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Operator Safety

Service and Maintenance

Safe Handling of Gasoline

 1.  Extinguish all cigarettes, cigars, pipes, and other 

sources of ignition.

 2.  Use only approved gasoline containers.
 3.  Never remove the gas cap or add fuel with the engine 

running.  Allow the engine to cool before refueling.

 4.  Never fuel the machine indoors.
 5.  Never store the machine or fuel container where there is 

an open flame, spark, or pilot light such as near a water 
heater or other appliance.

 6.  Never fill containers inside a vehicle or on a truck bed 

with a plastic bed liner.  Always place containers on the 
ground away from your vehicle before filling.

 7.  Remove gas-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.

 8.  Keep 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.

 9.  If fuel is spilled on clothing, change clothing 

immediately.

 10. Never over-fill the fuel tank.  Replace gas cap and 

tighten securely.

 11. Use extra care in handling gasoline and other fuels. They 

are flammable and vapors are explosive.

 12. If fuel is spilled, do not attempt to start the engine but 

move the machine away from the area of spillage and 
avoid creating any source of ignition until fuel vapors 
have dissipated.

 13. Replace all fuel tank caps and fuel container caps 

securely.

Service & Maintenance

 1.  Never run the unit in an enclosed area where carbon 

monoxide fumes may collect.

 2.  Keep nuts and bolts, especially blade attachment bolts, 

tight and keep equipment in good condition.

 3.  Never tamper with safety devices. Check their proper 

operation regularly and make necessary repairs if they 
are not functioning properly.

 4.  Keep unit free of grass, leaves, or other debris build-up. 

Clean up oil or fuel spillage. and remove any fuel-soaked 
debris.  Allow machine to cool before storage. 

 5.  If you strike an object, stop and inspect the machine.   

Repair, if necessary, before restarting.

 6.  Never make adjustments or repairs with the engine 

running.

 7.  Check grass catcher components and the discharge 

guard frequently and replace with manufacturer’s 
recommended parts, when necessary.

 8.  Mower blades are sharp.  Wrap the blade or wear 

gloves, and use extra caution when servicing them.

 9.  Check brake operation frequently.  Adjust and service as 

required.

 10. Maintain or replace safety and instructions labels, as 

necessary.

 11. Do not remove the fuel filter when the engine is hot 

as spilled gasoline may ignite.  Do not spread fuel line 
clamps further than necessary.  Ensure clamps grip 
hoses firmly over the filter after installation.

12. Do not use gasoline containing METHANOL, gasohol 

containing more than 10% ETHANOL, gasoline additives, 
or white gas because engine/fuel system damage could 
result.

 13. If the fuel tank must be drained, it should be drained 

outdoors.

 14. Replace faulty silencers/mufflers.
 15. Maintain or replace safety and instruction labels as 

necessary.

 16. Use only factory authorized replacement parts when 

making repairs.

 17. Always comply with factory specifications on all settings 

and adjustments.

 18. Only authorized service locations should be utilized for 

major service and repair requirements.

 19. Never attempt to make major repairs on this unit 

unless you have been properly trained. Improper 
service procedures can result in hazardous operation, 
equipment damage and voiding of manufacturer’s 
warranty.

 20. On multiple blade mowers, take care as rotating one 

blade can cause other blades to rotate.

 21. Do not change engine governor settings or over-speed 

the engine.  Operating the engine at excessive speed can 
increase the hazard of personal injury.

 22. Disengage drive attachments, stop the engine, remove 

the key, and disconnect the spark plug wire(s) before: 
clearing attachment blockages and chutes, performing 
service work, striking an object, or if the unit vibrates 
abnormally.  After striking an object, inspect the 
machine for damage and make repairs before restarting 
and operating the equipment.

 23. Never place hands near the moving parts, such as a 

hydro pump cooling fan, when the tractor is running.  
(Hydro pump cooling fans are typically located on top of 
the transaxle).

 24. Units with hydraulic pumps, hoses, or motors: 

WARNING: Hydraulic fluid escaping under pressure may 
have sufficient force to penetrate skin and cause serious 
injury.  If foreign fluid is injected into the skin it must 
be surgically removed within a few hours by a doctor 
familiar with this form of injury or gangrene may result.  
Keep body and hands away from pin holes or nozzles 
that eject hydraulic fluid under high pressure.  Use paper 
or cardboard, and not hands, to search for leaks.  Make 
sure all hydraulic fluid connections are tight and all 
hydraulic hoses and lines are in good condition before 
applying pressure to the system.  If leaks occur, have 
the unit serviced immediately by your authorized dealer.

 25. WARNING: Stored energy device.  Improper release of 

springs can result in serious personal injury.  Springs 
should be removed by an authorized technician.

