Hoffmann MU2-P Operating Manual page 11

Hoffmann MU2-P Dovetail Routing Machine
11. Change of router bit
A
LWAYS DISCONNECT THE ELECTRICAL POWER SUPPLY AND COMPRESSED AIR LINE BEFORE
ATTEMPTING ANY SERVICE
Follow proper "Lock-Out / Tag-Out" procedures as specified by the Occupational Safety and
Health Administration "OSHA".
1. Verify that electrical power and compressed air supply has been disconnected.
2. Loosen the lock-nut and raise the motor carriage manually by turning the threaded stem (49/50) on the
right side of the motor carriage. Raise the carriage until the router bit is approx. 1/4" above the machine
table.
3. Remove the old chip breaker from the table recess and discard.
4. Loosen the hex head screw in the black motor bracket and carefully slide the motor out.
5. Use the included metric wrenches (14mm, 17mm) to open the ¼" collet and remove the old router bit.
6. Install new bit and tighten collet securely.
Distance between tip of router bit and top of collet should be:
For W-1 router bit: 15.5 mm = 0.610"
For W-2 router bit: 17.0 mm = 0.669"
For W-3 router bit: 19.0 mm = 0.749"
7. Slide the motor back into the bracket and use the square stop to set the proper distance. The stop has
three steps in one side (W1, W2, W3) and one large step machined in the opposite for W4 router bits.
Slide the square stop out of the fence rail and remove the locking lever, washer and square nut. Place
the stop upside down on the table to use.
Use the smallest step for W-1, the middle step for W-2 and the deepest step for W-3.
8. Lower the carriage to its home position and re-connect electrical power and air supply.
9. Make a test cut and verify proper settings by inserting a Hoffmann key.
10. Disconnect electrical power supply and compressed air again before proceeding to install chip breaker!
11. Raise the carriage again and install a new chip breaker insert. Place a piece of scrap wood over the
insert , lower the hold-down clamp and lock it in place, re-connect ONLY the electrical power supply
Hoffmann Machine Company, Inc.
Phone: (828) 430 - 4510
- 10 -
,
MAINTENANCE OR REPAIR WORK
1386 Drexel Road
Fax: (828) 430 - 4620
www.Hoffmann-USA.com
!
(leave air supply hose DISCONNECTED for
this step!) and slowly lower the running
router bit down through the wood. The scrap
wood eliminates tearout on the surface of the
chip breaker.
Hold the scrap wood securely in place and be aware
of the turning bit at all times. Lower the router carriage
by turning the threaded stem slowly. When the motor
has shut off, secure the threaded stem with the
locknut.
S
QUARE STOP WITH STEPS FOR
Valdese, NC 28690
e-mail: info@Hoffmann-USA.com
W1 - W4
BITS