MM850 (Type 4) Black and Decker Lawn Mower - Overview

Sections of the MM850

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Keep searches simple, eg. "belt" or "pump".
Shunted Carbon Brush – Part Number: 242273-00
Shunted Carbon Brush
★★★★★
★★★★★
(1)
PartSelect #: PS9927365
Manufacturer #: 242273-00
Keep your power tools running at peak performance with this genuine replacement carbon brush. Sold individually, this brush is designed for long-lasting durability and reliable performance. Most tools...
$11.02
  In Stock
Blade Insulator – Part Number: 241381-01
Blade Insulator
PartSelect #: PS9927054
Manufacturer #: 241381-01
Protect your blade and reduce vibration with this durable plastic blade insulator. Designed to prevent direct contact between the spacer and the blade, this component plays a key role in maintaining s...
$10.52
  On Order
7inch Wheel – Part Number: 242600-01
7inch Wheel
PartSelect #: PS11925177
Manufacturer #: 242600-01
This is a genuine manufacturer sourced replacement wheel. It is specially designed for use with walk-behind/push lawn mowers. This is the drive wheel that allows mower to move. This part consists of a...
$31.38
  In Stock
Lawn Mower Fan – Part Number: 241125-00
Lawn Mower Fan
PartSelect #: PS9926821
Manufacturer #: 241125-00
$46.71
  In Stock
Lawn Mower Fan – Part Number: 241125-00
Lawn Mower Fan
PartSelect #: PS9926821
Manufacturer #: 241125-00
$46.71
  In Stock
Front Axle – Part Number: 242364-03
Front Axle
PartSelect #: PS9927379
Manufacturer #: 242364-03
  No Longer Available
Heatsink – Part Number: 242271-00
Heatsink
PartSelect #: PS9927364
Manufacturer #: 242271-00
  No Longer Available
Washer,Flat – Part Number: 242359-00
Washer,Flat
PartSelect #: PS9927376
Manufacturer #: 242359-00
$7.44
  Special Order
Rod,Connecting – Part Number: 242357-01
Rod,Connecting
PartSelect #: PS9927375
Manufacturer #: 242357-01
  No Longer Available
Screw – Part Number: 242243-00
Screw
PartSelect #: PS9927354
Manufacturer #: 242243-00
  No Longer Available
Lock,Lever – Part Number: 242362-01
Lock,Lever
PartSelect #: PS9927377
Manufacturer #: 242362-01
  No Longer Available
Clamp – Part Number: 062443-02
Clamp
PartSelect #: PS9869654
Manufacturer #: 062443-02
$7.44
  Special Order
Cable&Plug Assembly – Part Number: 242267-05SV
Cable&Plug Assembly
PartSelect #: PS11925153
Manufacturer #: 242267-05SV
  No Longer Available
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Questions And Answers for MM850

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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
DOA
Did shorts test on motor, continuity tests on switch and rectifier. Found dead rectifier, ordered same, Installed Now OK
Parts Used:
Rectifier
  • Le from BIGGSVILLE, IL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
12 of 18 people found this instruction helpful.
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Fan broke.
Removed bolt holding lawnmower blade and took out washer, spacer, blade and fan. Cleaned up underside of mower then replaced fan, blade, new insulator, washer and bolt.
Parts Used:
Blade Insulator Lawn Mower Fan
  • Steven from Port Angeles, WA
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Socket set
1 person found this instruction helpful.
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