Grizzly G0505 instruction manual Wood Types

Page 17

Wood Types

 

Wood Characteristics

 

 

 

 

 

 

The species of wood, as well as its condition, has a dramatic effect on the depth of cut the planer can effectively take with each pass. The harder the wood (as illustrated by its shear strength), the shallower the depth of cut should be.

Commonly used hardwoods and their associated shear strengths are illustrated in Figure 8.

 

 

 

 

 

Type

Shear (PSI)

 

 

 

 

 

 

Black Locust

 

2,480

 

 

 

 

 

 

 

 

 

 

 

 

 

Sugar Maple

 

2,330

 

 

Increasing Difficulty

 

Pecan Hickory

2,080

 

 

 

American Elm

1,510

 

 

 

 

 

 

White Oak

 

2,000

 

 

 

 

 

 

White Ash

 

1,950

 

 

 

 

 

 

Black Cherry

 

1,700

 

 

 

 

 

 

Black Walnut

 

1,370

 

 

 

 

 

 

 

 

 

 

 

 

 

Red Alder

 

1,080

 

 

 

 

 

 

 

 

 

 

 

 

 

Basswood

 

980

 

 

 

 

 

 

Cottonwood

 

930

 

 

 

 

 

 

 

 

 

 

Figure 8. Common hardwood shear strengths.

Similarly, common softwood shear strengths are displayed in Figure 9.

 

 

 

 

 

Type

Shear (PSI)

 

 

 

 

 

 

Western Larch

1,410

 

 

 

 

 

 

 

 

 

 

 

 

Tamarack

 

1,280

 

 

Increasing Difficulty

 

Douglas Fir

 

1,160

 

 

 

Cypress

 

1,000

 

 

 

 

 

 

Alaska Cedar

 

1,130

 

 

 

 

 

 

Sitka Spruce

 

1,150

 

 

 

 

 

 

Sugar Pine

 

1,050

 

 

 

 

 

 

Redwood (OG)

940

 

 

 

 

 

 

 

 

 

 

 

 

Red Cedar

 

860

 

 

 

 

 

 

 

 

 

 

 

 

 

White Pine

 

850

 

 

 

 

 

 

Balsam Fir

 

710

 

 

 

 

 

 

 

 

 

 

Figure 9. Common softwood shear strengths.

Below is a list of wood characteristics you may encounter when planing. The following descrip- tions of defects will give you some possible answers to problems you may encounter while planing different materials. Possible solutions fol- low the descriptions.

Chipped Grain

Problem—Usually a result of cutting against the grain, planing lumber with knots or excessive amount of cross grain, or using dull knives.

Solution—Decrease depth of cuts. Inspect your lumber and determine if its grain pattern is caus- ing the problem. If the lumber does not show sub- stantial crossgrain, sharpen your knives.

Fuzzy Grain

Problem—Usually caused by surfacing lumber with too high of a moisture content. Sometimes fuzzy grain is an unavoidable characteristic of some woods, such as basswood. Fuzzy grain can also be caused by dull knives.

Solution—Check the lumber with a moisture meter. If moisture is greater than 20%, sticker the lumber and allow to dry. Otherwise, inspect the knife condition.

Glossy Surface

Problem—Usually caused by dull knives or too slow of a feed speed. Surface gloss will usually be accompanied by overheating. Often, lumber will be scorched and damage to knives will occur. Solution—Use sharp knives and increase the feed speed.

Snipe

Problem—Occurs when board ends have more material removed than the rest of the board. Usually caused when the workpiece is not prop- erly supported as it goes through the machine. However, a small amount of snipe is inevitable. Solution—The best way to deal with snipe is by planing lumber longer than your intended work length and then cutting off the excess after plan- ing is completed.

 

 

 

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G0505 1212" Lean & Mean Portable Planer

Image 17
Contents 121⁄2 Lean & Mean Portable Planer Page Table Of Contents Safety Instructions For Power Tools Safety25ft 50ft 100ft Length AMP RatingAdditional Safety Instructions For Portable Planer Introduction 110V Operation Circuit RequirementsGrounding Extension CordsIdentification Controls & FeaturesPiece Inventory SET UPUnpacking Hardware Recognition Chart Site Considerations Clean UpTo mount the planer Mounting to Bench Handle AssemblyTo attach the handle assembly To secure the chip deflector Chip Deflector Test RunOperations ON/OFF SwitchReset Button Planing Tips Depth Of CutWood Types Chip Marks or Indentations Wavy SurfacePitch & Glue Build-up Knife Sharpening MaintenanceGeneral To replace the belt MotorBeltLubrication To clean the feed rollersFeed Rollers Knife Setting Service AdjustmentsIf adjustment is necessary, proceed as fol- lows Extension WingsTo install and adjust the knives Reference Info Machine Data Sheet G0505 12 1⁄ 2 Lean & Mean Portable Planer Description G0505 121⁄2 Lean & Mean Portable Planer Motor Assembly G0505 12 1⁄ 2 Lean & Mean Portable Planer Base Assembly Warranty and Returns Warranty Card BOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCCall Today For a Free Full Color Catalog