Murray 309006 190A Series Instruction Book Download Page 26

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MAINTENANCE

1740334SM

HOW TO CHECK THE BLADE ROTATION CONTROL

WARNING: To prevent an injury, the blade rotation

control must operate correctly.

In normal usage, the

blade rotation control

will not require an

adjustment. However, if the cutting performance decreases or the

quality of cut is poor, make the following changes.

1. When you mow, make sure the throttle control in in the FAST

position.

2. Move the

blade rotation control

to the

DISENGAGE position

(Figure 18).

3. Stop the engine. Disconnect the wire from the spark plug.

Blade Rotation Control

Engage Position

Disengage

Position

Figure 18

4. Check the blade(s). Keep a sharp edge on the blade(s). A blade

that is not sharp will cause the tips of the grass to become
brown.

5. If the quality of cut has not improved, replace the

mower drive

belt

. See “How To Replace The Mower Drive Belt”. If replacing

the belt does not correct the problem, take the unit to an autho-
rized service center.

6. Move the

blade rotation control

to the

DISENGAGE posi-

tion.

Stop the engine. Disconnect the wire from the spark plug.

7. Check the operation of the

blade brake

. Rotate the pulley with

your hand. Make sure the

brake pad

is pressed tightly against

the pulley (Figure 19).

WARNING: If the brake pad does not press tightly

against the pulley, take the unit to an authorized

service center.

8. Move the

blade rotation control

to the

ENGAGE position.

9. Check the pad for the

blade brake

. If the pad is excessively

worn or damaged, replace the

brake pad

assemblies. Correct

replacement parts and assistance are available from an autho-
rized service center.

10. Attach the wire to the spark plug. Mow for a short distance and

again check the operation of the

blade rotation control

11. When you move the

blade rotation control

to the

DISENGAGE position

, all movement will stop within five se-

conds. If there is movement of the belt or the blades continue
to rotate, engage and disengage the

blade rotation control

five times to remove any excess rubber from a new

mower

drive belt

. If you need assistance, take the unit to an autho-

rized service center.

Figure 19

Blade Brake

(Pad Against Pulley)

Summary of Contents for 309006 190A Series

Page 1: ...to make sure state laws and other laws are followed PRODUCT INFORMATION Read and keep this book for future reference This book contains important information on SAFETY PREPARATION OPERATION AND MAINTENANCE RECORD THE FOLLOWING INFORMATION ABOUT YOUR UNIT THIS INFORMATION IS NECESSARY WHEN ORDERING PARTS OR IN CASE OF LOSS OR THEFT 1740334SM TP 100 4397 00 RD R CUSTOMER MODEL 552549 FACTORY MODEL 3...

Page 2: ...RANSPORT THE UNIT 19 HOW TO INSTALL THE SIDE DISCHARGE ATTACHMENT 20 BEFORE STARTING THE ENGINE 21 HOW TO START THE ENGINE 21 HOW TO OPERATE WITH THE MOWER HOUSING 22 HOW TO OPERATE THE UNIT ON HILLS 22 OPERATING TIPS 23 MOWING AND BAGGING TIPS 23 MAINTENANCE CHART 24 MAINTENANCE 24 HOW TO CHECK THE MUFFLER 24 HOW TO REMOVE AND INSTALL THE BLADE 25 HOW TO SHARPEN THE BLADE 25 HOW TO CHECK THE BLAD...

Page 3: ...approved replacement parts 8 Complete all maintenance on the unit Environmental Awareness D Do not fill the engine s fuel tank completely full D Drain fuel for off season storage D Use only unleaded gasoline D Service the air cleaner regularly D Change oil regularly Use 10W 30 oil in summer D Tune up the engine regularly D Keep equipment in efficient operating condition D Dispose of used engine oi...

Page 4: ... with grass baggers or other attachments they can change the stability of the machine 7 Keep all movement on the slopes slow and gradual Do not make sudden changes in speed or direction 8 Avoid starting or stopping on a slope If tires lose traction turn off the blades and proceed slowly straight down the slope 9 Choose a low ground speed so you will not have to stop or shift while on a slope 10 Al...

