Ryobi RY29550 Quick setup guide

RYOBI
30cc STRING TRIMMER
MODEL NUMBER RY29550
REPAIR SHEET

2
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
FIGURE A
1
3
2
14
4
13
16
15
19
20
24
17
18
6
7
9
26 27
10
11
12
35
25
23
34
21
30
5
33
822
32
31
28
29

3
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
21 660616001 * Screw (10-24 x 7/8 in.) .......................................... 1
22 308487001 Shoulder Strap ...................................................... 1
23 678029002 * Hex Nut (M6) ......................................................... 1
24 690694002 Spring.................................................................... 1
25 660634001 * Bolt (8-16 x 5/16 in. Torx T.F.)................................ 1
26 310568001 Electrical Start Assembly ...................................... 1
27 660527001 * Screw (M5 x 14 mm) ............................................. 4
28 309800001 Power Head Assembly.......................................... 1
29 308439012 Throttle Cable........................................................ 1
30 518798001 Right Handle ......................................................... 1
31 690969001 Washer .................................................................. 1
32 660870001 Screw .................................................................... 1
33 900333010 Cable Tie ............................................................... 3
34 690140011 Spring.................................................................... 1
35 518036006 Tube....................................................................... 1
130269012 Battery Pack (Not Shown)..................................... 1
140295003 Charger (Not Shown)............................................. 1
987000310 Operator’s Manual (960703004)
8-13-08
(REV:01)
1 660563001 * Screw (M4 x 18 mm) ............................................. 6
2 518797001 Left Handle............................................................ 1
3 518695001 Trigger Lock .......................................................... 1
4 638431001 Strap Hanger......................................................... 1
5 308315001 Wire Harness......................................................... 1
6 570234003 Rear Handle .......................................................... 1
7 870174002 * Spark Plug (Champion RCJ6Y)............................. 1
8 518366001 Hanger Cap ........................................................... 1
9 518777001 Air Box Cover ........................................................1
10 300758006 Fuel Cap Assembly ............................................... 1
11 940686033 Label...................................................................... 1
12 660697002 * Bolt (M6 x 20 mm).................................................1
13 308470006 Upper Boom Assembly ......................................... 1
14 940230132 Warning Decal ....................................................... 1
15 308991001 Front Handle Assembly......................................... 1
16 518738001 Front Handle.......................................................... 1
17 660643008 * Bolt (1/4-20 x 40 mm) ........................................... 1
18 678008001 Washer .................................................................. 1
19 518949001 * Wing Nut (1/4-20).................................................. 1
20 518696001 Throttle Trigger ...................................................... 1
* STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY
PARTS LIST (FIGURE A)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY

4
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
6
5
4
7
8
11
9
12
2
1
10
14
13
3
16
17
18
19
20
21
22
15
FIGURE B

5
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
13 308925001 Pro Cut II String Head ........................................... 1
14 308042003 Spool Retainer (Red) ............................................. 1
15 120950011 Pro Cut II String Head Assembly
(Inc. Key Nos. 13-14)............................................. 1
16 308827002 Housing ................................................................. 1
17 678749001 Spring.................................................................... 1
18 308924001 Spool ..................................................................... 1
19 660649001 * Bolt (5/16-18 x 1/2 in. LH)..................................... 1
20 518803001 Knob...................................................................... 1
21 518804001 Cover..................................................................... 1
22 120950010 Reel Easy String Head Assembly
(Inc. Key Nos. 16-21)............................................. 1
1 940627024 Expand-it Label ..................................................... 1
2 940230132 Warning Decal ....................................................... 1
3 308035011 Straight Shaft Assembly........................................ 1
4 660736001 * Screw (10-24 x 5/8 in.) .......................................... 1
5 638125001 Clamp.................................................................... 1
6 518367001 Spacer................................................................... 1
7 660642001 * Screw (1/4-20 x 1-1/4 in.)......................................1
8 308210002 Gear Head ............................................................. 1
9 678011002 Flanged Washer .................................................... 1
10 678019002 Arbor ..................................................................... 1
11 660886001 * Wing Screw (1/4-20 x 1-1/4 in.) ............................ 1
12 308473001 Grass Deflector Assembly..................................... 1
PARTS LIST (FIGURE B)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY
* STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY

6
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
1
2
3
4
56
8
910
11
12 13 14
15 16
17
28 29 30
38 39
40
41
43
42
31
44
45
46
47
48
51
50
49
32 33
34 35 36
37
18
19
20
21
22
23
24
25
26
27
7
11
FIGURE C

7
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
1 660630002 * Screw (10-24 x 3/4 in.) .......................................... 3
2 661508001 * Screw (M4 x 38 mm) ............................................. 4
3 308194005 Starter Housing Assembly .................................... 1
4 300960002 Clutch Assembly ................................................... 1
5 638090001 Washer .................................................................. 1
6 518134001 Starter Retaining ................................................... 1
7 518854001 Baffle Plate............................................................ 1
8 638033001 Spring & Container................................................ 1
9 518501001 Pulley..................................................................... 1
10 638389001 Pulley Retainer ...................................................... 3
11 660466001 * Screw (M4 x 18 mm) ............................................. 6
12 638284003 Spacer................................................................... 1
13 650017001 Washer .................................................................. 1
14 308433008 Rotor Assembly..................................................... 1
15 570256001 Bumper.................................................................. 2
16 308181012 Fuel Tank & Cap Assembly ................................... 1
17 570549001 Bumper.................................................................. 1
18 678027001 * Lock Nut (10-24) ................................................... 2
19 518766001 Air Filter Base........................................................ 1
20 308054012 Carburetor Assembly ............................................ 1
21 900994004 Carburetor Gasket................................................. 1
22 590456003 Gasket................................................................... 1
23 900740003 Carburetor Gasket................................................. 1
24 660662001 * Screw (10-24 x 1 in. Pan Hd.) ............................... 2
25 518070001 Heat Dam .............................................................. 1
26 660346002 * Screw (10 x 2-1/2 in.) ............................................ 2
27 901657001 Heat Dam Gasket.................................................. 1
28 900954001 Crankcase Gasket................................................. 1
29 310564001 Starter Shaft Assembly ......................................... 1
30 690685001 Ball Bearing........................................................... 1
31 641601001 Crankcase Cover................................................... 1
32 650012001 Shaft Seal.............................................................. 1
33 650011001 Ball Bearing........................................................... 1
34 308004002 Pulley Assembly .................................................... 1
35 678339002 * Nut (M8 x 1-1/4 in.) ............................................... 1
36 660638004 * Pan Head Screw (10-24 x 3/4”)............................. 4
37 518775001 Rear Housing ........................................................ 1
38 309920001 Short Block Assembly (Inc. Key Nos. 39-43) ........ 1
39 640069002 Cylinder ................................................................. 1
40 308023005 Piston w/Rod Assembly........................................ 1
41 900953001 Cylinder Gasket..................................................... 1
42 309920002 Crankcase Assembly ............................................ 1
43 660342002 * Screw (M5 x 0.8-20 mm)....................................... 3
44 901452005 Muffler Gasket....................................................... 1
45 309316001 Muffler Assembly................................................... 1
46 638481001 Heat Shield............................................................ 1
47 660638003 * Screw (10-24 x 2-1/8 in.)....................................... 2
48 310563001 Ignition................................................................... 1
49 660660001 * Screw (M4 x 25 mm) ............................................. 2
50 518502003 Starter Grip............................................................ 1
51 900849002 Starter Rope.......................................................... 1
* STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY
PARTS LIST (FIGURE C)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY

8
RYOBI 30cc STRING TRIMMER – MODEL NUMBER RY29550
* STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY
PARTS LIST (FIGURE D)
1 561978001 Cover..................................................................... 1
2 518782001 Motor Cover .......................................................... 1
3 660526001 * Screw (M4 x 11 mm) ............................................. 2
4 641600001 Motor..................................................................... 1
5 610715001 Pinion .................................................................... 1
6 660520001 * Screw (M3 x 8 mm) ............................................... 2
7 310567001 Bracket & Shaft Assembly .................................... 1
8 678568001 Thrust Washer ....................................................... 1
9 678566001 Pulley & Gear......................................................... 1
10 678569001 Retaining Ring....................................................... 1
11 660525001 * Screw (M4 x 6 mm) ............................................... 1
12 310693001 Final Start Gear & Pawl Assembly ........................ 1
13 678592001 Bushing ................................................................. 1
14 678596001 Spacer................................................................... 1
15 518780001 Rear Cover ............................................................ 1
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY
1
2
3
456
7
89
11
12
10
13 14
15
FIGURE D