Table of Contents
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Models 643 & 663
Ref.
Part No.
No.
1.
712-0116
2.
756-0178
3.
784-5632B
4.
710-0459A
5.
738-0281
6.
736-0167
7.
732-0611
8.
712-3068
9.
710-0276
10.
736-0119
11.
05931A
12.
741-0309
13.
710-0451
14.
705-5226
15.
684-0041D
16.
712-3010
17.
712-0429
18.
736-0242
19.
736-0231
24.
784-5618
26.
710-0604A
27.
736-0169
28.
712-0798
29.
741-0245
30.
784-5580
Part Description
Lock Jam Nut 3/8-24
Flat Idler
Auger Idler Arm
Hex Cap Screw 3/8-24 x 1.50
Shoulder Screw
Wave Washer
Extension Spring
Hex Nut 5/16-18
Carriage Bolt, 5/16-18 x 1.00
Lock Washer 5/16
Bearing Housing
Ball Bearing
Carriage Bolt, 5/16-18 x .75
Chute Reinforcement
28" Housing Ass'y
Hex Nut 5/16-18
Lock Nut 5/16-18
Belleville Washer
Flat Wshr, .344ID x 1.125 OD
Bearing Housing
Hex Screw 5/16-18
Lock Washer 3/8
Hex Nut 3/8-16
Hex Flange Bearing
Slide Shoe
Ref.
Part No.
No.
784-5038B
31.
736-0242
32.
712-3010
33.
784-5582A
34.
710-0260
35.
684-0065
36.
715-0114
37.
618-0122A
38.
605-5196A
39.
736-0188
40.
741-0493A
41.
605-5197A
42.
710-0890A
43.
714-0104
44.
736-0185
47.
705-5204A
48.
720-0201A
49.
726-0100
50.
712-3068
51.
731-2643
52.
731-2635
777I20711
777I20722
777S30514
777S30511
21
Part Description
Skid Shoe (If Equipped)
Bell Washer
Hex Nut 5/16-18
Shave Plate
Carriage Bolt 5/16-18 x .62
Impeller Assembly
Pin
28" Gear Ass'y
28" Spiral RH
Flat Washer
Flange Bushing
28" Spiral LH
Shear Bolt 5/16-18 x 1.5
Hairpin Clip
Flat Washer
Chute Crank
Chute Crank Knob
Push Cap
Hex Nut 5/16-18
Clean-Out Tool
Clean-Out Tool Mount
Label: Handle Panel (L)
Label: Handle Panel (R)
Label: Housing Danger
Label: Chute Danger
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