Toro Z-320 Operator'S Manual Download Page 42

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Troubleshooting

PROBLEM

CORRECTIVE ACTION

POSSIBLE CAUSES

Engine overheats.

Engine load is excessive.

Reduce ground speed.

Oil level in crankcase is low.

Add oil to crankcase.

Cooling fins and air passages
under engine blower housing
are plugged.

Remove obstruction from
cooling fins and air passages.

Abnormal vibration.

Engine mounting bolts are
loose.

Tighten engine mounting
bolts.

Loose engine pulley, idler
pulley, or blade pulley.

Tighten the appropriate
pulley.

Engine pulley is damaged.

Contact Authorized Service
Dealer.

Machine does not drive.

Parking brake is on.

Traction belt is worn, loose or
broken.

Move parking brake to off.

Contact Authorized Service
Dealer.

Traction belt is off pulley.

Contact Authorized Service
Dealer.

Hydro fluid level low.

Add hydro fluid to reservoir.

Summary of Contents for Z-320

Page 1: ...al carefully It contains information about your safety and the safety of others Also become familiar with the controls and their proper use before you operate the product FORM NO 3321 439 Z 320 OUT FRONT Z Traction Unit Model No 74180 891200 Up ...

Page 2: ...t products you are responsible for using the product properly and safely You are also responsible for training persons who you allow to use the product about safe operation 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 ...

Page 3: ... Operating Power Take Off PTO 15 The Safety Interlock System 16 Instruments 16 Page Driving Forward or Backward 17 Stopping the Machine 18 Positioning the Seat 18 Pushing the Machine by Hand 19 Maintenance 20 Service Interval Chart 20 Air Cleaner 21 Engine Oil 23 Spark Plug 25 Greasing and Lubrication 26 Cleaning the Cooling Systems 27 Tire Pressure 27 Fuel Filter 28 Fuel Tank 28 Hydraulic System ...

Page 4: ...ved grass covered land without an approved spark arrester muffler is a violation of the law Other states may have similar laws General Operation 1 Read understand and follow all instructions in the operator s manual and on the machine before starting 2 Allow only responsible adults who are familiar with the instructions to operate the machine 3 Clear the area of objects such as rocks toys wire etc...

Page 5: ...ndations for wheel weight or counterweights to improve stability Use extra care with grass catchers or other attachments These can change the stability of the machine Keep all movement on slopes slow and gradual Do not make sudden changes in speed or direction Avoid starting or stopping on a slope If tires lose traction disengage the blades and proceed slowly straight down the slope When operating...

Page 6: ...Never run a machine inside a closed area 4 Keep nuts and bolts tight especially the blade attachment bolts Keep equipment in good condition 5 Never tamper with safety devices Check safety systems for proper operation before each use 6 Keep the machine free of grass leaves or other debris build up Clean up oil or fuel spillage Allow the machine to cool before storing 7 Stop and inspect the equipmen...

Page 7: ...Safety 5 Slope Chart Read all safety instructions on pages 2 4 ...

Page 8: ...ated near any area of potential danger Replace any decal that is damaged or lost ON REAR FRAME MEMBER AND CLUTCH GUARD Part No 93 9198 BELOW FRONT OF SEAT Part No 98 1313 ON UTILITY BOX LATCH Part No 98 1306 ON INSTRUMENT PANEL Part No 98 4357 ON FRONT FRAME MEMBER Part No 98 4361 BELOW FRONT OF SEAT Part No 98 4387 ...

Page 9: ...Never smoke when handling gasoline and stay away from an open flame or where gasoline fumes may be ignited by a spark Store gasoline in an approved container and keep it out of the reach of children Never buy more than a 30 day supply of gasoline Stabilizer Conditioner Add the correct amount of gas stabilizer conditioner to the gas Using a stabilizer conditioner in the machine Keeps gasoline fresh...

Page 10: ...support rod Wing nut 1 4 20 Terminal boot Bolt 1 4 20 x 3 4 19 mm Washer 1 4 1 1 2 4 1 2 2 Install battery Drive Shaft Roll Pin 3 16 x 2 51 mm Bolt 3 8 16 x 1 5 8 41 5 MM Locknut 3 8 16 1 1 2 2 Install drive shaft to mower gearbox Pivot pin assembly Hairpin cotter 2 2 Install mower attachment Key Safety Booklet Operator s Manual Engine Operator s Manual Parts Catalog Registration card 2 1 1 1 1 1 ...

