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Milwaukee
Power Saw

Model # 6378 Official Milwaukee 8-1/4" worm drive saw

Here are the diagrams and repair parts for Official Milwaukee 6378 8-1/4" worm drive saw, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 89 parts  |
Carriage Bolt 06-10-3195
#26

8-1/4" worm drive saw diagram

Carriage bolt

Part #06-10-3195

The manufacturer no longer makes this part, and there's no substitute part

Nut 8pk 06-57-5050
#45

8-1/4" worm drive saw diagram

Nut 8pk

Part #06-57-5050

The manufacturer no longer makes this part, and there's no substitute part

Bearing 02-04-0850
#4

8-1/4" worm drive saw diagram

Bearing

Part #02-04-0850

The manufacturer no longer makes this part, and there's no substitute part

Screw 06-82-7252
#70

8-1/4" worm drive saw diagram

Screw

Part #06-82-7252

The manufacturer no longer makes this part, and there's no substitute part

Spindle 38-50-5191
#61

8-1/4" worm drive saw diagram

Spindle

Part #38-50-5191

The manufacturer no longer makes this part, and there's no substitute part

8-1/4" Saw Guard Cover 25-20-4737
#57

8-1/4" worm drive saw diagram

8-1/4" saw guard cover

Part #25-20-4737

The manufacturer no longer makes this part, and there's no substitute part

1-1/4 Oz. Type "g" Grease No. 49-08-4140, In Grease Cavity. 1-1/2 Oz. Type 'b" Grease, No. 49-08-0600, To Build Up Wall Of Grease Around Grease Cavity. N/P
#72

8-1/4" worm drive saw diagram

1-1/4 oz. type "g" grease no. 49-08-4140, in grease cavity. 1-1/2 oz. type 'b" grease, no. 49-08-0600, to build up wall of grease around grease cavity.

Part #N/P

The manufacturer no longer makes this part, and there's no substitute part

Bracket 42-36-1220
#5

8-1/4" worm drive saw diagram

Bracket

Part #42-36-1220

The manufacturer no longer makes this part, and there's no substitute part

Adj Nut 44-40-0460
#21

8-1/4" worm drive saw diagram

Adj nut

Part #44-40-0460

The manufacturer no longer makes this part, and there's no substitute part

Ring Clip 34-60-2330
#23

8-1/4" worm drive saw diagram

Ring clip

Part #34-60-2330

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for band saws

Choose a symptom to see related band saw repairs.

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Why won't my band saw start?

Main causes: lack of electrical power, broken power cord, bad on/off switch, faulty drive motor…

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Why does my band saw blade slip off the wheel?

Main causes: damaged rubber tire, worn wheel bearings, loose blade tension, dull saw blade…

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Why won't my my band saw's blade move?

Main causes: broken saw blade, bad drive belt, damaged rubber tire…

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Why is my band saw cutting slowly?

Main causes: dull blade, using the wrong type of blade, weak drive motor…

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Why does my band saw make inaccurate bevel cuts?

Main causes: angle indicator needs adjustment, dull blade…

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Why won't my band saw cut straight?

Main causes: dull blade, improper feeding, loose blade tension, not using a work piece guide…

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Why does my band saw make ragged cuts?

Main causes: dull blade, using the wrong type of blade, feeding work piece to quickly, loose blade tension…

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Repair guides for band saws

These step-by-step repair guides will help you safely fix what’s broken on your band saw.

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How to replace a band saw blade

How to replace a band saw blade

If the saw blade is dull or damaged and isn't cutting cleanly, replace the blade following these steps.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a band saw drive belt

How to replace a band saw drive belt

If the motor runs but the blade doesn't move, it could be that the drive belt is broken. Here's how to replace it.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a band saw on-off switch

How to replace a band saw on-off switch

If the switch won't turn the band saw on or off, it could be defective. Replace the switch, using these steps.…

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Repair difficulty
Time required
 15 minutes or less

Articles and videos for band saws

Use the advice and tips in these articles and videos to get the most out of your band saw.

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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How to tell if a fuse is blown

Learn how to tell whether a fuse is blown…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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