Powermatic PM15 operating instructions Operation, Interlock Switch, Caster Lock, Kinds of Warp

Page 15

Interlock Switch

This machine has an interlocking safety switch located under the hood. The hood must be in the “down” position in order for the planer motor to engage.

If the hood is lifted while the machine is operating, the motor will cut off. The interlock switch must be adjusted so that it will turn off the motor if the hood is raised more than 11/16”.

Do not operate the planer unless the interlock switch is working properly.

Caster Lock

The casters should be locked before operating the planer-molder. The foot pedal on the right side of the machine can be pressed down to lock the casters as shown in Figure 19.

Operation

Kinds of Warp

Warp is a variation from a plane or true surface. Warping of wood is caused by uneven shrinkage during the drying process. Shrinkage is not the same in all directions of the grain and due to the different grain direction in pieces of lumber, different types of warpage can occur.

Cup or warped across width

With a board that is cupped you would first plane the top flat and then turn the board over and plane the bottom flat. See Figure 20. If possible, ripping the board down the middle of the cup would eliminate a large amount of waste in planing to thickness.

Bow or warped lengthwise

The feed rollers on a thickness planer are going to flatten a bowed board down against the planer bed and thickness plane the board as if it had little or no warpage. Then after the board is removed from the planer it will be planed to thickness but still have its original bow. See Figure 21. The only way to remove the bow from a board is to joint the board flat on one side on a jointer. Then the board can be thickness planed.

Twist or twisted lengthwise

Twisted lumber is the most difficult warpage to plane to thickness. In some cases the twisting is so great that planing to thickness is impossible. In this case you might saw the board into smaller pieces and see if planing to thickness can be achieved.

15

Figure 19

Figure 20

Figure 21

Image 15
Contents Part No. M-0460264 Walter Meier Manufacturing IncMore Information Warranty and ServiceTable of Contents Page Page Turn = 1/16 Introduction SpecificationsInstallation and Assembly Contents of the Shipping ContainerUnpacking Installing Dust Chute Installing HandwheelElectrical Connections Belt Tension AdjustmentsPlaner Knife Replacement Extension CordsSharpening Knives Anti-Kickback Fingers Depth of CutFeed Rate Planer’s Feed SystemInfeed Roller Chipbreaker Leveling Cutterhead with Bed Kinds of Warp Interlock SwitchOperation Caster LockThickness Planing Steps Planing to Desired ThicknessOptional Bedboard and Guide Introduction to MoldingPlaning for Finish Pattern KnivesHomemade Guide Set-Up for Edge Molding Installing Single Pattern KnivesHomemade Bedboard Homemade FeatherboardPattern Knife Clearance Installing Three-Knife SetFace Molding with pattern knives Installing BedboardCommon Molding Applications Bedboard must be installed on the planer when edge planingEdge Molding with pattern knives Edge PlaningRabbet Lubrication MaintenanceProbable Cause Remedy TroubleOne cause of overload trips which is Trouble Probable Cause Remedy Troubleshooting Operating Problems Replacement Parts Index No Description Size Qty Parts List Base AssemblyBase Assembly Index No. Part No Description Size Qty Parts List Gearbox AssemblyGearbox Assembly Parts List Stand Assembly Stand Assembly Parts List Cutterhead, Hood and Table Assembly PM15-HP Cutterhead, Hood and Table Assembly Electrical Connections Page New Sanford Road LaVergne, Tennessee Phone
Related manuals
Manual 6 pages 40.8 Kb