ILLUSTRATED PARTS BREAKDOWN
McCULLOCH
6.0 HORSEPOWER
21" REAR-DISCHARGE LAWN MOWER
MODEL NUMBER BRO3 (MC6TY21RA)
964 77 20-02
189777 Rev. 2 04.13.04 BY/rad/BY
ROTARY LAWN MOWER - - MODEL NUMBER BRO3 (MC6TY21RA) PRODUCT NUMBER 964 77 20-02
2
25 532 15 04-06 Hex Head Thread Rolling Screw 3/8-16 x 1-1/8
KEY PART
NO. NO. DESCRIPTION
26 532 08 39-23 Hex Flange Nut
27 532 18 04-06 Wheel
28 532 18 76-64 Shoulder Bolt 5/16-18 x .33
30 532 19 01-55 Axle Arm Assembly, RR
31 532 17 01-34 Selector Knob
32 532 19 01-57 Selector Spring
33 532 17 62-35 Nut, Hex 5/16-18
34 532 19 01-56 Axle Arm Assembly, LR
36 532 18 41-93 Bolt
38 819 17 61-85 Washer
43 532 17 50-83 Bottom Belt Cover
44 532 18 97-80 Lawn Mower Housing
45 532 18 21-66 Danger Decal
46 532 18 46-32 Blade Adapter
47 532 17 50-52 Blade 21"
48 532 85 10-74 Hardened Washer
49 532 85 02-63 Helical Washer 3/8-24 x 1-3/8 Grade 8
50 532 85 10-84 Hex Head Machine Screw 3/8-24 x 1-3/8 Grade 8
89 532 19 05-52 Throttle Control
(Includes Key Numbers 10, 11, 12 and 45)
90 532 18 33-65 Screw
- - 532 18 97-76 Operator’s Manual, European
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
1 532 19 25-17 Upper Handle
2 532 15 36-05 Lower Handle
3 532 14 67-71 Control Bar
KEY PART
ROTARY LAWN MOWER - - MODEL NUMBER BRO3 (MC6TY21RA) PRODUCT NUMBER 964 77 20-02
NO. NO. DESCRIPTION
4 532 13 08-61 Engine Zone Control Cable
5 532 13 19-59 Handle Bolt
6 532 13 63-76 Handle Knob
7 532 05 17-93 Hairpin Cotter
8 532 06 64-26 Wire Tie
9 532 18 04-79 Rear Door Kit (Includes Key #16 and 17)
10 532 12 84-15 Pop Rivet
3
11 532 18 25-38 Support Bracket, LH
12 532 18 25-39 Support Bracket, RH
13 817 06 04-10 Screw 1/4-20 x 5/8
14 532 19 01-54 Handle Bracket Assembly, LH
15 532 19 01-53 Handle Bracket Assembly, RH
16 532 18 00-71 Spring, LH
17 532 18 00-72 Spring, RH
18 532 13 20-04 Keps Locknut 1/4-20
19 532 17 95-85 Rope Guide
20 532 17 92-05 Foot Guard, C.E.
21 532 05 45-83 Screw, Tapping 1/4-20 x 1/2
22 532 18 49-41 Engine Pulley
23 532 18 77-23 Hi-Pro Key
24 - - - Engine, Tecumseh, Model No. LV195EA
(Order parts from engine manufacturer)
ROTARY LAWN MOWER - - MODEL NUMBER BRO3 (MC6TY21RA) PRODUCT NUMBER 964 77 20-02
4
31 532 13 20-10 Hex Flange Nut
KEY PART
NO. NO. DESCRIPTION
32 532 18 94-07 Drive Pulley
35 532 15 20-18 Kit, Wheel Adjuster, LH
(Includes Knob and Bearing)
36 532 18 01-84 Gearcase Assembly (See Breakdown)
37 532 13 70-90 Spring
38 873 80 04-00 Locknut 1/4-20
41 532 15 20-19 Kit, Wheel Adjuster, RH
54 532 18 97-81 Grassbag Assembly
(Includes Knob and Bearing)
55 532 17 57-39 Driveshaft Cover
57 532 18 88-15 Frame, Grassbag
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
KEY PART
NO. NO. DESCRIPTION
ROTARY LAWN MOWER - - MODEL NUMBER BRO3 (MC6TY21RA) PRODUCT NUMBER 964 77 20-02
1 532 18 45-87 Control Cable Assembly
2 532 16 73-87 Bearing, Wheel Adjuster
3 532 19 17-30 Nut, Hex, Flanged 1/4-20
4 532 15 87-55 Hex Washer Head Screw 1/4-20 x 2.12
5 532 17 54-36 V-Belt
6 532 15 04-95 Spring Retainer
5
9 532 14 52-12 Locknut
11 532 18 07-66 Wheel & Tire Assembly
12 812 00 00-58 E-Ring
13 532 13 70-54 Pinion
14 532 18 05-04 Dust Cover
16 532 06 77-25 Washer 1/2 x 1-1/2 x .134
18 532 17 01-43 Selector Knob
26 532 17 52-62 Pan Head Tapping Screw #10-24 x 2-3/4
28 532 18 03-29 Drive Cover
ROTARY LAWN MOWER - - MODEL NUMBER BRO3 (MC6TY21RA)
PRODUCT NUMBER 964 77 20-02
GEARCASE ASSEMBLY - PART NUMBER 532 18 01-84
KEY PART
NO. NO. DESCRIPTION
1 532 18 34-97 Case, Lower
2 532 18 34-98 Case, Upper
3 532 18 34-99 Gear, 27 Teeth
4 532 18 35-00 Lever, Clutch
5 532 18 35-01 Spring, Return
6 532 18 35-02 Shaft, Input
7 532 18 35-03 Dog, Movable
8 532 18 35-04 Dog, Fixed
9 532 18 35-05 Wire, Formed
10 532 18 35-06 Bearing, Ball
11 532 18 35-07 Fork, Shift
12 532 18 35-08 Seal, Output Shaft
13 532 18 35-09 Washer
14 532 18 35-10 Seal, Case
15 532 18 35-11 Bushing
16 532 18 35-12 Shaft, Output
17 532 18 35-13 Screw
18 532 18 35-14 Seal, Input Shaft
- - 532 18 34-04 Kit, Gearcase Replacement
NOTE: Use Dow Corning #709 to reseal Gear Case Halves.
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm
6
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