ROTARY MOWER J40, J44, J46 Operator's Manual No. 9-50552 J I Case ATenneco Company casecoltingersoll.
INTRODUCTION This manual contains recommended operating procedures, safety rules, adjustments, maintenance information, assembly and mounting instructions. Read this manual carefully before operating your rotary mower. genuine Case replacement parts and the required facilities is in the position to provide proper repairs in the shortest time possible.
SAFETY RULES A A This safety alert symbol indicates important safety messages in this manual. When you see this symbol, carefully read the message that follows and be alert to the possibility of personal injury or death. Regard your rotary mower as a piece of power equipment and be sure this manual is read and understood by all who operate it. Maintain your tractor and rotary mower in top operating condition.
A C A U T I O N : Give complete and undivided attention to the job at hand. A C A U T I O N : Stop engine, disengage attachment drive, set parking brake and remove key when tractor is unattended. A ^^ft^^k ^ ^ ^ ^ ^ ^ ^ A A C A U T I O N : Do not allow anyone other than the operator to ride on the tractor. C A U T I O N : Disengage attachment drive clutch when someone approaches or whenever the mower is in transport or the lifted position.
OPERATING CONTROLS The principle components and controls of your rotary mower are identified in Figure 1 w i t h the same description used throughout this manual. Generally best performance is obtained with the transmission in Low range and the engine running % to full throttle. The throttle should be set as low as practical to obtain maximum fuel economy but high enough to prevent engine lug d o w n or labor which could cause overheating and poor mowing.
4. Figures 2 and 3 illustrate t w o systems for mowing. If the grass is high or heavy, always mow to throw the clippings away f r o m the uncut area. Figure 2. If the grass is light and more thorough mulching is desired, discharge the clippings toward the center of the uncut area. Figure 3. When mowing in this manner, a final strip of mulched clippings about three to four feet wide will remain near the center of the lawn. This can be easily raked up to leave a well groomed appearance. 5.
ADJUSTMENTS a. Raise mower into transport position weight f r o m the height selection lever. C A U T I O N : Disengage attachment drive lever, stop engine and remove keys and spark plug wire{s) before making adjustments. t o relieve b. Pull outward on the height selection knob. c. Move the lever up or d o w n t o the desired height. d. Push knob into the hole selected. 1. Height Selection Lever. See Figure 4 . 2. Gauge Wheels. See Figure 4 .
4. Mower Fore-Aft Leveling Links. See Figure 6. Adjust the leveling links until the distance between the blade tips and the level surface is the same at both the f r o n t and rear of the mower. The forward tip may be slightly lower than the rearward t i p . Never permit the rearward t i p to be lower than the forward t i p . {This doubles power consumption in mowing)! Clean cutting and m i n i m u m horsepower consumption are dependent upon the mower being level fore and aft.
MAINTENANCE ^ ^ ^^^^H^^ C A U T I O N : Disengage attachment drive lever, stop engine and remove keys and spark plug wire(s) before making adjustments. MOWER B L A D E BOLTS 1. Mower Blade Bolts. See Figure 7. Before operating the mower for the first time, the bolts holding the blades. They must be tight. the first 8 hours of operation, check them again. ever the blades are removed, it is good practice to new lockwashers under the bolts, and again tightness after the next 8 hours of operation.
5. Sharpening Blades. See Figure 9. 7. Cleaning the mower deck. With the engine shut off and after the blades have stopped spinning, check the mower blades periodically for nicks or dullness. Damaged, dull or improperly sharpened blades can cause a shattered, rather than, clean cut and brown areas of grass may develop. Refer t o Figure 9 for the correct sharpening angle. With the engine shut off and after the blades have stopped spinning, check and clean out the inside of the deck housing periodically.
INSTALLATION I. ASSEMBLY 2. Select the appropriate belt using application chart on page 3 . The belt part number is stamped into the outer covering of the belt. Select the two short lift links if installation is to be on a low clearance (200 or 600 series) tractor. 1. Before assembling the mower, lay o u t and check the individual components. See Figure 12.
II. MOUNTING 1. Locate tractor on a level surface. Check tires for equal and recommended pressures as found in your tractor Operator's Manual. 2. Before attaching the mounting bracket, t u r n the adjusting crank counterclockwise as far as possible to provide mounting clearance at the front axle. Refer to Figure 14. ADJUSTING CRANK FIGURE 14 13 casecoltingersoll.
3. Position the mounting bracket under the f r o n t of the tractor and onto the anchor pins as shown in Figure 15. Raise the f r o n t of the bracket and release the snap fast pins to lock in place. NOTE 4. Lower the lift arms f u l l y . Position the lift links on the inside o f the lift arms. Put a plain washer on each clevis pin and install in the f r o n t hole o f the lift arm f r o m the inside. Secure the links w i t h the safety pins at the outside. Refer t o Figure 15.
r 10. Check to make sure the belt is properly located in each pulley. Turn the adjusting crank counterclockwise t o tension the belt until the idler spring coils open 1/8 inch (approximately the thickness of two nickels. See Figure 5 and 14.) Disengage the attachment drive lever and reconnect the spark plug wire(s). IMPORTANT Before follow in the section operating the mower, review and the recommendations outlined adjustments and Maintenanceof this manual.
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