Powermatic 221 planer manual

Loosen set screw 3 that locks adjusting nut 4 in bed. Turn nut 4 to the right or left to raise or lower the bed in the desired amount. The bed rollers 2 Fig. The height of the rollers in relation to table surface is indicated by a graduated dial and a pointer on the "quickset" handle. If the table roller height does not correspond with height indicator scale adjustment can be made by: Loosening the set screws 1 Fig.

Set the indicator pointer at zero on the gauge and turn adjusting screws until bed rollers are level with the planer table.

Tighten the set screws in adjusting arms. To plane rough sawn lumber, the indicator should be set on. For medium rough,. Set rollers high enough that the lumber will feed through the machine without hesitation. The planer bed thrust screws are powered by the gears and hand wheel arrangement and do not require any adjustment other than keeping gears in proper mesh and tight on hand wheel drive shaft.

The Powermatic Model Planer uses two feed rollers. The sectional infeed roller 6 Fig. The rollers are mounted on sealed ball bearings that require no lubrication. The rollers are mounted in floating type bearing boxings that are held down with pressure springs on top that can be regulated with adjusting screw 10 Fig. The height adjustment of the feed rollers from the bed are adjusted with set screws 7 Fig. A Jackscrew type gauge or a square block should be used to set the rollers.

The feed roller pressure springs should be adjusted by trial and error method to determine necessary pressure for proper feeding. Too much pressure on infeed corrugated roller will leave markings on material if light cuts are being made.

Rough sawed and green material will require more pressure than smooth dry material. Adjust to where material will feed steadily without hesitation or slippage of rollers. The chip breaker 9 Fig. The pressure bar is adjusted with adjusting screws 11 Fig. The pressure bar should be set the same height as the arc of the cutterhead knife so there will be a slight pressure on the board as it leaves the cutterhead.

If the pressure bar is too high it will cause a dip in the end of the board. If it is too low the board will stick. The spring pressure on the bar is regulated with the lock nuts on the adjusting screws. To set the indicator on the material thickness scale to indicate properly after changing knives, loosen the screw in the planer bed which holds the brass pointer and set to the thickness the material measures when planed or fed through the machine.

The hole which mounts the brass pointer is slotted and will permit proper adjustment. The cutterhead is equipped with three knives held in position with the lock shims and set screws.

Knives must be adjusted to set evenly and level in the cutterhead. Before removing knives from cutterhead, the knife gauge should be to knives in order that the height of the knives will not be changed relative to the other parts of the machine.

The feed rollers, chipbreaker and hold down bar are adjusted to the arc of the knife cut, and if the height of the knives are raised or lowered, the feed rollers, chipbreaker, and hold down bar should be adjusted accordingly. Tighten the lock shim set screw in each end just enough to hold knife firmly. Using a hard block of wood the knife can be lightly tapped into slot to proper setting. The feeler type gauge furnished with the machine will permit setting knives accurately, however, a dial type indicator gauge is recommended if finest finish is required.

Improper knife setting will cause vibration and leave knife marks on finished material. Knives should be kept sharp. The knives do all of the work and they will not do satisfactory work if they are dull. The set of knives are matched and balanced at the factory.

When the knives are sharpened, care should be taken that they are kept in balance. Powermatic Model Planer page reference. This site proudly build with Site Build It! Copyright - Old-Woodworking-Tools. Powermatic Model Planer Operating Instructions: Powermatic Model Planer Bed: The planer bed mounts in the main frame panels and is held rigid by the shims and adjusting screws located in front of machine. Planer Bed Handwheel Drive Assembly: The planer bed thrust screws are powered by the gears and hand wheel arrangement and do not require any adjustment other than keeping gears in proper mesh and tight on hand wheel drive shaft.

Pressure Bar: The pressure bar is adjusted with adjusting screws 11 Fig. Material Thickness Gauge: To set the indicator on the material thickness scale to indicate properly after changing knives, loosen the screw in the planer bed which holds the brass pointer and set to the thickness the material measures when planed or fed through the machine. Cutterhead: The cutterhead is equipped with three knives held in position with the lock shims and set screws.

Knife Care: Knives should be kept sharp. It wasn't limited to just drilling holes. Craftsman Woodworking tools at Old-Woodworking-Tools. Craftsman Tool Manuals Craftsman tool manuals and catalogs that can be downloaded for free. On this page you'll find photos, resources and information about some of those woodworking machines. About Us. Discussion Forum. Machine Info. Photo Index.

Support Vintage Machinery. Submitting Content. Contact Us. Discussion FAQ. The Shop. Projects Forum. For Sale Forum. Manufacturer's Index. Machine Registry. Photo Index Home. Index by Manufacturer. Index by Machine Type. Recent Submissions.

Submit New Photo. Classified Ads. Vintage Machinery Store. Workshop Calculations. Patent Search. Book Store. Member Profiles. Highland Woodworking.