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 13 

 

 

Changing the Oil and Filter 

Service Interval

: After the first 50 hours 

 Every 

100 

hours 

 
1. Start the engine and let it run five minutes. This warms 

the oil so it drains better. 

2. Park the traction unit so that the drain side is slightly 

lower than the opposite side to ensure that the oil drains 
completely. 

3. Place one end of a hose on the drain valve and the other 

end in a pan (Figure 21). 

4. Open the drain valve by turning it counterclockwise, 

pulling out as you turn it (Figure 21). 

Figure 21 

1. Oil drain valve 

2. Hose

 

5. When the oil has drained completely, close the drain 
valve and remove the hose. 
 

Note: 

Dispose of the used oil at a certified recycling center. 

6. Remove the old filter and wipe the filter adapter  

(Figure 22) gasket surface. 

Figure 22 

1. Oil filter 

2. Adapter 

3. Gasket

 

7. Pour new oil of the proper type in through the center hole 

of the filter. Stop pouring when the oil reaches the bottom 
of the threads. 

8. Allow a minute or two for the oil to be absorbed by filter 

material, then pour off the excess oil. 

9. Apply a thin coat of new oil to the rubber gasket on the 

replacement filter (Figure 22). 

 
10. Install the replacement oil filter to the filter adapter. 

Turn the oil filter clockwise until the rubber gasket 
contacts the filter adapter, then tighten the filter an 
additional 3/4 turn (Figure 22). 

11. Remove the oil fill cap and slowly pour approximately 

80% of the specified amount of oil in through the valve 
cover. 

12. Check the oil level; refer to Checking the Oil Level, 

Operation (page 9). 

13. Slowly add additional oil to bring the level to the F (full) 

mark on the dipstick. 

14. Replace the fill cap. 
 

Servicing the Spark Plug 

Service Interval

: Check the spark plugs every 200 hours.

 

Replace the spark plugs every 500 hours. 

 

Type: 

Champion 

RC12YC

 or equivalent 

Air Gap: 

0.28–0.32 inch (0.70-0.80 mm) 

Removing the Spark Plugs 

1. Pull the wires off spark plugs (Figure 23). 

Figure 23 

1. Spark plug wire 

2. Spark plug 

2. Clean around spark plugs. 
3. Remove both spark plugs and metal washers. 

 

Summary of Contents for 22604

Page 1: ...orm No 3366 779 Rev B Brush Chipper Model No 22604 Serial No 310000001 and Up Model No 22604THD Serial No 310000001 and Up Register your product at www Toro com Operator s Manual Original Instructions EN ...

Page 2: ...oid injury and product damage You are responsible for operating the product properly and safely Whenever you need service genuine Toro parts or additional information contact an Authorized Service Dealer or Toro Customer Care and have the model and serial numbers of your product ready Write the numbers in the space provided This Manual identifies potential hazards and has safety messages identifie...

Page 3: ...t the hitch point Before towing check to make certain your machine is correctly and securely attached to the towing vehicle Be sure that the ball hitch you are using is the proper size for the hitch coupler on the machine Be sure the safety chains are properly hooked to the vehicle leaving enough slack for turning Be sure the jack stand is secured in the UP position Do not tow the machine faster t...

Page 4: ...res and keep the wire away from the spark plug to prevent accidental starting before adjusting the machine If the cutting mechanism strikes a foreign object or if your machine should start making an unusual noise or vibration stop the engine and wait five minutes for all moving parts to come to a complete stop and cool Vibration is generally a warning of trouble Disconnect the spark plug wires and...

Page 5: ...parts 119 4699 1 Warning wear leather gloves with narrow cuffs 2 Warning operate from the side of the hopper 3 Severed hand hazard keep hands out of the hopper 4 Thrown object hazard keep bystanders a safe distance from the machine 119 4696 1 Warning do not exceed 45 mph 72 km h when transporting the machine 117 1754 1 Rotation direction of flywheel 117 2718 117 4979 1 Belt entanglement hazard kee...

Page 6: ...he hopper mounted on the side of the machine swings down for machine operation The revolving blades mounted on a flywheel behind the hopper turns branches fed into the hopper into chips The chipper can chip branches and vines ranging in size up to 6 in diameter To release the hopper latch Figure 4 pull on the handle and rotate up or down to engage latch pin behind stop Pull hopper down to open Fig...

Page 7: ...counter clockwise If coupler hitch is too loose on the ball turn adjustment nut one turn clockwise WARNING Failure to properly engage the hitch ball in the coupler ball socket and securely lock the coupler latch mechanism can cause the unit to become detached from the tow vehicle while traveling which may cause serious injury and property damage 5 Install the locking pin to secure the lever Figure...

