User manual MTD M48-KHS

[. . . ] Hydrostatic Zero-Turn Riding Mower MODEL 18HP Kohler 48" Stamped Deck OPERATOR’S AND SERVICE MANUAL TABLE OF CONTENTS Foreword. 27 Warranty This product may be covered by one or more of the following patents: D409, 208; 5, 946, 894; 6, 070, 690 2 FORWARD The Hydrostatic Zero-Turn Riding Mower provides superb maneuverability. The machine incorporates many safety features that should be studied by all operators before use. This manual presents all of the operating and maintenance instructions necessary to keep your mower at peak efficiency. [. . . ] Check the balance of the blade after sharpening by placing it on a blade balancer. If the blade dips on one end, file stock off of the cutting surface on that end. Note: Blades that cannot be easily balanced—REPLACE. 3. WARNING: 15 Changing the Blade Drive Belts: a. 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 Cover Plate Spindle Figure. 7 blade drive belt from the pulley and slide the belt away from the pulley. 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 Adding Hydraulic Oil (use SAE20W 50) Place the Mower on a level surface and engage the parking brake. Pour hydraulic oil into the reservoir up to the lowest hole in the oil tank fill neck, if necessary. Draining Hydraulic Oil Used hydraulic oil must be disposed of properly. Do not pour it down a drain or sewer, or dump it on open land, this creates an environmental hazard. Please be aware of the environment when disposing of used oil. 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". 4. Changing the Spindle Assembly a. Jack up the front of the mowing deck about one foot and block it in that position. Using a wrench or socket rachet remove four hex nuts, and the four hex head cap screws. Remove the spindle assembly. B. Hydraulic Oil WARNING: Never overfill the hydraulic units. Damage can occur if the oil level is not within the proper operating range. Note: When adding hydraulic oil, do so in small quantities and recheck the oil level before adding more. Place a suitable container (at least 2 gallon) under the hydraulic reservoir and filter. Remove the drain plug from the bottom of the hydraulic oil tank to drain. Replace and retighten nuts. Transmission 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. 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. [. . . ] Adjust the rear jam nut at Point D to take the “slack out of the threaded rod. The final adjustment would be to take the “slack” out of the left rear linkage (Point D) by adjusting the jam nuts on the eyebolt. Loosen the jam nuts and tighten the upper nut to remove “slack”. In many cases it will be necessary to adjust deck height using both eyebolt adjustments and pitch adjustment to achieve the correct blade-toground heights. [. . . ]