Question about Black & Decker 19" Electric Lawnhog Mulching Mower

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I cannot stop electric motor and drive shaft and blade from turning when trying to take blade retaining nut off to sharpen blade.

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The safest way to do this is to use a blade holder that you may be able to purchase from a parts store. It clamps to the side of your mower deck and keeps the blade from turning.

Posted on Oct 05, 2010

  • Paul Truyens
    Paul Truyens May 15, 2014

    I have the same problem. I have the blade held in place but the shaft turns with the nut.


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1 Answer

Why isn't the center blade on a john deere LX178

Of course with everything off, reach under the deck and turn the center blade by hand. If:
1. the blade turns by itself and nothing else moves, you need to tighten the retaining bolt more.
2. the blade, retaining bolt and drive shaft turn, check to see if the pulley above it is turning.
a. If the pulley turns freely check that the drive belt is going around it to power the blade.
b. If the blade turns with the drive shaft and the pulley doesn't, check that the pulley is still properly connected to the blade shaft. Some have a key in them that can split, others just have a bolt on top holding them tightly on the shaft.

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I have a B&D electric mower M300. I need to take

you need to use some plyers and hold the shaft with them

May 31, 2011 | Craftsman Garden

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Shaft turns while trying to remove blade on B&D MM875 elec. mower

Here's the scoop on the MM875: it has a plastic piece called a "blade insulator" (part # 241381-01) that "locks" the shaft to the blade, so that you can remove the nut by stopping or blocking the blade. If it has been damaged or stripped out, then stopping the blade won't do anything. However, the metal spacer directly under the nut IS still locked to the shaft (because of its shape), so you can use a pipe wrench or something to hold that in place and unscrew the nut. You might even be able to get someone in a home improvement store to do this for you. But you will still need to replace the insulator, which is only a few dollars.

Jul 22, 2010 | Black & Decker 19" Electric Lawnhog...

1 Answer

Had my #10 blade sharpened and now have several probs w blade and

You may know the first part of this, but...
Ordinarily, the blades are removed and replaced as follows:
There is a small gun-metal colored bar at the very rear, just below the back of the blade. It pushes inward, in the direction of the blade. Push it firmly in and pull up on the teeth of the blade. It should pop upward. You can then remove the blade from the tongue that it sits upon. When you want to put it back, slide the blade back on the tongue, then, WITH THE MOTOR TURNED ON, push the blade down to its seated position. It will click into place.
In your case the retaining clip may have broken off. With the blade removed, push that same gun metal colored bar in. You should see the other end of it move in unison just behind the nylon cog that moves the blades when they are installed. Check the tip of that other end to see that the "turned back on itself" rounded portion is there. That's what holds the blade on. If it is missing, you will have to replace the part (the tongue part has to be removed to do so since the retaining clip part is under it, with a small spring holding it in place). A new one can be obtained, I think, at:

You say that you had the blade sharpened. By someone who knew what he or she was doing, I hope. It is possible that whoever sharpened it, reassembled it improperly so that the area where the retaining clip connects is too far toward the rear of the blade (opposite the teeth) and the clip is unable to click over it into place. If you look at the back of the blade, you will see the small slot just about in the center where the nylon drive cog fits to move the blade back and forth when it is mounted. Just below that there is a plate with two tabs extending toward the teeth. The part of that plate (toward the teeth) that has a slight indentation is where the retaining clip clicks into place. If it is not doing so, then either the clip is broken or the blades are not assembled properly. You can try (careful blade assembly is tricky in regard to getting them straight) to loosen the two screws and very carefully move that plate enough (very little should be required) toward the teeth so that the clip will hold. I would make very sure that the clip is not broken before doing that.

Hope this is helpful to you.

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1 Answer

How do I remove the windshield wiper motor from a Ford F-250?

