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OPERATING MANUAL
for
Hoffmann Dovetail Routing Machine
Model PP2
Hoffmann Machine Company, Inc.
1386 Drexel Road
Valdese, NC 28690 USA
Fax: (828) 430 – 4620
Phone: (828) 430 - 4510
e-mail: info@Hoffmann-USA.com
www.Hoffmann-USA.com
Toll-free Technical Support: (866) 248 – 0100
© Hoffmann Machine Company, Inc.
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Summary of Contents for Hoffmann PP2
- Page 1 Hoffmann Dovetail Routing Machine Model PP2 Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690 USA Fax: (828) 430 – 4620 Phone: (828) 430 - 4510 e-mail: info@Hoffmann-USA.com www.Hoffmann-USA.com Toll-free Technical Support: (866) 248 – 0100 © Hoffmann Machine Company, Inc.
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Page 2: Safety And Warning Labels
For your own safety, please take a moment to locate and read all warning labels before operating this machine. If a label has been removed, defaced or is illegible, please contact Hoffmann Machine Company, Inc. to request a free replacement. -
Page 3: Safety Rules
11. When interrupting work or upon leaving the area, machine must be switched off. Only trained and qualified personnel must be allowed to use machine. Only original Hoffmann replacement parts must be used to rebuild machine. Hoffmann Machine Company, Inc. -
Page 4: Operator Training
The Hoffmann Dovetail Routing Machine model PP-2 is designed solely to process material for the Hoffmann Dovetail Joining System. This machine is to be used only to process material for Hoffmann Dovetail Keys, size W-1, W-2, W-3 and W-4. SE OF THIS MACHINE FOR ANY OTHER OPERATION IS DANGEROUS AND WILL VOID THE WARRANTY The manufacturer cannot be held liable if the machine is used for any operations other than outlined in this manual. -
Page 5: Technical Data
The potential risk of injury on the electrical parts of the machine. The potential risk of injury on the pneumatic elements of the machine. 6. Toolkit The machine is shipped with a Hoffmann toolkit, consisting of: • Hex key 2.5mm •... -
Page 6: Electric Connection
Hoffmann PP2 Dovetail Routing Machine - 5 - 8. Machine Installation 8.1 Unpacking – Inspection Upon receipt, check the machine and shipping container for any damage. Report any transportation damage to the delivering carrier and indicate it on the bill of lading. Request an immediate inspection for assessment of damage. -
Page 7: Machine Operation
Always use the longest key possible to achieve a tight joint on the face side of the workpiece. (PU2 model shown - routing height adjustment is identical for PU2 and PP2 machines.) With the routing height and the keyway position set, place the material on the table and lower the pneumatic hold-down clamps to within 1/8”... - Page 8 9.3 Miter joints with angles other than 45 degrees Replace the standard 45-degree steel fence plate (shipped with machine) with either a fixed fence plate for hexagon or octagon frames, or the adjustable Hoffmann Synchro fence and proceed as outlined in section 9.2.
- Page 9 The machine is adjusted for both keyway locations and the routing heights are set for each head. For a production environment, it is advisable to build a fixture to support the moulding in the correct position. (Pictures depict PU-2 single-head machine, same set-up is used for PP2 models) dovetail keyway locations...
- Page 10 Hoffmann PP2 Dovetail Routing Machine - 9 - 10. Accessories for PU2 and PP2 production models Synchro fence, adjustable from 18-64º Table flip-stop with spring loaded tab order number: W 3105000 order number: W 3900002 Inside corner fences for 45º miters...
- Page 11 8. Lower the carriage to its home position. 9. Make a test cut and verify proper settings by inserting a Hoffmann key. 10. Raise the carriage again until the bit is approx. 2” above the table, then install a new chip breaker insert.
- Page 12 Hoffmann PP2 Dovetail Routing Machine - 11 - 11.1 Change of router bit on PP2 production models LWAYS DISCONNECT THE ELECTRICAL POWER SUPPLY AND COMPRESSED AIR LINE BEFORE ATTEMPTING ANY SERVICE MAINTENANCE OR REPAIR WORK Lift motor carriage with threaded stem Router bit raised approx.