Page 11: ...l battery supply outlet 1 Remove the battery from the machine IMPORTANT Be careful not to damage the long vent tube when removing the battery box POTENTIAL HAZARD Battery electrolyte contains sulfuric acid which is a deadly poison and it causes severe burns WHAT CAN HAPPEN If you carelessly drink electrolyte you could die or if it gets onto your skin you will be burned HOW TO AVOID THE HAZARD Do n...

Page 12: ...ll Battery 1 Fill battery with electrolyte and charge refer to BATTERY page 35 2 Position battery in tray with terminal posts toward the engine Fig 4 3 Slide the red terminal boot onto the red battery cable 4 Install the positive red battery cable to positive battery terminal then negative battery cable to the negative battery terminal Secure cables with 2 1 4 x 3 4 19 mm bolts 1 4 washers 1 4 loc...

Page 13: ... 2 Universal Joint 3 Roll Pin 3 16 x 2 51 mm Remove Drive Shaft POTENTIAL HAZARD If the drive shaft is attached to the tractor and not to a mower deck or other attachment and the tractor is operated the drive shaft may flail about dangerously WHAT CAN HAPPEN If the drive shaft is connected only to the tractor when the PTO is engaged the shaft will flail about and can seriously injure you or bystan...

Page 14: ...s of hearing WHAT CAN HAPPEN Ear damage or hearing loss may occur HOW TO AVOID THE HAZARD Wear ear protection when operating this machine Controls Become familiar with all the controls Fig 1 before you start the engine and operate the machine 1 2 5 10 m 3729 3 8 9 7 4 6 Figure 1 1 Motion control lever 2 Parking brake 3 Ignition switch 4 Throttle 5 Power take off PTO 6 Hourmeter 7 Choke 8 Drink hol...

Page 15: ...the motion control levers to neutral Fig 1 2 Pull up on the parking brake lever to set the parking brake Fig 2 The parking brake lever should stay firmly in the SET position Releasing the Parking Brake 1 Push in on the button and lower parking brake lever to OFF Fig 2 1 3 m 3287 2 Figure 2 1 Parking brake SET 2 Button 3 Parking brake OFF ...

Page 16: ...o START to energize starter When engines starts release key Note If starter does not crank move the motion control levers slightly to locate neutral IMPORTANT Do not engage starter for more than 10 seconds at a time If engine fails to start allow 30 second cool down period between attempts Failure to follow these instructions can burn out starter motor 7 After the engine starts gradually move the ...

Page 17: ...ORTANT Make sure fuel shut off valve is closed before transporting or storing machine as fuel leakage may occur Operating Power Take Off PTO The power take off PTO switch engages and disengages power to the attachment clutch Engaging the Power Take Off PTO 1 Move motion control levers to neutral to stop the machine 2 Raise the cover and move the power take off PTO switch to the ON position to enga...

Page 18: ... immediately 1 SET the parking brake and move power take off PTO to ON Try starting the engine the engine should not crank 2 SET the parking brake and move power take off PTO to OFF Move one then the other motion control lever forward or reverse Try starting the engine the engine should not crank 3 SET the parking brake move power take off PTO to OFF and hold the motion control levers in neutral N...

Page 19: ...e Fig 9 To turn move the motion control lever to neutral on the side you want to turn toward Fig 9 The farther you move the motion control levers in either direction the faster the machine will move in that direction Note The mowing speed reference position can be felt as extra spring force when pushing motion controls forward Motion control levers return to this pre set position approximately 5 m...

Page 20: ...e ignition switch POTENTIAL HAZARD Someone could move or attempt to operate the tractor while it is unattended WHAT CAN HAPPEN Children or bystanders may be injured if they use the tractor HOW TO AVOID THE HAZARD Always remove the ignition key and set the parking brake when leaving the machine even if just for a few minutes Positioning the Seat The seat can move forward and backward Position the s...

Page 21: ... pump by pass valves counterclockwise 2 turns to push This allows hydraulic fluid to by pass the pump enabling the wheels to turn Fig 12 IMPORTANT Rotate by pass valve a maximum of 2 turns so the valve does not come out of the body causing fluid to run out 3 Release the parking brake To Operate the Machine 1 Turn the by pass valves in to operate Fig 12 Note The machine will not drive unless by pas...