Page 5: ...the machine with fuel in the tank or fuel container inside where there is an open flame such as a water heater 2 Never start or run the engine inside a closed area 3 Keep all nuts and bolts especially the blade attachment nuts tight Frequently check the blade s for wear or damage such as cracks and nicks A blade that is bent or damaged must be immediately replaced with an original equipment blade ...

Page 6: ...son Never let another person ride with you on the unit or on any accessories A passenger will make the unit harder to control block the visibility or distract the operator and is dangerous to the operator the passenger and the equipment Without a passenger seat the passenger can fall from the mower or contact dangerous parts A mower is not a toy for showing off or for giving rides Never cut a wet ...

Page 7: ...the mower is not correctly assembled not operated correctly or not regularly serviced the mower can be dangerous The most important rule to follow is always use good judgement and common sense Mow safely and carefully Your mower will easily cut thick grass Fingers feet and other parts can also be cut by the blade Injuries occur when the operator does not think and reaches into the chute opening Al...

Page 8: ...y the grass bagger always stop the engine Before each use of the grass bagger check for cracks wear or deterioration Before you use the grass bagger replace a damaged part with a replacement part approved by the factory For you to have a good green lawn follow the mowing procedures below Do not cut the grass too short If you cut the grass too short you can cause the grass to become yellow or make ...

Page 9: ...ssively F Do not make adjustments or repairs without stopping the engine Disconnect the spark plug wire F On or near roads watch out for traffic Direct discharge away from roads F When mowing avoid areas where traction is unsure Look back before changing direction of travel Look down and behind before and while backing F In heavy grass raise the cutting height Cut slower Stop the engine to remove ...

Page 10: ...eep Bystanders Away Read User Instructions Before Operating This Machine 8 WARNING Do Not Use This Machine On Slopes Greater Than 15 Degrees 9 DANGER Keep People Especially Children Away From Unit 10 DANGER No Step 11 DANGER Keep Feet And Hands Away From Rotating Blade 12 DANGER Keep Hands Away From Rotating Blade 13 DANGER Disconnect Spark Plug Wire Before Servicing Unit 14 WARNING Hot Surface 15...

Page 11: ...he operator on the seat WARNING Before doing any assembly or mainte nance to the mower remove the wire from the spark plug PARTS BAG CONTENTS The fasteners and other loose parts are shown below The fasteners are shown full size The quantity is shown in brackets 2x82 2 Carriage Bolt 14x79 2 Wing Nut 17x47 2 Washer 1001054 2 Knob 2 Ignition Key 690604 1 Cover Terminal LOOSE PARTS CONTENTS Seat Steer...

Page 12: ...he wing bolts A Figure 1 Seat Seat Adjusting Hole Seat Support A B Seat Support Rod HOW TO ASSEMBLE THE STEERING WHEEL Attach the steering wheel as follows 1 Make sure the front wheels point forward 2 Slide the tube into the console Figure 2 Make sure the end of the tube fits over the steering bushing NOTE Before attachment of the steering wheel make sure that the front wheels point forward and ar...

Page 13: ...y retainer from the battery tray push in on the lower end of the battery retainer 2 Remove the battery from the right side of the unit 3 Remove the protective cap from the battery terminal 4 Use a 12 volt battery charger to charge the battery Charge at a rate of 6 amperes for one hour If you do not have a battery charger have an authorized service center charge the battery 5 Install the battery an...

Page 14: ...eral minutes IMPORTANT This unit is equipped with an internal combustion engine and must 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 must be maintained in effective working order by the operator In the State o...

Page 15: ... stop the forward or reverse motion of the unit IGNITION KEYSWITCH Use the ignition key switch to start and stop the engine When you start the engine and release the ignition key the ignition key switch will automatically default to the recommended RUN MOW position for normal mowing SHIFT LEVER Use the shift lever to change the speed of the unit LIFT LEVER Use the lift lever to change the height o...

Page 16: ...urn the ignition switch to the START position The engine should not start If the engine starts the switch is defective and must be replaced 3 Check the Operator Presence System switch DO NOT sit in the seat Depress the clutch brake pedal Move the blade rotation control to the DISENGAGE position Turn the ignition switch to the START position The engine should not start If the engine starts the swit...

