Part Location Diagram of 90570298N DeWALT MOTOR HEAD ASSEMBLY
See part 14 in the diagram
( Grid squares measure 1x1 inch )

MOTOR HEAD ASSEMBLY 90570298N

Manufactured by:
DeWALT
ERP Number:
ERP18988634
Part Number:
90570298N
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(3 rated repairs) ?

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Troubleshooting

This part works with the following brands:
  • Black and Decker
This part works with the following products:
  • Trimmer
Part# 90570298N replaces these:
90570298N,

Customer Part Reviews

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4.8
Average Rating (out of 5):
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(6 Reviews)
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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

15 - 30 mins 

(3 rated repairs) ?
  • 1
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Long grass had wrapped around the gear assembly shaft, got hot and melted the motor housing bearing holder. With no solid support the gear assembly misaligned and the metal motor gear shaved off much

John from Chehalis, Washington

5 of 5 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
N498091, 90570298N
1. Remove the string guard
2. Remove all screws holding the damaged motor housing together.
3. Pry off one half of the damaged housing to expose the motor and gear assembly.
4. Remove the gear assembly from the other half of the damaged motor housing.
5. Remove two screws from the motor power cord hold down plate t o free the motor cord from the damaged motor housing assy.
6. Remove the other half of the damaged housing to expose the motor.
7. Place the motor into the new motor housing half.
8. Secure the motor power cord in the new housing by screwing the motor power cord hold down plate.
9. Insert the new gear assembly into the new motor housing assembly half
10. Place the remaining new half over the motor and gear assembly.
11. Make sure you have the head rotation release button positioned properly
12. Screw the two motor housing halves together
13. Replace the string guard.
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Gear assy bearing housing melted (common problem)

John from CHEHALIS, Washington

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
90570298N
The gear assembly bearing is a press fit into the motor housing. I had to place the bearing as far into the motor housing bearing holder as it would go, then screw the two halves of the motor housing together. This pushed the gear fully into the bearing holder.
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Housing worn

steve from forney, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
90570298N
Removed old housing. Installed new one.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP18988634
Manufacturer Part Number: 90570298N
Brand Model Number Description
Black and Decker LST136B Trimmer - 40v Lith Str Trimmer