RIDGID R4331 Use and Care Manual download pdf (Page 13)

OPERATION

WARNING:

Do not allow familiarity with tools to make you

careless. Remember that a careless fraction of a

second is sufficient to inflict serious injury.

WARNING:

Always wear eye protection with side shields

marked to comply with ANSI Z87.1. Failure to do

so could result in objects being thrown into your

eyes, resulting in possible serious injury.

WARNING:

Do not use any attachments or accessories

not recommended by the manufacturer of this

tool. The use of attachments or accessories not

recommended can result in serious personal injury.

WARNING:

The use of this planer on materials not listed

could damage the planer and could cause serious

personal injury.

WARNING:

Never plane workpiece with loose knots or

foreign objects. Do not plane workpieces that are

severely bowed, twisted, or knotted. Cutter blades

can dull, chip, or break causing possible serious

personal injury.

WARNING:

Do not force feed the workpiece through the

machine. Let the planer apply the proper feed rate.

APPLICATIONS

You may use this tool for the purpose listed below:

Planing the surface of a piece of lumber.

THICKNESS PLANING

Thickness planing sizes workpiece to desired thickness while

creating a smooth, level surface. Thickness of each cut will

depend on type of wood (hardwood versus softwood), width

of workpiece, straightness, dryness, and grain composition.

Whenever working with a new type of wood, make thin test

cuts on a scrap piece of wood first to determine potential

problems with the workpiece.

PLANING TIPS

 Thickness planers work best if at least one side of the

workpiece has a flat surface. When both sides of a

workpiece are rough, use a surface planer or jointer first

to define the initial flat surface. Plane one side of the

workpiece then flip the workpiece and plane the surface

of the reverse side.

 Always plane both sides of a workpiece to reach the

desired thickness. This will leave the workpiece with

uniform moisture to prevent warp during the drying

process.

 When one end of the workpiece is thicker than the

opposite end by more than 1/8 in., make several cuts with

the planer starting with light planing cuts first. Remember,

light cuts create a finer finish than heavier cuts.

 Do not plane a workpiece less than 5/16 in. thick.

 Do not plane a workpiece less than 3/4 in. wide.

 Do not plane workpiece shorter than 14 in. long as this

will cause kickback.

 Do not plane more than one workpiece at a time.

 Do not lower the cutter head assembly lower than

5/16 in.

 Do not continuously use the planer set at the maximum

depth of cut (1/8 in.) or at full width of cut (13 in.).

Continuous use at maximum cutting capacities will

damage the motor.

 Worn cutter blades will affect cutting accuracy. Planing

with dull or nicked cutter blades may produce ridges or

rough workpiece surfaces.

 Gum and pitch on the cutter blades and feed rollers will

cause them to wear prematurely. Using a gum and pitch

remover to keep your cutter blades and feed rollers clean

will prolong their wear.

 Refer to the Maintenance section of this operator’s

manual for instructions on how to remove and replace

or turn the cutter blades.

NOTE: Cutter blades are double-edged and can be turned

once to the opposite, unused edge before replacement

is required. Cutter blades must ALWAYS be replaced as

a set.

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RIDGID R4331 Use and Care Manual Page 13

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