I need a manual for a B&D Router Model No. 7604 Type 3/4.

remove collet nut and clean inside of motor shaft, are you using standard size bit and not metric. most likely solution is to replace collet nut


https://www.routerforums.com/threads/collet-and-nut-for-b-d-7604.147988/

This link doesn't look good

https://www.google.com/search?q=ENVIROSHADE+GAZEBOS+7604+PART+6026

This one is a little better and shows the Chinese Maker

https://www.google.com/search?q=ENVIROSHADE+GAZEBOS+parts

Fortunately, good old Amazon carries generic parts

https://www.amazon.com/Canopy-Replacement-Parts/s?k=Canopy+Replacement+Parts

..

in wood. The tool consists of a motor that drives a cutting bit; the bit spins quickly and cuts the wood. The router can be moved horizontally through the wood to form a desired shape, and the type of edge on the shape is determined by the design of the router bit. Different edge designs can be cut by changing bits. It is very easy to change the bit on a Black & Decker router.

Step 1 Turn the router off and ensure that it is disconnected from the power supply. Wait for the router bit to cool down if it was recently used.
Step 2 Detach the chip shield from the back of the face plate.
Step 3 Depress the spindle lock button on the side of the router and rotate the spindle until it locks.


Step 4 Turn the router upside down and place it on a flat surface.
Step 5 Keep the spindle lock button depressed and loosen the collet nut that holds the bit with the spanner wrench. The collet is the device on the router that holds the bit in place.
Step 6 Remove the bit and insert the shank of the new bit into the collet. The shank should protrude at least 1/8" from the collet.

Step 7 Keep the spindle lock button depressed and tighten the collet nut with the wrench.
Step 8 Release the spindle lock button. Reattach the chip shield.

Here is a link to Dewalt's service net that shows a breakdown for this tool.

Detail

Here is a replacement parts list....


http://www.ereplacementparts.com/black-and-decker-7604-type-router-parts-c-4167_4326_12315.html

and here's the user manual, although you will need to register (free) at the site to see it

http://powertool.manualsonline.com/mdownloads/e773e4d8-68d9-4c88-b65b-9964acf534cb.pdf

go to dewaltservicenet.com and on the left side of site under manuals type in the model number as listed and then you need your type number because there are 3 different ones. when the option comes up on the right side of the next page you can download the manual in english. the manual is 18 pages long.

Use this link for a type 4 and download that instruction manual. It will apply most closely to your type 3, with very few differences, I think. The type variations are usually minor revisions of some kind, otherwise they change the model number itself.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

The default user name and password for Cisco routers and switches is usually:
user name: Cisco password: Cisco
Make sure to capitalize the C's.

Go to this link and download the PDF file. You'll be routing the shapes of your dreams in no time at all. Pantograph manual.
Incidentally, you can get a manual for the router at the same site, by going to the home address and inputing your model number.

If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!

Go to Dewaltservicenet.com and in the middle of page at bottom it will ask if you are looking for manual, type in your model number and on the next page look at the manual for the type 3 router. Hope this helps