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Toro TimeCutter ZD420T, Operator'S Manual

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Toro TimeCutter ZD420T Operator'S Manual Download Page 44

Problem

Possible Cause

Corrective Action

1. The engine mounting bolts are loose.

1. Tighten the engine mounting bolts.

2. The engine pulley, idler pulley, or blade

pulley is loose.

2. Tighten the appropriate pulley.

3. The engine pulley is damaged.

3. Contact an Authorized Service Dealer.

4. The cutting blade(s) is/are bent or

unbalanced.

4. Install a new cutting blade(s).

5. A blade mounting bolt is loose.

5. Tighten the blade mounting bolt.

There is abnormal vibration.

6. A blade spindle is bent.

6. Contact an Authorized Service Dealer.

1. Low engine speed.

1. Always operate the collection mode at

Fast throttle.

2. Plugged chute, deck door.

2. Remove debris, leaves or grass

clippings from the chute system.

Reduced bagging performance.

3. Collection bag is full.

3. Empty the collection bag.

1. Collection bag is full.

1. Empty the collection bag.

2. Low engine speed.

2. Always operate the collection mode at

Fast throttle.

3. Grass is too wet.

3. Cut grass when dry.

4. Grass is too long.

4. Cut 1/3 of the grass height, lower

height-of-cut position and repeat.

Frequent clogging of chute system.

5. Ground speed is too fast.

5. Drive slower at Fast throttle.

1. Collection bag is full.

1. Empty the collection bag.

2. Ground speed is too fast.

2. Drive slower at Fast throttle.

Debris blowout.

3. The mower is not level.

3. Level the mower from side-to-side and

front-to-rear.

1. Collection bag is full.

1. Empty the collection bag.

Collection sensor alarm sounding.

2. Debris is covering sensor.

2. Remove collection bag and clean

sensors with soft cloth.

1. The blade(s) is not sharp.

1. Sharpen the blade(s).

2. A cutting blade(s) is/are bent.

2. Install a new cutting blade(s).

3. The mower is not level.

3. Level the mower from side-to-side and

front-to-rear.

4. An anti-scalp wheel is not set correctly.

4. Adjust the anti-scalp wheel height.

5. The underside of the mower is dirty.

5. Clean the underside of the mower.

6. The tire pressure is incorrect.

6. Adjust the tire pressure.

Uneven cutting height.

7. A blade spindle is bent.

7. Contact an Authorized Service Dealer.

1. The drive belt is worn, loose or broken.

1. Install a new drive belt.

2. The drive belt is off of the pulley.

2. Install the drive belt and check the

adjusting shafts and belt guides for the
correct position.

3. The mower belt is worn, loose, or

broken.

3. Install a new mower belt.

The blades do not rotate.

4. Collection bag is not properly installed.

4. Check the bag and make sure it is

seated flush with machine frame and
presence switch is engaged.

44

Summary of Contents for TimeCutter ZD420T

Page 1: ...683 Rev A TimeCutter ZD420T Riding Mower Model No 74437 Serial No 311000001 and Up To register your product or download an Operator s Manual or Parts Catalog at no charge go to www Toro com Original Instructions EN ...

Page 2: ...fies potential hazards and has safety messages identified by the safety alert symbol Figure 2 which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions Figure 2 1 Safety alert symbol This manual uses two other words to highlight information Important calls attention to special mechanical information and Note emphasizes general information worthy...

Page 3: ... alert symbol which means CAUTION WARNING or DANGER personal safety instruction Failure to comply with the instruction may result in personal injury or death Safe Operating Practices The following instructions are from the CEN standard EN 836 1997 This product is capable of amputating hands and feet and throwing objects Always follow all safety instructions to avoid serious injury or death Trainin...

Page 4: ...ing do not stop or start suddenly when going up or downhill use low speeds on slopes and during tight turns stay alert for humps and hollows and other hidden hazards Use care when pulling loads Use only approved drawbar hitch points Limit loads to those you can safely control Do not turn sharply Use care when reversing Watch out for traffic when crossing or near roadways Stop the blades rotating b...