Page 17: ... blade rotation control to engage the blade Figure 7 1 Before you start the engine make sure the blade rotation con trol is in the DISENGAGE position 2 To rotate the blade move the blade rotation control forward to lock the blade in the ENGAGE position Note If the engine stops when you engage the blade s the transmission is in reverse 3 To stop the blade move the blade rotation control to the DIS ...

Page 18: ...he SLOW position see Figure 9 Throttle Control Lever Figure 9 3 To go forward move the shift lever to a forward speed setting 4 To go backward move the shift lever to reverse Always disen gage blades and look down and behind before and while back ing Shift Lever Figure 10 5 Slowly release the clutch brake pedal Do not keep your foot on the pedal 6 Move the throttle control to the FAST position FUN...

Page 19: ...ift lever forward to lower the mower housing and back to raise the mower housing Figure 12 2 When you ride on a sidewalk or road move the lift lever to the highest position and move the blade rotation control to the DISENGAGE position Lift Lever Figure 12 HOW TO STOP THE UNIT 1 Completely push the clutch brake pedal forward to stop the unit Keep your foot on the pedal 2 Move the blade rotation con...

Page 20: ... grass out the side install the side discharge attachment as follows 1 Remove the fasteners that secure the mulcher cover see Figure 13 2 Lift the mulcher cover Mount the side discharge attachment onto the same bolts that secured the mulcher cover 3 Secure the side discharge attachment with the fasteners 4 To mulch remove the side discharge attachment and mount the mulcher cover to the mower housi...

Page 21: ...ee the engine manufacturer s instructions 1 The engine has a loss of power or does not run smooth 2 A change from summer to winter operation 3 A 40 degree change in the operation temperature The carbure tor was adjusted at 80 degrees at the factory 4 The engine is operated above 4 000 feet HOW TO START THE ENGINE WARNING The electrical system has two primary components an operator presence system ...

Page 22: ...ease the clutch brake pedal 8 Move the throttle control to the FAST position If you need to go faster or slower stop the unit and move the shift lever to another speed setting 9 Make sure the level of cut is still correct After you mow a short distance look at the area that was cut If the mower housing does not cut level see the instructions on How To Level The Mower Housing in the Maintenance sec...

Page 23: ... blade is bent or damaged immediately replace the blade Also make sure the nut for the blade is tight 4 Keep the blade s sharpened Worn blades will cause the ends of the grass to turn brown 5 Do not cut or bag grass that is wet Wet grass will not discharge correctly Let the grass dry before cutting 6 Use the left side of the mower housing to trim near an object 7 Discharge the cut grass onto the m...

Page 24: ...arnings in the Owner s Manual Add fuel stabilizer Refer to the Engine Owner s Manual Prepare battery for storage a Remove from unit b Fully charge c Move to cool dry place GENERAL RECOMMENDATIONS 1 The owner s responsibility is to maintain this product This will extend the life of the product and is also necessary to maintain warranty coverage 2 Check the spark plug drive brake lubricate the unit ...

Page 25: ...t cut correctly and can cause an accident 8 Fasten the blade with the original washers and nut Make sure the outside rim of the Belleville washer is against the blade Figure 16 WARNING Always keep the nut tight that holds the blade A loose nut or blade can cause an accident 9 Tighten the nut that holds the blade to a torque of 35 foot pounds 47 5 N m 10 Install the mower housing See How To Install...

Page 26: ...tation control to the DISENGAGE posi tion Stop the engine Disconnect the wire from the spark plug 7 Check the operation of the blade brake Rotate the pulley with your hand Make sure the brake pad is pressed tightly against the pulley Figure 19 WARNING If the brake pad does not press tightly against the pulley take the unit to an authorized service center 8 Move the blade rotation control to the EN...

Page 27: ...ut HOW TO CHECK AND ADJUST THE CLUTCH If the motion drive belt is loose the clutch will slip when 1 going up a hill 2 pulling a heavy load or 3 the unit will not move forward Adjust the clutch as follows WARNING Before you make an inspection adjust ment or repair to the unit disconnect the wire to the spark plug Remove the wire from the spark plug to prevent the engine from starting by accident 1 ...

