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Toro 78357, Operator'S Manual

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Toro 78357 Operator'S Manual Download Page 26

24

Troubleshooting

PROBLEM

POSSIBLE CAUSES

CORRECTIVE ACTION

Abnormal vibration.

1.

Cutting blade(s) is bent or

unbalanced.

1.

Install new cutting blade(s).

2.

Blade mounting bolt is loose.

2.

Tighten blade mounting bolt.

3.

Engine mounting bolts are

loose.

3.

Tighten engine mounting

bolts.

4.

Loose engine pulley, idler

pulley, or blade pulley.

4.

Tighten the appropriate

pulley.

5.

Engine pulley is damaged.

5.

Contact Authorized Service

Dealer.

Blade(s) does not rotate.

1.

Blade drive belt is worn, loose

or broken.

1.

Install new blade drive belt.

2.

Blade drive belt is off pulley.

2.

Install blade drive belt and

check idler pulley and belt

guides for correct position.

3.

PTO belt is worn, loose or

broken.

3.

Install new PTO belt.

Uneven cutting height.

1.

Tire pressure is incorrect.

1.

Set tire pressure.

Uneven cutting height.

2.

Mower is not level.

2.

Level mower from

side-to-side and front-to-rear.

3.

Underside of mower is dirty.

3.

Clean the underside of the

mower.

Insufficient transport height.

1.

Lift arm cams are improperly

adjusted.

1.

Adjust lift arm cams.

PTO (cutter deck) belt comes off

of pulleys,slips or fails.

1.

Belt tension is incorrect.

2.

Mower level is incorrect.

1.

Adjust belt tension.

2.

Adjust mower level.

of pulleys,slips or fails.

2.

Mower level is incorrect.

3.

Blade slope in transport is

incorrect.

2.

Adjust mower level.

3.

Adjust blade slope in

transport.

3.

Blade slope in transport is

incorrect.

4.

Cutter deck belt guide is

3.

Adjust blade slope in

transport.

4.

Adjust and tighten belt guide.

4.

Cutter deck belt guide is

loose or incorrectly adjusted.

5.

Belt is worn or damaged.

4.

Adjust and tighten belt guide.

5.

Install new belt.

5.

Belt is worn or damaged.

6.

Pulley is damaged.

5.

Install new belt.

6.

Contact Authorized Service

Dealer.

7.

Engine is not at full throttle.

Dealer.

7.

Always operate engine--

powered attachments at full

7.

Engine is not at full throttle.

7.

Always operate engine--

powered attachments at full

throttle.

Summary of Contents for 78357

Page 1: ...Operator s Manual Domestic English EN Form No 3322 660 44 Mower Wheel Horseâ 5xi Tractor Attachment Model No 78357 8900001 and Up Model No 78358 8900001 and Up ...

Page 2: ... No Serial No The warning system in this manual identifies potential hazards and has special safety messages that help you and others avoid personal injury even death DANGER WARNING and CAUTION are signal words used to identify the level of hazard However regardless of the hazard be extremely careful DANGER signals an extreme hazard that will cause serious injury or death if the recommended precau...

Page 3: ...peration 13 Operating the Power Take Off PTO 13 Attachment Lift Lever 14 Adjusting the Center Roller 15 Adjusting the Front Wheels 15 Check for Debris 16 Tips for Mowing Grass 16 Page Maintenance 18 Service Interval Chart 18 Cutting Blade 19 Greasing and Lubrication 20 Checking PTO Drive Belt Tension 21 Extending PTO Drive Belt Life 21 Blade Drive Belt 22 Washing the Underside of the Mower 22 Stor...

Page 4: ...er Replace any decal that is damaged or lost ON MOWER RIGHT SIDE Part No 98 3481 ON DISCHARGE CHUTE Part No 93 1122 2 ON LEVELER BAR Part No 98 3478 NEXT TO GAGE WHEELS Part No 93 7282 UNDER DISCHARGE CHUTE Part No 92 7109 ON MOWER REAR TOP Part No 98 3489 ON HEIGHT OF CUT BRACKET Part No 111655 1 ON DISCHARGE CHUTE 1 ON DECK LEFT SIDE Part No 92 7108 ...

Page 5: ...t Fig 1 2 Align the discharge chute with the holes in the brackets and the spring straight ends in the space under the hinge and above the chute Fig 1 3 Secure the chute to the bracket with bolts through the discharge chute springs and brackets Secure with lock nuts Fig 1 4 Lift the discharge chute and check that it is spring loaded and pivots freely to the full down position IMPORTANT The dischar...

