Parts Manual
Walk Behind Mower
Models
Mfg. No.
7800864
Description
EM2045, 4.5GT 20" Walk Behind Mower, CE (2012)
7800888
MD20450FC, 4.5GT 20" Walk Behind Mower, CE (2012)
Manual Part No. 1754788
Revision
Rev. Date: 3/5/2012
-
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Table Of Contents
PRODUCT COMPONENTS
PAGES
Handle Assembly .................................................................................................................................................
Deck & Engine Group ..........................................................................................................................................
Decal Group .........................................................................................................................................................
4
6
8
Torque Specification Chart ..................................................................... Inside Back Cover
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Handle Assembly
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
7800711ha
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
4
1754788
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Handle Assembly
REF NO PART NO.
QTY. DESCRIPTION
1
7301150AYP
1101454E701MA
7104326AYP
1101093MA
043956MA
2
1
1
1
1
9
4
2
1
4
HANDLE
3
BRACKET, Stop Lever
LEVER, Stop
4
6
CABLE, Stop
7
GUIDE, Rope
8
1908125MA
7090947YP
7024641YP
1101352MA
1931317SM
NUT, Hex Nylock, 1/4-20
BOLT, Carriage, Short Neck, 1/4-20 x 1-3/8
WIRE TIE, 5.5"
9
10a
10b
11
CLIP, CABLE
BOLT, Carriage, Short Neck, 1/4-20 x 3/4, G5
Footnotes
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
5
1754788
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Deck & Engine Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
7800711dk
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
6
1754788
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Deck & Engine Group
REF NO PART NO.
QTY. DESCRIPTION
1
1
09T502-3121-H1
09L602-0110-F1
1
* ENGINE, 450 Series, Briggs & Stratton (Engine Model: 09T502-0121-B1) (Used on
EM2045)
1
* ENGINE, 450 Series, Briggs & Stratton (Engine Model: 09L602-0110-F1) (Used on
MD20450FC)
2
-----
1
3
4
4
4
4
2
1
1
2
2
2
1
1
1
2
1
1
4
1
HOUSING, 20"
3
7090324SM
009X10MA
7101738YP
7102068YP
17X168ZMA
26X245MA
7300714YP
671912MA
01X121MA
017X37MA
1908125MA
671929MA
071056MA
042785E701MA
17X137MA
1918266SM
01X142MA
1499MA
CAPSCREW, Hex Washer Head, Self Tap, 3/8C x 1
BOLT, Shoulder, 3/8-16 x 2
WHEEL, 6 x 1.50 (Used on EM2045)
WHEEL, 7 x 1.50 (Used On MD20450FC)
WASHER, Flat, 3/8
4
5
5
6
7
CAPSCREW, Hex Washer Head, SEMS, #10 x 1/2
EXTENSION
8
9
GUARD, Rear
10
11
13
14
15
16
17
18
19
20
21
BOLT, Hex, 1/4-20 x 3/4
WASHER, 1/4
NUT, Hex Nylock, 1/4-20
DEFLECTOR
ADAPTER, Blade
BLADE, 20"
WASHER, Blade
WASHER, 3/8
BOLT, Hex, 3/8-24 x 1-1/2
NUT, Hex Flange, Serrated, 3/8-16
WASHER, Plain, .40
17X191MA
Footnotes
Note* To verify your specific engine model, please reference the ID Tag located on your engine. See your local Briggs &
Stratton distributor for parts and service.
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
7
1754788
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Decal Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
7800864dcl
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
8
1754788
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Decal Group
REF NO PART NO.
QTY. DESCRIPTION
1
2
3
3
4
5
6
7
7029782MA
7104063YP
7102124YP
7102124YP
7101084YP
7101495YP
7103405YP
7103406YP
1
1
1
1
1
1
1
1
DECAL, OPC BAIL
DECAL, 450 Series
DECAL, Logo, Deck (Used on EM2045)
DECAL, Logo, Deck (Used on MD2045FC)
DECAL, Warning, Multi Panel (Used on EM2045)
DECAL, CPSC, FR / NG (Used on MD2045FC)
DECAL, Danger, FR / ENG (Used on MD2045FC)
DECAL, Warning, FR / ENG (Used on MD2045FC)
Footnotes
The above parts group applies to the following Mfg. Nos.:
7800864 - EM2045
7800888 - MD20450FC
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
9
1754788
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Hardware Identification & Torque Specifications
Torque Specification Chart
Torque Specification Chart
FOR STANDARD METRIC MACHINE HARDWARE (Tolerance 20%)
FOR STANDARD MACHINE HARDWARE (Tolerance 20%)
No
Marks
Property
Class
Hardware
Grade
5.6
8.8
10.9
12.9
SAE Grade 2
SAE Grade 5
in/lbs
SAE Grade 8
in/lbs
Class 5.6
Class 10.9
Class 8.8
Class 12.9
Size Of
in/lbs
Hardware ft/lbs
in/lbs
ft/lbs Nm.
in/lbs
in/lbs
ft/lbs Nm. ft/lbs
in/lbs
Nm. ft/lbs
Size Of
Hardware
Nm.
2.1
2.3
3.1
3.5
7.6
ft/lbs
Nm.
ft/lbs
Nm.
Nm.
