TRACTOR STOPPED WHILE MOWING. CHECKED AND FOUND BELT OFF, REATTACHED BELT BUT TRACTOR STILL DOES NOT MOVE. WHERE AND HOW DO YOU CHECK THE HYDRASTATIC TRANSMISSION FLUID ON A HUSQVARNA TRACTOR MODEL 1528.
ALSO BOUGHT TRACTOR USED, BUT STILL UNDER WARRANTY. DO YOU KNOW IF HUSQVARNA WARRANTIES ARE TRANSFER-ABLE? THE OWNERS MANUAL EXPLAINS NOTHING ABOUT THE TRANSMISSION.
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Re: HYDRASTATIC TRANSMISSION DOESN'T MOVE
Far as I know the warranties are not transferable. Some hydrastatic transmission fluid can be checked by removing the battery and underneath there is a place to put the fluid and to check it. But not all models or makes gives you this option.
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Safety and Preparation
Serious injury can occur if the engine or mower blades accidentally start while you are working with lawn tractors. To prevent this, drive the Murray lawn tractor onto a flat work surface and disengage the mowing deck cutting blades. Engage the parking brake to keep the mower from moving; chock the wheels with a wooden block or brick. Adjust the mowing deck to the lowest position. Turn off the engine and remove the key from the ignition. While not necessary, you may even wish to disconnect the spark plug wire from the spark plug.
Mowing Deck Removal
You must remove the mowing deck on a Murray lawn tractor to gain access to the belts. Remove the adjustment rod hairpins, followed by the adjustment rod pins from the front left and right sides of the mowing deck. At the rear on the left and right sides, pull out the retaining hairpins and slide the mowing deck suspension links from the adjuster plates to separate the rear mowing deck from the frame. Remove the blade control rod stud, including the hairpin and washer, from the top of the blade control lever shift linkage at the left rear of the deck. Remove the front hanger rod, including the hairpin and flat washer that hold the rod in place. Loosen the belt guide retaining bolts with a socket wrench and remove the engine stack pulley belt so you can slide the mower deck out from under the tractor
Transmission Drive Belt Installation
Slide the new transmission drive belt between the engine stack pulley belt guides, over the belt guide plate and under the engine stack pulley. Fit the transmission drive belt around the top engine stack pulley. Push the free end of the transmission drive belt up through the transmission shifter hole in the lawn tractor floorboard. Slip the transmission drive belt loop over the transmission shifter. Pull the transmission drive belt down through the transmission shifter hole. Fit the transmission drive belt around the transmission drive pulley and tighten the transmission drive pulley belt guide retaining bolts to hold it in place. Fit the transmission drive belt flat side around the idler pulley. Slide the idler pulley onto the idler pulley stud while holding the belt in place. Tighten the transmission idler pulley retaining nut with a socket wrench to secure the idler pulley to the idler pulley stud.
Mowing Deck Drive Belt Installation
Pull back on the right side mowing deck mandrel pulley spring-tensioned belt retainer. Guide the new mowing deck drive belt around the right side mandrel pulley and release the belt retainer. Pull the drive belt spring-tensioned retainer away from the mowing deck idler pulley, guiding the deck drive belt around the idler pulley. Fit the mowing deck drive belt around the left side mandrel pulley and under the rear mowing deck cross link rod between the right and left side mandrel pulley. Slide the mowing deck under the right side lawn tractor frame, reconnecting the deck to the frame in reverse order of removal. Engage and disengage the mower deck while driving the mower to test the belt for proper operation.
With the mower turned off and the deck at its lowest setting, check the top of the deck for any debris like rocks or sticks. Then watch the top of the deck while you move the engage lever. If nothing is moving, you either need to adjust the cable, reattach the cable, or install a new cable. If you see the lever with the pulley on it moving, when the engage lever is locked on, check the tightness of the belt. If it's loose, that is your problem and it could be a stretched belt.
If the transmission is belt drive, check the belt, worn/oily? If you have a hydrastat tranny, make sure that the bypass plunger is pushed in. Check that the belt goes around the tranny pulley. If still no luck, turn mower off, jack up and support the rear frame, with the real wheels hanging in the air(just an inch or two is plenty) try turning the wheels -1st, with the gear selector in "N". then 2nd, with the gear selector in "D". This should narrow the problem down a bad tranny or a sheared keyway in the axle.
If this is a manual transmission, check the drive belt from the engine back to the transmission. With the clutch pedal up (engaged) there should be no slack in the belt.
If it is a hydrostatic drive, check the drive belt and make sure it is tight. Check the transmission fluid level and make sure it is full. Refer to your owners manual as it will describe the fluid check proceedure.
Good luck, let me know.