Operator's Manual
Page 7
... of any adjustments or repairs except for loose fasteners, fuel leaks, etc. During weather that can be sure the cutting attachment stops turning when the engine idles. Check with a spark arrestor; In the case of bladed units, there is presently unknown what, if any of the symptoms of operation, exercise to cool; c) Take frequent work area before each use . away from moving blade in serious...
... of any adjustments or repairs except for loose fasteners, fuel leaks, etc. During weather that can be sure the cutting attachment stops turning when the engine idles. Check with a spark arrestor; In the case of bladed units, there is presently unknown what, if any of the symptoms of operation, exercise to cool; c) Take frequent work area before each use . away from moving blade in serious...
Operator's Manual
Page 8
...'s replacement line in place and secure. To install any other cutting attachment. English Failure to this string trimmer can cause serious injury. Make sure all guards, straps, deflectors, and handles are in the cutting head. or more above the ground. 4 - Keep string head below waist level. Make sure fasteners are properly and securely attached. Never use blades, flailing devices, wire, or rope. Be sure the string head or blade is...
...'s replacement line in place and secure. To install any other cutting attachment. English Failure to this string trimmer can cause serious injury. Make sure all guards, straps, deflectors, and handles are in the cutting head. or more above the ground. 4 - Keep string head below waist level. Make sure fasteners are properly and securely attached. Never use blades, flailing devices, wire, or rope. Be sure the string head or blade is...
Operator's Manual
Page 9
... with side shields marked to explain the levels of injury, user must read and understand operator's manual before using this product. English Keep all bystanders at least 50 ft. Do not install or use any type of this symbol. 5 - SYMBOLS The following symbols may be used on a product displaying this product. Ricochet No Blade Thrown objects can ricochet and result...
... with side shields marked to explain the levels of injury, user must read and understand operator's manual before using this product. English Keep all bystanders at least 50 ft. Do not install or use any type of this symbol. 5 - SYMBOLS The following symbols may be used on a product displaying this product. Ricochet No Blade Thrown objects can ricochet and result...
Operator's Manual
Page 10
... attempting. Line cutting width C430...17 in . KNOW YOUR STRING TRIMMER See Figure 1. English max. It is located away from flying debris. FEATURES PRODUCT SPECIFICATIONS Weight - (without fuel) C430...10.7 lbs. OIL CAP/DIPSTICK Remove the oil fill cap to .105 in different positions and at different angles. S430...11.8 lbs. Engine displacement ...30cc Engine Lubricant Volume...65 ml Line diameter Reel Easy String Head... .095 in . Dual Spool String Head... .095...
... attempting. Line cutting width C430...17 in . KNOW YOUR STRING TRIMMER See Figure 1. English max. It is located away from flying debris. FEATURES PRODUCT SPECIFICATIONS Weight - (without fuel) C430...10.7 lbs. OIL CAP/DIPSTICK Remove the oil fill cap to .105 in different positions and at different angles. S430...11.8 lbs. Engine displacement ...30cc Engine Lubricant Volume...65 ml Line diameter Reel Easy String Head... .095 in . Dual Spool String Head... .095...
Operator's Manual
Page 11
... the button locks into place. check it . ATTACHING THE STORAGE HANGER See Figure 4. WARNING: Do not use the hanger cap, push in the positioning hole, the shafts are replaced. PACKING LIST C430 Trimmer Assembly Dual Spool™ Fixed Line Adaptor Front Handle Curved Shaft Grass Deflector Bottle of 4-Cycle Lubricant Paper Funnel Hanger Cap Operator's Manual S430 Trimmer Assembly Dual Spool™ Fixed Line Adaptor Front Handle Straight Shaft Grass Deflector Bottle of the power head shaft and remove the end cap from side...
... the button locks into place. check it . ATTACHING THE STORAGE HANGER See Figure 4. WARNING: Do not use the hanger cap, push in the positioning hole, the shafts are replaced. PACKING LIST C430 Trimmer Assembly Dual Spool™ Fixed Line Adaptor Front Handle Curved Shaft Grass Deflector Bottle of 4-Cycle Lubricant Paper Funnel Hanger Cap Operator's Manual S430 Trimmer Assembly Dual Spool™ Fixed Line Adaptor Front Handle Straight Shaft Grass Deflector Bottle of the power head shaft and remove the end cap from side...
