MTD PRO MMZ 2554 Manual de funcionamiento

MMZ 2254, 2554, 2560

25Horsepower

HydrostaticZero-Turn

CommercialRiding

Mower

OPERATOR’S AND SERVICE MANUAL

01004029 Rev 99_2.fm Page 1 Monday, September 27, 1999 8:23 AM

TABLE OF CONTENTS

Foreword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

B. Related to Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

C. When Mowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

A. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8

B. Initial Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

C. Break-In and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Maintenance and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

A. Mower Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

B. Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

C. Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

D. Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

E. Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

G. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Wiring Diagram

Warranty

01004029 Rev 99_2.fm Page 2 Monday, September 27, 1999 8:23 AM

FORWARD

The MMZ Gasoline Powered Hydraulic Driven Rotary Mowers were developed to

provide superb maneuverability, mid-mount cutting capability for professional land-

scapers, commercial lawn service companies, professional turf managers and golf

course superintendents. The machine incorporates many safety features that

should be studied by all operators and maintenance personnel before use. The list

of safety precautions should receive particular attention.

This manual presents all of the operating and maintenance instructions necessary

to keep your mower at peak efficiency. If properly operated and maintained, your

mower will give dependable service.

CAUTION:

Only thoroughly trained persons should operate

and maintain this mower. This machine can cause

serious injury to anyone who misuses it and does

not understand its operation. For their personal

safety, all operators and maintenance personnel are

required to read this entire manual before operating

the mower.

Hazard control and accident prevention are partially

dependent upon the design and configuration of

the equipment. Notwithstanding, these factors are

also dependent upon the awareness, concern, pru-

dence and proper training of the personnel involved

in the operation, transport, maintenance and stor-

age of the equipment.

01004029 Rev 99_2.fm Page 3 Monday, September 27, 1999 8:23 AM

SAFETY PRECAUTIONS

A. General

1. Read this Operator’s Manual before starting the mower. Study the

controls and learn the proper sequence of operation.

2. Do not allow anyone to operate or maintain this machine who has

not read this manual. Never permit children to operate this

machine.

3. Never carry passengers.

4. Do not remove any shields, guards or safety devices. If a shield,

guard or safety device is damaged or does not function, repair or

replace it before operating the mower.

5. Always wear safety glasses and safety shoes when operating or

maintaining this mower. Do not wear loose-fitting clothing.

6. Disconnect the spark plug wires or remove the key from the ignition

to prevent the engine from accidentally starting before performing

any maintenance on this mower.

7. Never run the engine indoors without adequate ventilation.

Exhaust fumes are deadly.

8. To avoid serious burns, do not touch the engine, exhaust pipe or

muffler while the engine is running or until it has cooled after it has

been shut off.

9. The liquid in the battery is dilute sulfuric acid. Always wear safety

glasses and rubber gloves when working on the battery. Do not

overfill the battery.

10. Lead-acid batteries generate hydrogen and oxygen gases which

form an explosive mixture. Keep sparks and flames away at all

times.

11. When looking for oil leaks, never run your hand over hydraulic

hoses, lines or fittings. Never tighten or adjust hydraulic hoses,

lines or fittings while the system is under pressure. If high-pressure

oil penetrates the skin, the oil must be removed within a few hours

by a doctor familiar with this form of injury or serious complications

may result.

B. Related to Fuel

1. Fuel is highly flammable. Please respect it.

2. Do not smoke or permit others to smoke while handling fuel.

3. Always use approved containers for fuel.

4. Always shut off the engine and permit it to cool before removing

the fuel tank cap.

5. Always fill the fuel tank outdoors.

6. If the fuel container spout will not fit inside the fuel tank opening,

use a funnel.

01004029 Rev 99_2.fm Page 4 Monday, September 27, 1999 8:23 AM

7. When filling the fuel tank, stop when the fuel reaches one inch from the

top. This space is necessary for tank expansion.

Do not overfill

8. Wipe up any spilled fuel.

C. When Mowing

1. Keep adults, children and pets away from the area to be mowed.

2. When operating this mower in the forward direction, DO NOT allow

the steering levers to return to the neutral position on their own.

Always maintain a firm grip on the levers, operate them smoothly

and avoid any sudden movements of the levers when starting or

stopping.

3. If the mower is equipped for side discharge, never use the mower

without the discharge chute installed and placed in the down posi-

tion.

4. Always remove debris and other objects from the area to be

mowed.(

Note

: debris and loose grass will reduce traction.)

5. Mow only in daylight.

6. Watch for holes, sprinkler heads and other hidden hazards.

7. Avoid driving too close to trees, creeks, ditches, sand traps and

other obstacles.

8. Before backing up, check behind you and watch where you’re

going.

