User manual MTD 310-550

[. . . ] The machine incorporates many safety features that should be studied by all operators and maintenance personnel before use. The list of safety precautions should receive particular attention. This manual presents all of the operating and maintenance instructions necessary to keep your mower at peak efficiency. If operated and maintained properly, your mower will give dependable service. CAUTION: Only thoroughly trained persons should operate and maintain this mower. [. . . ] Remove ignition key and both spark plug caps. Unscrew the wing nuts from the deck covers and remove both covers. Using a 1/2" socket breaker bar or socket rachet insert the male end into the 1/2" opening in the lower idler arm assembly and pull the idler arm clockwise. While holding the idler arm back, loosen the blade drive belt from the pulley and slide the belt away from the pulley. Remove tension of the PTO belt by moving the belt tensioning rod. Loosen the belt retaining bolt. 15 Cover Plate Spindle Figure. Pull the tensioner pulley away from the belt and remove the PTO belt then remove the blade drive belt. Reverse the process to install the belt. Hydraulic Tank Note: When replacing belts do not overtighten. Adjust the idler pulley so that a tenpound pull with a spring scale between two pulleys deflects the belt about 1/2". Adding Hydraulic Oil (use SAE20W 50) Place the Mower on a level surface and engage the parking brake. Stop the engine and remove the key from the ignition switch. Clean the area around the Hydraulic Oil fill neck. Replace and retighten nuts. Hydraulic pumps c. Store the battery with a full charge. A discharged battery will freeze (refer to the table below). Specific Gravity 1. 265 1. 250 1. 200 Figure. 9 Unfasten hose and drain from this side of both pumps. Freezing Temp (°F) -71 -62 -16 5 16 1. 150 1. 100 Coat new filter seal with oil before installation. Install new hydraulic oil filter filled with new oil. Add proper amount of hydraulic oil to reservoir. Add proper amount of hydraulic oil to reservoir and repeat step L. j. d. Recharge battery when ever the specific gravity value is less than 1. 225 3. Battery Removal Warning: When removing the cables from the battery follow these steps to avoid a short between the wrench and the frame. C. Electrical Circuit Danger: Read General Safety Precautions Nos. Installing the Battery Note: The battery is delivered from the factory fully charged and filled with electrolyte. Battery: The battery is located beneath the operator’s seat. Remove the fillcaps and check the level of the liquid electrolyte in the battery every 50 operating hours. If the level in any of the six cells has dropped below the bottom of the split ring inside the fill hole, refill the cell with distilled water. [. . . ] 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. [. . . ]