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33

GDOC-100223CN Rev. A

The outdoor equipment engine owner will not be charged for diagnostic labor that is directly associated with diagnosis of a defec-

6. 

tive, emission-related warranted part, provided that such diagnostic work is performed at a warranty station.
MTD Consumer Group Inc is liable for damages to other engine or equipment components proximately caused by a failure under 

7. 

warranty of any warranted part.
Throughout the off-road engine and equipment warranty period stated above, MTD Consumer Group Inc will maintain a supply of 

8. 

warranted parts sufficient to meet the expected demand for such parts.
Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without 

9. 

charge to the owner. Such use will not reduce the warranty obligations of MTD Consumer Group Inc.
Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted 

10. 

add-on or modified parts by the ultimate purchaser will be grounds for disallowing a warranty claims. MTD Consumer Group Inc 

will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.

WARRANTED PARTS:

The repair or replacement of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty 

coverage if MTD Consumer Group Inc demonstrates that the outdoor equipment engine has been abused, neglected, or improperly 

maintained, and that such abuse, neglect, or improper maintenance was the direct 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 eligible for warranty coverage. Further, the coverage under this warranty extends only to parts that were present on the 

off-road engine and equipment purchased.
The following emission warranty parts are covered (if applicable):
(1) Fuel Metering System

Cold start enrichment system (soft choke)

• 

Carburetor and internal parts (or fuel injection system)

• 

Fuel pump

• 

Fuel tank

• 

(2) Air Induction System

Air cleaner

• 

Intake manifold

• 

(3) Ignition System

Spark plug(s)

• 

Magneto ignition system

• 

(4) Exhaust System

Catalytic converter

• 

SAI (Reed valve)

• 

(5) Miscellaneous Items Used in Above System

Vacuum, temperature, position, time sensitive valves and switches

• 

Connectors and assemblies

• 

(6) Evaporative Control

Fuel hose

• 

Fuel hose clamps

• 

Tethered fuel cap

• 

Carbon canister

• 

Vapor lines

• 

NOTE: 

If you require warranty service in Canada and your product was sold by MTD Products Limited within Canada to the retailer 

you purchased it from in Canada then the MTD Consumer Group Inc portion of this warranty will be honored by MTD Products 

Limited in Canada.

Summary of Contents for Series 79G

Page 1: ...ty 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 INJURY P O Box 1386 97 Kent Avenue KITCHENER ONTARIO CANADA N2G 4J1 Model Series 79G Hydrostatic Lawn Tractor 769 05994A 1 24 11 OUTDOOR ...

Page 2: ...at the time of printing Review this manual frequently to familiarize yourself with the machine its features and operation Please be aware that this Operator s Manual may cover a range of product specifications for various models Characteristics and features discussed and or illustrated in this manual may not be applicable to all models The manufacturer reserves the right to change product specific...

Page 3: ...movable parts Never operate this machine in bare feet or sandals Be aware of the mower and attachment discharge direction 10 and do not point it at anyone Do not operate the mower without the discharge cover or entire grass catcher in its proper place Do not put hands or feet near rotating parts or under the 11 cutting deck Contact with the blade s can amputate hands and feet A missing or damaged ...

Page 4: ... up the slope or if you feel uneasy on it do not mow it For your safety use the slope gauge included as part of this manual to measure slopes before operating this machine on a sloped or hilly area If the slope is greater than 15 degrees as shown on the slope gauge do not operate this machine on that area or serious injury could result Do Mow up and down slopes not across Exercise extreme 1 cautio...

Page 5: ... When practical remove gas powered equipment c from the truck or trailer and refuel it on the ground If this is not possible then refuel such equipment on a trailer with a portable container rather than from a gasoline dispenser nozzle Keep the nozzle in contact with the rim of the fuel d tank or container opening at all times until fueling is complete Do not use a nozzle lock open device Extingui...

Page 6: ...Agency EPA this product has an Average Useful Life of seven 7 years or 270 hours of operation At the end of the Average Useful Life have the machine inspected annually by an authorized service dealer to ensure that all mechanical and safety systems are working properly and not worn excessively Failure to do so can result in accidents injuries or death Do not modify engine To avoid serious injury o...

Page 7: ... deck Contact with the blade s can amputate hands and feet WARNING THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury WARNING THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury BYSTANDERS Keep bystanders helpers children and pets at least 75 feet from the machine while it is in operation WARNING S...

