Replacing a Ground Drive Belt on a Riding Lawn Mower

Replacing a Ground Drive Belt on a Riding Lawn Mower

The first step to replacing a ground drive
belt is to turn the ignition switch off and remove the key. Lift the mower hood and disconnect the spark
plug wire. Lower the mower deck to its lowest position. Disengage the cutting blades. Roll the blade belt off the engine pulley
and release the belt from the belt keepers. Remove the front lift link support retaining
pin and washer and then detach the support from the deck. Remove the left suspension arm retaining clip
and then detach the arm from the mower frame. Remove the left rear deck bracket retaining
clip and washer and then release the bracket from the deck. Repeat the process on the other side of the
deck to disconnect the right suspension arm and right rear deck bracket. Pull the deck out far enough to access the
blade cable attached to the deck. Release the locking tabs and pull the blade
cable out of the deck bracket. Disconnect the blade cable spring from the
idler arm and move the cable aside. Pull the deck out from under the frame. Remove the flywheel screen cap and position
a socket wrench on the flywheel bolt with the wrench handle resting against the fuel
tank to keep the crankshaft from turning. Remove the engine pulley bolt and washer and
then pull the engine pulley off the crankshaft. Release the drive belt from the pulley. If the old belt is still intact, take a photo
of how the belt routes through the idler pulleys so you can route the new belt correctly. If the belt is broken, see the owner’s manual
for belt routing. Release the belt from the idler pulleys and
belt guides. Lift the seat and remove the bolt connecting
the negative cable to the battery. Lift the insulating cover and remove the bolt
connecting the positive cable to the battery. Lift the battery out of the battery box. Release the seat switch wire harness clip
from the seat bracket. Release retaining tabs and lift the battery
box out of the mower body. Set the box on the fender. Release the drive belt from the transaxle
pulley. Pull out the ground drive belt. Loop the ground drive belt over the transaxle
pulley. Position the battery box in the opening and
engage the retaining tabs. Reconnect the seat switch wire harness clip
to the seat bracket. Lower the battery into the mower body and
align the wire harness and battery cables. Reconnect the positive battery cable to the
positive battery terminal. Put the insulating cover back in place. Reconnect the negative battery cable to the
negative battery terminal. Lower the seat. Route the belt through the chassis and over
the steering plate. Push the belt through the inside of the front
belt guides. Loop the belt over the engine pulley, line
up the pulley notch with the crankshaft groove and slide the engine pulley onto the crankshaft. Position the wrench on the flywheel bolt so
the wrench handle rests against the fuel tank to prevent crankshaft rotation. Reinstall the engine pulley bolt and washer. Remove the wrench from the flywheel bolt and
reinstall the flywheel screen cap. Route the right side of the belt through the
front and middle idler pulleys. Slide the left side of the belt into the belt
keeper and over the rear pulley. Push the deck near the mower frame. Connect the blade clutch cable spring to the
idler arm. Push the blade clutch cable retainer into
the deck bracket and engage the locking tabs. Position the deck under the mower frame. Reconnect the front lift link support to the
deck using the washer and retaining clip. Reconnect the left suspension arm and deck
bracket using the washers and retaining clips. Repeat the process to reconnect the right
suspension arm and deck bracket. Route the blade belt through the belt keepers
and roll the blade belt onto the engine pulley. Reconnect the spark plug wire and lower the
mower hood.

15 thoughts on “Replacing a Ground Drive Belt on a Riding Lawn Mower

  1. on my LT2000 there is a plate over the idler pulleys. How do I replace the belt when there isnt room to remove it between the pulleys and frame?

  2. My mower has the gas tank in the back about the transaxel pulley, is there a better way to get around it?

  3. Do you have a video for model number 917.276903. It's a 26hp with the 54" deck. Fuel tank mounted in the rear. (Where the battery is on this model.) Thanks!.

  4. Have You come across a riding mower with some sort of a (engine)drive pulley with a magnetic locking system?
    My neighbor has an Italian mower Castelgarden NJX98S Hydro year2008.
    It is supposed to engage mowing deck through a switch. And drive is operated with one pedal- backwards and forward.
    Engine starts up normally, but when one tries to either drive or engage a mowing deck, the engine dies out. And with the engine stopped the engine pulley can't be rotated by hand.
    I was told that it had acted up a few times in the last month or so and then worked normally again, but today it stopped working completely.

  5. I had to do this last week after the drive belt broke and yes take the battery out for easy access to the belt at the transmission.

  6. Looked up this video to learn how to route the drive belt. Literally didnct remove anything to replace it.

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