For Troy-Bilt, MTD, MTD Gold, Bolens, White Outdoor, Huskee, Yard Machines and Yard Man. Step 12: Remove the lower drive belt from the lawn mower. Free Shipping on Parts Orders Over $45. Remove the cutting deck. Step 25: Re-install the cutting deck.
Carefully lift the middle sheave slightly so the belt will clear the belt guide and slip it onto the variable speed pulley. Remove the bolt securing the crankshaft pulley using a 5/8" socket. As you remove the engine pulley, note the orientation of the parts for reassembly (or take a picture). Safety glasses or goggles, and hand protection, in the form of mechanic gloves, should always be used. Start the unit and check that all linkage and related safety features are operating correctly before returning the mower to full operation. Step 18: Replace the lower transmission belt. Adjust the ferrule with a new cotter pin as you did in Step 23. Maneuver the upper (rear) belt from the transaxle pulley and remove the belt from the mower. Again, with the parking brake engaged, remove the cotter pin that secures the ferrule in the latch assembly. Yard machine 38 inch deck belt diagram cub cadet. Apply a very small quantity of anti-seize compound to the engine crankshaft.
Before starting this project, make sure you have the correct lawn tractor parts. Oil, Lubricants and Fuel Additives. When you need parts for your walk-behind lawn mower or riding lawn mower, you can use the MTD Genuine Parts Part Finder to find the correct one. The V belt found on your tractor is specially designed to engage and disengage safely. Belt Specifications. Reconnect the spark plug wires to the spark plugs. As you install the new lower drive belt, confirm the correct belt routing inside of all the belt keepers and through all the guide pins using the pictures taken before the lawn mower belt removal. Remove the lower drive belt from the mower by pulling it towards the engine. Yard machine 46 inch deck belt. For the do-it-yourself homeowner, here are some step-by-step instructions on how to change a riding lawn mower drive belt. 5 - 50 foot pounds (51-68 Newton Meters). The MTD Genuine Parts Knowledge Center provides do-it-yourself instructions for performing many basic maintenance items, including replacing cutting blades, drive and deck belts, and engine oil. If you find your machine has a bigger problem, use our service locator to find a qualified MTD service provider in your area.
If while performing lawn mower maintenance on your drive belts, you noticed other issues or signs of wear, take the time to order replacement lawn tractor parts before running the machine again. Ground the spark plug wire (s) against the engine to prevent it from starting during lawn mower maintenance. Even if only slightly worn, operating with damaged equipment could cause larger issues if not addressed. Belt Application 38 in Deck. Step 2: Check the engine temperature before replacing the lawn mower belt. Secure the ferrule with a new cotter pin and test the operation of the linkage. If not, use a strap wrench to hold the crankshaft pulley while loosening the bolt.
Disconnect the linkage from the latch assembly. Tighten the large nut that secures the transaxle pulley to the input shaft of the transaxle using a torque wrench and torque to 10-15 foot pounds (13. The following procedure will be for the speed control linkage on the variable speed belt drive. Put the cotter pin back through the hole in the ferrule on the top side of the variable speed pulley bracket. If the engine is hot, allow the exhaust system to cool down before attempting any maintenance.
Step 9: Remove the belt keeper. Riding Mower 38-inch Deck Belt. Opposite of when you removed the battery, connect the red positive battery cable to the positive battery terminal first. If you need to make an adjustment there will be tension on the linkage and the resulting friction will cause resistance as you slide out the ferrule. Step 17: Tighten the crankshaft pulley bolt. Make sure the lawn mower belt is fully seated in the grooves. Because of the tension change when you replace lawn mower belts, it is always recommended to check all drive adjustments after changing the drive belts. Step 28: Check the operation of the new lawn mower belts. Put the cutting deck back in place under the mower as outlined in your owner's manual. Disconnect the ferrule from the bracket. Step 8: Take the belt off the variable speed pulley. Use our Part Finder to look up your belt based on the part numbers for your riding lawn mower. During the installation process, you can refer back to the pictures for reference. It's a good idea to take a picture of how the lawn mower belts are routed before removal.
Fix equipment issues quickly. If your new lawn mower belts and other parts are running smoothly, then you're ready to get back out and mow! Note: DO NOT get any anti-seize compound on the bolt threads or in the bolt hole of the crankshaft. This will help ease the crankshaft removal in the future when needed. How To Repair the Drive Belt on a Riding Lawn Mower. Next, remove the belt guide from the variable speed pulley bracket using a 1/4" socket.
While holding the spacer in place, install the crankshaft pulley. Depending on your model, the steps to install lawn mower belts may vary. Step 27: Reattach the spark plug wire(s). Loosen the large nut holding the pulley to the input shaft using a 7/16" socket. For a proper working machine, always use factory approved lawn mower belts. Fits Lawn Tractors 2005 and After. Step 11: Make a note of where parts are located before you install a new drive mower belt for your riding lawn mower. Note: Orientation of left and right is determined from the operator's position in the seat. Step 20: Install the new riding lawn mower upper drive belt. Step 10: Remove the bolt securing the crankshaft pulley. Then, install the crankshaft pulley bolt with the lock washer and heavy flat washer in place. A substitute, or NON-Original Equipment Manufacturer (OEM), V-belt can be dangerous as it may not disengage completely. Step 1: Position the mower to change the lawn mower belt. The lock-washer to the bolt head and the heavy flat washer to the crankshaft pulley.
Disconnect the spring from the anchor bolt on the left side of the tractor using a spring puller or a small piece of rope. This will relieve tension on the upper drive belt. Step 4: Remove the cutting deck and battery. Instructions for removing the cutting deck can be found in your Operator's Manual in the "Service" section. Step 26: Re-install the battery. Always observe safety rules when performing any lawn mower maintenance. Then re-install the belt guide, which was removed from the variable speed pulley bracket, by using a 1/4" socket. Re-install the tension spring and connect it to the anchor bolt on the left side of the tractor.
Place the mower on a flat, level surface and set the parking brake to keep the mower from rolling while you're working. Then lift the seat to gain access to the battery. Step 15: Insert a spacer. Open the hood and remove the spark plug wire(s). Using a torque wrench, tighten the crankshaft pulley bolt, to a torque of 37. Just follow the cutting deck removal instructions in reverse order.