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May I also get the serial # so I can get you the right belt diagram.

How to Identify and Fix Common Gardening Problems ?

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The “Deck Belt” goes around the pulleys right above the blades on the deck and then to a double pulley. The “Drive Belt” on your mower goes from the transmission, around an Idler pulley then over to the double pulley I mentioned before. The Drive belt also plays a role in making the wheels turn.
To measure the width, a measuring tape can be used to measure the length of the belt from one side to the other. The thickness of the belt is typically measured with a caliper or micrometer. Once the length, width and thickness are determined, the correct size belt can be purchased to fit the lawn mower.
Continue to measure around the inside of the lawnmower deck until you record the distance between the last spindle pulley and Spindle Pulley 1. Add up the measurements to determine the total distance around the spindle pulleys. This is the size of the mower deck belt you need.
Riding Mower 42-inch Deck Belt – 954-05021 | MTD Parts.
The deck belt on your riding lawn mower connects the crank shaft to the lawn mower blades, causing them to turn.
Different Types of Belt Drives: There are different types of Belt Drives the Most Common Used Belt Drives are Flat Belt, V-belt, Round Belt, Circular Belt. Flat Belts are Mostly used in factories. V-Belt can transmit power from one pulley to another pulley.
Put on a pair of pants that fits well and stand in a relaxed position. Then wrap a soft tape measure through the belt loops so the tape is snug but not too tight. This measurement is your belt size. You may need to round up to the nearest even-numbered inch.
Traditionally belts come with 5 holes…and most people will tell you that you should fit into the middle hole of these 5.
Determine Mower Deck Size

For homeowners with one and a half to three acres to mow, a mower with a cutting deck between 42” to 48” is a good size. Over three acres, you`ll want something larger. Before buying a 72” mower for lawns greater than three acres, consider your terrain.

954-04249A Lower Drive Belt, 5/8 X 71 Mower Belt Replacement Compatible with MTD Cub Cadet 754-04249 954-04249.
GX20072: HA Section Mower Drive Flat Belt, Effective Length 2635.0 mm (103.7 inch)
A common cause of belt breakage is excessive grass clippings on the deck. Grass clippings can work their way under pulleys and deck covers, causing series problems. Make sure to clean off your deck after every mower use and follow manufacturer recommendations.
Belt length correction factor takes into account modification of belt power rating for belt which length differs from base belt length. The value is defined by belt manufacturer and it is stated within belt data file. For belt base length the value of length correction factor is 1.0 what does not affect the results.
The fabricated mower deck is typically built from heavier plate steel and is a welded mower deck. The stamped mower deck is typically lighter and the mower deck shell is formed by large molds and presses.
Description: This is a genuine replacement part manufactured for use with riding lawnmowers. The deck spindle is used to drive the spindles to which the lawnmower blades attach. This spindle deck belt is available as an individual replacement part, please see model diagram for associative parts.
Here is a brief overview of 13 different types of belts. 1. Formal belts: These dress belts are usually reserved for formal occasions, often worn with suits or dress slacks. A cumberbund, which is a pleated fabric belt usually worn with a tuxedo or suit, is a common type of formal belt.
There are two belts you need to be familiar with when talking about car maintenance — the serpentine belt and the timing belt. The serpentine belt winds through your engine and carries power to several key components, including the alternator, air conditioning, and power steering pump.
Kevlar V-belts are built to be stronger and last longer than standard belts. Whereas standard belts are typically made with polyester cords, Kevlar V-belts are made from Kevlar cords which can withstand more wear and tear.
Primary blade drive belt connects the mower deck driven pulley to the electric clutch to turn the blades. Wear work gloves to protect your hands when installing this part.
Multiply the inch measurement by 2.54 to find your belt size in cm. Men`s pant sizes are usually one size smaller than their belt size. For example, a 36-inch waist will correspond to a 38-inch belt size.
First two digits indicate top width in sixteenths of an inch. Next two digits designate sheave angle, in degrees, that the belt is designed to fit. Last three or four digits indicate pitch length to the nearest tenth of an inch. Part numbers are derived from industry standard number.
There are usually 6-7 holes on belts and the middle one is usually the best for fastening the belt. This will ensure that the end of the belt would not be too long to dangle on your trousers or too short to be fastened.
The average belt loop size on a pair of dress pants is 1.25″ and on a pair of jeans, the standard is 1.5″, making the most common standard belt width for tailored pants in the 1-1.25″ range.
Belt Size = Men`s Pant Size + 2 inches

If your pants size is a 34, buy a belt size 36; if your pants size is a 36, buy a belt size 38, etc. The reason you buy a belt size up from your pants size is to give yourself a few inches of room in case your body size ever changes.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

ROUTING OF BELT – Mtd Drive Belt 42"
ANSWER : Diagram is on the mowing deckBest regardsCk

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Mower belt diagram – Craftsman 17.5 hp 42 in. Deck Lawn Tractor – CA Model
ANSWER : You can get a belt diagram from

just follow the leads, and have your model number handy, you will need it.

you can also get this from

Read Full Q/A … : Toro

How do I recharge the battery on a key start mower
ANSWER : Your mower should have come with a charger. if you don’t have a charger take down the make model and serial number and contact your nearest dealer to purchase. also, you could have a dead or damaged battery, charger could be faulty. hope this helps.

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I replaced the rear drive belt and now I only can go forward, what did I do wrong or what can I do to check this?
ANSWER : Your belt is not on right. MTDs use a tension system for the drive belts to control speed. You either missed a pulley or got one backwards.Check here for diagrams. You will need the model # for your tractor but is a good site for all kinds of mowers

Read Full Q/A … : Toro

ANSWER : MTD says there are 2 different applications. I hope this one is yours, if not, by using it as a reference; maybe you will be able to do yours. Good luck.

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I have a toro lx500 riding mower. the blades won’t engage.
ANSWER : Check the belt on top of the mower deck. Make sure the belt didn’t slip off or break.

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I need a diagram for cub cadet 1018 mower deck belt replacement
ANSWER : Contact MTD if your manual doesn’t cover this, or buy a shop manual

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Cub Cadet 1525 belt diagram
ANSWER : Attached is the blade diagram for correct placement of the deck belt. There is some bleed through from the back page, but you can see the direction of the belt. I have a 1525 mower for the last 11 years, still running and going. Hope this helps!

Read Full Q/A … : Toro