Page 8: ... t i n g a 1 5 s l o p e Use this page as a guide to determine slopes where you may not operate safely WARNING Do not operate your lawn mower on such slopes Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury Operate riding mowers up and down slopes never across the face of slopes ...

Page 9: ...o the negative battery terminal with the bolt and hex nut See Fig 3 1 Position the red rubber boot over the positive battery 3 terminal to help protect it from corrosion NOTE If the battery is put into service after the date shown on top side of battery charge the battery as instructed in the Maintenance section your Operator s Manual prior to operating the tractor Shipping Brace Removal WARNING M...

Page 10: ...r knob screw if applicable at this 4 time To adjust the position of the seat loosen the hex screw or 5 knob screw if applicable on the bottom of the seat Slide the seat forward or backward as desired Retighten the hex screw or knob screw if applicable See Fig 3 5 Knob Screw Adjust Hex Screw Adjust Attaching The Steering Wheel If the steering wheel for your tractor did not come attached the hardwar...

Page 11: ...oil level before operating Be careful not to overfill IMPORTANT It is important to NOT top off your fuel tank when filling with fuel Leave an expansion area available inside the fuel tank to allow for the fuel to expand and for proper ventilation Otherwise the unit may not run properly Fill the tank in accordance with Figure 3 6 Setting the Deck Gauge Wheels ifsoequipped Move the tractor on a firm...

Page 12: ...ols and Features 4 12 Lawn Tractor controls and features are illustrated in Fig 4 1 and described on the following pages WARNING Read and follow all safety rules and instructions in this manual including the entire Operation section before attempting to operate this machine Failure to comply with all safety rules and instructions may result in personal injury ...

Page 13: ...ew lawn tractor will have one of the following ignition switches Use Fig 4 3 to identify which switch your machine utilizes and follow these instructions for proper operation 3 Position Ignition Switch The ignition switch is activated to start the engine Insert key into the ignition switch and turn clockwise to the START position Release the key into the ON position once engine has fired See Fig 4...

Page 14: ... lever to slow the ground speed of the lawn tractor Depressing the parking brake pedal with the speed control lever engaged as part of regular operation will result in premature wear of the drive belt IMPORTANT Do not attempt to change the direction of travel when the tractor is in motion Serious damage to the tractor s transmission could result Always bring the tractor to a complete stop before m...

Page 15: ...ged ON position with the speed control in Reverse Warning Do not operate the tractor if the interlock system is malfunctioning This system was designed for your safety and protection Reverse Caution Mode Modelsequippedwithignitionswitchmodule Warning Use extreme caution while operating the tractor in the REVERSE CAUTION MODE Always look down and behind before and while backing Do not operate the t...

Page 16: ...he ignition key clockwise to the START position After 5 the engine starts release the key It will return to the ON or Normal Mowing position IMPORTANT Do NOT hold the key in the START position for longer than ten seconds at a time Doing so may cause damage to your engine s electric starter After the engine starts deactivate the choke control and 6 place the throttle control in the FAST position NO...

Page 17: ... for the 3 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...

Page 18: ...ydrostatic bypass rod outward then down and to 2 the left to lock it in place NOTE The transmission will NOT engage when the hydrostatic bypass rod is pulled out Return the rod to its normal position prior to operating the tractor IMPORTANT Never attempt to move the tractor manually without first engaging the hydrostatic relief valve Doing so will result in serious damage to the tractor s transmis...

Page 19: ... drain valve then pull b outward to begin draining oil After the oil has finished draining push the end of the oil drain valve back in until the tabs click into place Re cap the end of the oil drain valve to keep debris from entering the drain port Maintenance WARNING Before performing any maintenance or repairs disengage PTO move shift lever into neutral position set parking brake stop engine and...

Page 20: ...eep 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 followed by the POSITIVE Red wire When re installing the battery always connect the POSITIVE Red wire its terminal first followed by the NEGATIVE Black wire Be certain that the wires are connected to the correct t...

Page 21: ...eturn to the operator s position and engage the PTO Keep the cutting deck running for a minimum of two minutes allowing the underside of the cutting deck to thoroughly dry Adjustments WARNING Never attempt to make any adjustments while the engine is running except where specified in the operator s manual Leveling the Deck NOTE Check the tractor s tire pressure before performing any deck leveling a...

Page 22: ...ly behind the hex cap screw just loosened clockwise up or counterclockwise down The deck is properly balanced when both blade tip measurements taken earlier are equal Retighten the hex cap screw on the left deck hanger 5 bracket when proper adjustment is achieved Seat Adjustment Refer to the Set Up and Assembly section of this manual for seat adjustment instructions Parking Brake Adjustment WARNIN...

