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17

S

ection

 5 — o

peration

IMPORTANT: 

First-time operators should use slower 

speeds. Become completely familiar with the tractor’s 

operation and controls before operating the tractor in at 

higher speed.

4. 

To stop

, move the speed control lever to the “N” neutral 

position.

Important: 

In an sudden situation, fully depress the brake 

pedal to bring the tractor to a stop and then immediately 

move the speed control lever to the “N” neutral position

5. 

Set the parking brake by fully depressing the parking brake 

pedal and keeping it depressed while placing the parking 

brake lever in the ON position. Release the parking brake 

pedal to allow the parking brake to engage.

WARNING! 

Before leaving the operator’s position 

for any reason, disengage the blades, place the 

speed control lever in neutral, engage the parking 

brake, shut engine off and remove the key.

IMPORTANT: 

When stopping the tractor for any reason while 

on a grass surface, always:
1. 

Place the speed control lever in N (neutral), 

2. 

Engage the parking brake, 

3. 

Shut engine off and remove the key. 

Doing so will minimize the possibility of having your lawn 

“browned” by hot exhaust from your tractor’s running engine.

Driving On Slopes

Refer to the SLOPE GAUGE in the Safe Operation section to help 

determine slopes where you may operate the tractor safely.

WARNING! 

Do not mow on inclines with a slope in 

excess of 15 degrees (a rise of approximately 2-1/2 

feet every 10 feet). The tractor could overturn and 

cause serious injury.

• 

Mow up and down slopes, NEVER across.

• 

Exercise extreme caution when changing direction on 

slopes.

• 

Watch for holes, ruts, bumps, rocks, or other hidden 

objects. Uneven terrain could overturn the machine. Tall 

grass can hide obstacles.

• 

Avoid turns when driving on a slope. If a turn must be 

made, turn down the slope. Turning up a slope greatly 

increases the chance of a roll over.

• 

Avoid stopping when driving up a slope. If it is necessary 

to stop while driving up a slope, start up smoothly and 

carefully to reduce the possibility of flipping the tractor 

over backward.

Engaging the Blades

Engaging the PTO 

(blade engage)

 transfers power to the cutting 

deck. To engage the blades, proceed as follows:
1. 

Move the throttle control lever to the FAST (rabbit) 

position.

2. 

Grasp the PTO 

(blade engage)

 lever and pivot it all the way 

forward into the engaged (ON) position.

3. 

Keep the throttle lever in the FAST (rabbit) position for the 

most efficient use of the cutting deck or other (separately 

available) attachments.

IMPORTANT: 

Models with Reverse Caution Mode:  

The engine will automatically shut off if the PTO is engaged with 

the speed control lever in position for reverse travel with the 

ignition key in the NORMAL MOWING position. 

Models without Reverse Caution Mode:  

The PTO 

(blade engage)

 lever must be in the disengaged (OFF) 

position when starting the engine, when traveling in reverse, and 

if the operator leaves the seat. Refer to Safety Interlock Switches 

on page 15.

Using the Deck Lift Lever

To raise the cutting deck, move the deck lift lever to the left, then 

place it in the notch best suited for your application. Refer to 

Setting The Cutting Height earlier in this section.

Mowing

WARNING! 

To help avoid blade contact or a 

thrown object injury, keep bystanders, helpers, 

children and pets at least 75 feet from the machine 

while it is in operation. Stop machine if anyone 

enters the area.

The following information will be helpful when using the cutting 

deck with your tractor:

WARNING! 

Plan your mowing pattern to avoid 

discharge of materials toward roads, sidewalks, 

bystanders and the like. Also, avoid discharging 

material against a wall or obstruction which may 

cause discharged material to ricochet back toward 

the operator.

• 

Do not mow at high ground speed, especially if a mulch kit 

or grass collector is installed.

• 

For best results it is recommended that the first two laps be 

cut with the discharge thrown towards the center. After the 

first two laps, reverse the direction to throw the discharge 

to the outside for the balance of cutting. This will give a 

better appearance to the lawn.

• 

Do not cut the grass too short. Short grass invites weed 

growth and yellows quickly in dry weather.

• 

Mowing should always be done with the engine at full 

throttle. 

• 

Under heavier conditions it may be necessary to go back 

over the cut area a second time to get a clean cut. 

• 

Do NOT attempt to mow heavy brush and weeds and 

extremely tall grass. Your tractor is designed to mow lawns, 

NOT clear brush.

• 

Keep the blades sharp and replace the blades when worn. 

Refer to Cutting Blades in the Service section of this manual 

for proper blade sharpening instructions.

17

S

ection

 5 — o

peration

Summary of Contents for Series 790

Page 1: ...oting Warranty WARNING READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE THIS MACHINE FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJUR...

Page 2: ...plicable to all models MTD reserves the right to change product specifications designs and equipment without notice and without incurring obligation If applicable the power testing information used to...

Page 3: ...ects which ricochet can cause serious injury to the eyes 9 Wear sturdy rough soled work shoes and close fitting slacks and shirts Loose fitting clothes and jewelry can be caught in movable parts Never...

Page 4: ...mselves and others from serious injury 29 If situations occur which are not covered in this manual use care and good judgment Contact your customer service representative for assistance Slope Operatio...

Page 5: ...not shift to neutral and coast downhill Service Safe Handling of Gasoline 1 To avoid personal injury or property damage use extreme care in handling gasoline Gasoline is extremely flammable and the v...

Page 6: ...to protect the environment 15 According to the Consumer Products Safety Commission CPSC and the U S Environmental Protection Agency EPA this product has an Average Useful Life of seven 7 years or 270...

