Troy-Bilt TB475SS Operator's Manual page 95

MODEL TB490BC
4-CYCLE GAS TRIMMER
Item Part No. Description
1 791-00040 Throttle Housing Assembly (includes 2-4)
2 791-00041 Throttle Trigger Lock-Out
3 791-00042 Throttle Trigger
4 791-182690 Throttle Trigger Spring
5 791-182405 Switch
6 791-610327 Harness Clip
7 753-04503 Upper Drive Shaft Housing Assembly
8 791-181099 J-Handle Assembly
9 791-683295 Handle Bracket Assembly (includes 10-15)
10 791-181811 Screw
11 791-181812 Upper Handle Clamp
12 791-181813 Middle Handle Clamp
13 791-181814 Lower Handle Clamp
14 791-181815 Nut
15 791-145569 Anti-Rotation Screw
16 753-1190 Split Boom Coupler (includes 17-20)
17 791-182057 Screw
18 791-181617 Bolt
19 791-181981 Adjustment Knob
20 753-04386 Knob Retaining Nut
21 791-182541 Lower Drive Shaft Housing Assembly
22 791-613300 Lower Flexible Drive Shaft
23 791-182200 Shield Mount Screw Assembly
24 791-182193 2 piece Gearbox Assembly (includes 25-35)
25 791-182195 Gearbox Mounting Hardware
26 791-145569 Anti-Rotation Screw
27 791-182192 Right Housing
28 791-182191 Left Housing
29 791-182194 Pinion Gear Assembly
30 791-182199 Output Shaft Bushing
31 791-182198 Output Shaft Gear
32 791-182197 Output Shaft Assembly (includes 30 & 31)
33 791-182196 Blade Driver
34 753-04348 Palnut
35 791-147490 Retaining Washer
36 791-147492 Blade Shield/Shield Mount
37 791-683304 Shield Mounting Screw
38 753-1191 Shield Assembly (includes 39)
39 791-682061 Blade Assembly
40 791-612483 Spool Shaft
41 791-683301 Outer Spool Assembly (includes 42)
42 791-612026 Retainer
43 791-610636B Spring
44 791-147495 Inner Reel
45 791-180814B Bump Head Knob Assembly
46 791-145873B 4-Tooth Blade
48 791-181699 Nut
* 791-180014B Blade Retaining Kit (includes 34 & 43)
* 791-613226 Locking Rod Tool
* 791-682075B Shoulder Harness
* Items Not Shown
TB490BC PARTS LIST
5
1
6
3 4
2
7
1
10
11
12
13
14
15
20
39
38
39
46
35
48
30
29
8
25
26
9
27
34
17
18
19
26
16
21
23
22
37
25
26
35
31
25
28
32
33
24
29
23
40
41
42
43
44
45
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