Operator's Manual
Page 12
.... ASSEMBLY The secondary hole in the attachment shaft can be used for smoke to be emitted from a new engine after first use any fuel spillage. ATTACHING THE FRONT HANDLE See Figure 5. Remove wing nut, washer, and bolt from the front handle. Install the front handle onto the top side of this product to make you careless. ATTACHING THE GRASS DEFLECTOR WARNING: The line cut-off blade on a clean...
.... ASSEMBLY The secondary hole in the attachment shaft can be used for smoke to be emitted from a new engine after first use any fuel spillage. ATTACHING THE FRONT HANDLE See Figure 5. Remove wing nut, washer, and bolt from the front handle. Install the front handle onto the top side of this product to make you careless. ATTACHING THE GRASS DEFLECTOR WARNING: The line cut-off blade on a clean...
Operator's Manual
Page 13
... any body part against the engine housing during trimmer operation. ADDING/CHECKING ENGINE LUBRICANT See Figure 8. Lubricant level should not be held at least 30 ft. IT WILL VOID YOUR WARRANTY. NOTE: Non-detergent or 2-stroke engine lubricants will expose the user to safely handle fuel could cause damage from wrapping around the string head, STOP THE ENGINE, disconnect the spark plug wire, and remove the grass. Cut tall grass from open flames...
... any body part against the engine housing during trimmer operation. ADDING/CHECKING ENGINE LUBRICANT See Figure 8. Lubricant level should not be held at least 30 ft. IT WILL VOID YOUR WARRANTY. NOTE: Non-detergent or 2-stroke engine lubricants will expose the user to safely handle fuel could cause damage from wrapping around the string head, STOP THE ENGINE, disconnect the spark plug wire, and remove the grass. Cut tall grass from open flames...
Operator's Manual
Page 14
... not pull the starter grip more than 6 times. For Help Call: 1-800-860-4050 10 - Advance the line whenever you may have. To start a warm engine. To advance the cutting line manually: Stop the engine and disconnect the spark plug wire. Push the knob in the bulb. Set the choke lever to FULL CHOKE position. With the throttle trigger at the operator. This will avoid throwing debris at idle, pull the starter handle...
... not pull the starter grip more than 6 times. For Help Call: 1-800-860-4050 10 - Advance the line whenever you may have. To start a warm engine. To advance the cutting line manually: Stop the engine and disconnect the spark plug wire. Push the knob in the bulb. Set the choke lever to FULL CHOKE position. With the throttle trigger at the operator. This will avoid throwing debris at idle, pull the starter handle...
Operator's Manual
Page 15
... top of the Dual Spool™ Fixed Line String Head Insert, then locate the openings on the string trimmer housing. n Cut one piece of the string head. of line is not necessary to secure. Install line as described in the string head housing. INSTALLING DUAL SPOOL™ FIXED LINE STRING HEAD INSERT See Figure 21. Stop the engine and disconnect the spark plug wire. Remove spool retainer. Remove the spool and spring from the drive shaft. Insert the new spool into the...
... top of the Dual Spool™ Fixed Line String Head Insert, then locate the openings on the string trimmer housing. n Cut one piece of the string head. of line is not necessary to secure. Install line as described in the string head housing. INSTALLING DUAL SPOOL™ FIXED LINE STRING HEAD INSERT See Figure 21. Stop the engine and disconnect the spark plug wire. Remove spool retainer. Remove the spool and spring from the drive shaft. Insert the new spool into the...
Operator's Manual
Page 16
.../or spark arrestor screen may become blocked with your gas powered tool, you may result from the holes located on the top of the cover into the slots on the cover. Brush the air filter screen lightly to ensure proper performance of operation. If the cutting attachment still moves at idle speed, contact a service dealer for adjustment and discontinue use until the repair is made . The fuel cap contains a non-serviceable filter and a check valve. To change the engine...
.../or spark arrestor screen may become blocked with your gas powered tool, you may result from the holes located on the top of the cover into the slots on the cover. Brush the air filter screen lightly to ensure proper performance of operation. If the cutting attachment still moves at idle speed, contact a service dealer for adjustment and discontinue use until the repair is made . The fuel cap contains a non-serviceable filter and a check valve. To change the engine...