Page 5: ...pes greater than 15 degrees Do not mow near drop offs ditches steep banks or water Wheels dropping over edges can cause rollovers which may result in serious injury death or drowning Do not mow slopes when grass is wet Slippery conditions reduce traction and could cause sliding and loss of control Do not make sudden turns or rapid speed changes Use a walk behind mower and or a hand trimmer near dr...

Page 6: ...were determined according to the procedures outlined in EN 836 Whole Body Vibration Measured vibration level 0 77 m s2 Uncertainty Value K 0 39 m s2 Measured values were determined according to the procedures outlined in EN 836 Riding Stand Ons 6 ...

Page 7: ... degrees Use the slope chart to determine the degree of slope of hills before operating Do not operate this machine on a slope greater than 15 degrees Fold along the appropriate line to match the recommended slope 2 Align this edge with a vertical surface a tree building fence pole etc 3 Example of how to compare slope with folded edge 7 ...

Page 8: ... Manufacturer s Mark 1 Indicates the blade is identified as a part from the original machine manufacturer 106 2223 106 2224 1 Throttle 7 Headlights 2 Choke 8 Engine stop 3 Fast 9 Engine run 4 Continuous variable setting 10 Engine start 5 Slow 11 Ignition 6 Power take off PTO Blade control switch on some models 106 7043 1 Do not tow the machine pull the lever out to ride on the machine or push the ...

Page 9: ...azard 6 Keep bystanders a safe distance from the battery 2 No fire open flame or smoking 7 Wear eye protection explosive gases can cause blindness and other injuries 3 Caustic liquid chemical burn hazard 8 Battery acid can cause blindness or severe burns 4 Wear eye protection 9 Flush eyes immediately with water and get medical help fast 5 Read the Operator s Manual 10 Contains lead do not discard ...

Page 10: ...ss of traction control hazard slopes loss of traction control on a slope disengage the blade control switch PTO proceed off the slope slowly 5 Crushing dismemberment hazard of bystanders reversing crushing dismemberment hazard of bystanders do not carry passengers look behind and down when reversing 6 Tipping hazard do not mow up and down slopes only mow across slopes less than 15 degrees avoid su...

Page 11: ... 11 Footrest 3 Control panel 6 Operator s position seat 9 Rear drive wheel 12 Front caster wheel G005884z Figure 5 Collection bag removed 1 Motion control lever 4 Collection sensors 7 Mower deck 10 Rear frame 2 Height of cut lever 5 Rear access panel 8 Engine cover 11 Collection bag presence sensor 3 Gas tank cap 6 Rear drive wheel 9 Discharge chute 11 ...

Page 12: ...e it unattended Figure 6 Height of Cut Lever The height of cut lever allows the operator to lower and raise the deck from the seated position When the lever is moved up toward the operator the deck is raised from the ground and when moved down away from the operator it is lowered to the ground Only adjust the height of cut while machine is not moving Figure 6 Recycle On Demand Lever Use the recycl...

Page 13: ...re unplugged the mower blades will not engage The collection bag should be emptied immediately Continued operation of the collection system with a full bag may result in plugging of the deck adapter and discharge chute Operation Note Determine the left and right sides of the machine from the normal operating position Think Safety First Please carefully read all of the safety instructions and decal...

Page 14: ...nd If this is not possible then refuel such equipment on a truck or trailer from a portable container rather than from a fuel dispenser nozzle If a fuel dispenser nozzle must be used keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete WARNING Fuel is harmful or fatal if swallowed Long term exposure to vapors can cause serious injury ...

Page 15: ...gure 12 1 Off 3 Start 2 Run 4 Ignition Stopping the Engine 1 Move the throttle lever to Fast Figure 11 2 Disengage the blades by moving the blade control switch to Off Figure 10 3 Turn the ignition key to Off Figure 12 4 Pull the wire off of the spark plug s to prevent the possibility of someone accidentally starting the machine before transporting or storing the machine 5 Close the fuel shut off ...

