MAINTENANCE

BLADE REPLACEMENT

See Figures 21 - 23.

The planer is equipped with replaceable/disposable double- edged cutter blades attached to a rotating cutterhead. Worn cutter blades will affect cutting accuracy and may produce ridges on the workpiece.

Unplug the planer.

Lower the cutterhead assembly.

From the back of the planer, remove the two dust hood knobs holding the dust hood in place.

Remove the dust hood.

NOTE: The cutterhead lock will engage when the head is rotated. Do not operate thickness planer without the dust hood in place or the planer will be damaged.

If necessary, rotate the cutterhead until it locks.

Note: Rotating the cutterhead is accomplished from beneath the cutterhead assembly. Using the planer table as a mirror, touch the threaded spindle where it attaches to the planer table. Carefully move your fingers up until you touch the drive belt. Turn the drive belt with your fingers until the cutterhead locks in place.

Carefully loosen, but do not remove, the blade locking screws.

Using the magnetic blade tool, remove the blade by placing the blade tool on the blade, lifting slightly, then pulling the blade straight out.

If you are changing to the second side of the blade, rotate the blade “end for end” keeping the same flat side down. This correctly positions the blade for reinstallation.

Using the magnetic blade tool, push the installed blade in firmly. Check that the blade edge is parallel to the cutterhead slot.

Securely retighten the blade locking screws.

To rotate the cutterhead to the next blade, hold down on the red cutterhead lock and rotate the cutterhead 120° as shown in figure 21.

Release the cutterhead lock and continue to rotate the cutterhead until it locks in place. This correctly positions the blade for removal.

Repeat the above steps for each blade.

Replace the dust hood.

Cutterhead

LOCK

drive

belt

Fig. 21

 

hex key

to

to

loosen

tighten

BLADE LOCKING

Screws

Fig. 22

MAGNETIC

blade

BLADE tool

Fig. 23

 

 

 

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RIDGID R4330 manual Blade Replacement, Drive Belt Hex key Loo sen Tighten