Page 8: ...thers and can damage property Always place gasoline containers on the ground away from your vehicle before filling Do not fill gasoline containers inside a vehicle or on a truck or trailer bed because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge When practical remove gas powered equipment from the truck or trailer and refuel the equ...

Page 9: ...unning the engine with low oil level can cause engine damage This type of damage is not covered by warranty 7 If the oil level is low slowly pour only enough oil into the crankcase to raise the level to the upper limit See Maintenance section for oil specifications Do not overfill the crankcase with oil because the engine may be damaged 8 Replace the dipstick Changing the Chute Position The chute ...

Page 10: ...pper WARNING Do not attempt to operate the brush chipper without fully understanding all instructions safety precautions and or warnings Always wear protective gear such as safety goggles or face shield hearing protection tight fitting gloves without draw strings or loose cuffs when using the machine Make sure you are standing in the safe operating area as shown in pictures Figure 15 and 16 Never ...

Page 11: ...per or the pile as needed Failure to do so could result in unnecessary jamming of the machine To move a pile of processed material use a spade rake or long handle tool Never use you hands or feet To stop the machine refer to Stopping the Engine Maintenance Maintenance Schedule Daily before each use Check the engine oil level Lubricate the cutter wheel bearings Check the drive belt tension and cond...

Page 12: ... ounces of oil on the pre filter Figure 18 Figure 18 1 Foam element 2 Oil 4 Squeeze the pre filter to distribute the oil 5 Lightly tap the paper filter on a flat surface to remove dust and dirt Figure 19 Figure 19 1 Paper element 2 Rubber seal 6 Inspect the paper filter for dirt tears an oily film and damage to the rubber seal Important Never clean the paper element Replace the paper element if it...

Page 13: ...s the bottom of the threads 8 Allow a minute or two for the oil to be absorbed by filter material then pour off the excess oil 9 Apply a thin coat of new oil to the rubber gasket on the replacement filter Figure 22 10 Install the replacement oil filter to the filter adapter Turn the oil filter clockwise until the rubber gasket contacts the filter adapter then tighten the filter an additional 3 4 t...

Page 14: ...m the fuel lines Figure 25 4 Install a new filter with arrow pointing toward the carburetor and move the hose clamps close to the filter 5 Remove the clamp blocking fuel flow and open the fuel valve Charging the Battery DANGER ARNING Charging the battery produces gases that can explode Never smoke near the battery and keep sparks and flames away from battery Important Always keep the battery fully...

Page 15: ...four 4 bolts securing the rear of the belt guard to the engine 4 Loosen the belt tension bolt and jam nut slide the engine toward the flywheel housing to loosen belt Figure 29 Figure 29 1 Tension bolt and jam nut 2 Engine mounting bolt 5 Replace drive belt 6 Adjust the drive belt tension by tightening tension bolt and jam nut against the engine mounting plate 7 Lay a straightedge across clutch and...

Page 16: ... sap mulch and dirt from inside the top cover of the housing to prevent the flywheel from rubbing on it Inspecting the Cutter Block Check the gap between the blade and cutter block Make sure the cutter block has a crisp edge and is no farther than 1 8 3 2 mm away from the blade Figure 32 If the cutter block is worn or chipped it should be replaced Figure 32 1 Blade 2 Cutter block Lubricate the Whe...

Page 17: ...erly Recycle as per local codes IMPORTANT Do not store stabilizer conditioned gasoline over 90 days 5 Restart the engine and run it until it stops 6 Choke the engine 7 Start and run the engine until it will not start again 8 Change the fuel filter refer to Changing the Fuel Filter 9 Service the air cleaner refer to Servicing the Air Cleaner 10 Service the engine oil and filter refer to Changing th...

Page 18: ...ywheel stalling 1 The engine speed is too slow causing the clutch to slip 2 Check for loose or damaged drive belt 3 Check for a dull or damaged blades 1 Run the engine at full throttle 2 Tighten or replace drive belt 3 Replace with sharp blades Flywheel does not turn 1 Build up of chips and debris around flywheel 2 Check for loose or damaged drive belt 3 Clutch overheated or damaged 1 Remove any b...

Page 19: ...19 Notes ...

Page 20: ...rating the Product in an abusive negligent or reckless manner Parts subject to consumption through use unless found to be defective Examples of parts which are consumed or used up during normal Product operation include but are not limited to teeth tines blades spark plugs tires tracks filters chains etc Failures caused by outside influence Items considered to be outside influence include but are ...

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