25
26
26
30
27
27
28
32
33
38
36
37
42
35
31
34
34
40
39
35
41
43
1
1
6
15
16
17
18
14
13
11
10
9
12
8
7
2
3
4
5
29
21
20
19
22
23
24
Issued 9/01
BOOM AND TRIMMER PARTS - MODEL TB90BC
2-CYCLE GAS TRIMMER/BRUSHCUTTER
PPN 41ADT90C063
Item Part
No. Description
1 182801 Throttle Housing and Trigger
Assembly (includes 2-4)
2 182802 Throttle Trigger Lock-Out
3 182803 Throttle Trigger
4 182690 Throttle Trigger Spring
5 182539 Switch Assembly (includes 6)
6 182357 Throttle Cable Assembly
7 610327 Harness Clip
8 182309 Upper Drive Shaft Housing Assembly
9 181099 J-Handle Assembly (includes 10 & 11)
10 612831 Grip
11 612021 Tube Closure
12 683295 Handle Bracket Assembly (includes 13-18)
13 181811 Screw
14 181812 Upper Handle Clamp
15 181813 Middle Handle Clamp
16 181814 Lower Handle Clamp
17 181815 Nut
18 145569 Anti-Rotation Screw
19 181616 Click-Link Coupler (includes 20-23)
20 182057 Screw
21 181617 Bolt
22 181618 Adjustment Knob
23 181886 Knob Retaining Nut
24 180804 Lower Drive Shaft Housing Assembly
25 613300 Lower Flexible Drive Shaft
26 182200 Shield Mount Screw Assembly
27 182193 2 piece Gearbox Assembly (includes 28-30)
28 182195 Gearbox Mounting Hardware
29 145569 Anti-Rotation Screw
30 182196 Blade Driver
31 147492 Blade Shield/Shield Mount
32 683304 Shield Mounting Screw
33 683299 Shield and Blade Assembly (includes 34)
34 682061 Blade Assembly
35 147490 Retaining Washer
36 612483 Spool Shaft
37 683301 Outer Spool and Eyelet Assembly
38 612026 Retainer
39 610636 Spring
40 147495 Inner Reel
41 180814 Bump Head Knob Assembly
42 145873 4-Tooth Blade
43 181699 Nut
* 180014 Blade Retaining Kit (includes 35 & 43)
* 613226 Locking Rod Tool
* 682075 Shoulder Harness
2
Piece Gearbox Assembly Parts – Item 27
44 182191 Left Housing
45 182192 Right Housing
46 182194 Pinion Gear Assembly
47 182199 Output Shaft Bushing
48 182198 Output Shaft Gear
49 182197 Output Shaft Assembly (includes 46 & 47)
Optional Accessories
* 180120 Replacement Line,
0.095 Diameter
* 147345 Reel and Line Assembly
* 147498 Bump Head Assembly
(includes 36-41)
* 147543 Ryobi 2-Cycle Oil
* Items Not Shown
47
48
44
28
45
30
29
28
46
49