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 Operating and Maintenance Manual

 
 

 

©

 

HOFFMANN MU3 & MU3-D

 

• Version 7.205.00  •  01-2018 

36

 

 

(e) Final determination as to whether any adjustment is allowable, and as to the extent thereof, rests with Seller. Full adjustment, if 
allowed, normally will be made by replacement in kind on an exchange basis. Pro rate adjustment, if allowed, normally will be made by 
the issuance of credit. In all cases, however, Seller reserves the right to make adjustment by repair, replacement or credit. 
(f)  Replacement  for  products  found  subject  to  adjustment,  whether  new  or  repaired,  will  be  shipped  F.O.B.  city  of  destination  with 
transportation charges prepaid by Seller. 

 

7. Installation: 
Buyer shall install machinery purchased from Seller at Buyer’s cost and expense, unless otherwise expressly stipulated in writing.  

 

8. Packaging and Shipment: 
All  products  shipped  hereunder  will  be  packaged  in  accordance  with  standard  commercial  practice  for  domestic  shipment.  Seller’s 
liability as to delivery ceases upon making delivery of products purchased hereunder to carrier at Seller’s facility, in good condition, the 
carrier acting as Buyer’s agent. All claims for damages must be filed with the carrier or Buyer’s insurer as appropriate. Seller will select 
the method of shipment unless Buyer does so in writing at least ten (10) days in advance of the scheduled delivery date. Equipment 
held for Buyer because of Buyer’s delay in acceptance, shall be at Buyer’s risk and expense. Seller does not assume liability for shipping 
in the least expensive manner. 

 

9. Deliveries: 
It is the desire of Seller to meet requested delivery schedules, however, Seller shall not incur any liability, consequential, collateral or 
otherwise, due to any delay or failure to deliver for any reason, other than arbitrary refusal by Seller to perform. Any delivery indication 
furnished by Seller only represents the best estimate of the time required to make shipment. 

 

10. Assignment: 
Buyer shall not assign this purchase order or any interest herein or any rights thereunder, without the prior written consent of Seller 

 

11. Termination: 
Seller may terminate the purchase order or any part thereof herein referred to or any other purchase order or orders then outstanding 
by written, telegraphic or electronic mail notice to Buyer if Buyer becomes insolvent or is subject to proceedings under any law relating 
to bankruptcy, insolvency or relief of debtors. Upon such termination Seller shall be entitled to receive reimbursement for reasonable 
termination charges. 

 

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. In no event are orders for machines or parts built to customers’ specification subject to cancellation 
and Buyer shall be liable for work done and materials used. 

 

13. Specifications: 
(a) Phone order specifications are filled at Buyer’s risk unless confirmed in writing prior to commencement of manufacture. 
(b) If equipment is found not the meet original specifications, Seller shall have a reasonable time to make adjustments. 

 

14. Law Governing: 
Buyer’s purchase order shall be governed by and construed according to the laws of the State of North Carolina. The courts of the State 
of North Carolina shall have jurisdiction over any controversy that may arise out of the dealings between Buyer and Seller. 
 
15. Force Majure: 
Seller shall not be liable under this agreement by reason of its delay in the performance of or failure to perform any of its obligations 
hereunder  if  such  delay  or  failure  is  caused  by  acts  of  God  or  the  public  enemy,  riots,  incendiaries,  interference  by  civil  or  military 
authority, compliance with government laws, rules and regulations or any fault beyond its control. 

 

16. Acceptance: 
Payment for or a deposit made for the products shall constitute a contract embodying all of terms and conditions stated herein. 

 

17. Ownership: 
All products remain the sole property of the Seller until all charges, including all transportation, crating and installation costs, are paid 
in full. 

 

18. Severability: 
The provisions of these Terms and Conditions are intended to be severable. If, for any reason, any of the above provisions should be 
found  unenforceable  or  invalid  in  whole  or  in  part,  in  any  jurisdiction,  such  provision  be  ineffective  only  to  the  extend  the 
determination of invalidity or unenforceability in that jurisdiction. Any such determination shall not affect the enforceability or validity 
of the remaining provisions. 

