| PROBLEM | CAUSE | SOLUTION |
|---|---|---|
|
1) Material not flowing through nozzle. |
Gelled or hardened adhesive in nozzle. Adhesive can harden in the nozzle at 70°F in about 5-7 minutes. As the air temperature increases, gel time is shorter. | Replace mixing nozzle. |
| Too cold for adhesive to flow. | Keep material in heated storage area: Store epoxy at 45°- 90°F; Store Acrylic at 32°- 80°F. | |
| Surface is crusting. | Remove nozzle, dispense small amount of material, then replace nozzle. | |
| Obstruction in nozzle or on outlet of cartridge. | Change to new nozzle or remove obstruction from cartridge outlet. | |
| Insufficient air pressure to the pneumatic tool. | Set air pressure at 80 - 100 psi. | |
| 2) Leakage from front of threaded section of cartridge. |
Nozzle coupling nut is cross-threaded. | Remove coupling nut and reattach, taking care not to cross-thread. |
| Cracked or punctured cartridge. | Do not attempt to dispense damaged cartridge. | |
|
3) Material leaking from back of cartridge during dispensing. |
Excessive pressure resulting in swelling of cartridge or misalignment of retaining wiper. | Regulate air pressure on pneumatic tool. |
| Do not overdrive manual tool. | ||
| See problem 1 to find out why material is not flowing. | ||
| Misalignment of tool push rods and cartridge. | Adjust/repair dispensing tool. | |
| Misalignment of cartridge. | Make sure cartridge is inserted correctly. | |
|
4) Resin (white) getting into hardener (black) chamber or vice versa. |
Excessive pressure. | Regulate air pressure on pneumatic tool. |
| Do not overdrive manual tool. | ||
| Check to see mixing nozzle is not filled with gelled or hardened epoxy. | ||
| Make sure one of the cartridges is not leaking out of the bottom (refer to problem 3). | ||
| 5) Hardener (black) only being dispensed or mixture is too dark. |
Adhesive too cold to flow and mix properly. | Keep material in heated storage area: Store epoxy at 45°- 90°F; Store Acrylic at 32°- 80°F. |
|
6) Adhesive won't harden in hole. |
Adhesive not mixed thoroughly. | Abandon hole and drill new hole. If not possible, contact Simpson. |
| Make sure wipers on cartridge are equalized prior to dispensing and adhesive being dispensed is a uniform color before filling holes. Attach nozzle and dispense adhesive to the side until properly mixed (uniform color). | ||
| Base material too cold for epoxy being used. | Allow more time for epoxy to cure. | |
| Use Acrylic-Tie when base material temperature is below 40°F. |
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