Page 16: ...lades Engaging the Blades 1 Release pressure on the traction control levers and place the machine in neutral 2 Move the throttle to the Fast position 3 Pull out on the blade control switch to engage blades Figure 14 Figure 14 1 Blade control switch On 2 Blade control switch Off Disengaging the Blades Push the blade control switch to Off to disengage the blades Figure 14 Stopping the Machine To sto...

Page 17: ...in neutral Start the engine While the engine is running move the motion control levers to the center unlocked position engage the blade control switch and rise slightly from the seat the engine should stop 4 Remove the collection bag While sitting on the seat start the engine and move the blade control switch to On The blades should not engage Adjusting the Height of Cut The height of cut is adjus...

Page 18: ...ut wet grass use the Recycler mode Several hours later when the clippings are dry use the collection mode to gather up the grass clippings For the best performance of the direct collection mode Set the throttle to Fast Mow regularly Use an higher height of cut for taller grass Avoid mowing wet or damp grass Travel at slower speeds when mowing taller grass Emptying the Collection System Once the co...

Page 19: ...hute can be removed to be cleaned and safely cleared of any obstructions Use the following procedure to remove it 1 Make sure the collection bag is empty 2 Park the machine on a level surface and disengage the blade control switch 3 Move the motion control levers to the brake position stop the engine remove the key and wait for all moving parts to stop before leaving the operating position Raise t...

Page 20: ...ht of cut then lower the mower to your normal cutting height and repeat the collection process Remove the collection chute and tap it on the ground to remove any plugged clippings or debris At this time visually inspect the chute to verify it is clear and for any damage If necessary manually remove any obstructions from the chute Installing the Collection Chute 1 Line the key in the chute with the...

Page 21: ...sidue is allowed to build up in the mower housing cutting performance can decrease For the best performance of the Recycler mode Mow regularly Keep air flow high by overlapping cutting paths Use an higher height of cut for taller grass Use sharp blades Travel at slower speeds when mowing taller grass Positioning the Seat The seat can move forward and backward Position the seat where you have the b...

Page 22: ...or all moving parts to stop before leaving the operating position 3 Move the two bypass levers to the inside and push them in until the washer on the rod passes through the slot Figure 23 4 Push the levers outward to lock them in place Figure 23 5 Move the motion control levers inward to disengage the parking brake The machine is now able to be pushed by hand Figure 23 1 Bypass lever lever positio...

Page 23: ...ower is wider than the mower you previously used raise the cutting height to ensure that uneven turf is not cut too short Long Grass If the grass is ever allowed to grow slightly longer than normal or if it contains a high degree of moisture raise the cutting height higher than usual and cut the grass at this setting Then cut the grass again using the lower normal setting When Stopping If the mach...

Page 24: ...y electrolyte level Every 100 hours Change the engine oil more often in dusty dirty conditions Check the spark plug s Replace fuel filter Every 200 hours Replace the paper air cleaner more often in dusty dirty conditions Change the oil filter more often in dusty dirty conditions Before storage Drain the fuel tank Charge the battery and disconnect battery cables Perform all maintenance procedures l...

Page 25: ...Operation page 13 for additional information Note The rear access panel can be opened when the collection bag is off the machine 5 Remove the fasteners retaining the engine hood to the machine frame Figure 25 Retain all parts G005885 Figure 25 1 Engine hood 2 Fasteners 6 Grasp the engine hood front and rear and lift the engine hood off the frame Figure 26 G005900 Figure 26 Removing the Engine Duct...

Page 26: ...Operation page 13 Lubrication Greasing the Bearings Service Interval Every 25 hours Grease the front caster pivots and wheels Figure 30 1 Park the machine on a level surface and disengage the blade control switch 2 Move the motion control levers to the brake position stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 3 Clean the grease fittin...