.56
M3
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M39
13.44 1.28 19.2
30.72 2.90 43.44
60.96 5.75 5.97
1.80 22.92 2.15
4.10 52.56 4.95
9.7
8-32
8-36
19
20
27
31
66
76
11
12
20
23
30
35
50
55
65
30
31
43
49
8
10
17
19
30
35
50
55
3.4
3.5
4.9
41
43
60
4.6
4.9
6.8
5.88
1.28
13.44
26.4 2.50
8.10
14
7.15
12.1
19.9
29
10-24
10-32
1/4-20
1/4-28
5/16-18
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
4.3
7.1
10.5
21
36
16.5
27
40
44.64
5.2
7.7
15
7.3
10.3
5.5
68
7.7
9.9
12.1 16.5 16.9
23
34
67
10.9
13.6
23.1
25.8
40.8
47.6
68.0
74.8
12
16.3
25
50
17.7
35
61
24
48
8.6
14
19.0
59
81
15.0
16.3
27.2
31.3
40.8
47.6
68.0
74.8
88.4
25
34.0
83 86.2
117
185
285
390
550
745
960
103
162
250
346
486
656
140
220
340
470
660
890
29
34.0
26
101
147
202
290
390
497
733
132
136
210
287
405
559
708
45
61.2
42
58
200
275
390
530
375
50
68.0
64
88
89
121
70
95.2
126
169
217
320
435
590
759
80
108.8
149.6
163.2
204.0
231.2
299.2
326.4
525.0
571.2
816.0
897.6
171
230
295
435
590
800
75 102.0
90 122.4
110 149.6
120 163.2
150 204.0
180 244.8
260 353.6
300 408.0
400 544.0
440 598.4
580 788.8
110
120
150
170
220
240
386
420
600
660
840 1140
1239 1680
1681 2280
2278 3090
2935 3980
995 1032 1400
995 1350 1401 1900
75 102.0
90 122.4
100 136
160 217.6
180 244.8
140 190.4
155 210.8
220 299.2
240 326.4
1902 2580
2441 3310
1349 1830
1030 1740
2360
5150
3798
1340 2249 3050 3163 4290
988
The guides and ruler furnished below are designed to
help you select the appropriate hardware.
7/8-14
1-8
1-12
900 1,244.0
640 870.4 1,000 1,360.0
20
40
60
80
0
10
30
50
70
90
100
NOTES
1. These torque values are to be used for all hardware
excluding: locknuts, self-tapping screws, thread forming
screws, sheet metal screws and socket head setscrews.
Body
Diameter
Body Length
2. Recommended seating torque values for locknuts:
a. for prevailing torque locknuts - use 65% of grade 5
torques.
b. for flange whizlock nuts and screws - use 135% of
grade 5 torques.
3. Unless otherwise noted on assembly drawings, all torque
values must meet this specification.
Nut, M8
Screw, M8- 1.25 x 25
Distance between
Thread
Diameter (mm)
Thread
Body
Length (mm)
threads (mm)
Diameter (mm)
Body
Body
Length (in)
Threads
per inch
Inside Threads
Diameter (in) per inch
Diameter
Screw, 1/2- 16 x 2
Nut, 1/2-16
Common Hardware Types
3
0
1
2
4
1/2
1/2
1/2
1/2
1/4
3/4
1/4
3/4
1/4
3/4
1/4
3/4
Hex Head Capscrew
Washer
Standard Hardware Sizing
When a washer or nut is identified as 1/2” (M8), this is
Lockwasher
Carriage Bolt
the Nominal size, meaning the inside diameter is 1/2 inch
Hex Nut
(8mm metric thread diameter); if a second number is present
it represents the threads per inch (distance between threads).
Wrench & Fastener Size Guide
When bolt or capscrew is identified as 1/2 - 16 x 2” (M8 - 1.25 x 50 ),
this means the Nominal size, or body diameter is 1/2 inch (8mm
metric thread diameter), the second number,16, represents the
threads per inch, (1.25 thread diameter). The final number is the
body length of the bolt or screw, 2 inches (50mm).
1/4” Bolt or Nut
Wrench—7/16”
5/16” Bolt or Nut
Wrench—1/2”
3/8” Bolt or Nut
Wrench—9/16”
7/16” Bolt or Nut
Wrench (Bolt)—5/8”
Wrench (Nut)—11/16”
1/2” Bolt or Nut
Wrench—3/4”
M6 Bolt or Nut
Wrench—10mm
M8 Bolt or Nut
Wrench—13mm
M10 Bolt or Nut
Wrench—17mm
M14 Bolt or Nut
Wrench—22 mm
M12 Bolt or Nut
Wrench—19mm
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IT IS THE POLICY OF BRIGGS & STRATTON CORP. TO IMPROVE ITS PRODUCTS
WHENEVER IT IS POSSIBLE AND PRACTICAL TO DO SO. WE RESERVE THE RIGHT TO
MAKE CHANGES OR ADD IMPROVEMENTS AT ANY TIME WITHOUT INCURRING ANY
OBLIGATION TO MAKE SUCH CHANGES ON PRODUCTS.
Briggs & Stratton Power Products Group
12301 W. Wirth Street
Wauwatosa, WI, 53222 USA
© Copyright 2012 by Briggs & Stratton Corporation
Milwaukee, WI, USA. All rights reserved
Download from Www.Somanuals.com. All Manuals Search And Download.
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