2002 Ford F-250 Windshield Wiper Motor Removal & Installation 1. Turn the ignition switch to the ON position. Turn the ignition switch ON until the wiper blades are straight up, then turn the ignition switch OFF. 2. Disconnect the negative battery cable. 3. Remove the right-hand and left-hand windshield wiper arm and blade assemblies. 4. Remove the cowl top vent panels. 5. Detach the electrical hardness connector at the windshield wiper motor assembly. 6. Remove 3 wiper motor (module assembly) retaining bolts and remove the module assembly from the vehicle. 7. Remove the wiper linkage retaining bolt and remove the linkage from the wiper motor. 8. Remove 3 retaining nuts and remove the windshield wiper motor To install; 9. Place the windshield wiper motor in position and install 3 retaining nuts. Tighten to 10-12 ft. lbs. (12-17 Nm). 10. Connect the wiper linkage to the windshield wiper motor and install the retaining bolt. Tighten the bolts to 14 ft. lbs. (20 Nm). 11. Place the wiper motor (module assembly) in position and install 3 retaining bolts. Tighten the bolts to 6 ft. lbs. (9Nm). 12. Install the electrical hardness connector to the windshield wiper motor. 13. Connect the negative battery cable. 14. Allow the windshield wiper motor to cycle several times while checking for proper wiper motor operation. 15. Turn the windshield wiper motor to the OFF position to park the wiper motor in the park position. 16. Install the cowl top vent panels. 17. Install the wiper arm and blade assemblies. Install the retaining nuts and tighten to 22-29 ft. lbs. (30-40 Nm). 18. Connect the negative battery cable. 19. Check the windshield wiper motor for proper operation and the wiper arms for adjustment.

Nov 09, 2009 | 2002 Ford E250

1 Answer

Blade is loose, turning nut just turns motor.

put a screwdriver in the bottom of the motor that should do it

Jul 26, 2009 | Electric Lawn Mower

1 Answer

Where is the windshield washer relay located

They (the wiper motor and mechanism) are underneath the cowl vent screen.

To replace the motor and mechanism:
1: Turn the ignition to the on position with the wipers at low speed. When the arms are point straight up, turn it off.

2: Use a small screwdriver and pry the plastic caps from the wiper arm mounting ends.

3: Disconnect negative battery terminal

4: Remove the small retaining nup from each wiper arm, then the arms.

5: Remove the cowl screen by turning the eight plastic retainers 1/4 turn counterclockwise. Next remove the six screen retaining clips. If it's a 2000 or later, remove four bolts that secure the arm monting bar so that you can access the wiper motor.

6: Disconnect the electical connections and remove the four screws that secure the motor and mechanism to the cowl, and take out the motor-mechanism assembly.

7: The drive mechanism isn't serviceable, but the motor can be replaced. Remove the operating arm nut from the motor shaft, and remove the three screws that hold the motor to the drive mechanism.

8: Reinstall the wiper mechanism into the cowl and connect the electrical connectors. (Before reinstalling the wiper arms and blades, turn the ignition to the on position and turn the wiper switch to either LO or HI, then turn the wiper switch Off. This lets the motor cycle to the park position thus avoiding damage to the arms and drive mechanism).

9: Install the wiper pivot arms, ensuring the blade tips align with the park reference mark at the base of the windshield.

10: Ensure that your wiper blade is fully seated on the wiper arm before operation the wipers.

11: Finish up the reverse way you began.

Jun 24, 2009 | 1999 Ford Taurus

1 Answer

The wiper blade connection has released from the wiper blade motor bar that controls the wipers movement. You can hear the motor working but the arms have been disengaged.

please rate as fixya if this is what you need. Mounting Arm and Pivot Shaft —Windshield Wiper Removal
NOTE: The windshield wiper pivot arms (17526) must be in the highest position to remove them.
  1. Turn the ignition switch (11572) to the on position.
  1. Turn the windshield wiper (17500) on.
  1. Stop the windshield wiper pivot arms at the highest position by turning the ignition switch off.
  1. Remove the windshield wiper pivot arm.
    1. Remove the pivot arm nut cover.
    1. Remove the nut.
    1. Remove the windshield wiper pivot arm.

  1. Raise and support the hood (16612).
  1. Remove the cowl grille seal.
NOTE: The two cowl grilles overlap at the center. The LH cowl grille must be removed first.
  1. Remove the LH cowl grille.
    1. Remove the screw cover.
    1. Remove the screws.
    1. Remove the clips.
    1. Remove the pin-type retainer.
    1. Remove the LH cowl grille.
  1. Remove the RH cowl grille.
    1. Remove the screw cover.
    1. Remove the screws.
    1. Remove the clips.
    1. Remove the pin-type retainer.
    1. Remove the RH cowl grille.
  1. Remove the mounting arm and pivot shaft.
    1. Disconnect the electrical connector.
    1. Remove the bolts.
    1. Remove the mounting arm and pivot shaft.

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1 Answer

Motor replacement

there is a half in square drive recess in blower wheel insert half in drive into it ..usually a 7/16 open end wrench will hold motor shaft but if not use adjutable wrench to hold motor shaft at belt end turn blower clockwise ..if still can get loose use service tech method chisel and hammer ..if motor has overheated the heat will almost weld blower wheel to motor shaft the way some parts houses may sell the switch as a separate part

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