Craftsman 351.217040 Operator's Manual download pdf (Page 12)

REMOVING AND REPLACING BLADES

Refer to Figure 21, page 20.

CAUTION: Planer blades are extremely sharp. Use

leather gloves and exercise caution when replacing

blades.

WARNING: Disconnect planer from power source.

If the blades have been chipped or damaged, they must

be replaced. To replace blades:

• Remove chip chute (Key No 56).

• Remove chipbreaker cover (Key No. 54)

• Remove chip deflector plate (Key No. 47).

• Loosen gib screws (Key No. 7).

• Carefully remove blade.

• Thoroughly clean cutterhead slots, gibs, and gib

screws.

• Insert new or sharpened blades in cutterhead.

• Replace gib.

• Secure blade by tightening gib screws. See

"Adjusting Blade Height" page 9.

• Repeat the previous steps for the other blades.

SHARPENING BLADES

The blades can be honed individually by whetting them

with fine sharpening stone. Make sure oilstone is flat and

is not worn. To sharpen blades:

• Remove blades as described above.

• Partially cover stone with paper to protect the table

top.

• Position infeed table so stone will contact blade along

its beveled surface.

• Stroke the stone across blade from one side to other

while stone is also moving slightly in the direction of

feed.

• Make sure to do the same amount of strokes on each

blade.

If the blades are nicked they must be replaced or

reground. Never install unbalanced blades. Always

sharpen blades in sets of four.

NOTE: Many shops do not have capabilities to resurface

blades. Yellow pages should list "Sharpening Services" or

"Tool Grinding".

ADJUSTING BELT TENSION

Refer to Figures 21 and 22, pages 20 and 22.

WARNING: Disconnect planer from power source.

• Belt tension must be checked periodically. To check:

Remove pulley cover (Figure 21, Key No. 74).

• Adjust belt tension by pivoting motor mounting plate

(Figure 22, Key No. 54). Pivot plate by loosening hex

nuts on tension bolt (Figure 21, Key Nos. 33 and 57)

as required.

• Belt is properly tensioned when slight pressure

between thumb and index finger causes 1/2"deflection

of belt.

• Be sure to replace pulley cover.

LUBRICATION

Refer to Figure 20, page 18.

The planer gearbox has been filled with lubricating oil at

the factory. The gearbox oil should be changed each

2500 hours of operation. To change oil:

WARNING: Disconnect planer from power source.

• Remove chain cover and guards (Key Nos. 44, 46

and 48).

• Drain old gearbox oil by removing plug (Key No. 27)

at bottom of gearbox.

• Replace drain plug.

• Remove fill plug (Key No. 16) at top of gearbox.

• Fill gearbox with 50 or 60 weight gear oil (approxi-

mately 12 oz.).

• Fill until oil level is up to center of sight glass.

• Replace fill plug.

• Frequently lubricate all chains, leadscrews and

handwheel gears with industrial grease.

• Frequently lubricate all table and return rollers,

columns and bushings using SAE-30.

ANTI-KICKBACK PAWLS

Refer to Figure 21, page 20.

The anti-kickback pawls (Key No. 48) prevent the work-

piece from kicking back against the direction of feed.

The pawls must rotate freely to ensure safe operation of

the planer.

• Inspect the anti-kickback pawls daily for proper oper-

ation checking that the pawls rotate freely.

• Clean the pawls of all gum and chips as required to

ensure safe operation.

TABLE ROLLER ADJUSTMENT

Refer to Figures 14, 15 and 22, pages 13 and 22.

The table rollers (Key No. 2) are free-spinning rollers

that help reduce friction, making the planing operation

smoother.

The proper height of the table rollers is dependent upon

the hardness and surface finish of the workpiece:

• The roller height should be adjusted so that the

workpiece feeds smoothly through the planer but is

not damaged by the table rollers or by the feed

rollers.

• Rough cut wood requires the rollers to be adjusted a

little higher, while smooth finish wood requires the

rollers to be a little lower.

• For all workpiece materials and finishes the table

rollers should be positioned slightly above the table.

WARNING: Disconnect planer from power source.

• Table roller height is adjusted by loosening set

screws (Key No. 5) and rotating eccentric adjusters

(Key No. 4).

• Use roller gauge blocks provided to check roller

adjustment.

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Craftsman 351.217040 Operator's Manual Page 12

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