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Carbon Brush Set

Part Number: 999-043

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Repair Instructions

Product Information

Manufacturer: Hitachi

Product Number: 999-043

Classification: Part

Weight: 0.03 lbs.

Also Known As: Motor Brush Set

Shipping: Ships Worldwide

Description:

This is a genuine Hitachi replacement part, they are sold as a pair (2).
Worn brushes are often the cause of a poorly running motor
• Replacing brushes can fix an intermittent motor
• New brushes can restore a motor’s electric braking

Carbon motor brushes are one of the most commonly replaced power tool components. Because carbon brushes are wear items, meaning that through friction and use they will gradually wear away, they will eventually require replacement. Worn brushes are common causes of intermittent motor function, reduced electric braking, and reduced motor power.

A worn out brush will often be worn down near the wire lead and may be cracked, pitted, or burned. When replacing carbon brushes, be sure to also inspect your armature for burns, cracks, or other damage which indicates a larger motor problem.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

Hitachi

CM4SB2 4" Dry-Cut Masonry Saw
WR22SA 3/4" Impact Wrench
VB16Y Grade 60 EVS Rebar Cutter / Bender
C8FB2 8-1/2" Twin Rail Sliding Compound Miter Saw
C8FB2 8-1/2" Twin Rail Sliding Compound Miter Saw
CR13V 10 Amp Reciprocating Saw
CR13V 10 Amp Reciprocating Saw
CR13VA Electric Variable Speed Reciprocating Saw
CR13VA Electric Variable Speed Reciprocating Saw
CR13VBY 12 Amp Low Vibration UVP Reciprocating Saw
CR13VBY 12 Amp Low Vibration UVP Reciprocating Saw
KM12VC 2-1/4HP Variable Speed Fixed/Plunge Base Router
M12VC 2-1/4HP Variable Speed Fixed Base Router
S18SB 7" Vertical Sander
SP18VAH 7" Disc Sander/Polisher
SP18VAH 7" Disc Sander/Polisher
SB8V2 3" x 21" Variable Speed Belt Sander
M12SC 2-1/4HP Single Speed Fixed Base Router
KM12SC 2-1/4HP Single Speed Fixed/Plunge Base Router
SB75 3" 2-speed Belt Sander
SB10T 2-speed Belt Sander
SP18SA 7" Polisher
SAT180 7" 2-Speed Disc Sander/Polisher
SAT180 7" 2-Speed Disc Sander/Polisher
S18SA 7" Sander
WH22 3/4" 10 Amp Square Drive Impact Wrench
C10FS Slide Compound Saw
C8FB Slide Compound Saw
C7SA Circular Saw
C7SA Circular Saw
C7SC Circular Saw
C7SC Circular Saw

Expand the 64 compatible machines

Products Compatibility

This item works with the following types of products:

• Circular Saw
• Demolition Hammer
• Drill
• Engine
• Grinder
• Hammer Drill
• Impact Wrench
• Miter Saw
• Planer
• Polisher
• Reciprocating Saw
• Rotary Hammer
• Router
• Sander
• Saw

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Repair Instructions: Submitted by Customers Like You

3 of 4 people found this instruction helpful

Tool Type:

Miter Saw

Parts Used:

Lock Off Button - 951895

Carbon Brush Set - 999-043

Switch - 998-839

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Pliers, Wrench Set

Hitachi compound miter saw wouldn't start

Remove the brush caps
Remove the old brushes
Installed the new brushes
Replace the brush caps
Removed the side cover
Disconnected the wires from the old switch
Connected the wires to the new switch
Replaced the side cover
Pressed in the lock button

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2 of 3 people found this instruction helpful

Tool Type:

Circular Saw

Parts Used:

Carbon Brush Set - 999-043

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver

Old brushes were arcing.

Unscrew the brush holder caps...removed the old brushes. .
Inserted the new ones and replaced the caps

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Tool Type:

Chop Saw

Parts Used:

Carbon Brush Set - 999-043

Sub Fence (B) Assy - 321-385

Felt - 996-226

Lower Guard - 322-452

Switch Handle (Left Side) - 321-382

Repair Difficulty:

Easy

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver

Handle for trigger button broke.

Changed the parts, simple.

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver

Brushes were sparking more than normal and power was reduced.

Removed worn brushes, replaced with new ones, problem solved! Runs like new again!

