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Hydraulic System
Maintenance

Servicing the Hydraulic
System

Checking the Hydraulic Fluid

Check the hydraulic fluid level as follows:

Check the hydraulic fluid level before engine is first
started.

Check the hydraulic fluid level after first 8 operating
hours.

Check the hydraulic fluid level after every 25
operating hours.

Fluid Type: Mobil 1 15W-50 synthetic motor oil or
equivalent synthetic oil.

Important:

Use oil specified or equivalent. Other

fluids could cause system damage.

Hydraulic System Oil Capacity: 77 oz. (2.3 l)

Note:

There are two ways of checking the hydraulic oil.

One is when the oil is warm and one is when the oil is
cold. The baffle inside the tank has two levels depending
if the oil is warm or cold.

1. Position machine on a level surface.

2. Disengage the power take off (PTO) and shut off

the engine.

3. Wait for all moving parts to stop before leaving the

operating position and then set the parking brake.

4. Clean area around cap and filler neck of hydraulic

tank (Figure 52).

Figure 52

1.

Cap

3.

Cold fluid level-full

2.

Baffle

4.

Hot fluid level-full

5. Remove cap from filler neck. Look inside to check if

there is fluid in the reservoir. (Figure 52).

6. If there is no fluid, add fluid to the reservoir until it

reaches the cold level of the baffle.

7. Run the machine at low idle for 15 minutes to allow

any air to purge out of the system and warm fluid.
Refer to Starting and Stopping the Engine.

8. Recheck the fluid level while the fluid is warm. If

required, add fluid to the reservoir until it reaches
the hot level of the baffle.

Note:

The fluid level should be to the top of the hot

level of the baffle, when the fluid is warm (Figure 52).

9. Install cap on filler neck.

Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.

If hydraulic fluid is injected into the skin
it must be surgically removed within a few
hours by a doctor familiar with this type of
injury. Gangrene may result if this is not
done.

Keep body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.

Use cardboard or paper to find hydraulic
leaks.

Safely relieve all pressure in the hydraulic
system before performing any work on the
hydraulic system.

Make sure all hydraulic fluid hoses and
lines are in good condition and all hydraulic
connections and fittings are tight before
applying pressure to hydraulic system.

Replacing the Hydraulic Filter

Change the hydraulic filter as follows:

After the first 8 operating hours.

After every 200 operating hours.

1. Disengage the PTO and set the parking brake.

2. Stop the engine and wait for all moving parts to stop

before leaving the operating position.

Important:

Do not substitute automotive oil

filter or severe hydraulic system damage may
result.

3. Remove hydraulic reservoir cap and temporarily

cover opening with a plastic bag and rubber band to
prevent all hydro fluid from draining out.

42

Summary of Contents for 30984

Page 1: ...No 3356 674 Rev B Commercial Walk Behind Mower Fixed Deck Pistol Grip Hydro with 36in TURBO FORCE Cutting Unit Model No 30984 Serial No 270000001 and Up Register at www Toro com Original Instructions...

Page 2: ...ding a dealer or to register your product Whenever you need service genuine Toro parts or additional information contact an Authorized Service Dealer or Toro Customer Service and have the model and se...

Page 3: ...Mower Belt Idler 27 Greasing the Pump Control and Bell Crank 27 Engine Maintenance 27 Servicing the Air Cleaner 27 Servicing the Engine Oil 28 Servicing the Spark Plugs 30 Fuel System Maintenance 31...

Page 4: ...mmable and vapors are explosive Use only an approved container Never remove gas cap or add fuel with engine running Allow engine to cool before refueling Do not smoke Never refuel or drain the machine...

Page 5: ...mation you must know This product is capable of amputating hands and feet and throwing objects Always follow all safety instructions to avoid serious injury or death This product is designed for cutti...

Page 6: ...Use only genuine replacement parts to ensure that original standards are maintained Check brake operation frequently Adjust and service as required 6...

Page 7: ...Slope Chart 7...

Page 8: ...Replace any decal that is damaged or lost 1 523552 43 8480 66 1340 95 2814 98 0776 98 5130 1 Warning read the Operator s Manual for instructions on torquing the blade bolt nut to 75 80 ft lb 102 106 N...

Page 9: ...98 3296 103 2103 104 8569 105 4109 105 4110 106 0699 106 2733 1 Fast 3 Slow 2 Continuous variable setting 9...

Page 10: ...Fast 10 Neutral 2 Drive 5 Engine run 8 Continuous variable setting 3 Neutral 6 Warning wear ear protection 9 Slow 106 2743 Manufacturer s Mark 1 Indicates the blade is identified as a part from the o...