Page 6: ...and turn the ignition key to STOP Also remove the ignition key and pull the wire s off the spark plug s Routing the Mower Belt 1 Route the mower belt as shown in Fig 2 Be sure to install the belt on the lower mower deck pulley 2 1 m 3461 Figure 2 Top View 1 Mower belt 2 Mower deck pulley Installing the Mower Preparing the Tractor The mower is most easily installed when done on a level concrete sur...

Page 7: ...of cut 2 Ensure that the attachment lift is in the full up position 3 From the driver s right hand side of the tractor slide the mower under the tractor 4 After sliding the mower under the tractor position it so that the slots in the side of each of the mower s mounting brackets Fig 5 are aligned directly below the tractor s attachment lift arm m 3460 1 2 3 Figure 5 1 Slots in the side mounting br...

Page 8: ...and the tractor and be injured HOW TO AVOID THE HAZARD Keep hands away from moving parts while operating the attachment lift Always position the mower with your hand on the right front mower wheel bracket Never try to position the mower with your hands on the mower mounting brackets or below the mower housing m 3500 1 Figure 7 1 Place hand here 9 Turn the lever of the Attach A Matict counterclockw...

Page 9: ...ing maintenance or touching components under the hood 5 Position the belt into the grooves of the PTO pulley Fig 10 making sure it is also under the pulleys in the pulley box m 4231 1 3 2 Figure 10 1 Pulley box pulleys 2 PTO pulley 3 PTO drive belt 6 Loop the other end of the belt over the drive pulley of the mower Additional belt slack can be obtained if needed by turning the belt tension adjustm...

Page 10: ... Seating position for tension arm 5 Belt tension released 9 Loosen the belt guide bolt Fig 13 10 Adjust the belt guide so that it just touches the belt on the inside arm of the guide toward the center of the deck Fig 13 m 3465 1 2 3 4 Figure 13 1 Belt guide 2 Belt 3 Belt touches here 4 Belt guide bolt 11 Tighten the belt guide bolt 12 Replace the front grill of the tractor Adjusting the Mower Adju...

Page 11: ...1 Disengage the power take off PTO set the parking brake lower the attachment lift stop the engine and remove the ignition key 2 Carefully rotate one of the blades so it is facing front and rear Fig 15 3 Measure the distance from the front tip of the blade Fig 15 to the flat surface Then carefully rotate the blade tip until it is in the rear position When the blade tip is in the front position it ...

Page 12: ...elt failure and or insufficient transport height 1 Check to see that both adjustment cams are oriented with the indicator toward the pivot point at the rear of the tractor Fig 18 1 m 3518 2 3 4 5 6 Figure 18 Right Side of Tractor Shown 1 Indicator 2 Adjustment cam 3 Lift arm 4 Pivot point 5 Lowers front of deck 6 Raises front of deck 2 If they are not park the machine on a level surface set the pa...

Page 13: ...e slope of the blade is approximately 1 4 7 mm lower in the front than it is in the rear Removing the Mower The mower is most easily removed from the tractor when done on a level concrete surface Rougher dirt or lawn surfaces make removing the mower more difficult 1 Apply the parking brake start the tractor and raise the attachment lift 2 Get off the tractor Place the mower height of cut lever in ...

Page 14: ...e deck lift arms and twist them slightly so that they stay disengaged Fig 22 m 3456 1 Figure 22 1 J pin 11 If you wish to remove the pulley box push the latch release buttons on the front Attach A Matict Fig 23 and raise the latch levers to open the latches holding the pulley box Remove the pulley box m 3458 3 1 2 2 Figure 23 1 Front Attach A MaticTM button one on each side 2 Front Attach A MaticT...

Page 15: ...ake off PTO to OFF and rotate the ignition key to STOP Also remove the ignition key and pull the wire s off the spark plug s Operating the Power Take Off PTO The power take off PTO engages and disengages power to the electric clutch While the ignition key is in RUN or LIGHTS position and the power take off PTO is engaged the PTO indicator light will be on When this light is ON it is a reminder the...

Page 16: ... position POTENTIAL HAZARD When the engine is off attachments in the raised position can gradually lower WHAT CAN HAPPEN Someone nearby may be pinned or injured by the attachment as it lowers HOW TO AVOID THE HAZARD Always lower the attachment lift each time you shut off the tractor Lowering Attachments 1 Start the tractor 2 Push the attachment lift lever downward to lower the attachment m 3258 1 ...

