Cub Cadet TANK SZ 60 TANK SZ 48 Operator's Manual - Page 31
Adjusting the Belt Tension, Deck Wheels
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Front to Back Leveling 1. Measure the blade-to-ground height at the right rear blade tip. Again be sure to measure at the blade tip at the rear of the right blade when aligned along the mower centerline. The blade-to-ground height at the rear of the blade tip should be 1⁄8" to 1⁄4" higher than the front tip. This is referred to as blade pitch. The same height difference should be true for the left blade, measured front and back. The pitch should not exceed 1⁄16" if cut height is below 1-1⁄2". 2. Loosen the jam nuts at the rear left and right of the deck horizontal threaded rods. Refer to Fig. 6-3. 3. Start at the rear right to raise the rear of the deck, tighten the rear outer jam nut to raise the deck or loosen the rear outer jam nut to lower the rear of the deck. 4. Adjust the rear jam nut at the rear left to take the "slack" out of the threaded rod. 5. Tighten both inner jam nuts to secure the deck adjustment. 6. The final adjustment would be to take the "slack" out of the left rear linkage if the rear of the deck was raised by adjusting the jam nuts on the eyebolt. Loosen the jam nuts and tighten the upper nut to remove "slack". 7. In many cases it will be necessary to adjust deck height using both eyebolt adjustments and pitch adjustment to achieve the correct blade-to-ground heights. If you remember that the front right blade tip adjustment is fixed and you level to that height, adjusting the decks will be simplified. 5. Once the deck is level one may find that the height of cut does not match the height of cut indicator. A final adjustment may be made by lowering or raising the height of cut link accordingly. To raise the deck: remove the shoulder bolt mounting the height of cut link to the lift handle and reassemble the shoulder bolt in the lowest of the three holes. To lower the deck: remove the shoulder bolts mounting the height of cut link, flip the height of cut link around and reassemble the shoulder bolts in the top of the set of three holes and the bottom hole. Adjusting the Belt Tension To increase the tension on the belt, loosen the jam nuts on the deck rods, then tighten the flange nuts until a ten-pound pull with a spring scale deflects the belt about 1⁄2". Then re-tighten the jam nuts to secure in place. See Fig. 6-8. Flange Lock Nuts Jam Nuts Deck Rods Figure 6-4 To lessen the tension on the belt loosen the flange lock nuts on the deck rods and then loosen the jam nuts until a ten-pound pull with a spring scale deflects the belt about 1⁄2". Then retighten the flange lock nuts. See Fig. 6-8. Deck Wheels WARNING! Keep hands and feet away from the discharge opening of the cutting deck. NOTE: The deck wheels are an anti-scalp feature of the deck and are not designed to support the weight of the cutting deck. The mower deck cutting height can be set using the tractor's deck lift pedal. The deck heights range from 1" to 5". The deck gauge wheel position should be approximately 1⁄4 to 1⁄2" above the ground when the deck is set in the desired height setting. Using the lift pedal, set the deck in the desired height setting, then check the gauge wheel distance from the ground below. If necessary, adjust as follows: 1. Visually check the distance between the front gauge wheels and the ground. If the gauge wheels are near or touching the ground, they should be raised. If more than 1⁄2" above the ground, they should be lowered. Section 6 - Maintenance & Adjustments 31