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Shop Area: Woodshop

Tool: Jointer

Requires in-person training: Yes 

Procedure Number

UG 110-05, Rev. 1





Grizzly Industry 8” Heavy – Duty Jointer, Model G0858

  • 1 H.P. TEFC motors driving a three-knife cutter-head at 5000 R.P.M.
  • The knives are high speed steel, able to re-sharpen, and are adjusted by means of jack screws or springs, making blade setting quick and easy.

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  • Always wear approved safety glasses or face shield while operating the equipment.
  • Before operating equipment, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair.
  • Non-slip footwear or anti-skid floor strips are recommended.
  • Closed toe shoes are required when working in a shop area.
  • Do not wear gloves while operating the equipment.
  • Make all machine adjustments or maintenance with the machine unplugged from the power source.
  • Do not attempt to saw boards with loose knots or with nails or other foreign material, on its surface.
  • Proper clamping and holding the wood when cutting
  • Avoid Kickbacks. Do not stand directly at the end of either table. Position yourself just to the side of the infeed table to avoid possible kickbacks.
  • Always use a push block when jointing. Never place your hands directly over the cutterhead.
  • Never joint end grain.
  • Jointing against the grain is dangerous and could produce chatter or excessive chip out.
  • With the exception of rabbeting all operations must be performed with the guard in place. After rabbeting, be sure to replace the guard.



  • Max Jointing cut is 1/8”
  • Min length of cut 8”
  • Min width of board ½”
  • Min thickness of board ½”
  • Cut with grain
  • Edge Jointing
    • Set fence at 90 degrees, double check it now with a try square or machinist’s square.
    • Bowed boards – cut with concave side down facing the feed table (several passes may be required)
    • The purpose of edge jointing is to produce a finished, flat-edged surface that is suitable for joinery or finishing. It is also a necessary step prior to ripping stock to width on a table saw or radial arm saw.
    • If the board is bowed (curved), place the concave edge down on the infeed table.
    • Holding the stock firmly against the fence and table, feed the stock slowly and evenly over the cutterhead.
  • Beveling
    • Beveling an edge is essentially the same operation as edge jointing, except that the fence is tilted to a specified angle.
    • Achieving the full bevel will probably take several passes, each pass is to be less than 1/16”
    • Use extra care to ensure that the edge makes solid contact with the infeed and outfeed tables at all times.
    • Use a bevel gauge to determine the desired angle. Then use the bevel to transfer this angle to the fence.
    • Tilt the fence by loosening the lock handle and moving the fence to the desired angle.
    • Inspect stock for soundness and grain direction.
    • Slowly and evenly feed stock through the cutterhead. Make sure the face of the stock is completely flat against the fence and the edge is making solid contact on the infeed and outfeed tables.
  • Surface Planning
    • The purpose of planing on a jointer is to produce one flat surface. The theory behind this is that once you have one flat surface on a board, it can then more readily be milled to precise, final dimensions on a thickness planer. It is nearly impossible to surface plane both sides of a board effectively because the two surfaced sides will not be parallel to each other.
    • Cut with concave side down facing the feed table (several passes may be required), each pass is to be less than 1/16”.
    • Many passes will be necessary before your lumber has a flat surface.
    • If the stock has large or loose knots the workpiece can be dangerous to the operator, as well as destructive to equipment.
  • Rabbeting
    • A rabbet is a groove cut along the edge of a board. It is usually made to accept another board to form a strong, simple joint. Note: The maximum rabbet depth is 1⁄2".
    • Unplug the jointer and remove the cutterhead guard.
    • Loosen the fence and slide it to the rabbeting edge.
    • Set the fence to the desired width of the rabbet and lock down.
    • For small rabbets, remove the fence sliding locking lever and reinsert it in the rear fence hole on the fence base.
    • Inspect stock for soundness and grain direction.
    • Place stock on the infeed table and rabbet table with the edge to be rabbeted firmly against the fence.
    • Slowly and evenly feed stock through the cutterhead.
    • Using the 1⁄16" rule, it will take six passes to achieve a common 3⁄8" rabbet.
    • Replace the guard when finished with rabbeting operations.


Motor will not start.

1. Low voltage.

2. Open circuit in motor or loose connections.

1. Check power line for proper voltage.

2. Inspect all lead connections on motor for loose or open connections.

Motor will not start; fuses or circuit breakers blow.

1. Short circuit in line cord or plug.

2. Short circuit in motor or loose connections.

3. Incorrect fuses or circuit breakers in power line.

1. Inspect cord or plug for damaged insulation and shorted wires.

2. Inspect all connections on motor for loose or shorted terminals or worn insulation.

3. Install correct fuses or circuit breakers.

Motor overheats

1. Motor overloaded.

2. Air circulation through the motor restricted.

1. Reduce load on motor.

2. Clean out motor to provide normal air circulation.

Motor stalls (resulting in blown fuses or tripped circuit).

1. Short circuit in motor or loose connections.

2. Low voltage.

3. Incorrect fuses or circuit breakers in power line.

4. Motor overloaded.

1. Inspect connections on motor for loose or shorted terminals or worn insulation.

2 Correct the low voltage conditions.

3. Install correct fuses or circuit breakers.

4. Reduce load on motor.

Machine slows when operating.

1. Feed rate too high.

2. Depth of cut too great.

1. Feed workpiece slower.

2. Reduce depth of cut.

Loud, repetitious noise coming

from machine

1. Pulley setscrews or keys are missing or loose.

2. Motor fan is hitting the cover.

3. V-belt is defective

1. Inspect keys and setscrews. Replace or tighten if necessary.

2. Tighten fan or shim cover.

3. Replace V-belt. See Maintenance.

Machine is loud when cutting.

Overheats or bogs down in the cut.

1. Excessive depth of cut.

2. Knives are dull.

1. Decrease depth of cut.

2. Sharpen knives.


                                  END OF THE PROCEDURE