below the power switch, is in the RUN position.
(H2O = Water)
3. If using glue, purge the system (as talked about on page 2) to refill
the line with glue. If you are using water you never need to purge be-
fore or after you use the machine (purge with water is only necessary if
you run out or after filling pot.)
4. Check dowel feed speed to advance the dowels to the singulator assembly if needed.
YOU ARE NOW READY TO INSERT DOWELS!!
5. After each use of the machine you will need to flush the glue back out of the line. To do
this, hold the gun over the purge bucket, flip the switch to the H20 side and you should start
to see water come out of the gun in 7-10 seconds. Let it run a bit before you flip the switch
back to run.
6. After this you must clean off the nozzle, and any excess glue to keep it from drying and
causing problems the next time you use the machine. Return gun to holster.
Operating Procedures

This machine has been designed with the user in mind. It requires little maintenance and will provide years
of trouble free operation, if maintenance is performed on a regular basis.
A. The Air System
1. Your machine is equipped with an auto drain filter regulator unit. Check it
every month to make sure it is draining properly. Remove any build up of dirt
from the inside of the filter assembly as needed.
2. Check the oilier on a monthly basis, and bring the level to the full line using
a good grade air lubricator oil*.
*DO NOT USE MOTOR OIL, AIR TOOL OIL, OR ANY TYPE OF OIL THAT IS DESIGNED TO
BE USED IN CRANKCASE OR AUTOMOTIVE LUBRICATION. DO NOT USE “MARVEL MYS-
TERY OIL”. USING THE WRONG OIL WILL VOID YOUR WARRANTEE.
3. The oilier is set at the factory but may need to be adjusted in the field. Please take the time to
check and if needed properly set the oilier. It will only have to be done once and will save you a lot
of problems in the future.
a.. If you notice little or no oil being used out of the oilier when you check it monthly you
need to adjust the flow knob.
b. If you notice an excessive amount of oil being used, or notice any oil in the bottom of the
cabinet around the glue pot, you need to tighten the flow screw down.
The flow knob is located on the top of the oilier. You will need a straight screw driver. You
should set the oilier so you see one drop every 30 - 40 cycles of the machine.
Maintaining Your Machine

B. The Glue / Water System
To keep your machine running properly...
YOU MUST USE THE PROPER GLUE
YOU MUST NOT RUN OUT OF GLUE OR WATER.
YOU MUST FLUSH THE GLUE FROM THE MACHINE AFTER EVERY TIME YOU
USE IT.
YOU MUST FLUSH THE ENTIRE SYSTEM WITH HOT WATER ONCE A
MONTH.
1. Use the proper type of glue.
a. Use a good quality glue that is designed for automatic dowel inserters.
We recommend you use Franklin tightbond doweling glue L.V. or Franklin Assembly
161. Do not use standard white or yellow type wood glue.
b. Glue designed for automatic dowel inserters is a low viscosity glue, with the same proper-
ties as standard glue. The proper glue will flow through the machine smoothly and be ab-
sorbed into the dowel and wood quickly after being inserted. If you have a problem getting
glue or have any questions please call us and we will recommend a source where it can be pur-
chased.
2. Have the Glue Timer set properly.
a. There is a timer located on the bottom shelf in the
valve panel. This timer allows you to adjust the
amount of glue that comes out of the tip per cycle.
You may change the amount of glue by turning the dial.
The normal setting for doweling with glue is: the
first line above 0
The normal setting for doweling with water is: at 0
3. Set the air pressure in the pressure pot. If you are using glue, it should be set between 30-50
psi. If you are using water, it should be set between 5-15 psi.
4. We recommend that you check your glue and or water level on a regular basis, depend-
ing on how often and to what extent you use your machine.
a. If you run out of glue while using the machine, air will be put through the system,
and may cause glue to dry in the valves.