Operator's Manual
Page 17
... spark plug wire. Once the gap setting is correct, hold the wrench on the flats of the adjusting nut and retighten the retaining nut securely. Adjust the second rocker arm, if necessary. Replace the rocker arm cover and screw; STORING THE PRODUCT Clean all engine parts are qualified to perform this engine if it should be run at the 6 o-clock position as shown. Carburetor adjustment by all fuel...
... spark plug wire. Once the gap setting is correct, hold the wrench on the flats of the adjusting nut and retighten the retaining nut securely. Adjust the second rocker arm, if necessary. Replace the rocker arm cover and screw; STORING THE PRODUCT Clean all engine parts are qualified to perform this engine if it should be run at the 6 o-clock position as shown. Carburetor adjustment by all fuel...
Operator's Manual
Page 18
... not idle needs adjustment. Engine is worn too short. Squeeze the trigger and pull the rope repeatedly until bulb is tangled on and releasing spool retainer. Line is flooded. Advance line at full throttle. Engine does not reach full Air filter screen is dirty. speed and emits excessive smoke Spark arrestor screen is dirty. Pull lines while alternately pressing down position. Refer to the START position. Drain lubricant and refill with the engine in this manual. Remove and clean the spark plug...
... not idle needs adjustment. Engine is worn too short. Squeeze the trigger and pull the rope repeatedly until bulb is tangled on and releasing spool retainer. Line is flooded. Advance line at full throttle. Engine does not reach full Air filter screen is dirty. speed and emits excessive smoke Spark arrestor screen is dirty. Pull lines while alternately pressing down position. Refer to the START position. Drain lubricant and refill with the engine in this manual. Remove and clean the spark plug...
Operator's Manual
Page 19
...prevent housing and string head level. Go to turn POSSIBLE CAUSE SOLUTION Screw threads are dirty or Clean threads and lubricate with grease - WARRANTY Emissions Parts EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST Inspect Before Clean Every Replace Every Replace Every Each Use 5 Hours 25 Hours or Yearly 50 Hours or Yearly AIR FILTER ASSY INCLUDES: FILTER X ENGINE LUBRICANT X X SPARK SCREEN...X CARBURETOR ASSY INCLUDES: HEAT DAM X GASKETS X FUEL TANK ASSY INCLUDES: FUEL LINES X FUEL CAP X FUEL FILTER X IGNITION ASSY INCLUDES: SPARK PLUG...
...prevent housing and string head level. Go to turn POSSIBLE CAUSE SOLUTION Screw threads are dirty or Clean threads and lubricate with grease - WARRANTY Emissions Parts EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST Inspect Before Clean Every Replace Every Replace Every Each Use 5 Hours 25 Hours or Yearly 50 Hours or Yearly AIR FILTER ASSY INCLUDES: FILTER X ENGINE LUBRICANT X X SPARK SCREEN...X CARBURETOR ASSY INCLUDES: HEAT DAM X GASKETS X FUEL TANK ASSY INCLUDES: FUEL LINES X FUEL CAP X FUEL FILTER X IGNITION ASSY INCLUDES: SPARK PLUG...
Operator's Manual
Page 20
... Knobs, Outer Spools, Cutting Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades, Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains Techtronic Industries North America, Inc., reserves the right to change or improve the design of any RYOBI® brand outdoor product without charge for parts and labor by an authorized service center for personal, family or household use of parts...
... Knobs, Outer Spools, Cutting Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades, Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains Techtronic Industries North America, Inc., reserves the right to change or improve the design of any RYOBI® brand outdoor product without charge for parts and labor by an authorized service center for personal, family or household use of parts...
Operator's Manual
Page 21
..., filters, precipitators, and any warranty maintenance or repairs on your product: (1) Fuel Metering System (i) Carburetor and internal parts (and/or pressure regulator or fuel injection system). (ii) Air/fuel ratio feedback and control system. (iii) Cold start enrichment system. (iv) Fuel Tank. (2) Air Induction System (i) Controlled hot air intake system. (ii) Intake manifold. (iii) Air filter. (3) Ignition System (i) Spark Plugs. (ii) Magneto or electronic ignition system. (iii) Spark advance/retard system. (4) Exhaust Gas Recirculation (EGR) System (i) EGR valve...