Page 11: ...eck the tire pressure refer to Checking the Tire Pressure Note The cutting blades are set to a 3 inch 76mm height of cut at initial purchase The axle position is D with 4 spacers below both the spindl...

Page 12: ...Manual 1 Engine Operator s Manual 1 Parts Catalog 1 Safety Video 1 Registration Card 1 Oil drain hose Procedure Read the Operator s Manual View the safety video Fill out the registration card and mai...

Page 13: ...r and has two positions Run and Off Speed Control Lever This machine has a variable speed control with a neutral position This controls how fast the machine will travel forward Drive Levers Release dr...

Page 14: ...u and others and can damage property Fill the fuel tank outdoors in an open area when the engine is cold Wipe up any gasoline that spills Never fill the fuel tank inside an enclosed trailer Do not fil...

Page 15: ...r storage it is recommended that the fuel tank be drained Cleans the engine while it runs Eliminates gum like varnish buildup in the fuel system which causes hard starting Important Do not use fuel ad...

Page 16: ...Figure 8 1 Split ring 2 Control shield bolt After the engine is started pull the chain straight out from side of machine until ring can be removed from shield bolt Slowly release tension on chain 3 Di...

Page 17: ...s left unattended Setting the Neutral Lock 1 Squeeze the drive levers back until an increase in force is felt 2 Place thumbs on the upper part of the locks and move them back Figure 10 Figure 10 1 Han...

Page 18: ...ches Check the operation of the interlock switches daily and replace any damaged switches before operating the machine Understanding the Safety Interlock System The safety interlock system is designed...

Page 19: ...speed 3 Release the neutral lock Refer to Releasing the Neutral Lock 4 Slowly release the drive levers to move forward Figure 13 To go straight release drive levers equally Figure 13 To turn squeeze t...

Page 20: ...ition the cam lock and baffle to give the best quality of cut 1 Disengage the PTO move the motion control levers to the neutral locked position and set the parking brake 2 Stop the engine remove the k...

Page 21: ...gure 17 Figure 17 Position C This is the full open position The suggested use for this position is as follows Figure 18 Use in tall dense grass mowing conditions Use in wet conditions Lowers the engin...

Page 22: ...cause the grass deflector routes material down toward the turf If the grass deflector is ever damaged replace it immediately Never put your hands or feet under the mower Never try to clear discharge a...

Page 23: ...and then set the parking brake 3 Place a jack under the rear center of the engine frame Raise the back end of the engine frame up enough to remove the drive wheels 4 Remove the drive wheels 5 Loosen...

Page 24: ...r flange bolts 3 8 x 1 inch and flange nuts securing handle to rear frame Figure 23 4 Pivot handle to desired operating position and install lower flange bolts 3 8 x 1 inch and flange nuts into mounti...

Page 25: ...1 7 8 inch 48 mm 2 1 8 inch 54 mm 2 3 8 inch 60 mm 2 5 8 inch 67 mm 2 7 8 inch 73 mm C 2 0 2 1 8 inch 55 mm 2 3 8 inch 60 mm 2 5 8 inch 67 mm 2 7 8 inch 73 mm 3 1 8 inch 79 mm C 2 1 2 1 4 inch 57 mm 2...

Page 26: ...e engine oil Check the spark plugs Check and clean engine cooling fins and shrouds Every 200 hours Replace the paper air cleaner element Replace the oil filter Replace the fuel filter Before storage P...

Page 27: ...nk 6 Caster pivot Engine Maintenance Servicing the Air Cleaner Service Interval Specification Foam element Clean it after every 25 operating hours Paper element Check it after every 50 operating hours...

Page 28: ...ment Figure 25 2 Place the air cleaner assembly onto the air cleaner base and secure it with the 2 wing nuts Figure 25 3 Place the air cleaner cover into position and tighten the cover knob Figure 25...

Page 29: ...wait for all moving parts to stop before leaving the operating position 5 Slide the drain hose over the oil drain valve 6 Place a pan below the drain hose Rotate oil drain valve to allow oil to drain...

Page 30: ...spark plugs and a gapping tool feeler gauge to check and adjust the air gap Install a new spark plugs if necessary Type Champion RCJ8Y or equivalent Air Gap 0 030 inch 0 75 mm Removing the Spark Plug...

Page 31: ...doors in an open area Wipe up any gasoline that spills Never smoke when draining gasoline and stay away from an open flame or where a spark may ignite the gasoline fumes Draining the Fuel Tank 1 Park...

