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Porter Cable
Power Hammer

Model # 639 Official Porter Cable rotary hammer

Here are the diagrams and repair parts for Official Porter Cable 639 rotary hammer, 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 106 parts  |
Washer 1257893
#172

Rotary hammer diagram

Washer

Part #1257893

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

Ball 1257750
#124

Rotary hammer diagram

Ball

Part #1257750

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

Washer 1257748
#122

Rotary hammer diagram

Washer

Part #1257748

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

Spring Ring 1257752
#126

Rotary hammer diagram

Spring ring

Part #1257752

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

Washer 1257777
#151

Rotary hammer diagram

Washer

Part #1257777

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

Piston 1257761
#135

Rotary hammer diagram

Piston

Part #1257761

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

Gasket 1257763
#137

Rotary hammer diagram

Gasket

Part #1257763

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

Seal Ring 1257749
#123

Rotary hammer diagram

Seal ring

Part #1257749

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

Brush 1257652
#3

Rotary hammer diagram

Brush

Part #1257652

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

Gear Housing 1257723
#53

Rotary hammer diagram

Gear housing

Part #1257723

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

Symptoms for treadmills

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor...

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing...

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller...

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor...

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console...

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board...

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co...

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How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the...

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Repair difficulty
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How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'...

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15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the...

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Repair difficulty
Time required
30 minutes or less

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