 
This manual was created to the best of our knowledge at time of writing 

– subject to future updates.  

 

Summary of Contents for MU3 Series

Page 1: ...ny Inc 1386 Drexel Road Valdese NC 28690 USA Ph 828 430 4510 www Hoffmann USA com Version 01 2018 Operating and Maintenance Manual MU3 and MU3 D manual dovetail routing machine Version 7 205 00 HOFFMA...

Page 2: ...DUST COLLECTION CONNECTIONS 12 10 CHANGING ROUTER BITS 13 10 CHANGING ROUTER BITS CONTINUED 14 11 ROUTER BIT ADJUSTMENTS 15 12 SELECTING KEY LENGTH AND SETTING ROUTING STROKE 16 13 CALIBRATING AND USI...

Page 3: ...s are used in this operating manual Safety Warning Symbol This symbol warns of a possible danger Ignoring the safety instructions can lead to serious bodily harm and or damage to the equipment and or...

Page 4: ...achine for your information and protection 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 illegi...

Page 5: ...ufacturer will immediately void the warranty Any risks dangers or damages resulting from unauthorized modifications are solely the responsibility of the user operator Adjustments on moveable component...

Page 6: ...this operator manual available to all machine operators and maintenance personnel The equipment owner must assure that all operators and maintenance personnel are qualified to work on this equipment...

Page 7: ...of wood or wood related materials Dovetail Key HOFFMANN Dovetail Keys 4 2 Machine Description HOFFMANN MU3 series dovetail routing machine consists of HOFFMANN MU3 series dovetail routing machine 45 d...

Page 8: ...ring operation Air pressure during storage transport 59 104 F 32 140 F max 20 F max 40 F 15 80 without condensation at 95 F 860 1060 hPA bar 860 1060 hPA bar 5 1 Operator Environment The work areas fo...

Page 9: ...ng operation if these adjustments are absolutely necessary and if the procedure is fully outlined and approved in this operator manual 6 3 Defective equipment If the machine does not function properly...

Page 10: ...th of the router bit 7 Noise Emissions The machine generates a work place Sound Pressure Level SPL of approx 75 3 dB A when processing a work piece Local conditions could increase the SPL which could...

Page 11: ...immediately voids the warranty and releases the manufacturer from any and all liability Unapproved use of the machine Improper installation start up maintenance or operation of the machine Operation...

Page 12: ...zed suction hose from shop vacuum or connect the dust collection hose to central dust collection system Proper dust collection should always be used for best results and to keep the machine and work a...

Page 13: ...rriage until the router bit is approx 1 4 3 8 above the machine table 4 Loosen the Allen head screw 3 on the underside of the motor bracket to release the motor Carefully slide the motor out toward th...

Page 14: ...t and lower the carriage to its home position 13 Make a test cut and verify proper settings by inserting a Hoffmann key adjust setting if necessary 14 Raise the carriage again and install a new chip b...

Page 15: ...joint If the material allows a deeper setting will increase the draw or pull of the Key Incorrect If the router bit projection is set too shallow the Key is not able to pull the miter faces together...

Page 16: ...ich are too short as the resulting joints will not be as strong or tight as they could be If correct length Keys are not available stacking two Keys is advised When using Solid Wood Dovetail Keys it i...

Page 17: ...for keyway location 3 Display mounting enclosure 4 Height adjustment bar with magnetic tape 5 Locking lever for height adjustment bar 6 Sensor for routing height bar 7 Sensor for keyway location 8 Loc...

Page 18: ...tip of router bit is flush or level with table surface 14 1 Calibrating Bottom Display to set keyway position The minimum distance from the miter tip to the center of the dovetail keyway on MU 3 serie...

