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9

Figure 7

Nozzle Door Height Adjustment

The nozzle adjustment levers are located on each side 
of the nozzle door. The nozzle door can be adjusted to 
any of five positions, ranging from 1/2” to 3” ground 
clearance that will provide the best performance for the 
operating conditions. Slide the height adjustment lever 
forward or backward for adjusting the nozzle door 
upwards or downwards. Height must be adjusted 
equally. In general, raise the nozzle to vacuum a thick 
layer of leaves and lower the nozzle for smooth 
surfaces. See Figure 8.

Figure 8 

Drive Clutch Cable Adjustment

Adjust the drive clutch control if the chipper shredder 
vacuum moves forward with the drive clutch control 
disengaged, if it does not self-propel with the drive 
clutch control engaged, or if drive belt is slipping (unit 
hesitates while engine maintains the same speed). Use 
the adjustment wheel located in the clutch control 
housing to tighten or loosen the clutch cable. In 
addition, the adjustment wheel may also be used to 
determine the position in which the drive clutch control 
is engaged. If it is more comfortable to have the drive 
engaged with the lever further away from the handle, 
tighten the clutch cable. See Figure 9.

Figure 9 

Engine Adjustments

Refer to the separate engine manual for engine 
adjustment instructions.

SECTION 6:  MAINTAINING YOUR CHIPPER SHREDDER VACUUM

WARNING: Before performing any mainte-
nance or repairs, stop the engine, wait
until the machine comes to a complete
stop, disconnect the spark plug wire and
ground against the engine to prevent unin-
tended starting.

Lubrication 

(Refer to Figure 5)

Wheels: Lubricate the rear wheels with light oil once a 
season.

Nozzle Door Adjustment Levers: Lubricate each 
adjustment lever once a season with light oil.

Front Caster Wheels: Grease fittings are located on 
the front caster wheels to provide easy lubrication of the 
swivel pins once a season.

Smaller Hole
(Rotate Freely)

Larger Hole
(Locked)

Nozzle Door
Adjustment
Lever

Tighten

Loosen

Adjustment
Wheel

Summary of Contents for 203

Page 1: ...k arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required...

Page 2: ...rts Choose from the options below Visit yardman com for many useful suggestions Click on Customer Support button and you will get the four options reproduced here Click on the appropriate button and h...

Page 3: ...ever attempt to unclog either the feed intake or discharge opening remove or empty vacuum bag or inspect and repair the machine while the engine is running Shut the engine off and wait until all movin...

Page 4: ...vacuum bag must be kept closed at all times during operation 10 Never operate without either the inlet nozzle or optional hose attachment properly attached to the machine Never attempt to attach or c...

Page 5: ...line and oil as instructed in the separate engine manual before operating your machine NOTE Reference to right or left hand side of the chipper shredder vacuum is observed from the operating position...

Page 6: ...hute or vacuumed up through the nozzle See Figure 5 Chipper Chute Allow twigs and small branches up to 2 in diameter to be fed into the impeller for chipping See Figure 5 Caster Locks The caster locks...

Page 7: ...xtinguish cigarettes cigars pipes and other sources of ignition NOTE See your engine manual packed with your unit for more detailed instructions Starting Engine Attach spark plug wire to spark plug Ma...

Page 8: ...ugh the nozzle for shredding After material has been shredded by the blades on the impeller assembly it will be discharged into catcher bag Do not attempt to shred or chip any material other than vege...

Page 9: ...housing to tighten or loosen the clutch cable In addition the adjustment wheel may also be used to determine the position in which the drive clutch control is engaged If it is more comfortable to hav...

Page 10: ...ag from the unit Remove the four self tapping screws from the bottom of the discharge chute and the hex bolt flat washer and hex nut from the top Remove the discharge chute assembly See Figure 10 Remo...

Page 11: ...part number 753 0638 is required to remove impeller assembly Contact your local service dealer Disconnect the spark plug wire and ground it away from the spark plug Drain the gasoline and oil from th...

Page 12: ...ne and make sure the hole in the mounting adapter is facing up Place the inner housing against mounting adapter and frame Secure with the five hex bolts and two hex nuts previously removed Refer to Fi...

Page 13: ...re loose 2 Unit running on CHOKE If Equipped 3 Blocked fuel line or stale fuel 4 Water or dirt in fuel system 5 Dirty air cleaner 6 Carburetor out of adjustment 1 Connect and tighten spark plug wire 2...

Page 14: ...ID x 872 OD 4 731 1690A Discharge Chute 5 764 04001 Bag 6 631 0069 Nozzle Assembly 7 731 1831 Nozzle Flap 8 710 0969 Screw 9 720 0190 Height Adjustment Knob 10 732 0754 Spring Lever 11 781 0702 Index...

Page 15: ...ew 5 16 18 15 712 0384 Hex Lock Nut 1 2 13 16 781 0627 Chipper Blade Cover 17 712 3004A Hex Flange Lock Nut 5 16 18 18 681 0098 Inner Flail Housing Assembly 19 781 0599 Upper Shredder Blade 22 710 077...

Page 16: ...16 Model 203 8 1 5 6 4 7 5 6 4 2 11 9 10 8 3 17 13 17 14 12 15 18 19 16 35 33 38 49 44 30 40 36 39 32 31 45 55 51 50 48 42 41 54 52 27 24 27 29 25 28 26 23 43 34 22 37 47 50 46 53 21 56 57...

Page 17: ...er working machine use Factory Approved Parts V BELTS are especially designed to engage and disengage safely A substitute non OEM V Belt can be dangerous by not disengaging completely 30 741 0415 Flan...

Page 18: ...6 7 8 8 9 10 11 12 13 14 15 13 17 18 19 20 21 22 26 26 12 13 13 12 14 12 12 26 26 27 18 18 28 29 29 30 30 31 32 32 13 13 33 20 34 34 35 35 36 36 37 37 39 40 38 38 41 42 43 38 38 37 44 44 45 45 46 46...

Page 19: ...04A Hex Washer Screw 5 16 18 x 625 30 741 0413 Hex Flange Bearing 631 x 720 31 681 0097A Frame Assembly 32 781 0700 Axle Bracket 33 781 0697 Transmission Cover 34 747 0924 Lock Pin 35 732 0306 Compres...

Page 20: ...tments and normal deterioration of the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sol...

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