Service Miscellaneous

c CAUTION: Avoid injury! Explosive separation of a tire and rim parts can cause serious injury or death:

· Do not attempt to mount a tire without the proper equipment and experience to perform the job.

· Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure. Never weld or heat a wheel and tire assembly. The heat can cause an increase in air pressure resulting in a tire explosion. Welding can structurally weaken or deform the wheel.

· When inflating tires, use a clip-on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly.

· Check tires for low pressure, cuts, bubbles, damaged rims or missing lug bolts and nuts.

1. Check tires for damage.

M56974

2. Check tire pressure with an accurate gauge.

3. Add or remove air, if necessary:


Tire Size	Pressure-kPa (psi)
Front Mower Drive Tires	60 kPa (8 psi)
Front Mower Rear Tires	100 kPa (15 psi)
Mower Deck Caster Tires	310 kPa (45psi)

Diesel Fuel Specifications

In general, diesel fuels are blended to satisfy the low air temperature requirements of the geographical area in which they are sold.

Diesel fuel is usually specified to ASTM D975 and sold as either Grade 1 for cold air temperatures or Grade 2 for warm air temperatures.

If diesel fuels being supplied in your area DO NOT meet any of the above specifications, use diesel fuels with the following equivalent properties:

· Cetane Number 40 (minimum). A cetane number greater than 50 is preferred, especially for air temperatures below -20°C (-4°F) or elevations above 1500 m (5000 ft).

· Cold Filter Plugging Point (CFPP). The temperature at which diesel fuel begins to cloud or jell. Use diesel fuels with a CFPP which is at least 5°C (9°F) below the expected low air temperature.

· Sulfur Content of 0.05% (maximum). Diesel fuels for highway use in the United States now require sulfur content to be less than 0.05%. If diesel fuel being used has a sulfur content greater than 0.5%, reduce the service interval for engine oil and filter by 50%.

Bio-Diesel Fuels with bio-degradable properties that meet specification DIN 51606 or equivalent may be used.

Consult your local diesel fuel distributor for properties of the diesel fuel available in your area.

Lubricity

Diesel fuel must have adequate lubricity to ensure proper operation and durability of fuel injection system components. Fuel lubricity should pass a minimum of 3300 gram load level as measured by the BOCLE scuffing test.

Fuel Storage


IMPORTANT: Avoid damage! DO NOT USE GALVANIZED CONTAINERS-diesel fuel stored in galvanized containers reacts with zinc coating in the container to form zinc flakes. If fuel contains water, a zinc gel will also form. The gel and flakes will quickly plug fuel filters and damage fuel injectors and fuel pumps.

It is recommended that diesel fuel be stored only in a clean, approved polyethylene plastic container without any metal screen or filter. This will help prevent any accidental sparks from occurring. Store fuel in an area that is well ventilated to prevent possible igniting of fumes by an open flame or spark. This includes any appliance with a pilot light.


IMPORTANT: Avoid damage! Keep all dirt, scale, water or other foreign material out of fuel.

Keep fuel in a safe, protected area and in a clean, properly marked diesel fuel container. Do not use de-icers to attempt to remove water from fuel. Do not use de-icers to attempt to remove water from fuel. Do not depend on fuel filters to remove water from fuel. It is recommended that a water separator be installed in the storage tank outlet. Be sure to properly discard unstable or contaminated diesel fuel and/or their containers when necessary.

Refueling Machine

MIF

c CAUTION: Avoid injury! Handle fuel with care, it is highly flammable:

·DO NOT refuel machine while you smoke, when machine is near an open flame or sparks, or when engine is running. STOP engine.

· Fill fuel tank outdoors.

· Prevent fires: clean oil, grease and dirt from machine. Clean up spilled fuel immediately.

· Do not store machine with fuel in tank in a building where fumes may reach an open flame or spark.

· To prevent fire and explosion caused by static electric discharge while filling tank, use a non-metal fuel container. If you use a funnel, MAKE SURE IT IS PLASTIC. Avoid using a funnel which has a metal screen or filter.

· Use only clean approved fuel containers and funnels.

· Store fuel in an area protected from dust, moisture and other contamination.


IMPORTANT: Avoid damage! Avoid spilling fuel. Fuel can damage plastic and painted surfaces. Fuel tank capacity is 26.5 L (7.0 gal).

MIF

· Remove any debris from top of fuel tank filler area.

· Never use fuel that is stale or has been stored for a long period of time.

· Fill fuel tank at the end of each day's operation. This helps to keep condensation out of fuel tank.

Filling Fuel Tank

M96776

1. Remove fuel tank cap (A).

2. Fill fuel tank to the FULL LEVEL (B) at the end of each day's operation. This helps to keep condensation out of fuel tank.

3. Install fuel tank cap.

4. Check that the fuel shutoff valve (C) is in the vertical (OPEN) position before you start the engine.

Check Wheel Bolt Torque

1. Check wheel bolt torque after each use for the first 100 hours of operation. Use a torque wrench to tighten bolts to 80 N·m (60 lb-ft).

M56974

Adjusting The Hood Latch

NOTE: The battery has been removed for this picture.

M73440

1. Loosen the two nuts (A).

2. Move the latch up or down to the desired position.

3. If the adjustment is correct, the latch should hold the hood tightly. You should have to push the hood down slightly when you close it to latch the hood.

Checking Mower Blade Stop Time

To check blade stop time:

1. Run engine at half-throttle.

M96731

2. Engage PTO.

3. Move throttle lever to fast idle position.

4. Push PTO knob down and begin timing.

5. Watch mower blade drive belt. Note time when belt stops rotating.

6. If belt stop time is more than six seconds, adjust PTO clutch.

Adjusting PTO Clutch

c CAUTION: Avoid injury! Stop engine before you adjust clutch.

PTO clutch is on engine crankshaft. Adjust clutch if blade stop time is more than 6 seconds. See Checking Blade Stop Time above.


IMPORTANT: Avoid damage! Turn each of the adjusting nuts same number of turns. You may want to mark brake plate and nuts before you adjust them to help keep track of turns.

M73328

1. Tighten three nuts (A) 1/2 turn.

2. Check blade stop time. (See "Checking Mower Blade Stop Time" in Service Miscellaneous section.)

3. If stop time is more than 5 seconds, tighten three nuts 1/4 turn.

4. Start engine and listen for clutch scraping. If clutch is scraping, stop engine and loosen nuts 1/4 turn.

5. Check stop time.

6. Adjust nuts until stop time is between 3 and 5 seconds.

Introduction

Safety Signs

Controls

Operating Machine

Operating Mower Deck

Lawn Care

Replacement Parts

Service Machine Safely

Service Interval Chart

Service Engine

Service Transmission

Service Steering And Brakes

Service 48 & 54 Inch Mower Deck

Service 60 Inch Mower Deck

Service Electrical