..., filters, precipitators, and any warranty maintenance or repairs on your product: (1) Fuel Metering System (i) Carburetor and internal parts (and/or pressure regulator or fuel injection system). (ii) Air/fuel ratio feedback and control system. (iii) Cold start enrichment system. (iv) Fuel Tank. (2) Air Induction System (i) Controlled hot air intake system. (ii) Intake manifold. (iii) Air filter. (3) Ignition System (i) Spark Plugs. (ii) Magneto or electronic ignition system. (iii) Spark advance/retard system. (4) Exhaust Gas Recirculation (EGR) System (i) EGR valve...
Repair Sheet
Page 3
Ryobi 30cc String Trimmers Model Numbers - RY34420, RY34440 PARTS LIST (FIGURE A) KEY PART NO. Key No. 28 1 Warning Label 1 Logo Label 1 C430 Label (RY34420 1 S430 Label (RY34440 1 O-Ring 1 Operator's Manual (960646002 1 3 Key No. 26 1 Oil Cap/Dipstick (Incl. Key No. 31 1 Spark Plug (Champion RZ7C 1 Screw (#8-16 x 5/16 in 1 Bolt (M6 x 1 x 30 mm 1 Screw (M5 x .8 in 1 19 518949001 20 518142002 21 518696002 22 690694002 23 518366001 24...
Ryobi 30cc String Trimmers Model Numbers - RY34420, RY34440 PARTS LIST (FIGURE A) KEY PART NO. Key No. 28 1 Warning Label 1 Logo Label 1 C430 Label (RY34420 1 S430 Label (RY34440 1 O-Ring 1 Operator's Manual (960646002 1 3 Key No. 26 1 Oil Cap/Dipstick (Incl. Key No. 31 1 Spark Plug (Champion RZ7C 1 Screw (#8-16 x 5/16 in 1 Bolt (M6 x 1 x 30 mm 1 Screw (M5 x .8 in 1 19 518949001 20 518142002 21 518696002 22 690694002 23 518366001 24...
Repair Sheet
Page 5
... 1 Breather Fitting 1 Screw (M4 x 12 mm 3 Muffler Housing 1 Muffler Gasket 1 Muffler Assembly 1 Muffler Bolt (M5 x 42 mm 2 Electrical Lead Wire Assembly 1 Ignition Module 1 Screw (M4 x 19 mm 2 5 NUMBER DESCRIPTION QTY Starter Grip 1 Starter Rope 1 Screw (M4 x 18 mm 7 Screw (M4 x 16 mm 4 Starter Housing Assembly 1 Clutch Assembly 1 Washer 1 Starter Baffle 1 Spring & Container 1 Easy Starter Assembly 1 Air Dam 1 Pulley Retainer 3 Spacer Tube 1 Washer 1 Flywheel Assembly 1 Short Block Assembly 1 Washer 3 Screw (M4 3 Fuel Tank & Cap Assembly (Incl. KEY PART NO.
... 1 Breather Fitting 1 Screw (M4 x 12 mm 3 Muffler Housing 1 Muffler Gasket 1 Muffler Assembly 1 Muffler Bolt (M5 x 42 mm 2 Electrical Lead Wire Assembly 1 Ignition Module 1 Screw (M4 x 19 mm 2 5 NUMBER DESCRIPTION QTY Starter Grip 1 Starter Rope 1 Screw (M4 x 18 mm 7 Screw (M4 x 16 mm 4 Starter Housing Assembly 1 Clutch Assembly 1 Washer 1 Starter Baffle 1 Spring & Container 1 Easy Starter Assembly 1 Air Dam 1 Pulley Retainer 3 Spacer Tube 1 Washer 1 Flywheel Assembly 1 Short Block Assembly 1 Washer 3 Screw (M4 3 Fuel Tank & Cap Assembly (Incl. KEY PART NO.
Repair Sheet
Page 6
... Label 1 Warning Decal 1 Straight Shaft Assembly 1 Screw (10-24 x 5/8 in 1 Clamp 1 Spacer 1 Screw (1/4-20 x 1-1/4 in 1 Gear Head 1 Flanged Washer 1 Arbor 1 Wing Screw (1/4-20 x 1-1/4 in 1 Grass Deflector Assembly 1 Pro Cut II String Head 1 Spool Retainer (Red 1 Pro Cut II String Head Assembly 1 Housing 1 Spring 1 Spool 1 Bolt (5/16-18 x 1/2 in 1 13 518803001 Knob 1 14 518804001 Cover 1 15 120950010 Reel Easy String Head Assembly 1 Key Service No. Figure C Model RY34420 1 2 3 4 15 5 Ryobi 30cc String Trimmers Model Numbers - RY34420, RY34440 Figure...
