Cub Cadet 3654, 3660 service manual Adjust the Mowing Deck Proper Angle or Pitch

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Note: New tires are overinflated in order to properly seat the bead to the rim. The

normal working pressure for the traction tires is 8-10 psi. The front caster wheels should be inflated to 25-30 psi.

2.Check that all Nuts, Bolts and Screws are Tight.

3.Check the tension of the deck drive belts.

a.Remove the deck cover

b.The tension of the deck drive belts are maintained by a spring mechanism that adjusts for wear and stretch.

c.Examine the belts for cuts, fraying, and excessive wear. Replace if any of these are detected.

d.Replace the deck cover.

4.Adjust the Mowing Deck Proper Angle or Pitch:

The cutting height is set anywhere in the range of 1-1/2" to 5-1/2". You may need to adjust the mowing deck to achieve the proper angle for mowing. Follow the procedures below to set the appro- priate angle to the mowing deck.

a.Park the mower on a flat paved surface, engage the parking brake, shut off the engine, remove the key from the ignition switch, disconnect the spark plug wires and using the transport lever, lower the mowing deck into the 4" height of cut position. (The 4" height of cut position is recommended in order for one to see and obtain a measurement. Any height of cut position is acceptable as long as a proper measurment can be taken.)

b.Using a ruler, pencil and paper, measure and note the dis- tance from the paved surface to the bottom edge of the mowing blade at the front and the back of the deck on each side of the mower. (Four dimensions.) NOTE: When mea- susring

Note: The front blade edge of the mowing deck should be 1/8"-3/8" below the rear

blade edge of the deck so that the blades are cutting grass in only the front half of their circular path. This decreases friction and reduces the drive power required.

Note: While adjusting the mower decks proper angle and side to side leveling,

raise and lower the deck in order for the deck to “settle”. Occasionally, if the deck is not raised and lowered improper adjustment occurs. Improper adjustment especially occurs when the unit is new and pivot points and linkages are caught up in “fresh” paint.

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Contents Commercial Riding Mower Table of Contents Forward General Safety PrecautionsRelated to Fuel When Mowing Specifications Operating Instructions ControlsSeat Adjustment Lever The Seat Initial Adjustments and Service Check the fluid levels and tiresAdjust the Mowing Deck Proper Angle or Pitch Leveling the Deck Side to Side Break-In And Operation Start the EnginePage Parking the Mower Maintenance and ServiceMower Deck Removing the Mower DeckChanging a Blade Sharpening a BladeChanging the Blade Drive Belts Stop the engine and remove the key from the ignition switch Changing the Spindle AssemblyHydraulic Oil Electrical Circuit Draining Hydraulic OilInstalling the Battery Battery RemovalSpecific Freezing Gravity Temp F Jump Starting Page Tires Inflation PressureBrakes Hydraulic System Hydraulic Oil Tank and FilterRemoving the cap to prevent dirt from contaminating the oil Page To Put the Mower Back in Service StorageEvery 25 Hour Checks Maintenance ScheduleDaily Checks Weekly or Every 50 Hour ChecksEvery 100 Hour Checks Oil wear points. Follow the Oiling ChartYearly Checks Lubrication Chart Wiring Diagram Equipment TWO-YEAR Limited Warranty
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