Duro Dyne GBAC ROTO BONDER Manuale d'uso - Pagina 11

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H. WEISS MACHINERY & SUPPLY

CIRCULATION SYSTEM SERVICING

The air is on but the adhesive is not circulating through the plumbing.

NOTE: Never force a valve handle. If a valve handle sticks, remove the valve and soak it in warm water.

Check the valve setting against the function chart to insure that the valves are set properly. If the valves

are set properly, proceed to Step 2.

Check that number 2 valve is either in the up or down position. The circulation system will not work unless

number 2 valve is in either position. Then proceed to Step 3.

Check that the air-regulator unit is functioning according to the maintenance section of the Operating Instruc-

tions.

Disconnect the air line that leads from the regulator to the pump. With the air line disconnected, check

the air supply. If there is no air leading into the pump, proceed to Step 5. If there proves to be a good air

supply, reconnect the air line and proceed to Step 6.

Disconnect the air line leading to the air regulator and check the air supply. If there is a good air supply to the regu-

lator, replace the regulator. If there is no air supply to the regulator, the problem is independent of the GBAC.

Fill a bucket with warm water. Place the GBAC input hose in the warm water and set the valves to fill the

trough from the drum. Activate the pump. If the water begins to pump into the trough, deactivate the

pump immediately and proceed to Step 8. If no water pumps to the trough, proceed to Step 7.

Fill a bucket with warm water. Place the GBAC input hose in the warm water and set the valves to fill the storage

tank from the drum, Activate the pump with air. If the water begins to pump into the storage tank, deactivate

the pump immediately and proceed to Step 8. If the water does not circulate, proceed to Step 9.

Remove the bucket of warm water and set the multi-port valves to circulate the adhesive from the drum

to the trough. If the adhesive will not circulate, proceed to Step 9.

Set the multi-port valves so that adhesive circulates from the storage tank to the trough. Activate the

pump and observe whether adhesive is flowing into the trough. If there is an adhesive flow, proceed to

Step 12. If there is no adhesive flow, proceed to Step 10.

10) Disassemble the plastic union located beneath valve 2. Set the multi-port valves so that glue circulates

from the storage tank to the trough. If adhesive is pumped from the union, disconnect the air and replace

the valve assembly 1 and 2.

Note: It is important that all surfaces on the valves and the unions be free of glue residue before reassem-

bly.

If the glue is not pumped out from the union, disconnect the air, reassemble the union and proceed to Step

11 .

11) Set the multi-port valves so that the adhesive empties from the tank to the drum. Activate the pump. If the

adhesive exits the machine from the out port, replace valves number 3 and 4. (Order an assembly.) Close

valve number 5 if supplied, before disassembling valve number 3 and number 4. After replacing valve number

3 and number 4, open valve number 5. If the adhesive is not pumped out the exhaust port, proceed to Step

12.

12) Set the multi-port valves so that the trough is filled from the drum. Activate the pump. If adhesive is

pumped into the trough, replace valve assembly number 1 and number 2. If adhesive does not pump into

the trough, proceed to the pump service manual.

PHONE: (718) 605-0395 - www.hweiss.com

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