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FORM NO. 769-00565.fm

(11/2002)

PRINTED IN U.S.A.

Transmatic Lawn Tractor

Models 660 – 688

Operator’s Manual

Warning: 

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, 

brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or 
state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California 
the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws 
apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the 
service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

TROY-BILT LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

Summary of Contents for 660 - 688

Page 1: ... laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact t...

Page 2: ... For future reference please copy the model number and the serial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine related issues with regards to performance power rating specifications warranty and service Please refer to the engine manufacturer s Owner s Operator s Manual packed separately with your unit for more information CALL...

Page 3: ...Plan your mowing pattern to avoid discharge of material 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 8 Always wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect your eyes Thrown objects which ricochet ca...

Page 4: ...ss can hide obstacles 3 Use slow speed Choose a low enough speed setting so that you will not have to stop or shift while on the slope Tires may lose traction on slopes even though the brakes are functioning properly Always keep machine in gear when going down slopes to take advantage of engine braking action 4 Follow the manufacturer s recommendations for wheel weights or counterweights to improv...

Page 5: ...s powered equipment 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 d Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete Do not use a nozzle lock open device e Extinguish all cigarettes cigars ...

Page 6: ...tc to protect the environment WARNING YOUR RESPONSIBILITY Restrict the use of this power machine to persons who read understand and follow the warnings and instructions in this manual and on the machine WARNING GO UP AND DOWN SLOPES NOT ACROSS AVOID SUDDEN TURNS DO NOT OPERATE THE UNIT WHERE IT COULD SLIP OR TIP IF MACHINE STOPS GOING UPHILL STOP BLADE S AND BACK DOWNHILL SLOWLY DO NOT MOW WHEN CH...

Page 7: ...P E 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 If operating a walk behind mower on such a slope it is extremely difficult to maintain your footing and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes WARNING ...

Page 8: ... within the steering wheel beneath steering wheel cap Carefully pry off the steering wheel cap and remove the hardware NOTE There are two different styles of steering wheel cap See Figure 2 Styles vary by model Remove the steering bellow from its packaged location on the deck engagement lift lever found on the right hand side of tractor NOTE Tractor models 668 688 do NOT require a steering bellow ...

Page 9: ...with the two hex screws removed earlier See Figure 3 Quick Adjustment Seat NOTE If your seat was shipped mounted backwards on the seat pivot bracket pull out the tab found on the seat stop and hold it open while sliding the seat off the seat pivot bracket See Figure 4 1 Line up the plastic seat spacers with the slots in seat pivot bracket 2 Slide seat in until front seat spacer engages the seat st...

Page 10: ...n your thumb and index finger and rotating it clockwise WARNING The shipping brace used for packaging purposes only must be removed and discarded before operating your riding mower WARNING The mowing deck is capable of throwing objects Failure to operate the riding mower without the discharge cover in the proper operating position could result in serious personal injury and or property damage Iden...

Page 11: ...nual for detailed starting instructions WARNING Never leave a running machine unattended Always disengaged PTO Shift into neutral set parking brake stop engine and remove key to prevent unintended starting Figure 9 A Clutch brake Pedal E Ignition Switch B Choke Control F Shift Lever C Throttle Control Lever G Speed Control Lever Parking Brake D Deck Engagement Lift Lever H Seat Adjustment Lever B ...

Page 12: ...es to the desired position Release the speed control lever and the clutch brake pedal NOTE The parking brake must be set if the operator leaves the seat with the engine running or the engine will automatically shut off IMPORTANT Always set the parking brake when leaving the tractor unattended Shift Lever The shift lever is located in the center of the console and has three positions F Forward N Ne...

Page 13: ...key It will return to the ON 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 place the throttle control in the FAST position IMPORTANT Do NOT leave the choke control on while operating the tractor Doing so will result in a rich fuel...

Page 14: ... operate with speed control lever in a low speed position proceed as follows Place shift lever in NEUTRAL Restart engine Place speed control lever in high speed position Release clutch brake pedal fully Depress clutch brake pedal Place speed control lever in desired position Place shift lever in either FORWARD or REVERSE and follow normal operating procedures Engaging The Cutting Blades WARNING Ke...

Page 15: ...points for the best results when mulching Never attempt to mulch if the lawn is damp Wet grass tends to stick to the underside of the cutting deck preventing proper mulching of the clippings Do NOT attempt to mulch more than 1 3 the total height of the grass or approximately 1 1 2 inches Doing so will cause the clippings to clump up beneath the deck and not be mulched effectively Maintain a slow g...

Page 16: ...ed To adjust the position of the seat on models so equipped loosen the two knobs on the bottom of the seat See Figure 13 Slide the seat forward or backward as desired Retighten the two knobs Deck Leveling Adjustment WARNING Protect your hands by wearing heavy gloves to grasp the cutting blade NOTE Check the tractor s tire pressure before performing any deck leveling adjustments Refer to Tires late...