Page 27: ...lement from the paper element Figure 32 6 Unscrew the wing nut and remove the paper element Figure 32 Figure 32 1 Cover 4 Wing nut 2 Foam element 5 Air cleaner base 3 Paper element 6 Latches Cleaning the Foam and Paper Elements 1 Foam Element A Wash the foam element in liquid soap and warm water When the element is clean rinse it thoroughly B Dry the element by squeezing it in a clean cloth do not...

Page 28: ...re 36 1 Oil dipstick 3 Dipstick end 2 Filler tube 6 Insert the oil dipstick fully into the tube without screwing it in Pull the dipstick out and look at the end If the oil level is low slowly pour only enough oil into the fill hole to raise the level to but not over the Full mark on the dipstick Important Do not overfill the crankcase with oil because the engine may be damaged 7 Insert and screw t...

Page 29: ...74 1 2 Figure 38 1 Oil filter 2 Adapter 4 Install the replacement oil filter to the adapter Turn the oil filter clockwise until the rubber gasket contacts the filter adapter then tighten the filter an additional 3 4 turn Figure 38 5 Fill the crankcase with the proper type of new oil refer to Changing and Draining the Oil 6 Run the engine for about 3 minutes stop the engine and check for any leakag...

Page 30: ...r the engine is operating properly A black coating on the insulator usually means the air cleaner is dirty Important Never clean the spark plug Always replace the spark plug when it has a black coating worn electrodes an oily film or cracks 2 Check the gap between the center and side electrodes Figure 40 Bend the side electrode Figure 40 if the gap is not correct Figure 40 1 Center electrode insul...

Page 31: ...e 42 1 Hose clamp 3 Filter 2 Fuel line 6 Pull the fuel line off of the fuel filter Figure 42 7 Open the fuel shut off valve Allow fuel to drain into a gas can or drain pan Figure 41 Note Now is the best time to install a new fuel filter because the fuel tank is empty 8 Install the fuel line onto the fuel filter Slide the hose clamp close to the fuel filter to secure the fuel line Figure 42 Replaci...

Page 32: ... ground cable from the battery post Figure 43 WARNING Incorrect battery cable routing could damage the machine and cables causing sparks Sparks can cause the battery gasses to explode resulting in personal injury Always disconnect the negative black battery cable before disconnecting the positive red cable Always connect the positive red battery cable before connecting the negative black cable 5 S...

Page 33: ...c gravity This is especially important to prevent battery damage when the temperature is below 32 F 0 C 1 Remove the battery from the chassis refer to Removing the Battery 2 Check the electrolyte level refer to Checking the Electrolyte Level 3 Make sure that the vent caps are installed in the battery Charge the battery for 1 hour at 25 to 30 amps or 6 hours at 4 6 amps Do not overcharge the batter...

Page 34: ... System Maintenance Checking the Tire Pressure Service Interval Every 25 hours Maintain the air pressure in the front and rear tires as specified Uneven tire pressure can cause uneven cut Check the pressure at the valve stem after every 50 operating hours or monthly whichever occurs first Figure 47 Check the tires when they are cold to get the most accurate pressure reading Rear Tires 13 psi 90 kP...

Page 35: ... the motion control levers to the brake position Stop the engine remove the key and disconnect the spark plug wire s from the spark plug s Inspecting the Blades Service Interval Before each use or daily 1 Inspect the cutting edges Figure 48 If the edges are not sharp or have nicks remove and sharpen the blades refer to Sharpening the Blades 2 Inspect the blades especially the curved area Figure 48...

Page 36: ...he blade retains its balance if the same amount of material is removed from both cutting edges Figure 51 1 Sharpen at original angle 2 Check the balance of the blade by putting it on a blade balancer Figure 52 If the blade stays in a horizontal position the blade is balanced and can be used If the blade is not balanced file some metal off the end of the sail area only Figure 51 Repeat this procedu...