Page 17: ...609 1 2 3 4 5 6 Figure 27 1 Roller 2 Cotter pin 3 Bolt 4 Rod 5 Upper hole 6 Lower hole Adjusting the Front Wheels The two front adjustable wheels must be adjusted in the proper hole location for each time you change deck height of cut position 1 After selecting height of cut make sure the front adjustable wheels are approximately 3 8 9 5 mm off the ground 2 To adjust wheel height off the ground re...

Page 18: ...fall when grass grows more slowly Mowing Direction Alternate mowing direction to keep the grass standing straight This also helps disperse clippings which enhances decomposition and fertilization Avoid mowing in reverse Mow at Correct Intervals Normally mow every 4 days But remember grass grows at different rates at different times So to maintain the same cutting height which is a good practice mo...

Page 19: ...2 To disperse the clippings evenly raise the mower while driving forward with the blade s ENGAGED Keep the Underside of the Mower Clean Use the washout port to clean clippings and dirt from the underside of the mower after each use If grass and dirt build up inside the mower cutting quality will eventually become unsatisfactory Blade Maintenance Maintain a sharp blade throughout the cutting season...

Page 20: ...heck initial X X Chipped Surfaces paint X POTENTIAL HAZARD If you leave the key in the ignition switch someone could start the engine WHAT CAN HAPPEN Accidental starting of the engine could seriously injure you or other bystanders HOW TO AVOID THE HAZARD Remove the key from the ignition switch and pull the wire s off the spark plug s before you do any maintenance Also push the wire s aside so it d...

Page 21: ...ting edges Fig 30 If the edges are not sharp or have nicks remove the blade s and sharpen them refer to Sharpening the Blade s page 20 3 Inspect the blade s especially the curved area Fig 30 If you notice any damage wear or a slot forming in this area Fig 30 immediately install a new blade 151 1 2 3 Figure 30 1 Cutting edge 2 Curved area 3 Wear slot forming Removing the Blade 1 Remove the mower re...

Page 22: ...lle washer and the blade bolt Fig 31 IMPORTANT The sail curved part of the blade must be pointing up toward the inside of the mower to assure proper cutting 2 Tighten the blade bolt to 40 60 ft lb 54 81 Nm 1796 1 2 3 4 5 Figure 34 1 Bolt 2 Belleville washer concave side toward blade 3 Blade 4 Spindle 5 Sail Greasing and Lubrication Service Interval Specification Grease the mower after every 25 ope...

Page 23: ...e arm into the pulley box by moving it into the position shown in Fig 36 m 3458 1 3 2 4 5 Figure 36 1 Belt tension release arm 2 Belt tension indicator 2 3 Belt tension adjustment knob 4 Seating position for tension arm 5 Belt tension released Extending PTO Drive Belt Life The PTO drive belt will provide a long service life if properly installed and operated Check the following items to help exten...

Page 24: ... 4 Install the mower refer to Installing the Mower page 4 2 1 4 3 2 m 3461 5 Figure 37 Top View 1 Pulley cover screw 2 Pulley cover 3 Belt Guide 4 Mower belt 5 Spring Washing the Underside of the Mower After each use wash the underside of the mower to prevent grass build up and improve performance 1 Park the tractor on a hard level surface 2 Apply the parking brake start the tractor and raise the ...

Page 25: ...or death HOW TO AVOID THE HAZARD Replace broken or missing washout fitting immediately before using the mower again Plug any hole s in the mower with bolts and locknuts Never put your hands or feet under the mower or through openings in the mower Storage 1 Clean dirt and chaff from the top of the mower 2 Scrape heavy buildup of grass and dirt from the underside of the mower Then wash the mower wit...

Page 26: ...o side and front to rear 3 Underside of mower is dirty 3 Clean the underside of the mower Insufficient transport height 1 Lift arm cams are improperly adjusted 1 Adjust lift arm cams PTO cutter deck belt comes off of pulleys slips or fails 1 Belt tension is incorrect 2 Mower level is incorrect 1 Adjust belt tension 2 Adjust mower level of pulleys slips or fails 2 Mower level is incorrect 3 Blade s...

Page 27: ...er 10 Cutter deck is overloaded 9 Reduce ground speed when mulching or bagging 10 Cut tall grass and weeds with 10 Cutter deck is overloaded because too much grass is being cut at a time 10 Cut tall grass and weeds with mower in its highest position making a second pass cutting at height desired 11 Cutter deck is overloaded because deck is clogged with grass clippings at height desired 11 Clean cu...

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