b. If you run out of water, then you cannot flush the glue from the system after you use the machine.
4. Flush the glue from the machine after every time you use it.
a. Be sure to flush the system within 20 minutes to insure no glue
drying in the tip. To flush the system, point the gun into the
purge bucket and flip the “H20-Run-Glue” switch to H20 until
you see a clear stream of water coming out of the gun for a few
seconds. Flip the switch back to the RUN position. Inspect the
nozzle and front of gun, removing any build up of glue with a rag.
Return the gun to it’s holster.
IT IS VERY IMPORTANT THAT YOU REMEMBER TO DO THIS
EVERY TIME
5. Once a month flush your system with hot water.
a. If you are using glue, once a month fill the pressure pot with hot water. Flush the system
with the hot water to flush out any build up of glue solids that may be present. This will as-
sure a good flow of glue and prevent glue system failure.

Following these easy procedures can save you from having big problems.
C. Dowel Feed System
1. Use good quality dowels. Buying cheap dowels may save you a few
pennies at first, but, it will cost you a lot more labor in the end.
2. When you pour your dowels into the bowl sift through them and remove
any broken or half dowels that could possibly jam the machine.
3. Keep the bowl clean!!! Do not use the bowl for a “catch all” for glue
bottles, staples, tape measures, and saw dust.
4. Do not have kinks or sharp bends in the hose. Keep delivery hose as
straight as possible.

Figure 6-1
If you cannot find your problem listed below, please call us. We can most likely solve your problem over
the phone. The number to call is 1-800-369-5746.
1. If Dowels do not come out of gun when cycled...
A- Check that the dowel feeder control is turned up far enough?
Turn control up (front panel)
B- IS THERE A SHARP BEND IN THE SUPPLY HOSE TO THE GUN?
Straighten hose to allow dowel easy path to the gun.
C- DOES THE DRIVE PLUNGER HAVE A BUILD-UP OF GLUE ON IT, NOT ALLOWING IT TO
RETURN FULLY?
Take air line off drive cylinder at back of gun, with a thin long screw driver (or comparable object)
push the drive cylinder out until it protrudes into the nozzle where it can be cleaned ( note removal
of nozzle may be necessary to properly clean plunger) clean any glue that is build-up and lightly
oil plunger and make sure it returns fully. LOWERING GLUE PRESSURE WILL ALLEVIATE
THE PROBLEM OF GETTING TO MUCH GLUE ON THE DRIVE CYLINDER.
D- IS THERE A HALF OR BROKEN DOWEL LODGED IN GUN SIDE?
Trouble Shooting Guide
Dowel Reject Slide
If problem still exists after checking the above, open the dowel reject slide on the front of the
gun and remove the dowel in the gun. Close the slide and try again. If this does not work, undo
the dowel supply hose at the back of the gun (large connector). Hold gun vertical and tap the side
of the gun with your hand to loosen any jammed pieces of dowel. Be aware that glue will shoot
with all of the following scenarios. With your hand over the dowel supply hose, also cycle the gun
to help loosen and release the jammed dowel. Before attaching the hose back to the gun, point the
supply hose to the ground and cycle the gun. You should get a dowel shot out the hose when cy-
cled. If you do not then the problem could be in the supply hose. Check hose for a kink that could
stop the dowels from moving smoothly through the hose.
E- IS THERE NOT ENOUGH AIR PRESSURE TO THE MACHINE?
Check for correct amount of air at the machine. (90 - 100 psi)