 26. Models equipped with an engine radiator: WARNING: 

Stored energy device.  To prevent serious bodily injury 
from hot coolant or steam blow-out, never attempt to 
remove the radiator cap while the engine is running.  
Stop the engine and wait until it is cool.  Even then, use 
extreme care when removing the cap

Summary of Contents for 5101604

Page 1: ...5101604 Revision A Rev Date 07 2008 TP 100 7391 A CB S 30HP Zero Turn Riders Mfg No Description 5900763 Simplicity 30HP Cobalt Zero Turn Rider with 61 Mower Cobalt Series OPERATOR S MANUAL...

Page 2: ...LC Copyright 2008 Briggs Stratton Corporation Milwaukee WI USA All rights reserved The Simplicity logo is a trademark of Briggs Stratton Corporation Milwaukee WI USA Contact Information Simplicity Man...

Page 3: ...el 27 Fuel Filter 27 Change Oil Filter 27 Check Hydraulic Oil Level 28 Change Hydraulic Oil Filter 28 Lubrication 29 Servicing the Mower Blades 30 Battery Charging 32 Battery Maintenance 32 Ground Spe...

Page 4: ...with the equipment you have chosen ask a professional contact your local authorized dealer Read the Manual The operator s manual contains important safety information you need to be aware of BEFORE y...

Page 5: ...e blades can pick up and throw debris that could seriously injure a bystander Be sure to clean up the area to be mowed and remove objects that could be thrown by the blade BEFORE you start mowing Do n...

Page 6: ...arances before driving under any objects Do not allow the roll bar to contact low overhanging obstacles such as tree branches and guide wires Roll Bar Use Keep the roll bar in the raised position and...

Page 7: ...line spills should be cleaned up promptly and before operation begins Gasoline should be stored only in sealed containers approved for fuel Proper maintenance is critical to the safety and performance...

Page 8: ...ys before dismounting 12 Disengage blades PTO when not mowing Shut off engine and wait for all parts to come to a complete stop before cleaning the machine removing the grass catcher or unclogging the...

Page 9: ...not operate on it Control of a walk behind or ride on machine sliding on a slope will not be regained by the application of the brake The main reasons for loss of control are insufficient tire grip on...

Page 10: ...fuel line clamps further than necessary Ensure clamps grip hoses firmly over the filter after installation 12 Do not use gasoline containing METHANOL gasohol containing more than 10 ETHANOL gasoline a...

Page 11: ...ld straighten or repair the ROLL BAR Never alter the ROLL BAR by welding anything to it or by drilling additional holes Before First Time Use Inspect the ROLL BAR structure and mounting hardware for 1...

Page 12: ...Check for dirt or debris in the retraction mechanism If dirt or debris is found it should be removed 2 Check to make sure the retraction mechanism retracts easily and completely 3 Check for damage to...

Page 13: ...rider and mower should be carefully read and obeyed Personal bodily injury can result when these instructions are not followed The information is for your safety and it is important The safety decals...

Page 14: ...ked in the NEUTRAL position after the operator returns to the seat in order to start the engine Safety Icons The alert symbol is used to identity safety information about hazards that can result in pe...

Page 15: ...USA 53074 0997 Simplicity Mfg Inc S A M P L E S A M P L E S A M P L E S A M P L E North American Models CE Models Model xxxxxxx Serial xxxxxxxxxx xxxxxxxxxxxxxxxxxxxx 20xx kg kW xxxx xxx x xx max XXX...

Page 16: ...choke Push to knob DOWN to open the choke Deck Lift Pedal Cutting Height Adjustment Pin Deck Lift Lock Lever These control the cutting height of the mower deck Depress the pedal until it locks into th...

Page 17: ...s the time of the PTO being engaged The hour meter measures the number of hours the PTO has been engaged The hour meter will flash an initial oil change indicator at 5 hours and a lubrication reminder...

Page 18: ...has a zero turning radius and the rear wheels could fall off the ramps or the rider could tip over injuring the operator or bystanders D C A B Figure 1 Pre start Checks A Fuel Tank Cap B Crankcase Oil...

Page 19: ...ck the seat into position Pushing the Rider by Hand 1 Disengage the PTO engage the parking brake turn the ignition OFF and remove the key 2 Lift the seat plate to gain access to the hydraulic pumps 3...

Page 20: ...7 cm position 2 Place the cutting height adjustment pin in the desired cutting height 3 Depress the deck lift foot pedal then push the lock lever C towards the right to release the lock 4 Release the...

Page 21: ...f an emergency the engine can be stopped by simply turning the ignition switch to STOP Use this method only in emergency situations For normal engine shut down follow the procedure given in Stopping t...

Page 22: ...rol levers inward Basic Driving Forward Travel Practice Gradually move both ground speed control levers evenly FORWARD from neutral Slow down and repeat NOTE Straight forward travel takes practice If...

Page 23: ...h operating the Zero Turn rider you will learn more maneuvers that will make your mowing time easier and more enjoyable Remember the more you practice the better your control of the Zero Turn will be...

Page 24: ...store a fueled unit in an enclosed structure see warning Battery life will be increased if it is removed put in a cool dry place and fully charged about once a month If the battery is left in the uni...