Page 23: ...ts 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 or illustrated in this manual may not be applicable to all models The manufacturer reserves the right to change product specifications designs and equipment without notice and without incurring obligation I...

Page 24: ...eck have two deck idler pulleys To remove the cutting deck proceed as follows Place the PTO 1 Blade Engage lever in the disengaged OFF position and engage the parking brake Lower the deck by moving the deck lift lever into the 2 bottom notch on the right fender Removing the self tapping screw A that secures the belt 3 keeper rod from around the tractor s engine pulley then remove the belt keeper r...

Page 25: ...nd reproductive harm Wash hands after handling caution If removing the battery disconnect the NEGATIVE Black wire from it s terminal first followed by the POSITIVE Red wire When re installing the battery always connect the POSITIVE Red wire its terminal first followed by the NEGATIVE Black wire On 42 46 Decks Looking at the cutting deck from the 7 left side of the tractor locate the deck support p...

Page 26: ...s Fuse One 20 AMP fuse is installed in your tractor s wiring harness to protect the tractor s electrical system from damage caused by excessive amperage If the electrical system does not function or your tractor s engine will not crank first check to be certain that the fuse has not blown It can be found at the rear of the unit underneath the fender located by the battery WARNING Always use a fuse...

Page 27: ...pulley Route the new belt as shown in and Fig 7 9 6 Remount the belt guards removed earlier 7 For 42 46 Decks To change or replace the deck belt on your tractor proceed as follows Remove the deck as instructed earlier in this section 1 Remove the belt covers by removing the hex washer 2 screws that fasten them to the deck See Fig 7 8 It may also be necessary to loosen the hex nut on the left 3 idl...

Page 28: ...28 Section 7 Service 28 Section 7 Service Figure 7 9 Deck Idler Pulley Engine Pulley Idler Bracket 38 Inch Deck Figure 7 10 42 46 Inch Deck ...

Page 29: ...d 4 Drain fuel tank Refill with clean fresh 5 gasoline Replace air cleaner paper element or clean 6 foam precleaner is so equipped Engine overheats Engine oil level low 1 Air flow restricted 2 Fill crankcase with proper amount and 1 weight of oil Clean grass clippings and debris from around 2 the engine s cooling fins and blower housing Engine hesitates at high RPM Spark plug gap too close 1 Remov...

Page 30: ...type of ground engaging attachments e g tiller or moldboard plow Use of this type of equipment WILL void the tractor s warranty Model Number Description OEM 190 116 38 inch Deck Mulch Kit 19A30006OEM 42 inch Deck Mulch Kit 19A30005OEM 46 inch Deck Mulch Kit OEM 190 607 Deluxe Tractor Sunshade OEM 190 679 Bumper OEM 190 183 Deck Wheel Kit 38 OEM 190 180 Double Bagger Kit 38 19A30003OEM Double Bagge...

Page 31: ... information regarding locating your model and serial numbers DESCRIPTION PART NO Drive Belt Mowing Deck 38 Deck 954 04062 Drive Belt Mowing Deck 42 Deck 954 04060B Drive Belt Mowing Deck 46 Deck 954 04219 Deck Blade 38 Deck 942 0610A Deck Blade 42 Deck 942 04308 Deck Blade 46 Deck 942 04290 Deck Spindle 38 Deck 918 04474A Deck Spindle 42 Deck 918 04822A Deck Spindle 46 Deck 618 04865A Battery 925...

Page 32: ...ays If you have a question regarding your warranty coverage you should contact the MTD Consumer Group Inc Service Department In the U S A MTD LLC at P O Box 361131 Cleveland Ohio 44136 0019 or call 1 800 800 7310 or 1 330 220 4683 or log on to our Web site at www mtdproducts com In Canada MTD Products Limited Kitchener ON N2G 4J1 or call 1 800 668 1238 or log on to our Web site at www mtdcanada co...

Page 33: ...ligible for warranty coverage may be excluded from such warranty coverage if MTD Consumer Group Inc demonstrates that the outdoor equipment engine has been abused neglected or improperly maintained and that such abuse neglect or improper maintenance was the direct cause of the need for repair or replacement of the part That notwithstanding any adjustment of a component that has a factory installed...

Page 34: ...s blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sold or exported outside of Canada including possessions and territories f Replacement parts that are not genuine MTD parts g Tr...

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