Following are recommended tips for troubleshooting Doboy HA-720 Hot Air Bag Sealer problems. You will also find a list of part numbers and descriptions for commonly used parts.
Area of Machine |
Advice / Technique |
One Heat Element Does Not Get Hot (Applies to HA-720) |
Heating Element wires may be loose or element is burned out. Check connections at temperature controller. If both are tight, disconnect and check for continuity across heat element wires. Solution: If no continuity, replace Heater Element. |
Neither Heat Element Gets Hot (Applies to HA-720) |
Temperature controller may be broken. Solution: Refer to Temperature controller manual and replace if necessary. |
General Machine Set-up: (Applies to Doboy HA-720) |
We will gladly try to talk you through proper set-up of your machine - Call us! |
Problem | Possible Cause & Solution |
PROBLEM: Contact us (Applies to Doboy HA-720) |
Contact us with your problems. We will post the solution here! Watch here for more Solutions, Tips, and Tricks! |
* Machine troubleshooting & repairs should only be attempted by a qualified mechanic or electrician. Power should always be disconnected prior to troubleshooting.
Parts for Doboy HA-720 Series Machines | ||
Spare | Part # | Description |
* | 292723 | Heating Element with Cable |
* | 273656 | Thermocouple |
421732 | Temperature Controller - Call with Serial Number | |
252463 | #40 Carrier Chain - Call with Serial Number | |
507168 | Carrier Chain Connector Link | |
200622 | Chain Pressure Bar - Fixed Side (Rear Side) | |
247465 | Chain Pressure Bar Set - Spring Side (Front Side) | |
246641 | Spring - Compression [Use two (2) with each Pressure Bar Set] | |
244705 | Chain Back-up | |
244638 | Chain Guide / Lubricator (Operator Side) | |
063-45853 | Idler Roller Assembly | |
182129 | Bearing - for Compression Roller | |
230961 | Hinge Set - Lift-off - Left-hand (for front guard door) - machine uses 2 sets | |
237224 | Hinge Set - Lift-off - Right-hand (for front guard door) - machine uses 3 sets | |
357-45955-38 | Screw (to install Hinges) - twenty (20) required, total | |
257009 | Assembly - Motor with Cord | |
259060 | Solid State Relay |
NOTE: A * in the "Spare" column denotes a part that is recommended as a common spare part for this machine. If a number is listed, that quantity is typically included in the New Machine Spare Parts Kit Option available when ordering a new machine. Trimmer and Coder spare part components with a quantity and * are included only with the respective Trimmer and Coder New Machine Spare Parts Kit Options. (Spare Parts Kit contents are subject to change without notice.)
Call Toll-Free with your Doboy Parts Order 1-800-785-6785