How can I get a manual for the Remington titanium R 9190 shaver?

The trimmer on model F4790 is not made to be removed and no replacements are available. A whole shaver can be obtained very inexpensively at shaveroutlet.com

Remington 4790 Pivot Flex Titanium Foil Shaver factory refurbished

You can download the user manual for model F5790 at shaveroutlet.com. Use link below and then click on 'User Manaul' near the add to cart button

http://shaveroutlet.com/shavers/foil-shavers/remington-f5790-titanium-pivot-and-flex-triple-foil-shaver-p-819.html

You will find the correct replacement heads for model R-950 at shaveroutlet.com. See link below

http://shaveroutlet.com/shaver-replacement-parts/remington-sp19-titanuim-microflex-replacement-head-set-p-222.html

try looking in the manual for the steps on how to use remington titanium r 9500 electric razor..

You will find the correct battery type at shaveroutlet.com. See link below. You will need to order 2

http://shaveroutlet.com/shaver-replacement-parts/batteries/shaver-battery-pack-for-most-shavers-p-211.html

This indicates that it is time to change the foil. You will find replacements at shaveroutlet.com. See link below

http://shaveroutlet.com/shaver-replacement-parts/remington-sp96-smart-system-series-foil-and-cutter-set-p-237.html

Yes both will fit your model. You will find both at shaveroutlet.com. See links below

http://shaveroutlet.com/shaver-replacement-parts/remington-sp21-titanium-microflex-replacement-heads-p-223.html

http://shaveroutlet.com/shaver-replacement-parts/remington-sp18-microflex-heads-p-221.html

You will find a replacement at shaveroutlet.com. See link below

http://shaveroutlet.com/shaver-replacement-parts/remington-rotary-tct-ms32000-more-charging-cord-p-131.html

Remove the Two ( 2 ) Phillips Head screws on the Back side of the
R 9190 shaver near the Electrical Plug .

Pry off the Gray Rubber cover that those two ( 2 ) now removed screws went thru.
Now remove the Two ( 2 ) exposed screws up near the " Trimmer Switch "
Note: If you Popped off the " Trimmer Switch " during your efforts - DON'T WORRY . It will simply pop back in place when you are finished with your repairs.

Found this link that may help you out. Seems like they are made to be used then tossed out. What a waste. Anyway the battery replacement issue is a common problem... http://k0lee.com/2008/04/replacing-remington-and-norelco-shaver-batteries/