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LST140C (Type 1) Black and Decker Trimmer - Overview

Sections of the LST140C

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Keep searches simple, eg. "belt" or "pump".
Edge Guide – Part Number: 90571331
Edge Guide
PartSelect #: PS12004529
Manufacturer #: 90571331
$5.95
  In Stock
Guard Assembly – Part Number: 90567871N
Guard Assembly
PartSelect #: PS12004490
Manufacturer #: 90567871N
$13.97
  In Stock
Trimmer Cover – Part Number: 385022-03N
Trimmer Cover
★★★★★
★★★★★
(1)
PartSelect #: PS12443187
Manufacturer #: 385022-03N
This cover is designed for use with trimmers and edgers and is a genuine OEM part. Made of plastic, this cover is used to hold and secure the spool or line within the trimmer cutter head assembly. If ...
$6.19
  In Stock
Gear & Spindle – Part Number: N498091
Gear & Spindle
★★★★★
★★★★★
(1)
PartSelect #: PS12530718
Manufacturer #: N498091
$20.09
  Special Order
Motor & Mount – Part Number: N498090
Motor & Mount
PartSelect #: PS12526009
Manufacturer #: N498090
$49.51
  In Stock
Motor Housing – Part Number: 90636582
Motor Housing
PartSelect #: PS12510041
Manufacturer #: 90636582
$12.83
  In Stock
Trimmer Trigger – Part Number: 90621578
Trimmer Trigger
PartSelect #: PS12505526
Manufacturer #: 90621578
$5.95
  In Stock
Trimmer Spring – Part Number: 90566944
Trimmer Spring
PartSelect #: PS10254180
Manufacturer #: 90566944
$5.15
  In Stock
Lever Assembly – Part Number: 90567077
Lever Assembly
PartSelect #: PS12004487
Manufacturer #: 90567077
$5.19
  In Stock
Handle Assembly – Part Number: 90625191
Handle Assembly
PartSelect #: PS12466163
Manufacturer #: 90625191
$6.37
  Special Order
CHARGER – Part Number: 90604879-01
CHARGER
PartSelect #: PS12502891
Manufacturer #: 90604879-01
$55.17
  Special Order
SPOOL & LINE – Part Number: 90626046
SPOOL & LINE
PartSelect #: PS12466165
Manufacturer #: 90626046
$14.86
  Special Order

Questions And Answers for LST140C

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Common Symptoms of the LST140C

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Cutting line does not come out
Fixed by
these parts
Fixing
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Bearings on motor armature were shot ... driver gear not turning driven gear.
Took off line guard and guide. Remove 1 Phillips screw.
Opened motor head. Remove 7 torx screws
Opened split housing using a small straight slot screw driver.
Removed gear from housing and pulled it out the bearing housing.

Opened split housing on trigger end. 8 torn screws.
Opened split case with flat screw driver.
Removed motor connections in trigger end for motor.

Pulled motor cable and motor from extention tube.

Please note tube orientation for easy reassemble.

Install new cable/motor on trigger end. Reinstall housing on trigger end.

Install new motor and gear head into new housing. Be sure to install old electrical brace stop to protect new cable.

Roll gear head to verify easy non-binding rotation.

Install top of split case for motor/head end.

Reinstall line guard and line guide.

Test with battery to proof the assembly
Parts Used:
Gear & Spindle Motor & Mount Motor Housing
  • Mark from CATOOSA, OK
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Screw drivers
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