Replacing Timing Belt; General Maintenance - Craftsman 351.217890 Operator's Manual

• Repeat the procedure to replace the other blade.
• Remove the scrap wood and release blade guard.
• Make sure all the blade clamp screws are tight and
snug.
ADJUSTING BLADE GUARD
Refer to Figure 20.
CAUTION: Do not lubricate the pivot point of the blade
guard. Oil and lubricating products may contain chemi-
cals that can damage and/or destroy blade guard or
other plastic parts.
The blade guard needs adjustment or spring replace-
ment if it does not cover the cutterhead when released.
To adjust or replace spring:
• Lay the jointer/planer on the side so that the switch
faces up.
• Loosen and remove screws and bottom cover (Key
Nos. 64 and 65).
• Remove retaining ring (Key No. 45) with retaining
ring pliers.
• Slide out blade guard.
• If the spring is out of tension, it must be replaced.
Slide out spring from holes. Contact your nearest
Sears store or service center for replacement.
• Replace new spring so that the end of the spring is
inside the hole on the body.
• Position blade guard so that the other end of the
spring is inside th hole in the blade guard.
• Secure blade guard with retaining ring.
• Make sure blade guard functions appropriately.
REPLACING TIMING BELT
Refer to Figures 18, 19 and 20.
• Turn the switch to "OFF" position and unplug the tool
from power source.
• Lay the jointer/planer on the side so that the switch
faces up.
• Remove bolts and access cover (Key Nos. 25 and
44).
• Remove old timing belt by turning belt and maintain-
ing pressure.
Figure 18 - Removing Timing Belt
• Replace with new timing belt by maintaining inward
pressure outward.
• Replace access cover and bolts.
NOTE: Make sure that the full width of belt is on both
pulleys.
Replace
Figure 19- Replacing Timing Belt
GENERAL MAINTENANCE
Jointer/planer will operate best if it is kept in good oper-
ating condition. Keep unit adjusted as described in
"Operation."
• Do not allow gum and pitch to accumulate on the
tables, fence, blades and blade guard.
• Do not allow chips to accumulate on the underside
of the jointer/planer.
• Keep blades sharp (see "Sharpening Blades," page
9). Sometimes replacing blades is less expensive
than resurfacing them. Keeping a spare set of blades
on hand is recommended. Blades should always be
sharpened or replaced in sets of two.
LUBRICATION
WARNING: Make sure the switch is in the "OFF" posi-
tion and the tool is disconnected from the power
source.
WARNING: Do not at any time let brake fluids, gaso-
line, penetrating oils, etc. come in contact with plastic
parts. They contain chemicals that can damage and/or
destroy plastics.
• Motor and cutterhead bearings are sealed and need
no lubrication.
• Fence guide and elevation screws should be cleaned
of debris and greased as needed.
MACHINED SURFACES
• Surface of tables and fence must be kept smooth and
clean for easy work feed.
• Clean granite surfaces using a soft, damp cloth. Do
not use any waxes, oils or solvents on these sur-
faces.
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