Page 19: ...osen or remove locking lever for fence plate 8 and slide fence plate 9 all the way forward toward motor 2 Press for 3 seconds to enter Parameter Mode 3 Press repeatedly until Parameter 9 P9 is reached...

Page 20: ...ter calibration 1 Use a ruler or digital caliper and mark a random distance from miter tip to keyway center with a pencil we used 25 00mm as example 2 Place workpiece on machine and adjust center fenc...

Page 21: ...4 Parameter Listing for ELGO IZ14E Digital Liquid Crystal Display Parameter Specification Default Setting P01 A Counting Direction 0 A 0 positive counting direction A 1 negative counting direction P0...

Page 22: ...nce plate in or out determines the locations along the miter face at which the dovetail keyways are being routed Once set and locked in place left and right hand parts are processed for perfectly alig...

Page 23: ...Maintenance Manual HOFFMANN MU3 MU3 D Version 7 205 00 01 201823 16 Examples of joining angles other than 45 degrees Material Processing Part 1 Processing Part 2 Joining parts at any angle Joining ra...

Page 24: ...ong the mitered end depending on the material being joining For profiled moulding try to place Keys in thicker portions for best results Generally moulding over 1 1 4 32mm wide should be joined with t...

Page 25: ...W3060001 W3011004 Inside Corner Fences left and right W3011005 Inside Corner Fences w height extensions W3019000 Inside Corner Fence Height Extension Kit For referencing off inside moulding edge and f...

Page 26: ...0 Table Extensions W3029000 Fence Rail Extensions W3028000 Routing Stroke Limiter Anodized aluminum table extension kit left and right side with mounting brackets Anodized aluminum fence rail extensio...

Page 27: ...2036351 Ti AL N coated for longer life W 4 Ti AL N coated carbide dovetail bit w 8mm shank W2048001 Requires 8mm collet and larger 1 000 watt motor Every new bit is shipped with a new un cut phenolic...

Page 28: ...1 000 pcs carton medium brown polymer W9204600 W2 1 13 16 W2 46mm 1 000 pcs carton medium brown polymer W9206000 W2 2 3 8 W2 60mm 1 000 pcs carton medium brown polymer W9301200 W3 1 2 W3 12 7mm 1 000...

Page 29: ...041 W2 5 8 W2 15 8mm 1 000 pcs carton cherry color W9202200 8041 W2 7 8 W2 22mm 1 000 pcs carton cherry color W9201500 8065 W2 5 8 W2 15 8mm 1 000 pcs carton walnut color W9202200 8065 W2 7 8 W2 22mm...

Page 30: ...approx 20 pieces each of all W 1 Dovetail Keys Inside label clearly indicates each Key size with dimension and part number Case contains approx 180 Keys Part number W9000222 W 2 Hoffmann Dovetail Key...

Page 31: ...Dovetail Keys slide into keyway too easy Motor and router bit projection setting incorrect Adjust motor and or router bit as shown under heading 11 and 12 Keyway position offset on left and right sid...

Page 32: ...Operating and Maintenance Manual HOFFMANN MU3 MU3 D Version 7 205 00 01 201832 24 a Machine Drawings and Parts Lists...

Page 33: ...Operating and Maintenance Manual HOFFMANN MU3 MU3 D Version 7 205 00 01 201833 24 b Machine Drawings and Parts Lists...

Page 34: ...sion guide rods 2 19 7 205 00 12 02 Height adjustment bar 1 20 W3060001 Fence Plate 45 degr MU 3 1 21 7 205 00 17 03 Locking Lever height adjustment bar 1 22 7 205 00 19 01 Motor Adjustment Spindle 1...

Page 35: ...discretion Eventual payment of outstanding amount does not automatically reinstate warranty Warranty can only be reinstated by seller and reinstatement must be confirmed by seller in writing to be va...

Page 36: ...ent or is subject to proceedings under any law relating to bankruptcy insolvency or relief of debtors Upon such termination Seller shall be entitled to receive reimbursement for reasonable termination...

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