9. Always reduce speed when making a turn, and when grass is wet.

10. Always mow up and down slopes, never across the slope. Do not

operate on steep slopes and slow down before turning.

11. Be careful when crossing gravel paths or roadways. Always turn off

the blade clutch switch and wait until the blades stop rotating and

raise the cutting deck to the transport position. Always allow other

vehicles to have the right-of-way.

12. If you hit a solid object while mowing, turn off the blade clutch

switch, place the left and right steering levers in the neutral,

opened-out position, move the throttle to slow, set the parking

brake, shut off the engine and take the key from the ignition switch.

Inspect for damage. Repair any damage. Make sure the blades are

in good condition and that the blade bolts are tight before restarting

the engine.

13. Never leave the mower unattended without: turning off the blade

clutch switch; placing the left and right steering levers in the neutral

opened-out position; moving the throttle to slow; setting the parking

01004029 Rev 99_2.fm Page 5 Monday, September 27, 1999 8:23 AM

brake; shutting off the engine and taking the key from the ignition

switch.

14. Never walk or stand on the discharge side of a mower with the

engine running. Turn off the blade clutch switch if another person

approaches while you are operating the mower.

15. Never attempt to operate the traction unit without the mowing deck

attached.

16. Keep the mower and especially the engine and hydraulic compo-

nents clean and free of grease, grass and leaves to reduce the

chance of fire and to permit proper cooling.

SPECIFICATIONS

Engine: 22 HP, 25 HP Kohler

Type: Vertical, Air V-Twin cooled

Air Cleaner: Dual Element

Lube System: Pressurized with oil filter

Starter: 12-volt electric

Traction Drive: Engine to two variable-speed hydraulic pump/motor BDR

units to gearbox on each drive wheel

Hydraulic Tank: 2.0-gallon capacity, One quart filter, and oil cooler

Cutter Deck;Drive: 54", 60", Belt Driven

Clutch: Electric

Deck Lift: Hand lever w/pin lock for height adjustment

Cutting Height: 1-1/2" to 5-1/2"

No. of Blades 3, belt-driven, power take-off from engine

Controls: Engine ignition and start switch; throttle; choke; left and

right steering levers; electric blade clutch switch; parking

brake; mower deck lift

Parking Brake: Internal, mechanical linkage attached to the brake handle

Front Caster Wheels: 13x5 - 6

Tire Pressure: 10 psi Rear, 12 psi front caster

Drive Wheels: w/54"-60" deck, 24x12 - 12

Frame: 2” Steel square tube and plate, all welded construction

Seat: Milsco Adjustable seat with armrests. 5" Adjustment

Fuel Tank: Two 5 gallon w/individual shutoff valves

Ground Speed: 0-8.6 + MPH forward. 0-4.3 MPH reverse

Instrumentation Hour meter, Tachometer, Maintenance-minder

Net Weight: 980 lbs. w/54" deck and 1020 lbs. w/60" deck

01004029 Rev 99_2.fm Page 6 Monday, September 27, 1999 8:23 AM

OPERATING INSTRUCTIONS

A. Controls

Engine Ignition and Start Switch:

(See Figure 1.) Located on the

instrument housing below the right side of the operator’s seat.

When the key is inserted and turned clockwise, 45 degrees, the

ignition circuit is closed. Turning the switch further against spring

pressure starts the engine. The engine will only start if the blade

clutch switch is in the “off” position, the parking brake is engaged

and the left and right steering levers are in the neutral, opened-out

position. The key should always be removed from the switch if the

operator leaves the mower’s seat.

Engine Throttle Control:

(See Figure 2.) Located on the left side

of the mower next to the operator’s seat. Moving the throttle control

from the rear to the front will increase the engine speed from slow

to fast.

Left and Right Steering Levers:

(See Figure 3.) These hinged

levers open out to the side in the neutral position to permit the

operator to be seated or to leave the mower’s seat. The operator,

when seated, can pull the levers up to the operating position, a

comfortable forearm’s length away. These levers control all of the

movements of the mower. Pushing both levers forward causes the

mower to move forward. Pulling both levers back causes the

mower to move backward. Pushing one lever ahead of the other

lever causes the traction wheel on the side where the lever is

ahead to rotate faster than the other traction wheel, making the

mower turn toward the side where the lever is behind. When one

lever is pushed forward and the other lever pulled back the same

Figure. 1 Figure. 2

Ignition Switch

Electric Blade

Clutch Tach and Hour Meter

Engine throttle

Choke Lever

01004029 Rev 99_2.fm Page 7 Monday, September 27, 1999 8:23 AM

amount, one traction wheel will turn in reverse and the mower will

turn within its own length.

