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The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your
Belt Sander or when ordering repair parts.
PARTS LIST
Key
No.
Description
Quan.
Key
No.
Description
Quan.
1
Screw (#8-32 x 3/8 in. Pan Hd. T. F.) .................................. 4
2
Belt Cover ............................................................................ 1
3
Driven Pulley ........................................................................ 1
4
Timing Belt ........................................................................... 1
5
Gear Housing Cover w/Bearing ........................................... 1
6
Washer ................................................................................. 2
7
Pinion ................................................................................... 1
8
Flange Bearing ..................................................................... 1
9
Screw (#8-32 x 7/8 in. Fil. Hd.) ............................................ 1
10
Motor Housing ...................................................................... 1
11
Insulator ............................................................................... 2
12
Brush Tube Assembly .......................................................... 2
13
Pulley ................................................................................... 1
14
Bearing Strap ....................................................................... 2
15
Screw (#8-10 x 1/2 in. Fil. Hd.) ............................................ 6
16
Cord ..................................................................................... 1
17
Bend Relief .......................................................................... 1
18
Screw (#6-19 x 5/8 in. Pan Hd.) .......................................... 2
19
Bumper ................................................................................. 2
20
Motor Housing Cover ........................................................... 1
21
Switch ................................................................................... 1
22
Handle Cover ....................................................................... 1
23
Field Strap ............................................................................ 1
24
Ball Bearing (NACHI 608ZZ C3/1E) .................................... 2
25
Field Assembly ..................................................................... 1
26
Data Plate ............................................................................ 1
27
Armature (Includes Key Nos. 24 and 72) ............................ 1
28
Screw (#8-10 x 5/8 in. Pan Hd.) .......................................... 7
29
Blower .................................................................................. 1
30
Screw (#10-32 x 3/8 in. Wafer Hd.) ..................................... 1
31
Retaining Ring ..................................................................... 2
32
Spring ................................................................................... 1
33
Shroud .................................................................................. 1
34
Blower Housing .................................................................... 1
35
Blower Cover ....................................................................... 1
36
Screw (#8-10 x 1-1/8 in. Fil. Hd.) ......................................... 3
37
Idler Roller w/Bearings ......................................................... 1
38
Logo Plate ............................................................................ 1
39
Idler Roller Shaft .................................................................. 1
40
Yoke Assembly (Includes Key No. 32) ................................ 1
41
Release Lever Assembly ..................................................... 1
42
Washer ................................................................................. 1
43
Screw (#10-32 x 1/2 in. Pan Hd.) ........................................ 1
44
75 mm x 534 mm Sanding Belt — Complete Assortment
Available at Your Nearest Catalog Order or Retail Store .... 1
45
Glamor Plate ........................................................................ 1
46
Screw (#10-32 x 7/8 in. Pan Hd. T. F.) ................................ 2
47
Bushing ................................................................................ 2
48
Torsion Spring ...................................................................... 1
49
Tracking Knob ...................................................................... 1
50
Spring ................................................................................... 1
51
Washer ................................................................................. 1
52
Gear Housing w/Bearings
(Includes. Key Nos. 8, 59, 60 and 63) ................................. 1
53
Platen ................................................................................... 1
54
Wear Strip ............................................................................ 1
55
Backing Pad ......................................................................... 1
56
Wear Plate ........................................................................... 1
57
Drive Roller Assembly ......................................................... 1
58
Steel Ball .............................................................................. 1
59
Felt Seal ............................................................................... 1
60
Bearing ................................................................................. 1
61
Screw (#8-10 x 2-1/4 in. Fil. Hd.) ......................................... 4
62
Deflector ............................................................................... 1
63
Flange Bearing ..................................................................... 1
64
Washer ................................................................................. 1
65
Gear ..................................................................................... 1
66
Spring Washer (Assemble Flat Side to Gear) ..................... 1
67
Washer ................................................................................. 1
68
Thrust Washer ..................................................................... 1
69
Screw (#8-32 x 3/8 in. Pan Hd.) .......................................... 3
70
Dust Bag Assembly .............................................................. 1
71
Cord Clamp .......................................................................... 1
72
Washer ................................................................................. 1
73
Yellow Lead ......................................................................... 1
74
Suppressor ........................................................................... 1
75
Connector ............................................................................ 1
Owner’s Manual
RYOBI DUSTLESS BELT SANDER - MODEL NUMBER B850
WARNING: IMPROPER REPAIR OF A DOUBLE INSULATED TOOL CAN RESULT IN DAMAGES TO THE DOUBLE INSULATION SYSTEM
POSSIBLY CAUSING ELECTRICAL SHOCK OR ELECTROCUTION. ANY REPAIRS REQUIRING DISASSEMBLY OF YOUR TOOL REQUIRES
SAFETY TESTING AND SHOULD ONLY BE PERFORMED BY AN AUTHORIZED SERVICE CENTER OR OTHER QUALIFIED SERVICE
ORGANIZATION.