Page 28: ... 2 Disconnect the red cable from the positive terminal 3 To disconnect the battery retainer from the battery tray push in on the lower end of the battery retainer 4 Remove the battery from the right side of the unit HOW TO CLEAN THE BATTERY 1 Remove the battery 2 Wash the battery with a solution of one gallon of water and four tablespoons of baking soda sodium bicarbonate Make sure the solution do...

Page 29: ...el line the fuel tank must be empty If the fuel filter is dirty the engine will run rough and have less performance Remove the old filter Figure 25 Replace the old filter with a new filter Use an original equipment part See an authorized service dealer in your area Fuel Line Clips Fuel Filter Figure 25 CHECK THE TIRES Check the air pressure in the tires Tires with too much air pressure will cause ...

Page 30: ...igure 27 Make sure both sides of the mower housing are set ting on a flat surface 7 Make sure that the adjuster plate is loose and can easily move up or down see Figure 27 8 Tighten the front and rear adjuster knobs Make sure the ad juster knobs are tight If necessary use a wrench to tighten the adjuster knobs Tighten to a torque of 10 foot pounds 13 5 N m 9 Raise the lift lever from the LEVEL ADJ...

Page 31: ...mower drive belt is against the stack pulley Also make sure the mower drive belt is not twisted 3 Attach the front hanger to the frame support with the hanger rod Fasten with the fasteners as shown See illustration F 4 Make sure the mower drive belt is between the stack pulley and the two belt guides See illustration G 5 Attach the suspension links to the lifter assembly Fasten with the washers an...

Page 32: ... side of the belt is against the pulley 2 Install the end of the motion drive belt around the drive pulley 3 Make sure the motion drive belt is inside of the belt guides next to the drive pulley Tighten the belt guides 4 Put the belt around the idler pulley Assemble the idler pulley Fasten the idler pulley with the hex nut Make sure the V side of the belt is against the idler pulley Also make sure...

Page 33: ... 4 Install the new mower drive belt Pull the brake pad away from the jackshaft pulley Put the mower drive belt around the jackshaft pulley 5 Pull the belt retainer away from the idler pulley Put the mow er drive belt around the idler pulley 6 Make sure the V side of the mower drive belt is against the jackshaft pulley and the idler pulley 7 Install the mower housing See the instructions on How To ...

Page 34: ...ake sure the washer hold the hub caps in place Rear Wheel 1 Install the washers and spacer onto the axle as shown in Figure 34 2 Mount the square key in the key slot See Figure 34 3 Make sure the valve stem is to the outside of the tractor Align the slot in the rear wheel with the square key Slide the rear wheel on the axle 4 Fasten the rear wheel with washer and e ring 5 If your model has hub cap...

Page 35: ... 4 Again clean the top of the mower housing 5 After you cut the grass clean the bottom of the mower housing STORAGE over 30 days At the end of each year prepare the unit for storage as follows THE ENGINE For storage information see the the engine manufacturer s instructions THE BATTERY 1 Remove the battery 2 Clean the battery terminals of any deposits 3 Charge the battery See the instructions on H...

Page 36: ...PROBLEM Excessive vibration 1 Replace the blade 2 Check for loose engine bolts 3 Decrease the air pressure in the tires 4 Adjust the carburetor 5 Check for a damaged belt or damaged pulley Replace the damaged parts PROBLEM The grass does not discharge correctly 1 Stop the engine Clean the mower housing 2 Raise the height of cut 3 Replace or sharpen the blade s 4 Move the shift lever to a slower sp...

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Page 39: ...26 Clutch 27 Drive Brake 27 Filter Fuel 29 Fuse 35 Install Wheels 34 Lubrication 29 Mower Housing Clean 35 Install 31 Level 30 Remove 31 Muffler 24 Storage 35 Maintenance Chart 24 Motion Drive Belt Adjust 27 Replace 32 Mower Drive Belt Adjust 26 Replace 33 Mower Housing Clean 35 Cutting Height 19 Install 31 Level Adjustment 30 Operation 22 Remove 31 Muffler 24 Spark Arrester 24 Mulcher Cover Remov...

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