Page 22: ... X Safety System check X X Chassis grease X X Drive Shaft grease X X PTO Gearbox check level change every 500 hours or six months X X Foam Air Cleaner service X X Paper Air Cleaner replace X X Spark Plug s check X X Belts check for wear cracks X X Gasoline drain X Cooling systems clean X X X Hydraulic lines check X X Battery check electrolyte X X Battery charge Disconnect cables X Fuel Filter repl...

Page 23: ...oil after every 25 operating hours Paper Element Replace after every 100 operating hours Note Service the air cleaner more frequently every few hours if operating conditions are extremely dusty or sandy Removing the Foam and Paper Elements 1 Disengage the power take off PTO set the parking brake and turn the ignition key to OFF to stop the engine Remove the key 2 Clean around the air cleaner to pr...

Page 24: ... the element on a flat surface to remove dust and dirt Fig 15 B Inspect the element for tears an oily film and damage to the rubber seal IMPORTANT Never clean the paper element with pressurized air or liquids such as solvent gas or kerosene Replace the paper element if it is damaged defective or cannot be cleaned thoroughly 1 m 1213 2 Figure 15 1 Paper element 2 Rubber seal Installing the Foam and...

Page 25: ...wer take off PTO and turn the ignition key to OFF to stop the engine Remove the key 2 Clean around the oil dipstick Fig 16 so dirt cannot fall into the filler hole and damage the engine 3 Unscrew the oil dipstick and wipe the metal end clean Fig 16 4 Slide the oil dipstick fully into the filler tube do not thread onto tube Fig 16 Pull the dipstick out and look at the metal end If oil level is low ...

Page 26: ...l oil to bring to FULL mark on dipstick Change Oil Filter Replace the oil filter every 200 hours or every other oil change Note Change oil filter more frequently when operating conditions are extremely dusty or sandy 1 Drain the oil from the engine refer to Changing Draining Oil page 24 2 Remove the old filter and wipe the filter adapter Fig 18 gasket surface 3 Pour new oil of the proper type in t...

Page 27: ...e and potentially causing damage 3 Remove the spark plug s and metal washer m 3218 1 2 Figure 19 1 Spark plug wire 2 Spark plug Checking the Spark Plug 1 Look at the center of the spark plug s Fig 20 If you see light brown or gray on the insulator the engine is operating properly A black coating on the insulator usually means the air cleaner is dirty IMPORTANT Never clean the spark plug s Always r...

Page 28: ...s Fig 21 m 3289 m 3222 Figure 21 2 Grease the fittings on drive shaft and universal joints Fig 6 Figure 22 1 PTO Driveshaft 2 Universal Joint Lubricate Power Take Off PTO Gearbox Check the oil level in the PTO gearbox every 50 operating hours Change the oil every 500 hours or six months whichever occurs first Oil Type SAE EP 80 90 wt gear oil Capacity 16 oz 377 ml 1 Clean area around top and side ...

Page 29: ... bolts Slide screen down and rearward to expose oil cooler Fig 24 Save all mounting hardware 2 Blow out fins of oil cooler and area between fins and screen with compressed air If area between screen and fins is tightly packed remove oil cooler 3 Clean off engine air intake Fig 24 4 Install screen from rear and raise over oil cooler Secure with previously removed hardware Fig 24 ÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑ Ñ...

Page 30: ...ammable and highly explosive WHAT CAN HAPPEN A fire or explosion from gasoline can burn you others and cause property damage HOW TO AVOID THE HAZARD Drain gasoline from the fuel tank when the engine is cold Do this outdoors in an open area Wipe up any gasoline that spills Never drain gasoline near an open flame or where gasoline fumes may be ignited by a spark Never smoke a cigarette cigar or pipe...

Page 31: ...he parking brake 2 Clean area around filler neck of hydraulic tank Fig 28 3 Remove cap from filler neck and look inside to check fluid level Fluid level should be above the bottom of the screen Fig 28 4 If level is low add fluid to raise level to above the bottom of the screen Fig 28 5 Install cap on filler neck m 3292 3 1 2 Figure 28 1 Hydraulic reservoir cap 2 Screen 3 Fluid level Full Replacing...

Page 32: ... page 30 10 Check fluid level in hydraulic tank and add to raise level to cover bottom of screen DO NOT OVER FILL m 1256 1 2 3 Figure 30 1 Hydraulic filter 2 Gasket 3 Adapter Bleeding Hydraulic System The traction system is self bleeding however it may be necessary to bleed the system if fluid is changed or after work is performed on the system 1 Raise front of the machine so wheels are off the gr...