Page 32: ...gage the PTO and set the parking brake 2 Stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 3 Close fuel shut off valve at the fuel tank Figure...

Page 33: ...oximately Figure 34 5 Adjust the threaded yoke at the bottom of the speed control linkage until the tabs are at the 6 o clock position Figure 34 Figure 34 1 Speed control rod 4 Tabs 6 o clock position...

Page 34: ...you have not reached the end of the neutral lock slot If you have shorten the control lever linkage Refer to Adjusting the Control Rod 9 If the wheel turns while holding the drive lever in neutral the...

Page 35: ...ng nut on left hydro control linkage as shown in Figure 38 9 Turn the left rear adjusting nut counter clockwise until wheel rotates forward Figure 38 10 Turn the rear adjusting nut clockwise 1 4 of a...

Page 36: ...40 7 Adjust spring length by turning nut at front of spring Figure 40 Figure 40 1 Hydro control linkage 3 Spring 2 Quick track knob 4 1 inch 26 mm Adjusting the Control Rod Checking the Control Rod 1...

Page 37: ...hard surface such as concrete or asphalt 4 If the unit tracks to one side or the other turn the quick track knob Turn the knob right to steer right and turn the knob left to steer left Figure 43 Figur...

Page 38: ...n on flywheel end and carburetor governor levers and linkage This will help insure adequate cooling and correct engine speed and will reduce the possibility of overheating and mechanical damage to the...

Page 39: ...s not hold securely adjust it 1 Check the parking brake before you adjust it refer to Checking the Parking Brake 2 Release the parking brake refer to Releasing the Parking Brake 3 Remove the spring ha...

Page 40: ...10 15 lbf 44 67 N with the belt deflected 1 2 inch 13 mm halfway between the pulleys Figure 48 Figure 48 1 Mower belt with 1 2 inch 13mm deflection 2 Idler pulley 8 Engage the blade control PTO lever...

Page 41: ...s and 25 operating hours thereafter Check the belt tension after every 50 operating hours Important The belt must be tight enough to not slip during heavy loads while cutting grass Over tensioning the...

Page 42: ...the system and warm fluid Refer to Starting and Stopping the Engine 8 Recheck the fluid level while the fluid is warm If required add fluid to the reservoir until it reaches the hot level of the baffl...

Page 43: ...ilter are removed or any of the hydraulic lines are disconnected The critical area for purging air from the hydraulic system is between the oil reservoir and each charge pump located on the top of eac...

Page 44: ...nds away from pin hole leaks or nozzles that eject high pressure hydraulic fluid Use cardboard or paper to find hydraulic leaks Safely relieve all pressure in the hydraulic system before performing an...

Page 45: ...and 2 must not exceed 1 8 inch 3 mm If this dimension exceeds 1 8 inch 3 mm the blade is bent and must be replaced Refer to Removing the Blades and Installing the Blades A blade that is bent or damag...

Page 46: ...her and blade Select the proper number of spacer s for the height of cut and slide the bolt into the spindle Figure 58 Important The curved part of the blade must point upward toward the inside of the...

Page 47: ...the pivot brackets Figure 62 Remove damaged or worn grass deflector Figure 62 1 Bolt 5 Spring installed 2 Spacer 6 Grass Deflector 3 Locknut 7 L end of spring place behind deck edge before installing...

Page 48: ...ne to distribute conditioned fuel through the fuel system 5 minutes C Stop engine allow to cool and drain the fuel tank refer to Servicing the Fuel Tank in Fuel System Maintenance page 31 or operate e...

Page 49: ...er or stale fuel is in the fuel system 8 Contact an Authorized Service Dealer 1 Engine load is excessive 1 Reduce the ground speed 2 Oil level in the crankcase is low 2 Add oil to the crankcase Engine...

Page 50: ...ck the belt tension 2 Mower deck belt is broken 2 Install new deck belt 3 Mower deck belt is off pulley 3 Inspect the belt and replace if damaged Check the pulleys and idlers and adjust the belt tensi...

Page 51: ...Schematics Electrical Schematic Rev Hydraulic Schematic Rev 51...

Page 52: ...Notes 52...

Page 53: ...Notes 53...

Page 54: ...Notes 54...

Page 55: ...heduled for replacement as required maintenance in the written instructions must be warranted for the warranty period of two years If any such part fails during the period of warranty coverage it must...

Page 56: ...s no other express warranty except for special emission system coverage on some products This express warranty does not cover the following Cost of regular maintenance service or parts such as lters f...

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