Operating and Maintenance Manual
©
HOFFMANN MU3-P & MU3-PD
• Version 7.205.00 • 01-2018
5
3
Intended Use and Operation
The HOFFMANN MU3-series dovetail routing machines are designed solely for manually routing dovetail keyways for
Hoffmann Dovetail Keys into solid hard and soft wood, wood-related materials such as MDF, plywood, particleboard and
certain plastic materials.
Dovetail Keyways in sizes W-0, W-1, W-2 and W-3 can be routed with the standard router motor, a larger 1,000 watt router
motor is recommended for use with W-4 router bits.
All work pieces must fall within the following dimensional parameters:
Dimension
MIN (mm)
MAX (mm)
Width
10
Unlimited
(with optional accessories)
Thickness
10
125
Length
100
unlimited
Using HOFFMANN MU3-series dovetail routing machines for any other operation or material
can result in unforeseen dangers and is expressly forbidden!
The manufacturer is not liable for any damages resulting from unapproved use or operation of the equipment. The operator
is solely responsible for any such risks and dangers.
The equipment may not be copied or dismantled for the purpose of duplication of all or part of the design or operation.
Technical changes to this equipment require the prior written consent of the manufacturer.
Any changes, additions, removal of components, etc. not expressly permitted in writing by the manufacturer 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 components of HOFFMANN MU3-series dovetail routing machines during the operating process
are only permitted if such adjustments are required for the proper operation of the equipment and if such adjustment
procedures are outlined in this manual. All pertinent safety rules and regulations are to be strictly adhered to.
3.1 Transportation and Installation
Hoffmann MU3-series dovetail routing machines are shipped in sturdy cardboard boxes which are strapped to shipping
pallets for transport.
Carefully check outer carton for any shipping damage before accepting delivery and compare packing list with included items
and accessories. Inform shipping company and Hoffmann Machine Company, Inc. immediately of any shipping damage,
take photographs and note damage on Bill of Lading.
Remove all strapping and packaging and carefully lift machine out of its carton. To avoid possibility of injury, we strongly
recommend two people work together to lift machine and place it on a suitable table or workbench.
Clean off oil film from machine table, fences (also underside of fences and square stop) with paper towels and non-corrosive
cleaner (e.g. SIMPLE GREEN, Citrus Cleaner, etc.) before connecting electrical power and compressed air supply.
Connect machine power cord to 120 volt outlet or suitable extension cord. Always use shortest extension cord possible.
Use a suitable compressed air line and connect machine to compressed air supply. Customer is to supply male fitting with
1/4” NPT thread for pressure regulator.