F- IS THE DOWEL HOSE FULL OF DOWELS?
Only one dowel at a time should be in the hose. If you do not get a dowel out the front of the gun
only cycle it once more then stop if you still haven’t gotten a dowel. Open the dowel reject slide
just underneath the nozzle of the gun and empty out any build up of dowels you have. If a dowel is
jammed, turn off the dowel feeder so as not to continue to insert dowels into the hose. After the
line is clear you can turn the feeder back up cycle the machine and make sure a dowel comes out
the reject slide, then close the slide and cycle it two more times to get a dowel out the nozzle.
G- IS THERE A DOWEL ON TOP OF SLIDE BLOCK?
You should never push a dowel back into the nozzle to try and shoot it. It will only fall on top of
the slide block and cause the gun to not work. You may also bend or damage the slide block and
cylinder if repeatedly hitting the block. After you have checked all the above, remove the four allen
head screws from the front handle and remove the slide block and cylinder to inspect for a dowel on
top. If there is a dowel, remove it and inspect the block to see if it is bent. If it is bent you will
need a new cylinder, if not, re-assemble and test again.
2. If dowels come back into the singulator after being pushed into the supply hose...
A- CHECK SOLUTIONS FROM QUESTION #1.
B- CHECK FOR A KINK IN THE DOWEL SUPPLY HOSE.
It is possible to have a kink in the dowel supply hose somewhere under the hose covering... Undo
the dowel supply hose at the gun and cycle machine to see if a dowel exits the hose. DANGER !!!
DO NOT POINT THE DOWEL HOSE AT ANY PART OF THE BODY. THE DOWEL
WILL EXIT AT A VERY HIGH SPEED AND COULD CAUSE INJURY. If dowels do not
come out a new hose will be needed.
C- THERE MAY NOT BE ENOUGH AIR PRESSURE AT THE MACHINE.
Make sure that proper air is available and set the regulator as stated earlier.
D- CHECK TO SEE IF YOU ARE USING THE WRONG SIZE OF DOWEL.
If your dowel is too long it may be causing the problem.
3. If there is excessive glue on nozzle and plunger... ?
A- IS THE GLUE PRESSURE TOO HIGH?
There is sometimes a fine line between to much and not enough glue in the hole. But if you are get-
ting an excessive amount of glue on the nozzle you are putting to much glue in the hole causing the
excess to be pushed back out and into the nozzle of the gun. Lower glue pressure to as low as possi-
ble.

B- ARE YOU USING THE WRONG TYPE OF GLUE?
If you are using too thick of glue it may cause dribbling at the nozzle. Make sure to use the proper
glue designed for your dowel inserter. It can make a world of difference. A sample of glue is sent
with the machine and also the glue specifications are located in the front cover of this manual.
4. If the gun does not cycle, or cycles erratically when trigger is pushed...?
A- THE TRIGGER COULD BE SHORTED OUT OR HAVE A BAD SOLDER CONNECTION.
Check trigger leads in handle of the gun with a multi-meter and re-solder or replace switch if it is
found to be bad.
B- THE CONNECTION OF THE GUN COULD ALSO BE LOOSE OR HAVE POOR SOLDER CON-
NECTIONS.
Check the connections with a multi-meter and re-solder or replace connections, if they are found
to be bad.
5. If the dowels do not feed properly or get jammed as they come out of the bowl...?
A- CHECK THE ALIGNMENT.
Most likely the bowl is out of alignment with the singulator block ( the block that the dowel
slides back in). Sometimes in shipping the bowl or singulator may get knocked out of alignment.
You should first take off the black shroud which is over the singulator assembly. Then with the pow-
er and air off of the machine, manually feed a few dowels up the bowl until one just exits. As it
comes out of the bowl it should go straight into the singulator block. Check to see that it is properly
lined up in both the vertical and horizontal plains. If adjustment is necessary you can loosen the sin-
gulator in both the up / down and forward / back direction to properly align the two.

Machine Overview
Gun Holster
Valve Bank
PLC
Glue Timer Bowl Driver
Filter/Lubricator/Regulator
Gun
Dowel Reject Slide
Power Switch
Pilot Light
Vibratory Speed Control
Glue / Water Switch
Vibratory Bowl
Dowel Hose
Glue Pot is in back panel
Singulator cover
(Singulator
underneath)

Pneumatic Diagram

Electric Diagram