Page 37: ...ade level using the following instructions 1 Park the machine on a level surface and disengage the blade control switch 2 Move the motion control levers to the brake position stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 3 Check the air pressure of all four tires If needed adjust to the recommended inflation refer to Checking the Tire Pr...

Page 38: ...ure 57 Note After adjusting the adjustment nuts make sure there is no slack in either support rod Figure 58 Tighten either one to remove the slack Figure 57 Figure 57 1 Locknut and adjusting nut 3 Adjustment nut 2 Front tire 4 Lock nut 14 When the front to rear blade slope is correct tighten the lock nuts and check the side to side level of the mower refer to Leveling the Mower from Side to Side R...

Page 39: ...position stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 3 Set the height of cut at A 1 1 2 inch 38 mm 4 Loosen fastener securing the belt guide to the rear pulley Figure 60 5 Pull the idler arm in the direction shown in Figure 60 and roll the belt off of the pulleys Figure 60 1 Idler arm 5 Belt guide and fastener 2 Spring 6 Outside pulley...

Page 40: ...he cloth can be damp with water Important Do not use solvents or chemicals of any kind to clean the face of the sensors When finished using the machine use a soft cloth to clear away blockage between the sensors crusted or clumped up grass clippings or leaves Washing the Underside of the Mower Service Interval Before each use or daily After each use wash the underside of the mower to prevent grass...

Page 41: ...sh the machine Avoid excessive use of water especially near the control panel engine hydraulic pumps and motors 3 Service the air cleaner refer to Servicing the Air Cleaner in the Engine Maintenance section 4 Grease and oil the machine refer to the Lubrication section 5 Change the crankcase oil and filter refer to Servicing the Engine Oil in the Engine Maintenance section 6 Check the tire pressure...

Page 42: ...he spark plug s 12 Clean any dirt and chaff from the top of the mower 13 Scrape any heavy buildup of grass and dirt from the underside of the mower then wash the mower with a garden hose 14 Check the condition of the drive and mower belts 15 Check and tighten all bolts nuts and screws Repair or replace any part that is worn or damaged 16 Paint all scratched or bare metal surfaces Paint is availabl...

Page 43: ... Install the wire s on the spark plug 6 The spark plug s is pitted fouled or the gap is incorrect 6 Install a new correctly gapped spark plug s 7 There is dirt in fuel filter 7 Replace the fuel filter 8 Dirt water or stale fuel is in fuel system 8 Contact an Authorized Service Dealer 9 There is incorrect fuel in the fuel tank 9 Drain the tank and replace the fuel with the proper type The engine wi...

Page 44: ...1 Collection bag is full 1 Empty the collection bag 2 Ground speed is too fast 2 Drive slower at Fast throttle Debris blowout 3 The mower is not level 3 Level the mower from side to side and front to rear 1 Collection bag is full 1 Empty the collection bag Collection sensor alarm sounding 2 Debris is covering sensor 2 Remove collection bag and clean sensors with soft cloth 1 The blade s is not sha...

Page 45: ...Schematics G005894 Electrical Diagram Rev A 45 ...

Page 46: ...Notes 46 ...

Page 47: ...08 Ibea S P A Italy 39 0331 853611 Irriamc Portugal 351 21 238 8260 Irrigation Products Int l Pvt Ltd India 86 22 83960789 Jean Heybroek b v Netherlands 31 30 639 4611 Lely U K Limited United Kingdom 44 1480 226 800 Maquiver S A Colombia 57 1 236 4079 Maruyama Mfg Co Inc Japan 81 3 3252 2285 Metra Kft Hungary 36 1 326 3880 Mountfield a s Czech Republic 420 255 704 220 Munditol S A Argentina 54 11 ...

Page 48: ...ollow this procedure 1 Contact your seller to arrange service of the product If for any reason it is impossible for you to contact your seller you may contact any Toro Authorized Distributor to arrange service 2 Bring the product and your proof of purchase sales receipt to the Service Dealer 3 If for any reason you are dissatisfied with the Service Dealer s analysis or with the assistance provided...

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