In order to start the engine, both steering levers must be opened

out to the side in the neutral position; the parking brake must be

engaged; and the blade clutch switch must be “off”. However, once

the engine starts, the parking brake must be released before the

operator places the steering levers into the operating position or

the engine will automatically shut off.

Note:The Steering Lever will return toward neutral when released, but they

should be placed in neutral by the driver. If the Drive Handles are not placed in neutral,

the tractor may creep.

Electric Blade Clutch Switch:

(See Figure 1.) Located on the

right side of the mower beside the ignition switch. This is an “on/off”

toggle switch that controls the electric blade clutch which supplies

power to the cutting blades through the PTO. The switch must be

turned off to start the engine and should be turned off for safety

any time another person approaches the mower or the mowing

deck is raised to the transport position. Power to the electric clutch

will also be cut off if the operator leaves the operator’s seat.

Parking Brake:

(See Figure 3.) Located on the left side of the trac-

tion unit. The handle is an overcenter lever which applies the inter-

nal drum-type brake on each drive wheel when the handle is pulled

to the rear. The brake must be engaged in order to start the engine.

Deck Lift Handle:

(See Figure 3.)

Located on the right front corner of

the mowing deck.To raise the mowing

deck to the transport position, the

lever is pulled to the rear and moved

inward to lock into a stop for trans-

port. To lower the mowing deck, raise

Brake

Steering Levers

Deck Lift Handle

Figure. 3

01004029 Rev 99_2.fm Page 8 Monday, September 27, 1999 8:23 AM

the deck lift handle and move it outward. This allows the handle to

move forward, lowering the deck to the cutting position.

Fuel Shutoff Valve:

(See Figure 4.)

Located on top of the fuel tank. When

turned in a clockwise direction until it

stops, it will shut off the flow of fuel to

the engine. When turned in a coun-

terclockwise direction it will open and

allow fuel to flow to the engine. Close

this valve if you are not going to run

the mower for a period of 30 minutes

or more to prevent flooding the

engine.

Seat Adjustment Lever:

The Seat

Adjustment Lever is located beneath the seat. The Seat Adjust-

ment Lever is used to move the seat forward and backward. To

place the seat in the desired position pull the seat adjustment lever

to the left then push the seat forward or back to the desired posi-

tion. Release the lever so the seat will lock in place.

Digital Tachometer and Hour Meter:

(See Figure 1) Located on

the right side of the mower in front of the ignition switch. When the

machine is running the tachometer displays engine rpm. When the

machine is off the tachometer displays running time.

10.

Choke Lever:

(See Figure 2) The Choke Lever is located on the

left instrument panel next to the seat. The Choke Lever is operated

manually. Having the Choke Lever in the ON position helps the

engine to start during initial start-up. During normal operation the

Choke Lever should be in the OFF position.

Note:There will be a flashing “LUBE” for each recommended lubrication interval.

There is a flashing “OIL” at each recommended engine oil and filter change.

B. Initial Adjustments

1. Check the fluid levels and tires:

Note:These checks should be made daily, before starting the engine.

a. Fuel: Using a good grade of unleaded, regular gasoline (for

a gasoline engine), fill the fuel tank (beside the engine on

the left or right side of the mower). When the fuel reaches

one inch from the top of the tank, stop. DO NOT OVER-

FILL. Space must be left for expansion.

b. Engine Oil: (Filled at the factory before shipment.) Pull out

the oil dipstick, wipe it off and reinsert it. Pull it out again

and read the oil level. If it is below the operating range, add

Fuel Shutoff Valve

Figure. 4

01004029 Rev 99_2.fm Page 9 Monday, September 27, 1999 8:23 AM

oil through the fill tube using a funnel to bring it up to the

top of the operating range.

Note:Gasoline Engine: Use SAE 10W30 or SAE 10W40 engine oil, rated for ser-

vice SJ.

c. Hydraulic Oil: (Filled at the factory before shipment.) The

hydraulic oil tank is located beneath the operator’s seat.

Always wipe off the area around the oil tank fill neck before

checking the oil level to prevent dirt from contaminating the

oil. Remove the cap and make sure the oil level is up to the

lowest hole on the oil tank fill neck. The top hole is for vent-

ing. If the oil level is low, fill with a good grade of SAE20W-

50 oil.

d. Tires: 10 psi Rear, 30 psi Front Caster Tires

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 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.

Adjust the Mowing Deck:

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 proce-

dures below to set the appropriate 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, remove connection of the spark plugs and using the

transport lever, lower the mowing deck into the cutting posi-

tion.

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:The front edge of the mowing deck should be 1/8"-1/4" below the rear 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.

01004029 Rev 99_2.fm Page 10 Monday, September 27, 1999 8:23 AM

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