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Model 8720/8865 -31-
KEY PART NO. DESCRIPTION QTY
1 925-3720 Tightener Arm Assembly, Spinner Drive 1
2 933-3804 Eyebolt, 5/16 x 5" / 4" Thread Length 1
3 914-3602 1-1/2" 4-Bolt Bearing (Prior to serial #SI088720425) 3
914-3819 1-3/4" 4-Bolt Bearing (Serial #SI088720426 & Later) 3
4 929-0003 Extension Spring 1
5 910-0092 80B15 Sprocket Side Shaft to Spinner Drive (Clamp Style) 1
6 923-3754 Front Side Shaft 121-3/4" Long 1
7 914-3814 2-Bolt, 1-1/2" Bearing 1
8 912-0013 2" Nylon Roller Complete 1
8A 912-0013-1 2" Nylon Roller Only 1
8B 912-0013-2 Inner Sleeve 1
9 808-.75-1.25-14 3/4" I.D. x 1-1/4" O.D. x 14Ga. Machine Bushing 4
10 851-7510-3Z 3/4-10 x 3" Machine Bolt Zinc 1
11 910-3755 Reduction Sprocket Weldment-Nonshear 1
12 925-3777-1 Tightener Extension Arm 1
13 14-0031 2" Bearing 4-Bolt 3
14 925-3779-1 3/4-10 x 3" Machine Bolt-Special 1
15 933-3640 Grease Line, Rear 1st Reduction 21" 1
16 808-1.5-2.25-10 12-Machine Bushings (10 - For Split Sprocket) (Prior to serial
#SI088720425)
AR
808-1.75-2.5-10 12-Machine Bushings (10 - For Split Sprocket)(Serial #SI088720426 &
Later)
AR
17 910-0089 80B20 1-1/2" Bore Solid Sprocket (Prior to serial #SI088720425) 1
910-0120 80B20 1-3/4" Bore Solid Sprocket (Serial #SI088720426 & Later) 1
18 925-3601 Front Bearing Plate 1
19 923-3755 PTO Splined Shaft 1-1/2x42-3/4" (Prior to serial #SI078720427) 1
923-3755-S PTO Splined Shaft 1-1/2x34-3/4" (Serial #SI078720427-SI088720425) 1
923-3757 PTO Splined Shaft 1-3/4x34-3/4" (Serial #SI088720426 & Later) 1
20 911-0069 #80-119 Roller Chain 1
21 911-0054 #80-94 Roller Chain 1000 RPM 1
21 911-0068 #80-78 Roller Chain 540 RPM 1
22 933-3631 Grease Line, Front Center Shaft Bearing 1
23 933-3646 Grease Line, Center Bearing Center Shaft, Left Side 1
24 933-3645 Grease Line, Rear Center Shaft Bearing to Right Side 1
25 925-3779 Tightener Arm Assembly 1
26 35-0010 Key, 3/8 x 1-1/2" 1
27 910-0074 80B24 Sprocket 1-1/2" Bore,11 RPM Standard (Prior to Serial
#SI088720425)
1
910-0121 80B24 Sprocket 1-3/4" Bore,11 RPM Standard (Serial #SI088720426 &
Later)
1
910-0069 80B22 Sprocket 1-1/2" Bore,10 RPM (Prior to Serial #SI088720425) 1
910-0122 80B22 Sprocket 1-3/4" Bore,10 RPM (Serial #SI088720426 & Later) 1
910-0075 80B18 Sprocket 1-1/2" Bore 8.25 RPM (Prior to Serial #SI088720425) 1
910-0123 80B18 Sprocket 1-3/4" Bore 8.25 RPM (Serial #SI088720426 & Later) 1
910-0068 80B16 Sprocket 1-1/2" Bore 7.30 RPM (Prior to Serial #SI088720425) 1
910-0124 80B16 Sprocket 1-3/4" Bore 7.30 RPM (Serial #SI088720426 & Later) 1
28 808-1.5-2.25-10 9-Machine Bushings (6-For Split Sprocket)(Prior to serial #SI088720425) AR
808-1.75-2.5-10 9-Machine Bushings (6-For Split Sprocket)(Serial #SI088720426 & Later) AR
29 935-0001 Key, 3/8 x 2", Hardened 1
30 901-3751-30 Rear Bearing Vertical Back Plate Welded Assy. (Serial #SI078720427 &
Later) (Bolt On Plate Only)
1
31 925-3822-6 2-Chain Link For Tightener 1
FIRST REDUCTION & SPINNER DRIVE