Page 33: ...l rod Fig 31 2 Push and firmly hold motion control lever against forward stop Fig 31 3 Rotate pump control rod until pump control plate is in the full forward position Fig 31 Motion control lever will lift off forward stop IMPORTANT Hold motion control lever firmly against forward stop to determine when pump control reaches stop 4 Rotate control rod 1 turn to lengthen rod and tighten jam nuts Fig ...

Page 34: ...other control stop bolt adjusting as close to the same length as possible 4 Test drive the unit to evaluate reference speed and note location of traction control levers If levers are not at the same position against stops turn longest bolt in to make them the same m 3727 1 2 3 4 Figure 32 1 Reference speed bolt 2 Eye bolt 3 Spring 4 Outer hole Adjusting Reference Stop Spring Tension The resistance...

Page 35: ...plug clutch wire harness Fig 33 Remove belts over clutch m 3295 2 3 1 4 7 6 5 Figure 33 1 Idler 2 Spring 3 Gr box pulley 4 PTO belt 5 Clutch stop 6 Bolt 7 Clutch 4 Install new PTO belts over clutch and route around gearbox pulleys and above spring loaded idler Fig 34 5 Hold spring loaded idler against belts and pull spring down to install on lower bolt mount Fig 33 6 Install clutch stop Fig 33 Tig...

Page 36: ...g 35 5 Install PTO belts refer to Replacing Power Take Off PTO Belts m 3225 4 2 3 5 1 Figure 35 1 Traction belt 2 Engine pulley 3 Fixed idler pulley 4 Hydro pump pulley 5 Spring loaded idler Fuse Service Interval Specification The electrical system is protected by fuses It requires no maintenance however if a fuse blows check component circuit for malfunction or short Fuse Main F1 30 amp blade typ...

Page 37: ... mix thoroughly with the electrolyte solution 1 Clean the top of the battery with a paper towel 2 Lift off the filler caps Fig 37 3 Slowly pour distilled water into each battery cell until the level is up to the lower part of the tube Fig 37 IMPORTANT Do not overfill the battery because electrolyte sulfuric acid can cause severe corrosion and damage to the chassis 4 Press the filler caps onto the ...

Page 38: ...Maintenance 36 Wiring Diagram ...

Page 39: ...Maintenance 37 Hydraulic Diagram HYDRAULIC TANK REAR PUMP FILTER RIGHT MOTOR LEFT MOTOR COOLER A B 94 4712 94 4705 FRONT PUMP A B I 94 4713 98 4384 98 4384 94 4710 94 4709 94 4714 C B A C A I B 94 4705 ...

Page 40: ...e oil into the spark plug hole Now use the starter to crank the engine and distribute the oil inside the cylinder Install the spark plug s Do not install the wire on the spark plug s 8 Check the tire pressure refer to Tire Pressure page 27 9 Charge the battery refer to Battery page 35 10 For long term storage more than 90 days add stabilizer conditioner additive to fuel in the tank 1 oz per gallon...

Page 41: ...oke lever to ON 3 Air cleaner is dirty 3 Clean or replace air cleaner element 4 Spark plug wires is loose or disconnected 4 Install wires on spark plug 5 Spark plugs are pitted fouled or gap is incorrect 5 Install new correctly gapped spark plugs 6 Dirt in fuel filter 6 Replace fuel filter 7 Dirt water or stale fuel is in fuel system 7 Contact Authorized Service Dealer Engine loses power 1 Engine ...

Page 42: ...ages Abnormal vibration 1 Engine mounting bolts are loose 1 Tighten engine mounting bolts 2 Loose engine pulley idler pulley or blade pulley 2 Tighten the appropriate pulley 3 Engine pulley is damaged 3 Contact Authorized Service Dealer Machine does not drive 1 Parking brake is on 2 Traction belt is worn loose or broken 1 Move parking brake to off 2 Contact Authorized Service Dealer 3 Traction bel...

Page 43: ......

Page 44: ...eep The Warranty In Effect You must maintain your TORO Product by following the main tenance procedures described in the operator s manual Such routine maintenance whether performed by a dealer or by you is at your expense What Does This Warranty Not Cover and How Does Your State Law Relate To This Warranty There is no other express warranty except for special emis sion system coverage on some pro...

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