How do you remove a keyway from a crankshaft?
Use a hammer and hit the pliers gently upward (or down- depending on the position of the keyway) and it should pop out. Of course this will only work if you have enough of the key sticking out from the crank to get a bite on it with the pliers.
What is a crankshaft Woodruff key?
Woodruff keys are semicircular shaped, such that, when installed, leave a protruding tab. The keyway in the shaft is a semi-circular pocket, the mating part, a longitudinal slot. They are used to improve the concentricity of the shaft and the mating part, which is critical for high speed operation.
What is a crankshaft key?
Crankshaft keys (also called woodruff keys) are semicircular shaped, removable keys that fit into matching keyways cut into the crankshaft leaving protruding tabs. These tabs mate with matching slots on the harmonic balancer flush upon the shaft.
How do you fix a worn out shaft?
Conventional Repair Methods of a Worn Shaft Worn and damaged shafts are conventionally repaired using a hot process (welding/machining or hot metal spray/machining). If not carefully controlled, these conventional methods will cause residual damage to the shaft. They also require the disassembly of the machine.
How do you clean a keyway?
Clean the lock, use pressurized air to blow all dust out of the keyway and shackle openings. Work the lubricant in by sliding the key in and out, open and close the lock multiple times to distribute the lubricant. Wipe excess lubricant off the lock, shackle and key. Let the lock air dry.
How do you free a frozen shaft?
Use a small wire brush to remove any excess rust on, and around, the bolt / nut. If possible, position the housing upright and saturate the bolt with Q10, which is a quick-acting, penetrating rust solvent and release agent. The Q10 will run down the shaft onto – and eventually into – the seized area.
How do you remove a stuck key?
Turn the key so that the keyway slot is in the exact position it was in when you inserted the key; this is the correct position for the pin tumblers to align in the cylinder. With your other hand, use the tip of your finger to push firmly on the face of the plug next to the key. Gently twist and pull the key out.
How do you get a stuck Woodruff key out?
Remove the Woodruff key.
- Try tapping down on one end of the key with a hammer and nail.
- Rapidly heating the key with a blowtorch and letting it cool can help loosen it.
- Remember that these keys are cheap and readily available online or at hardware and auto part stores, so causing damage to it may be necessary.
Why key is used in shaft?
A key is a piece of metal used to connect a rotating machine element to the shaft. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur. For a key to function properly, both the shaft and rotating elements (gear, pulley and coupling) must have a keyway and a keyseat.
Where is the shear key on a lawn mower?
Lawnmowers have a “shear” key, which prevents damage to the crankshaft, located in the hub of the flywheel or magneto. These often cause the engine to refuse to run but are easily replaced when you learn how to remove them. Thanks!
Can you remove a key from a lawn mower?
These keys are found in motorized devices such as lawn mowers, motorcycles, and cars and are held in place by a threaded fastener. By removing a key, you can remove and modify other parts of your vehicle or replace a bad key to improve performance. Apply penetrating oil.
How do you remove a Woodruff pulley key?
Remove the Woodruff key. On the freed pulley, locate the semicircular shape in the shaft. This is the key and it can be removed by gripping the sides with pliers or wedging one end with a screwdriver. The key may be stuck.
What’s the best way to remove a car key?
You can try tapping a nail on one end of the key, drilling into the center of the key and removing it with a nail, or even heating the key up with a blowtorch and letting it cool repeatedly to loosen it. Remember that damaging the key is a far better alternative than damaging the shaft or other part around the key. Select the right size.