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver

The brushes were burned up

1 Unplug the saw
2 Unscrew the brush caps
3 Take the old brushes out
4 Took the new brushes out of the package and made the repair.
5 Plugged the saw back in.
Took all but 5 minutes for repair.

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Table Insert - 998-818

Felt - 996-226

Switch - 998-839

Safety and Sub Cover Set - 305-816

Repair Difficulty:

Easy

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Pliers, Nutdriver, Adjustable Wrench

Basically had a well used , well maintained Hitachi 8.5 " compound miter saw that needed new parts as the old ones were well worn.

Pretty easy disassembly and just made sure not to lose any parts, nuts, or screws. All went well and was done in about 45 minutes. Back up and running like new. Thanks for the great service and prompt deliver! We will use your company again, and again. Saves us a lot of time and money and keeps things running safe and efficient.

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver

Brushes

Unscrewed the brush caps with a screwdriver, removed the old brushes, put in the new brushes, screwed the brush caps back on.

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Guard (A) - 321-333

Lower Guard - 322-452

Table Insert - 319-549

Handle (R) - 321-380

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Screwdriver, Pliers, Wire cutter and wire nuts

Broken housings

Remove all the screws from the broken housing and electrical connections from the housing, then replace the new housing and put back the electrical connections. Thank you eReplacementParts.com for the new replacement parts, very easy job!!!

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Tool Type:

Miter Saw

Parts Used:

Carbon Brush Set - 999-043

Brush Holder - 960-685

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Allen wrench

Brushes corroded and fused to the brush holders

Unplugged, used penetrant to loosen then removed holding fasteners (that secured brush holders) pried out brush holders, sanded commutator, cleaned, installed new brush holders and their holding fasteners then brushes, then screwed end piece back on.
Note: The outer end of the brushes need to be aliened into their slots in the holders before you try to screw on the brush caps.
As the new brushes wear in you may get better braking. keep it clean and out of the weather and use the dust bag.

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Tool Type:

Circular Saw

Parts Used:

Carbon Brush Set - 999-043

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver

No power.

Removed the brush cover plate and installed the brush.

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Discussion

Discussion for Carbon Brush Set - ( 999-043 )

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Subject:

Comment:

Question: 10" Slide Miter Saw Hitachi

ululani

my saw comes on when i first press the trigger then it shuts off and doesn't come back on. My husband took it apart to check the cord connection and the trigger, it looks fine. He put it back together, we tried it, it did the same thing it went on, then shut off, never did go back on. if i change the switch will it work?

Reply: 10" Slide Miter Saw Hitachi

Tinkerdave

Hi ululani,
It sounds like your controller is whats bad. Hope this helps.Good luck.
Tinker

Reply: 10" Slide Miter Saw Hitachi

1006276

Did he check the brushes? $5 part and simple to change, only need a flat head screwdriver

Reviews

Average Rating (out of 5):

9 Reviews

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easy repair

arrived quickly and fit perfect

Guest - 11 days ago Verified Purchase

Their brushes. Easy to do.

Parts came quickly and the saw works as it should.

Guest - September 20, 2019 Verified Purchase

Worked as expected

It was in great condition and arrived quickly

Guest - July 9, 2019 Verified Purchase

Broken saw

I ordered two parts for my saw. Was easy to navigate the website and parts were shipped out right away. Would recommend to anyone

Roy - June 10, 2019 Verified Purchase

Brushing up on saw repair.

Same as originals. One original not making contact with armature and was so stuck it came apart trying to take it out. I have another set ordered and on the way. This time I'll see what is causing the thing to get in such a bind (before I get it stuck).

Audie - June 5, 2019 Verified Purchase

Worked as should quick delivery easy part look up

All is well

Guest - May 20, 2019 Verified Purchase

brush set receive and installation

Part arrived quickly an was easy to install. The best thing is that it was the correct part and works great, also the shipping was free.

Guest - May 17, 2019 Verified Purchase

Package came complete

Sometimes came with extra screws very handy

Guest - May 8, 2019 Verified Purchase

Wrong Part

Even though the number was right there wasn't enough information in the description to know if really was the right part. I need measurements of the carbon end of the brush set and the top end. this totally won't work for the motor.

Joel - August 17, 2019 Verified Purchase

Verified Purchase

eReplacementParts Team

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Product Information

Manufacturer: Hitachi

Product Number: 999-043

Classification: Part

Weight: 0.03 lbs.

Also Known As: Motor Brush Set

Shipping: Ships Worldwide