SERVICE
Service - 19
Attachment Drive Belt (S)
1. Detach the mower deck from the tractor.
2. Remove the drive pulley shield.
3. Remove the old drive belt.
4. Install the new drive belt over the pulley.
5. Replace the drive pulley shield.
Gearbox Drive Belt (S)
1. Detach the mower deck from the tractor.
2. Raise the carrier frame shield.
3. Release the belt tensioning spring.
4. Remove the old drive belt.
5. Install the new drive belt.
6. Engage the belt tensioning spring.
Center Deck Belt (R)
1. Detach the mower deck from the tractor.
2. Raise the carrier frame shield.
3. Release the center deck belt tensioning spring.
4. Remove the old center deck belt.
5. Install the new center deck belt. Place belt into
the pulley system according to the belt diagram
located on the underside of the carrier shield.
6. Engage the deck belt tensioning spring.
Left Deck Belt (P)
1. Detach the mower deck from the tractor.
2. Raise the carrier frame shield.
3. Remove the left deck shield and the left deck
hinge shield.
4. Release the left deck belt tensioning spring and
the center deck belt tensioning spring.
5. Remove the center deck belt from the double
spindle pulley that drives the left deck belt.
6. Remove the left deck belt.
7. Install the new left deck belt. Place belt into the
pulley system according to the belt diagram
located on the underside of the carrier shield.
8. Engage the left deck belt tensioning spring.
9. Place the center deck belt back on the spindle
pulley.
10. Engage the center deck belt tensioning spring.
11. Reinstall the left deck shield and the left deck
hinge shield.
Right Deck Belt (P)
1. Detach the mower deck from the tractor.
2. Raise the carrier frame shield.
3. Remove the right deck shield and the right deck
hinge shield.
4. Release the right deck belt tensioning spring and
the center deck belt tensioning spring.
5. Remove the center deck belt from the double
spindle pulley that drives the right deck belt.
6. Remove the right deck belt.
7. Install the new right deck belt. Place belt into
the pulley system according to the belt diagram
located on the underside of the carrier shield.
8. Engage the right deck belt tensioning spring.
9. Place the center deck belt back on the spindle
pulley.
10. Engage the center deck belt tensioning spring.
11. Reinstall the right deck shield and the right deck
hinge shield.
Drive Belt Tensioning Adjustments
Each drive belt of the MJ840 mower is spring
loaded to maintain proper belt tension. No adjust-
ments are required.
Tire Pressure
The MJ840 is equipped with flat-free, cushioning tires
to provide a maintenance free, consistent cutting
height. No tire pressure adjustments are required.
Storage
Preparing the Contour Mower for Storage
1. Clean the mower decks and the frame.
2. Inspect for loose or missing hardware, damaged
components, or signs of wear.
3.
Inspect hydraulic hoses and fittings to ensure
tight, leak free connections. Repair or replace
any damaged or worn components.
4. Inspect belts, spindles, and blades. Repair or
replace any damaged or worn components
5. Apply grease to all grease points.
6. Depending on the position of the mower during
storage, a light coating of oil on the exposed
cylinder rod is recommended.
7.
Wipe off all excess grease or oil.
Removing the Contour Mower from Storage
1. Clean the mower deck to remove any accumu-
lated dust or debris.
2. Inspect the mower as instructed in the daily
inspection section of this manual.
3. Test the mower to ensure all components are
working properly.
