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Repair Parts Home  Power Tool Parts  Hitachi Parts  881-588 Thermal Protector

Thermal Protector

Part Number: 881-588
Hitachi
Availability: 1 in stock
Price: $12.28
Quantity:
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*This part replaces obsolete part #: and 884790.

Description:
This thermal protector switch is an authentic Hitachi replacement part. It is specially manufactured for electric air compressors. This part is designed to protect the engine from overloading. If the engine is overloaded normally you can push the button to reset it, however if the switch is faulty it will need to be replaced to close the circuit. Please note, this thermal protector is sold individually. It includes the indemnification plate and the ring to secure it.

Replacing this part is a simple and quick task that should only require a screwdriver.

• Unscrew the ring that secures the old protector
• Carefully remove the housing
• Disconnect the wires and remove the old switch
• Secure the new protector in place
• Reassemble and test
Product Information
Manufacturer: Hitachi
Product Number: 881-588
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Products Compatibility

This item works with the following types of products:

  • • Compressor
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
3 of 3 people found this instruction helpful
Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Wouldn't run
Remove the motor cover
Remove the nut from the front of the overload and remove it
Transfer the wires leads from the old one to the new one
Install the new one in the cover, then install the cover
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Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Wrench Set, Adjustable Wrench
Compressor keeps cutting out. Built in Thermal protector trips continuously.
1. DRAIN TANK!!!
2. Remove copper pipe between tank and motor;
3. Remove four nuts and bolts holding motor to frame;
4. Lift motor from frame;
5. Remove four rubber washers between motor and frame;
6. Remove four screws holding plastic shroud to motor;
7. Lever off the shroud from the two aluminum pins. This is the worst part.
8. Disconnect and replace the circuit breaker/thermal protector;
9. Reverse ( The shroud plastic is difficult to replace on the aluminum pins and may crack.)
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Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Wrench Set
Breaker tripped when turning on compressor
Replaced the Thermo switch. The compressor works like new now.
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Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Socket set, Wrench Set
Compressor would run but would shut off before cycle was complete.
With my comressor, " Rigid Mini Wheelbarrow Compressor", I had to remove the motor from the frame to get the protective cover off. Once I got the cover off the thermal protector was right there. I pulled the wires off and put the new thermal protector in. The process took about 30 minutes only because of the way my compressor was set up. Changing out the part only took a minute.
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0 of 1 people found this instruction helpful
Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers
Had faulty thermal cut-out , tripped often.
Disconnect the terminals from the old circuit breaker. Remove the nut from the old circuit breaker and remove. Install the new breaker and tighten the nut, connect the terminals to the new breaker. No more problems.
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0 of 1 people found this instruction helpful
Tool Type:
Compressor
Parts Used:
Thermal Protector - 881-588
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Wrench Set
Defective thermal protector
Remove plastic motor cover 4 phillips screws. Then remove thermal protector from motor cover 1 nut, switch wires replace thermal protector & cover
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Discussion
Discussion for Thermal Protector - ( 881-588 )
Discussion is closed. To ask our experts a question about a part, use the Q&A feature.
Question: Trips

1170075

My compressor tends to trip all the time. You either need to continue to press the reset plug in the back and repeat a few times, or move to a different plug. I do understand the outlet may not have enough amps. But what I don't understand is this problem happens on almost half of the outlets I try. It gets kind of frustrating for my guys out on jobs. Any thoughts or ideas?
Hi,
Both the Hitachi and Makita compressors use the same type of thermal link removed your case that is Thermal Protector
Part Number: 881-588. They had a history of getting weak and tripping prematurely.I'd try this first and that should take care of your problem.Hope this helps.Good luck.
Tinker
replacing a part I cannot find is nearly impossible. I don't see a thermal protection any where. is it inside the motor? I stripped the compressor covers off exposing the capacitors. the wiring seems to go into the motor out to the capacitors and back into the motor.
WJA
Hello 1454906 ,

If you look at the parts diagram for the Hitachi EC119SA Twin-Stack Air Compressor. The part number 881-588 Thermal Protector, is item number 33. Just about right in the middle of the diagram.

-WJA
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