Fatmax 10-825 inserting and removing blade

You have to loosen, NOT remove, two bolts on the blade cover so it rotates just enough to give you access to the spindle bolt holding the blade on. Check this web page for the user manual. You'll need the pictures on page 5 and the description on page 14 of this manual.

https://www.manualslib.com/manual/966235/Stanley-Fatmax-Fme720.html?page=14#manual

HI!Kindly pull the button on the end of the knife and then after you remove that you can now put the blade of your knife.

How do I change the blade on the quick change/instant change knife? Warning: Blades are sharp and can cause serious injury. Be extremely careful when handling blades. Wear eye protection and dispose of used blades properly, such as wrapping in duct tape.


FULLY EXTEND THE BLADE.
Press down and forward again on the slide button until the button is in the full front of the top slot (0 through 3 in the below picture).

Note- the blade must be extended beyond the 3rd detent position. This will cause the slide button to remain in a down position, allowing the blade release button to operate.

PRESS AND HOLD THE BLADE RELEASE BUTTON ON THE FRONT SIDE OF THE KNIFE. (Step 4 in the below picture)

Note- if the blade is not fully extended beyond position 3) , the blade release button will not work.

Remove the old blade carefully.
Insert new blade.

NOW, RELEASE THE BLADE RELEASE BUTTON.
ENSURE THE BLADE IS LOCKED IN PLACE. If the blade does not retract, try carefully giving a slight tug on the blade to reseat.

Not sure exactly because I don't own one, but the review seems to indicate you push the blade positioner all the way forward, and push a release to remove the old one out the front, and then push a new own in until it clicks in place. With the blade positioner all the way forward.
But the review said it did not work well.

http://www.crunchgear.com/2008/12/05/review-stanley-fatmax-utility-knives/

The model in your picture is a fixed blade utility knife (model 10-816). Your question asks for instructions for model 10-778, which is a retractable knife. I'll guide you through the 10-778 which you asked for, if you need instructions for the pictured 10-816 please re-post the question.

Push the thumb slide forward as far as it goes exposing the blade. Press the blade change button on the side of the knife (the small button on the left side near the blade) and pull out the old blade.
Insert the new blade and slide thumb slide back to fully engage blade in the internal lock.

Wiper Arm & Blade (Front) Removal & Installation Wiper Blade To Remove:

1. Turn ignition switch to ACCY position.
2. Turn wiper switch to PULSE position and turn ignition OFF when wipers are stopped in the innerwipe position.
3. Push the wiper blade clip button IN and remove wiper blade from wiper arm.

To Install:

1. Insert wiper arm hook through opening in wiper blade.
2. Place wiper blade pivot in the inside radius of wiper arm hook.
3. Pull on wiper blade pivot into hook until it locks into place.
4. Check wipers for proper operation.

Wiper Arm To Remove:
NOTE: Mark position of wiper blade on windshield to ensure proper position upon reassembly.

1. Remove washer hose.
2. Lift wiper arm from windshield and use a screwdriver to disengage retaining latch.
3. Remove wiper arm from shaft.

To Install:

1. Place wiper arm on shaft so that wiper arm aligns with marks placed on windshield.
2. Press arm assembly on shaft and push retaining latch IN.
3. Connect washer hose.
4. Remove windshield markings and check wipers for proper operation.

You don't mount the blade inserts to the safety insert. The safety insert is only for storage so that someone doesn't cut themselves. Remove the safety insert then install your selected the blade/insert you wish. When finished place the safety insert back in for - safety.

1. Make sure the side lock is unlocked.
2. Push the thumb tab all the way to the front of the blade handle.
3. Insert the blade in the opening, you may notice two notches on the top side of the blade.
4. Press the small blade release button as you slide the blade into the knife. You may have to jiggle up and down to get the two notches on the blade fully into the handle.

If properly inserted, the exposed area of the blade should look very close to an equilateral triangle.

make sure both notches of the blade are inside the handle. They notch into the thumb lever.

good luck

Adjustments
LARGEHEXWRENCH
TO REPLACeTHE BLADE
See Figures 43 - 45.
 Unplug the saw.
 Lower the saw blade, raise the blade guard, and remove the throat plate.
 Make sure the bevel locking lever is securely pushed to the left. Raise the saw blade to its full height by turning the height/bevel adjusting handwheel clockwise.
 Using the smaller hex wrench, insert the flat open end into the flats on the arbor shaft.
 Insert the closed end of the larger hex wrench over the hex nut. Holding both wrenches firmly, pull the larger wrench forward to the front of the machine. Make sure the blade nut is securely tightened. Do not overtighten.
Check all clearances for free blade rotation. See To Set the Scale to the Blade. In cutting operations, the scale will be set to the side of the blade where the cut will be measured and made.
To replace the blade with an accessory blade, follow the instructions provided with the accessory.
To install a standard blade:
 Place the new blade on the arbor shaft (the teeth must point down toward the front of the saw to work properly).
 Place the blade washer and the blade nut over the blade arbor. Be sure the dome side of the blade washer faces out from the blade and that all items are snug against the arbor housing. Tighten securely.
SMALLHEXWRENCH
Fig. 43
Blade
Bladewasher
arbor shaft
Bladenut
Fig. 44
BLADEGUARD
THROATPLATE
spreader
BLADE
Fig. 4535
ADJUSTMENTS
 Rotate the blade by hand to make sure it turns freely.
 Lower the saw blade and reinstall the throat plate.
NOTE: Securely tighten throat plate screws. Do not allow the throat plate to bow up above the table surface.

1. REMOVE RR WIPER BLADE

1. Raise the rear wiper blade to the position as shown in the illustration where the meshing of the claw disengages with a clicking sound. NOTE: Be careful not to break the claw.
2. Pull straight the rear wiper blade to vehicle's left from the wiper arm. NOTE: Do not fold the rear wiper arm with the rear wiper blade removed from it.

1. REMOVE REAR WIPER RUBBER

1. Place the rear wiper with the rear end of the rubber protruded from the blade stopper as shown in the illustration. NOTE: Do not pull out the wiper rubber forcibly, as the backing plates will become deformed or the blade claws will become damaged. HINT: The rubber can be easily pulled out by pushing the middle area of the blade.

1. INSTALL REAR WIPER RUBBER

1. Install the 2 wiper rubber backing plates to the rear wiper rubber. NOTE: Be careful to observe and keep direction of curvature for correct replacement.

b. Insert the rear wiper rubber from the claw of the middle of the rear wiper blade into the rear end position.

c. After passing the rear wiper rubber through the rear end side claw, protrude it from the rear end stopper and pass it through the front tip side claw.