I was hesitant to purchase this jig saw due to it's cost and noted issue by others regarding the removal of the metal shoe accessory. Fortunately I timed my purchase with Bosch's last sale and received $50 off and had some cash back from my CC so I guess I scored a good deal.
As for the "infamous" stuck metal shoe situation I just experimented with an industrial lubricant I had sitting around which I'd forgotten about called Krytox GPL 106 oil. Mine was a sample given to me years ago by a supplier but I did find it here GENUINE GPL 106 Oil Lubricant PFPE Perfluoropolyether Auto Roof Door Weatherstripping Rubber Lubricant 1oz 28g Bottle
on Amazon (but can be found for considerably less on "that" auction site).
Here is the data for the lubricant:
"Krytox® GPL oils and greases are based on perfluoropolyether (PFPE) oils. This series of synthetic fluorinated lubricants are used in extreme conditions such as continuous high temperatures up to 260°C (500°F) and will survive short-term peak temperatures of up to 270°C (518°F). Chemically inert and safe for use around most chemicals, these lubricants are nonflammable and are also safe for use in oxygen service.
Krytox® oils and greases do not damage plastics or elastomers nor cause corrosion to metals. They are commonly used as lubricants in automotive, industrial and semiconductor applications as well as in solving many other routine lubrication problems. In addition, they provide exceptionally long life times in sealed-for-life bearings and extend re-lubrication intervals in bearings that require re-lubrication.
DuPontTM Krytox® GPL 100 -107 oils are clear, colorless, fluorinated synthetic oils that are non-reactive, nonflammable, safe in chemical and oxygen service, and are long lasting.
All standard grades of grease are thickened with polytetrafluroethylene (PTFE). This special high efficiency thickener has a melting point of 325oC (617oF) and has low molecular weight and sun-micron (0.2M) particle size for higher performance in bearings."
What all that means is it should perform really well in the harshest environments and have no detrimental effects on the tool or materials.
After coating both mating shoe surfaces (metal and plastic) I slid the metal shoe on until it grabbed and carefully removed it using pliers wrapped in a cloth so as to not mar it. I did this a number of times and eventually installed it fully and left it on. After several minutes and with the use of small block of wood (about 1" cut piece of 2" x 4") to press against the metal shoe edge I was able to remove the shoe without tools using only the wood block and minimal manual effort. If necessary the oil appears to wipe cleanly off the plastic shoe without any visible residue.
Since I just purchased and received the jig saw I haven't had any opportunity to use it yet. But once I do I will monitor how well the lubricant remains effective and report back on any issues... I'm "guessing" this jig saw will outperform a very old Sears homeowner special I had since 1978 so a replacement was long overdue.
FYI some other important info I uncovered about this jig saw. Depending on when you purchased this tool and which version of the operating instruction you have page 14 may contain erroneous info regarding lubrication. If you have the latest manual there is a paragraph titled "Cleaning Blade Holder."
In it there is apparently incorrect instructions informing the user to regularly spray penetrating oil in the saw blade holder (Fig 17)." I just got off the phone with Bosch (Power Tools Consumer Helpline: 877-267-2499) and was told this is in error and should not have been included in the instructions. Bosch CSR confirmed this with their tech support department and all were surprised the info made it into the US manual. Now I wonder if this was intended for tools outside the US? Looks like they're calling Germany to consult and revise the manual.
Bottom line, at no time is it necessary for the user to lubricate this tool!
BTW the reason I contacted Bosch was I also own a Bosch cordless jig saw (JSH180BL) and couldn't understand why its manual didn't contain similar lubricating info? Well now we know.
LOL, since "real men" don't (normally) read instructions I suppose there isn't going to be much fallout from Bosch's mistake ;)