... Label 1 Warning Decal 1 Straight Shaft Assembly 1 Screw (10-24 x 5/8 in 1 Clamp 1 Spacer 1 Screw (1/4-20 x 1-1/4 in 1 Gear Head 1 Flanged Washer 1 Arbor 1 Wing Screw (1/4-20 x 1-1/4 in 1 Grass Deflector Assembly 1 Pro Cut II String Head 1 Spool Retainer (Red 1 Pro Cut II String Head Assembly 1 Housing 1 Spring 1 Spool 1 Bolt (5/16-18 x 1/2 in 1 13 518803001 Knob 1 14 518804001 Cover 1 15 120950010 Reel Easy String Head Assembly 1 Key Service No. Figure C Model RY34420 1 2 3 4 15 5 Ryobi 30cc String Trimmers Model Numbers - RY34420, RY34440 Figure...
Replacement Parts List
Page 3
... 1 26 940734040 Starting Label 1 27 120950028 Upper Boom Assembly (Incl. Key No. 26 1 10 310302001 Oil Cap/Dipstick (Incl. Number Description Qty. 1 660563002 Screw (M4 x 20 mm 4 2 120950026 Control Handle Assembly 1 3 518695002 Trigger Lock 1 4 638431001 Strap Hanger 1 5 760700002 Switch (Momentary Contact 1 6 570234002 Rear Handle 1 7 678029002 Hex Nut (M6.3 x 1 1 8 310586001 Fuel Cap Assembly 1 9 120950027 Air Box Cover (Incl. RY34420, RY34440 Figure A Parts List Key Part No. Ryobi 30cc String Trimmers Model Numbers -
... 1 26 940734040 Starting Label 1 27 120950028 Upper Boom Assembly (Incl. Key No. 26 1 10 310302001 Oil Cap/Dipstick (Incl. Number Description Qty. 1 660563002 Screw (M4 x 20 mm 4 2 120950026 Control Handle Assembly 1 3 518695002 Trigger Lock 1 4 638431001 Strap Hanger 1 5 760700002 Switch (Momentary Contact 1 6 570234002 Rear Handle 1 7 678029002 Hex Nut (M6.3 x 1 1 8 310586001 Fuel Cap Assembly 1 9 120950027 Air Box Cover (Incl. RY34420, RY34440 Figure A Parts List Key Part No. Ryobi 30cc String Trimmers Model Numbers -
Replacement Parts List
Page 4
...1 Clamp 1 Spacer 1 Screw (1/4-20 x 1-1/4 in 1 Gear Head 1 Flanged Washer 1 Arbor 1 Wing Screw (1/4-20 x 1-1/4 in . Expand-it Label 1 Warning Decal 1 Curved Shaft Assembly 1 Fastener Kit 1 Grass Deflector 1 Spool Retainer (Black 1 Pro Cut II String Head 1 Pro Cut II String Head Assembly 1 Housing (Incl. Key No. 21 1 Spring 1 Spool 1 Bolt (5/16-18 x 1/2 in 1 Grass Deflector Assembly 1 Pro Cut II String Head 1 Spool Retainer (Red 1 Pro Cut II String Head Assembly 1 Housing (Incl. LH 1 Knob 1 Cover 1 Reel Easy String Head Assembly 1 Hanger Cap 1 4 Number 1 940627024...
...1 Clamp 1 Spacer 1 Screw (1/4-20 x 1-1/4 in 1 Gear Head 1 Flanged Washer 1 Arbor 1 Wing Screw (1/4-20 x 1-1/4 in . Expand-it Label 1 Warning Decal 1 Curved Shaft Assembly 1 Fastener Kit 1 Grass Deflector 1 Spool Retainer (Black 1 Pro Cut II String Head 1 Pro Cut II String Head Assembly 1 Housing (Incl. Key No. 21 1 Spring 1 Spool 1 Bolt (5/16-18 x 1/2 in 1 Grass Deflector Assembly 1 Pro Cut II String Head 1 Spool Retainer (Red 1 Pro Cut II String Head Assembly 1 Housing (Incl. LH 1 Knob 1 Cover 1 Reel Easy String Head Assembly 1 Hanger Cap 1 4 Number 1 940627024...