Page 17: ...e deck wheels so that they are between inch and inch above the ground when the tractor is on a smooth flat surface such as a driveway WARNING Keep hands and feet away from the discharge opening of the cutting deck NOTE The deck wheels on models so equipped are an anti scalp feature of the deck and are not designed to support the weight of the cutting deck Refer to Deck Leveling Adjustment on page ...

Page 18: ...gine and remove key to prevent unintended starting If the tractor does not come to a complete stop when the clutch brake pedal is completely depressed or if the tractor s rear wheels can roll with the parking brake applied the brake is in need of adjustment The brake disc can be found on the right side of the transmission in the rear of the tractor Adjust if necessary as follows Looking at the tra...

Page 19: ...Rod If the tractor turns tighter in one direction than the other or if either the tie rod and ferrule are being replaced due to damage or wear the tie rod may need to be adjusted To do so proceed as follows NOTE A replacement cotter pin part no 714 0470 is needed to complete this adjustment Have one on hand before proceeding Place the steering wheel in position for straight ahead travel In front o...

Page 20: ... It may cause damage to electrical components spindles pulleys bearings or the engine The use of water will result in a shortened life of the tractor and reduce its serviceability Engine Refer to the Briggs Stratton Operator Owner Manual or Tecumseh engine s Owner s Manual for engine maintenance instructions Check engine oil level before each use as instructed in the Briggs Stratton Operator Owner...

Page 21: ...iggs Stratton Operator Owner Manual or Tecumseh engine s Owner s Manual packed with your unit Spark Plug s The spark plug s should be cleaned and the gap reset once a season Spark plug replacement is recommended at the start of each mowing season Refer to the Briggs Stratton Operator Owner Manual or Tecumseh engine s Owner s Manual for correct plug type and gap specifications Lubrication WARNING B...

Page 22: ...nd on the left rear portion of the transmission See Figure 24 Place the deck engagement lift lever in the BLADES STOP position Locate the two belt keeper pins found on either side of the engine pulley and use a 1 4 inch socket wrench to remove them from the lower frame See Figure 25 NOTE When reassembling make certain belt keeper pins are assembled in the same locations from which they were remove...

Page 23: ...by using heavy gloves or a rag to grasp the cutting blade WARNING Periodically inspect the blade adapter and or spindle for cracks or damage especially if you strike a foreign object Replace immediately if damaged The blades may be removed as follows Remove the deck from beneath the tractor refer to Cutting Deck Removal on page 22 then gently flip the deck over to expose its underside Place a bloc...

Page 24: ...ce clothes dryer or other gas appliances Jump Starting WARNING When removing or installing the battery follow these instructions to prevent the screwdriver from shorting against the frame IMPORTANT Never jump your tractor s dead battery with the battery of a running vehicle Connect end of one jumper cable to the positive terminal of the good battery then the other end to the positive terminal of t...

Page 25: ...lso remove both the deck stabilizer bracket and the stabilizer rod To do so remove the hairpin clip which secures the stabilizer rod to the stabilizer bracket See Figure 31 After the deck is removed and the stabilizer bracket and rod the upper deck belt can be simply lifted off of the double pulley located in the rear center of the cutting deck To remove the lower deck belt Follow all steps above ...

Page 26: ...hey were removed Using an impact gun with a 5 8 inch socket remove the hex screw with secures the engine pulley to the engine crankshaft Carefully lower the pulley off of the crankshaft and remove the belt from around it Disconnect the battery cables from the terminals disconnect the NEGATIVE Black wire from it s terminal first followed by the POSITIVE Red wire Detach the battery hold down rod and...

Page 27: ... or every two months whichever occurs first When storing unit for extended periods disconnect battery cables Removing battery from unit is recommended Store unit in a clean dry area Do not store next to corrosive materials such as fertilizer NOTE When storing any type of power equipment in an unventilated or metal storage shed care should be taken to rustproof the equipment Using a light oil or si...

Page 28: ...aged Note Look for a wire pinched between body panels burned by the exhaust pipe or muffler or rubbed against a moving part Engine should have a black ground wire running from engine to frame or mounting bolt Engine cranks but will not start Throttle or choke not in starting position No fuel to the carburetor No spark to spark plug Dirty air cleaner Check operator s manual for correct position for...

Page 29: ...29 NOTES ...

Page 30: ...30 NOTES ...

Page 31: ...31 NOTES ...

Page 32: ...h as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d Troy Bilt LLC does not extend any warranty for products sold or exported outside of the United States its possesions and territories except those sold through Troy Bilt LLC s authorized channels of export distribution e Par...

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