Craftsman 351.217040 Operator's Manual page 11

20"
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Gently lift and support the board when all of the
board has left the infeed roller.
When planing more than one board, butt the boards
together to reduce snipe.
POWER FEED RATE ADJUSTMENT
Refer to Figures 11 and 12.
Feed rate refers to rate at which wood is passed over
blades. The Craftsman 20" Planer is supplied with a
power feed system that automatically
feeds the wood
into the planer under the cutterhead.
The power feed system uses a 2 speed gearbox for
planing both hard and soft woods.
Low speed - 16 FPM (feet per minute) is for hard
wood, and high speed - 25 FPM is for soft wood.
Adjust power feed rate while planer is running.
To engage power feed at low speed (16 FPM), pull
engagement knob out away from planer (See Figure
12).
To engage high speed (25 FPM), push engagement
knob in all the way, towards planer (See Figure 12).
The power feed system can be disengaged by plac-
ing the engagement knob in the middle or neutral
position (See Figure 12).
NOTE: Only change feed rate while the machine is running,
Figure 11 - Power Feed Shift Knob
Power Feed
Shift Knob
FEED ROLLER
SPRING TENSION
ADJUSTMENT
Refer to Figures 13 and 21, page 20.
Infeed and outfeed rollers (Key Nos. 18 and 30) feed
the workpiece under the cutterhead.
Spring-loaded feed rollers press against workpiece to
prevent rollers from slipping.
The spring tension on feed rollers must be sufficient
enough to prevent rollers from slipping on workpiece,
but tension must not be so great that rollers cause
damage to the workpiece.
If feed rollers slip on workpiece, spring tension must
be increased (clockwise).
If workpiece is damaged by the feed rollers, the
spring tension must be decreased (counterclockwise).
Adjust the spring tension on the feed rollers by rotat-
ing the adjustment screws (Key No. 21) at each end
of the rollers.
Be sure to adjust screws so that the spring tension is
equal on each side of the roller.
Holes in the center of the adjustment screws are
used to lubricate the infeed and outfeed rollers.
Figure 13 - Roller Spring Tension
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25 FPM
0 FPM
16 FPM
_ _
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Figure 12 - Power Feed Rate Adjustment
WARNING:
Make certain that the unit is disconnected
from power source before servicing blades.
CHECKING
FOR WORN BLADES
The condition of the blades will affect the precision
of the cut. To check the condition of the blades,
observe the quality of cut which planer produces.
Dull blades will tear, rather than sever wood fibers,
and produce a fuzzy appearance.
A raised grain will occur when dull blades pound on
wood that has a varying density.
A raised edge will be produced where the blades
have been nicked.
11

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