Page 1
REPAIR SHEET
BRAND
DESCRIPTION
RYOBI
MODEL NO.
RY40509
MFG. NO.
107895001
40 Volt 12 in. Brushless Chainsaw
TTI OUTDOOR POWER EQUIPMENT, INC.
P.O. Box 1288, Anderson, SC 29622 1-800-525-2579 www.ryobitools.com 12-8-21 (Rev:01)
The model number and manufacturing location will be found on a label attached to the product. Always mention this information in all communications regarding this product and when ordering parts.
Page 2
RY40509
43
31
6
30
16
29
44
4
41
15
48
7
15
38
46
47
5
14
2
13
22
11
3
19
1
21
49
24
25
23
27
28
42
45
8
38
36
37
12
13
9
10
35
39
33
17
32
34
13
20
40
18
5
26
2
Page 3
RY40509
PARTS LIST
KEY NO. PART NO. DESCRIPTION QTY.
1 309516004 Oil Pump Assembly 1
2 682456002 12 in. Bar 1
3 678928001 12 in. Chain 1
4 760652002 Variable Switch 1
5 205697001 Housing Assembly (Inc. Key Nos. 44 & 46-47) 1
6 205698001 Front Guard Assembly (Inc. Key No. 43) 1
7 544797001 Front Handle 1
8 544798001 Brake Mechanism Cover 1
9 544799001 Trigger 1
10 544800001 Motor Volute 1
11 580968001 Scabbard 1
12 318415001 Oil Tank Assembly 1
13 660608001 Screw (M4 x 12 mm, T20 Torx Pan Hd.) 6
14 205699001 Oil Tank Cap Assembly 1
15 662053002 Screw (#10-14 x 25 mm, T25 Torx Pan Hd.) 2
16 205700001 Motor Controller, Switch, and Battery Connector Assembly 1
17 742807001 Motor 1
18 662052002 Screw (M5 x 12 mm, T25 Torx Pan Hd.) 3
19 537485001 Oil Pump Drive 1
20 658198001 Flat Washer 1
21 565069001 Oil Tube Outlet 1
22 205298001 Brake Band Assembly 1
23 678061001 Spring 1
24 612309002 Sprocket w/Clutch Drum 1
25 635367001 Cap Washer 1
26 636159001 E-Ring 1
KEY NO. PART NO. DESCRIPTION QTY.
27 205299001 Chain Brake Assembly 1
28 678602001 Bushing 1
29 638988001 Washer 1
30 670682002 Nut 1
31 662113001 Screw (#10-14 x 0.559 mm, Double Thread T25 Torx Pan Hd.) 1
32 544847002 Trigger Lock-Out 1
33 694143001 Spring 2
34 612330001 Wrench 1
35 699850001 Hook Spring 1
36 205701001 Sprocket Cover and Chain Tension Assembly 1
37 678339003 Nut 1
38 662028001 Screw (M4 x 15.5 mm, T15 Torx Pan Hd.) 19
39 695984002 Metal Loop Spring 1
40 900876003 Terminal Block 3
41 318540001 Carry Case 1
42 674347001 Guide Bar Plate 1
43 941588994 Icons Label 1
44 941588995 Warning Danger Label 1
45 662083001 Screw (M4 x 12 mm, T20 Torx Pan Hd.) 1
46 941588997 Data Label 1
47 941588998 QR Label 1
48 661817001 Screw (M4 x 13.5 mm, T15 Torx Pan Hd.) 1
49 694415001 Spring 1
Not Shown:
998000684 Operator’s Manual
3
Page 4
BLACK
RY40509
BATTERY CONNECTOR
RED
YELLOW
BLUE
BRAKE
SWITCH
VARIABLE
SIGNAL SWITCH
MOTOR
YELLOW
MOTOR
CONTROLLER
RED
BLUE
BLACK
BLACK
WIRING DIAGRAM
4
BLUE
BLACK
RED
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