Page 7: ...ren and pets at least 75 feet from the machine while it is in operation DANGER THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury Remove objects whic...

Page 8: ...gauge up or down until the left corner touches the slope See Figure 1 and Figure 2 5 If there is a gap below the gauge the slope is too steep for safe operation See Figure 2 above 1 5 d a s h e d l i...

Page 9: ...e battery terminal is marked Neg 1 Removetheplasticcover ifpresent fromthepositivebattery terminal and attach the red cable to the positive battery terminal with the bolt and hex nut See Figure 3 1 Fi...

Page 10: ...e seat for your tractor was not attached at the factory refer to the following steps NOTE For shipping reasons seats are either fastened to the tractor seat s pivot bracket with a plastic tie or mount...

Page 11: ...cordance with Figure 3 6 Figure 3 6 IMPORTANT Your tractor is shipped with motor oil in the engine However you MUST check the oil level before operating Be careful not to overfill Refer to the the sep...

Page 12: ...Module Figure 4 1 Lawn Tractor controls and features are illustrated in Figure 4 1 and described on the following pages WARNING Read and follow all safety rules and instructions in this manual includ...

Page 13: ...y into the ON position once engine has fired See Figure 4 2B The engine will run with the headlights off in this position To activate the headlights turn the key one more position to the left The engi...

Page 14: ...wn and into the parking brake position and then release the brake pedal to allow the parking brake to engage To release the parking brake depress the brake pedal and the parking brake lever will autom...

Page 15: ...ediately if someone enters the area The REVERSE CAUTION MODE position of the key switch module allows the tractor to be operated in reverse with the blades PTO engaged IMPORTANT Mowing in reverse is n...

Page 16: ...r s parking brake 4 Activate the choke control 5 Turn the ignition key clockwise to the START position After the engine starts release the key It will return to the ON or Normal Mowing position IMPORT...

Page 17: ...position 2 Grasp the PTO blade engage lever and pivot it all the way forward into the engaged ON position 3 Keep the throttle lever in the FAST rabbit position for the most efficient use of the cuttin...

Page 18: ...by raising the discharge chute A unhooking the chute strap from the pin on the cutting deck B and removing the mulch plug from under the discharge chute hinge C This will allow the clippings to disch...

Page 19: ...rain port See inset in Figure 6 2 OPENED CLOSED Figure 6 2 4 Remove the oil fill cap dipstick from the oil fill tube Maintenance WARNING Before performing any maintenance or repairs disengage PTO move...

Page 20: ...inals Always keep the rubber boot positioned over the positive terminal to prevent shorting IMPORTANT If removing the battery for any reason disconnect the NEGATIVE Black wire from it s terminal first...

Page 21: ...ngs from the deck s underside and prevent the buildup of corrosive chemicals Complete the following steps AFTER EACH MOWING 1 Drive the tractor to a level clear spot on your lawn near enough for your...

Page 22: ...is completely depressed or if the tractor s rear wheels can roll with the parking brake applied the brake is in need of adjustment See an authorized MTD Service Dealer to have your brakes properly adj...

Page 23: ...t Points P P Check Spark Plug Condition Gap P P Replace Fuel Filter P NOTE This Operators Manual covers a range of product specifications for various models Characteristics and features discussed and...

Page 24: ...ck proceed as follows 1 Place the PTO Blade Engage lever in the disengaged OFF position and engage the parking brake 2 Lower the deck by moving the deck lift lever into the bottom notch on the right f...

Page 25: ...from the battery Attach to a unpainted part to assure a good connection CAUTION If the jumper battery is installed on a vehicle i e car truck do NOT start the vehicle s engine when jump starting your...

Page 26: ...Figure 7 6 5 Test the blade s balance using a blade balancer Grind metal from the heavy side until it balances evenly NOTE When replacing the blade be sure to install the blade with the side of the bl...

Page 27: ...he right side of the belt and place the narrow V side of the belt into the PTO pulley 11 While holding the belt and pulley together rotate the pulley to the left Continue holding and rotating the pull...

Page 28: ...ed 5 Drain fuel tank Refill with clean fresh gasoline 6 Replace air cleaner paper element or clean foam precleaner is so equipped Engine overheats 1 Engine oil level low 2 Air flow restricted 1 Fill c...

Page 29: ...the seat Refer to page 2 for more information regarding locating your model and serial numbers DESCRIPTION PART NO Drive Belt Mowing Deck 42 Deck 954 04060C Drive Belt Mowing Deck 46 Deck 954 04245 D...

Page 30: ...inch Deck Mulch Kit OEM 190 607 Deluxe Tractor Sunshade OEM 190 679 Bumper 490 900 0025 Deck Wash Kit OEM 190 032 42 inch Two stage Snow Thrower OEM 19A 218 Rear Wheel Weight Kit OEM 190 658 Tire Chai...

Page 31: ...period of two years The warranty period begins on the date the outdoor equipment is delivered to an ultimate purchaser or first placed into service Subject to certain conditions and exclusions as sta...

Page 32: ...cause of the need for repair or replacement of the part That notwithstanding any adjustment of a component that has a factory installed and properly operating adjustment limiting device is still elig...

Page 33: ...Notes 11 33...

Page 34: ...34 Section 11 Notes...

Page 35: ...35 Section 11 Notes...

Page 36: ...ese items may carry a separate manufacturer s warranty Refer to applicable manufacturer s warranty for terms and conditions b Log splitter pumps valves and cylinders have a separate one year warranty...

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