Ryobi RY28100 Quick setup guide

RYOBI
26cc STRING TRIMMERS
MODEL NUMBERS
RY28100, RY28120 and RY28140
(ALL VERSIONS)
REPAIR SHEET

2
Ryobi 26cc StRing tRimmeRS
model numbeRS – Ry28100, Ry28120 & Ry28140
FIGURE A
1
2
3
14
4
13
16
15
19
20
31
17
18
5
6
7
10
30
27
12
22
23
8
2
21
9
11
26
29
25
28
SEE FIGURE B
24

3
Ryobi 26cc StRing tRimmeRS
model numbeRS – Ry28100, Ry28120 & Ry28140
18 678008001 Washer .................................................................. 1
19 518949001 Wing Nut ............................................................... 1
20 518696001 Throttle Trigger...................................................... 1
21 308842004 Throttle and Lead Assembly ................................. 1
22 660925011 Screw (M4 x 8 mm, Torx T.F.)............................... 1
23 678029002 Hex Nut (M6) ......................................................... 1
24 690694002 Throttle Spring ...................................................... 1
25 940654088 Combustion Warning Label................................... 1
26 940705011 Logo Label ............................................................ 1
27 941788001 Primer Label .......................................................... 1
28 900952011 Air Filter ................................................................. 1
29 940216004 Start Run Label ..................................................... 1
30 941790001 Fuel Tank Warning Label ....................................... 1
31 308045006 Boom Clamp ......................................................... 1
Not Shown:
990000224 Operator’s Manual (RY28100)............................... 1
990000227 Operator’s Manual (RY28120 and RY28140) ........ 1
2-5-13
(Rev:01)
1 660563002 Screw (M4 x 20 mm) ............................................. 4
2 308869002 Control Handle Assembly ..................................... 1
3 518695001 Trigger Lock .......................................................... 1
4 638431001 Strap Hanger......................................................... 1
5 760700002 Switch (Momentary Contact) ................................ 1
6 570234002 Rear Handle .......................................................... 1
7 870174001 * Spark Plug (Champion RCJ6Y)............................. 1
8 690140011 Compression Spring ............................................. 1
9 525105002 Air Box Cover ........................................................ 1
10 310817004 Fuel Cap Assembly (1.5 in. Diameter) ................... 1
11 940734131 Label...................................................................... 1
12 660697002 Bolt (M6 x 20 mm)................................................. 1
13 308470013 Upper Boom Assembly ......................................... 1
14 940657034 Warning Decal....................................................... 1
15 308991001 Front Handle Assembly (Inc. Key Nos. 16-19) ...... 1
16 518738001 Front Handle ......................................................... 1
17 660643008 Bolt (1/4-20 x 40 mm) ........................................... 1
PARTS LIST (FIGURE A)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY
* STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY

4
Ryobi 26cc StRing tRimmeRS
model numbeRS – Ry28100, Ry28120 & Ry28140
FIGURE B
26
4
5
6
7
89
10
11
12
3
13 14
15
16
17
18
19
20
21
22
23
3
24
25
27
28
29
30
31
32
34
33
35
2
3
1
36

5
Ryobi 26cc StRing tRimmeRS
model numbeRS – Ry28100, Ry28120 & Ry28140
1 525485002 Starter Grip.............................................................. 1
2 900849012 Starter Rope............................................................ 1
3 660466001 Screw (M4 x 18 mm) ............................................. 11
4 660970001 Screw (M4 x 17 mm) ............................................... 4
5 308671027 Starter Housing Assembly ...................................... 1
6 300960002 Clutch Assembly ..................................................... 1
7 638090001 Washer .................................................................... 1
8 518692001 Starter Baffle ........................................................... 1
9 638033001 Spring and Container .............................................. 1
10 310022003 Easy Starter Assembly ............................................ 1
11 638389001 Pulley Retainer ........................................................ 3
12 638284002 Spacer Tube ............................................................ 1
13 650017001 Washer .................................................................... 1
14 308811007 Flywheel Assembly.................................................. 1
15 308675051 Fuel Tank and Cap Assembly ................................. 1
16 660970002 Screw (M4) .............................................................. 3
17 660454007 Bolt (M5 x 70 mm)................................................... 2
18 525106001 Air Box Base ........................................................... 1
19 308054077 Carburetor Assembly .............................................. 1
20 901552001 Outer Heat Dam Gasket.......................................... 1
21 518685001 Air Baffle.................................................................. 1
22 518497001 Heat Dam ................................................................ 1
23 901551001 Inner Heat Dam Gasket........................................... 1
24 518504002 Rear Housing .......................................................... 1
25 308892014 Short Block Assembly (Inc. Key Nos. 26-28) .......... 1
26 660925003 Screw (M4 x 12 mm) ............................................... 6
27 638337005 Crankcase Cover..................................................... 1
28 901550001 Crankcase Cover Gasket ........................................ 1
29 901452001 Muffler Gasket......................................................... 1
30 308990011 Muffler Assembly..................................................... 1
31 638442001 Muffler Housing....................................................... 1
32 660638003 Muffler Bolt (10-24 x 2-1/8 in.) ................................ 2
33 308863024 Electrical Lead Wire Assembly................................ 1
34 850108031 Ignition Module ....................................................... 1
35 660968001 Screw (M4 x 19 mm) ............................................... 2
36 310976001 Fuel Filter................................................................. 1
PARTS LIST (FIGURE B)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY

6
Ryobi 26cc StRing tRimmeRS
model numbeRS – Ry28100, Ry28120 & Ry28140
17
16
15
14
13
10
9
8
11 12
6
4
7
3
2
1
5
Key Service
No. Number Description Qty.
Key Service
No. Number Description Qty.
1 940726013 Logo Label...................................................................................1
2 940657032 Warning Label..............................................................................1
3 308038010 Curved Shaft Assembly...............................................................1
4 120642001 Washer and Bolt Assembly .........................................................1
5 308052001 Curved Shaft Grass Deflector......................................................1
6 310643003 String Head Housing ...................................................................1
7 679958001 Spring ..........................................................................................1
8 310412003 Spool ...........................................................................................1
9 308042002 Spool Retainer.............................................................................1
10 309562005 String Head Assembly (Inc. Key Nos. 6-8) ..................................1
11 518019002 Hanger Cap .................................................................................1
FIGURE C
MODEL
RY28140
1 940726013 Logo Label................................................................................... 1
2 940657032 Warning Label.............................................................................. 1
3 308035038 Straight Shaft Assembly .............................................................. 1
4 660641001 Screw (10-24 x 5/8 in.) ................................................................ 1
5 518019002 Hanger Cap ................................................................................. 1
6 518367001 Spacer ......................................................................................... 1
7 660642001 Screw (1/4-20 x 1-1/4 in.)............................................................ 1
8 308210009 Gear Head ................................................................................... 1
9 678011002 Washer......................................................................................... 1
10 678019002 Arbor............................................................................................ 1
11 660886001 Wing Screw (1/4-20 x 1-1/4 in.)................................................... 1
12 308473001 Grass Deflector Assembly (Inc. Key No. 11) ............................... 1
13 310643003 String Head Housing ................................................................... 1
14 679958001 Spring .......................................................................................... 1
15 310412003 Spool ........................................................................................... 1
16 308042003 Spool Retainer ............................................................................. 1
17 309562005 String Head Assembly (Inc. Key Nos. 13-15) .............................. 1
10
6
7
8
9
4
5
3
2
111
FIGURE C
MODEL
RY28120