Here are the direct links (in PDF format) for the instructions and booklet. NOTE: These PDF files are several MB each.

• LEGO Set: 8258 – Crane Truck
  Book 1/4
  Book 2/4
  Book 3/4
  Book 4/4
  PF Leaflet

• LEGO Set: 8265 – Front Loader
• (also includes instructions to use the PF Motor Kit elements in 8293: Battery Box, M-motor, Pole Reverser).
  Book 1/3
  Book 2/3
  Book 3/3

• LEGO Set: 8263 – Snow Groomer
  Book 1/2 (Main Model)
  Book 2/2 (B-Model)
  

While the Costumer Service pages have included the 8293 B-model instructions, these were already available from the TECHNIC Products website, you can find them on the TechnicBricks website.

TechnicBRICKs happens to have some tips on things NOT to do.  These are some simple structures that if you build… you probably will never get the pieces apart again.  Unless you use a knife, or possibly break the pieces.

Here is one example:

Don’t Do:

Instead, Do:

Notice the change?  It uses an axel with half-bushings, instead of a long black friction pin.  This lets you push the axel out.

There are several more at the TechnicBRICKs “Don’t Do This At Home” article.

UPDATE: Thanks to Bazmati (link is to his YouTube profile), I’ve updated the picture showing one of the “Don’t Do” pictures, plus the original “Do” pictures.