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Page 13: Fine Adjustment
To re-set the machine to the factory setting, use the included aluminum set-up jig. Wrong Setting Correct Setting 12. Applications for the Hoffmann Dovetail Joining System Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690... -
Page 14: Maintenance
• The cooling vents in the motor housing must be kept free from dust and debris. • Promptly replace damaged or worn router bits. Use only Original Hoffmann Dovetail Router Bits for best performance. • All fasteners, nuts and bolts should be checked periodically and re-tightened as necessary. -
Page 15: Parts List
Hoffmann PP2 Dovetail Routing Machine - 14 - 15. Parts List 1. Cast aluminum table base 2. Steel cabinet 3. 45 degree fence plate 4. Bolt 5. Washer 6. Square nut 7. Stop-ring 8. Bolt 9. Fence rail 10. Grommet 11. - Page 16 Hoffmann PP2 Dovetail Routing Machine - 15 - 42. Screw 43. Locking lever 44. Screw 45. Hold-down plate 46. Chip breaker 47. Screw 48. Screw 49. Guide block, front 50. Guide block, rear 51. Knob 52. Square nut 53. Screw 54.
- Page 17 Hoffmann PP2 Dovetail Routing Machine - 16 - 16.1 PP2 side view Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690 Phone: (828) 430 - 4510 Fax: (828) 430 - 4620 e-mail: info@Hoffmann-USA.com www.Hoffmann-USA.com...
- Page 18 Hoffmann PP2 Dovetail Routing Machine - 17 - 16.2 PP2 front view Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690 Phone: (828) 430 - 4510 Fax: (828) 430 - 4620 e-mail: info@Hoffmann-USA.com www.Hoffmann-USA.com...
- Page 19 Hoffmann PP2 Dovetail Routing Machine - 18 - 16.3 PP2 top view Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690 Phone: (828) 430 - 4510 Fax: (828) 430 - 4620 e-mail: info@Hoffmann-USA.com www.Hoffmann-USA.com...
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Page 20: Electrical Schematic
- 19 - 17. Electrical Schematic This schematic depicts the typical wiring diagram for a PU2 single-head routing machine. On PP2 double-head models, the second motor is wired into the same contactor. Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690... -
Page 21: Pneumatic Schematic
Hoffmann PP2 Dovetail Routing Machine - 20 - 18. Pneumatic Schematic motor carriage or main cylinder pneumatic hold-down clamp Hoffmann Machine Company, Inc. 1386 Drexel Road Valdese, NC 28690 Phone: (828) 430 - 4510 Fax: (828) 430 - 4620 e-mail: info@Hoffmann-USA.com... - Page 22 Hoffmann PP2 Dovetail Routing Machine - 21 - 19. Hoffmann Dovetail Keys, standard brown plastic, without flange Part number length in inches length in mm W 9100600 W1 – 1/4” 6.0mm W 9101000 W1 – 3/8” 10.0mm W 9101400 W1 – 9/16”...
- Page 23 SELLER MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. It is buyer’s sole responsibility to test, approve and authorize the use of the Hoffmann Dovetail Joining System and the Hoffmann Dovetail Keys or “Schwalbe” for any and all applications.
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Page 24: Terms And Conditions Of Sale
The terms and conditions contained herein apply to proposals made, and to purchase orders received, by HOFFMANN MACHINE COMPANY, INC. (hereinafter called “Seller”), and sets forth the entire agreement between the parties hereto, and supersedes all communication, representations or agreements, whether... - Page 25 Hoffmann PP2 Dovetail Routing Machine - 24 - 21. Terms and Conditions of Sale (continued) 6. Warranty Adjustment Terms: (a) Adjustments will be limited to claims which are presented promptly after the product is found to be defective, and within the aforesaid warranty period.
- Page 26 Hoffmann PP2 Dovetail Routing Machine - 25 - 21. Terms and Conditions of Sale (continued) 12. Cancellations or Returns: Buyer shall not cancel any order nor return any equipment without first obtaining the written consent of Seller. In any event, in case of refusal or inability of Buyer to accept a delivery, the Buyer shall nevertheless be liable for freight, express, storage, handling, restocking and any other expense resulting.