Yard Machines 21A-450 Series, Operator'S Manual

Page 1: ...ble 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 by law Section 4442 of th...

Page 2: ...Department or an authorized dealer You can locate the model number by standing in the operating position behind the unit and looking down at the center of the rear tine cover A sample model plate is...

Page 3: ...foreign objects which could be tripped over and cause personal injury 2 Wear sturdy rough soled work shoes and close fitting slacks and shirts Loose fitting clothes or jewelry can be caught in movable...

Page 4: ...ire and ground it against the engine Inspect thoroughly for damage Repair any damage before starting and operating 18 Keep all shields guards and safety devices in place and operating properly 19 Neve...

Page 5: ...SECTION 2 LOOSE PARTS Handle Assembly Depth Control Stake Rod Assembly i n S i i i II i I i i NOTE Cable tie not shown 5...

Page 6: ...bly Tip the tiller forward so it rests on front counterweight Raise the tine shield hinge flap assembly Remove T knob flat washer and hex bolt from depth stake Insert the depth stake assembly in front...

Page 7: ...andle using cable tie Refer to Figure 6 Cut off excess end of cable tie Attaching TheControlRod Make sure the handle assembly is in the highest position Remove hairpin clips from control rod rubber wa...

Page 8: ...gine manual for further information ControlLever The choke lever is located to the left of the throttle It is used to enrich the fuel mixture in the carburetor when starting a cold engine See Engine m...

Page 9: ...oStopEngine Move throttle control to the STOP position Disconnect spark plug wire and ground to prevent accidentally starting while equipment is unattended NOTE After the first ten hours of operation...

Page 10: ...er to the Know Your Tiller section for details of handle adjustment BeltTension Adjustment Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt Adjustment...

Page 11: ...hout air cleaner completely assembled The spark plug should be cleaned and the gap reset every 25 hours of engine operation Spark plug replacement is recommended at the start of each tiller season che...

Page 12: ...ent to cause serious injury SECTION 9 OFF SEASON STORAGE If the tiller will not be used for a period longer than 30 days the following steps should be taken to prepare the tiller for storage Clean the...

Page 13: ...tle lever to start position Clean fuel line Refer to the engine manual packed with your unit Move switch to ON position Connect wire to spark plug Clean adjust gap or replace Refer to the engine manua...

Page 14: ...SECTION 11 PARTS LISTFORMODEL 450 SERIES 14...

Page 15: ...36 0163 736 0351 736 0407 736 0518 736 3088 738 0645 738 0648 738 1013 741 0124 741 0420 741 0421 741 0563 741 0862 750 0258 750 0570 750 0664 750 0671 786 0171 786 0236 737 0300 737 0288 686 0107 DES...

Page 16: ...Model 450Series 18 20 _ 3 60 _ _ 6 6 61 4 62 _ 9 37 34 27 8 21 44 J 49 26 26 40 35 59 58 53 55 56 54 57 16...

Page 17: ...6 t 8 Cap Nut Hex Screw 5 16 18 x 75 Lg Rod REF I NO I PART NO DESCRIPTION 34 I 750 0885 Spacer 435 OD x 322 I D 35 I 786 0090 36 1786 0113 _ _ 786 0176 38 786 0177 39 1786 0178 40 I 786 0179 41 1786...

Page 18: ...Model450 Series 27 46 _ _ 45 12 f_ 9 1 11 44 22 34 25 14 23 18 10 28 2 _ 16 32 17 24 21 7 3 40 L 5 s 39 _o 31 30 42 _ _ 41 43 29 18...

Page 19: ...0434 Belt 4Lx58 16Lg 40 710 1017 Screw1 4 14 x 625 Lg 21 756 0405 Fl ldlerw Flange 3 75 O D 41 712 0392 IAcorn Lock Nut 22 756 0971 Outer Engine Pulley Half 42 736 0463 IFI Washer 1 4 x 620 Lg 756 09...

Page 20: ...arranty on these items b Log splitter pumps valves and cylinders have a sepa rate one year warranty c Routine maintenance items such as lubricants filters blade sharpening and tune ups or adjustments...