Page 25: ...ition Cutting the grass too short causes weak thin grass plants which are easily damaged by dry periods and pests Cutting too short is often more damaging than allowing the grass to be slightly higher...

Page 26: ...using a slower ground speed will improve the cutting efficiency of the blades and prevents many common cutting problems Use an appropriate ground speed for the thickness and height of the grass you a...

Page 27: ...s cannot function properly if the grass is wet or if the grass is simply to high to cut Even more than normal mowing mulching requires that the grass be dry and the the appropriate amount is cut Do no...

Page 28: ...50 Hours Spring Fall Check Safety Interlock System Check Rider Brakes Check Mower Blade Stopping Time Rider Maintenance Before Each Use Every 5 Hours Every 25 Hours Every 100 Hours Every 250 Hours Spr...

Page 29: ...draining replace the cap and wipe up any spilled oil Reinstall the oil drain hose into the cable clamp to retain the hose during normal operation 5 Place an absorbent shop cloth under the engine oil f...

Page 30: ...the gasket makes contact then tighten 3 4 of a turn more 5 Run the unit for several minutes and check the transmission oil level IMPORTANT NOTE Use caution after changing the filter air in the hydrau...

Page 31: ...nerally all moving metal parts should be oiled where contact is made with other parts Keep oil and grease off belts and pulleys Remember to wipe fittings and surfaces clean both before and after lubri...

Page 32: ...es Figure 26 Loosening the Mower Blade for Removal Figure 27 Inspecting the Mower Blade Tips A Mower Blade Cutting Edge B Square Corner C Air Lift D Wear Measurement DISCARD Mower Blade If greater tha...

Page 33: ...ther end of the mower blade moves downward sharpen the heavy end until the mower blade is balanced See Sharpening the Mower Blades for proper sharpening instructions 4 Repeat the process until the mow...

Page 34: ...component If there is any doubt about the cause of the problem see your dealer If you need to replace the battery follow the steps under Cleaning the Battery Cables in the Regular Maintenance section...

Page 35: ...e alignment as described above Figure 33 Control Lever Adjustment A Alignment Hardware B Placement Hardware C Ground Speed Control Lever Figure 34 Top Speed Adjustment A Top Speed Adjustment Bolt B Co...

Page 36: ...veral attempts to achieve neutral depending on how much the machine creeps Return to Neutral Adjustment Checking the Adjustment To determine if it is necessary to adjust the neutral return perform the...

Page 37: ...engage the PTO engage the parking brake turn off the engine and remove the ignition key 2 Remove the PTO drive belt see Mower Belt Replacement for removal instructions 3 Remove the hardware that secur...

Page 38: ...The shock assembly can be adjusted to vary the amount of pre load applied to the springs This allows the operator to maintain the ride height Use less pre load for light weight operators Use more pre...

Page 39: ...emove the height adjustment pin A Figure 41 and lower the mower deck 2 To ensure that the deck is in the lowest position push the pedal by hand towards the rear of the unit and install the height adju...

Page 40: ...ical Place a 1 4 0 64cm thick spacer on top of the rear 2 x 4 blocks See Figure 43 6 Adjust the front eyebolts until the chains are tight and the deck is still resting on the 2 x 4 s and spacers Tight...

Page 41: ...O pulley the spindle pulleys and all idler pulleys except the stationary pulley B Figure 47 6 Carefully rotate the breaker bar counter clockwise and install the belt on the stationary idler pulley B 7...

Page 42: ...place fuse 6 Clean the battery terminals 7 Recharge or replace 8 Visually check wiring replace broken or frayed wires Tighten loose connections 9 Repair or replace See authorized dealer 10 Replace as...

Page 43: ...horized service dealer for repair Engine stalls easily with mower engaged 1 Engine speed too slow 2 Ground speed too fast 3 Cutting height set too low 4 Discharge chute jamming with cut grass 1 Set to...

Page 44: ...rectly 2 Tires are not properly inflated 3 Blades are damaged 4 Deck shell is damaged 5 Mower spindle is bent or loose 6 Blades are installed incorrectly 1 Level the deck correctly 2 Check and inflate...

Page 45: ...ting conditions and engine to engine variability Given both the wide array of products on which engines are placed and the variety of environmental issues applicable to operating the equipment the gas...

Page 46: ...h a vertical tree a power line pole a fence post or any vertical structure 3 Compare the angle of the fold with the angle of the hill SLOPE INDENTIFICATION GUIDE ALIGN THIS EDGE WITH A VERTICAL SURFAC...

Page 47: ......

Page 48: ...11 gallons 41 6 L total Rear Wheels Tire Size 22 x 11 00 10 Inflation Pressure 15 psi 1 03 bar Front Wheels Tire Size 13 x 5 00 6 Inflation Pressure 25 psi 1 72 bar TRANSMISSIONS HydroGear PG 3H HGM...

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