MTD MMZ 2554, MMZ 2560, MMZ 2254 service manual Tires, Inflation Pressure

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the blade clutch switch is turned on.This electric clutch is a fairly trouble free device. If a problem develops and the blades do not turn, first check the 7.5 amp fuse in the yel- low, 16-gauge wire between terminal “L” (for the Gasoline Engine) on the ignition switch and the hour meter and then investigate the wiring harness and the connections to the seat switch, the blade clutch switch and the electric blade clutch. Then check out the seat switch, the blade clutch switch and finally the electric blade clutch.

D.Tires

The two front wheels are caster wheels that are free to swivel to accommodate the direction of the MMZ.

The two rear wheels are used to propel the MMZ in the direction of input from the drive handles. Inflation pressure of the rear tires is important for stability while the MMZ is in operation. If the tire diameter is not equal between the two tires, the MMZ will pull to one side.

1.Inflation Pressure:

a.Traction Tires—20 psi max; 8-10 psi recommended

b.Front Caster Wheel—40 psi max; 25-30 psi recommended

c.Cutting Deck Ball Wheels—Solid Polyurethane.

Use the Following guidelines for maintaining the tires:

a.Balance inflation pressure between the rear tires to help maintain straight travel (see tire side wall for proper inflation pressure).

b.Keep the valve caps tightened to prevent air pressure loss.

2.Leaking Tires: When a flat tire occurs, repair or replace immedi- ately. The normal procedure is to remove the wheel and replace it with a spare. Take the leaking tire to a maintenance area and repair. If a tire is getting soft, park the mower on the nearest level, paved area. If the leaking tire is on a traction wheel, put blocks on each side of the opposite traction wheel and jack up the tire that leaks about an inch off the ground. Loosen and remove the lug nuts and remove the wheel. Mount a spare wheel and tire, replace the lug nuts, and using a torque wrench, tighten them to 60 ± 10 ft- lbs.

If the leaking tire is on a front caster wheel, block both traction wheels and raise the caster wheel so that the tire is an inch off the ground. Loosen and remove the locknut from the axle assembly and pull the axle assembly from the caster yoke. The wheel and

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Contents Commercial Riding Mower Table of Contents Forward Safety Precautions GeneralRelated to Fuel When Mowing Specifications Controls Operating InstructionsPage Initial Adjustments Seat Adjustment Lever The SeatCheck the fluid levels and tires Vice SJ Lubricate all fittings listed in the maintenance section Break-In And OperationStart the Engine Page Mower Deck Maintenance and ServiceParking the Mower Removing the Mower DeckChanging a Blade Changing the Blade Drive Belts Changing the Spindle Assembly Stop the engine and remove the key from the ignition switchHydraulic Oil Draining Hydraulic Oil Electrical CircuitBattery Removal Installing the BatterySpecific Freezing Gravity Temp F Jump Starting Page Inflation Pressure TiresBrakes Hydraulic Oil Tank and Filter Hydraulic SystemRemoving the cap to prevent dirt from contaminating the oil Page Storage To Put the Mower Back in ServiceDaily Checks Maintenance ScheduleEvery 25 Hour Checks Weekly or Every 50 Hour ChecksCheck the oil in the hydraulic reservoir Yearly ChecksLubrication Chart Wiring Diagram Page Equipment TWO-YEAR Limited Warranty
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