Model 550/551 Spindle Assembly - MTD Edger 520 Operator's Manual

Model 550 And 551 Spindle Assembly
30†
31†
2
21
V-BELTS are specially designed to engage and
disengage safely. A substitute (non-OEM) V-Belt
can be dangerous by not disengaging completely.
REF. PART
NO. NO.
1 687-02019 Blade Plate Assembly
2 710-0395 Hex Screw, 5/16-18
3 710-0599 Self-tapping Screw, 1/4-20
4 710-1143A Hex Screw, 5/8-18
5 712-3004A Hex Lock Nut, 5/16-18
6 712-3027 Hex Flange Nut, 1/4-20
7 712-3056 Jam Nut, 5/8-18
8 714-3010 Cotter Pin
9 718-04012 Bearing Cup
10 731-04158 Blade Guard
11 731-04207 Bearing Block
12 732-04169 Compression Spring
13 732-0188A Double Torsion Spring
14 736-0119 Lock Washer
15 736-0187 Flat Washer
16 736-0317 Bell Washer,.63 ID x 1.2 OD
6
7
16
27
18
29
8
15
13
11
14
5
DESCRIPTION
10
17
19
9
20
17
22
1
6
24
25
12
REF. PART
NO. NO.
17 736-3090
18 737-3000
19 738-04025
20 741-0524
21 747-04110
22 736-04088
23 750-04105
24 750-0547
25 754-04032
26 756-0449
27 781-0080
28 781-0427
29 787-01081
30 736-04088†
31 781-0748†
†If so equipped
16
23
26
28
4
DESCRIPTION
Flat Washer,.260 x.72
Lube Fitting, 3/16
Pin, 1/4-20
Bearing,.625 ID x 1.57 OD
Blade Adjustment Rod
Spacer.635 ID x.88 OD
Spacer,.63 x 1.12 x 1.06
Spacer,.632 ID x.875 OD
Belt
Sheave
Blade
Spindle Belt Guard
Index Bracket
Flat Washer
Tri Star Blade
3