Cub Cadet 53AJ8CTX750 Hydraulic Oil, Sharpening a Blade, Changing the Spindle Assembly

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Cover

Plate

Spindle

Figure. 7

d.Use a 1-1/8" socket wrench on the pulley side of the spindle to secure.

e.Remove the hex nut using a 1-1/8" wrench.

f.Remove the hex nut.

g.To replace the blade reverse the above process and tighten nut to 100-120 lb-ft.

WARNING:

Never mow with dull blades! Blades that are bent should be replaced! The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag to avoid injury.

3.Sharpening a Blade:

a.Set the parking brake.

b.Clean any debris from the blades. Keep blades sharp and free of build up at all times.

c.Sharpen blades evenly at the original 30° angle to maintain balanced cutting blades. Do not sharpen the underside of the blades. Use a electric blade sharpener, a conventional electric grinder or a hand file to sharpen the blades.

d.Replace any blade with severe nicks or dents that cannot be removed by filing.

e.Check the balance of the blade after sharpening by placing it on a blade bal- ancer. Do not use un-balanced blades.

f.If the blade dips on one end, file stock off of the cutting surface on that end.

Note: Blades that cannot be easily bal- anced—REPLACE.

4.Changing the Blade Drive Belts:

a. Set the parking brake. Remove ignition key and both spark plug caps.

b.Unscrew the wing nuts from the deck cov- ers and remove both covers.

c.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.

d.Remove tension of the PTO belt by moving the belt tensioning rod. Loosen the belt retaining bolt.

e.Pull the tensioner pulley away from the belt and remove the PTO belt then remove the blade drive belt.

f.Reverse the process to install the belt.

Note: When replacing belts do not over- tighten. Adjust the idler pulley so that a ten- pound pull with a spring scale between two pulleys deflects the belt about 1/2".

5.Changing the Spindle Assembly

a.Jack up the front of the mowing deck about one foot and block it in that position.

b.Make sure the blade clutch is disengaged.

c.Remove the deck cover.

d.Remove the drive belts. (See 3. Changing Blade Drive Belts.)

e.Remove the cutter blade. (See 2. Chang- ing a Blade.)

f.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. It is important that you do not overfill the reservoir to allow for fluid expansion.

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Contents Hydrostatic Zero-Turn Commercial Riding Mower Table of Contents Forward General Safety Operations Safety PrecautionsGeneral When Mowing Related to FuelRelated to Batteries Towing Operator Protection System -FoldableSuspension Seat Safety Decals and Labels Shield Missing do not OperateSpecifications When Mowing Operating InstructionsSafety Awareness when Mowing To Mow Grass and Produce a Striped Pat- ternSteering Levers Initial Adjustments Check the fluid levels and tiresOrientation Zero Turn Break-In And Operating Pro- ceduresLubricate all fittings listed in the mainte- nance section Initial OperationPage Mower Cutting Blades Start the EngineParking the Mower Removing the Mower Deck Maintenance ServiceMower Deck Changing a BladeChanging the Spindle Assembly Hydraulic OilSharpening a Blade Adding Hydraulic Oil use Rimula SAE15W40 Stop the engine and remove the key from the ignition switchElectrical Circuit Draining Hydraulic OilSpecific Gravity Freezing Temp F Battery RemovalInstalling the Battery Jump StartingTires BrakesInflation Pressure Bypass Valve Left Side Pump Hydraulic Oil Tank and FilterStorage To Put the Mower Back in Service Maintenance Schedule OIL Chart High Speed Tracking Adjustment Enginge RPM Check and AdjustmentDeck Corner Ball Wheel Roller Settings Deck Center Anti-Scalp Roller SettingsLap Bar Adjustment Deck leveling Procedure Wiring Diagram Page U.S.A Canada