Simplicity G4050, 4,000 Watt Manual

Parts Manual
Mfg. No: 8751-2
G4050, 4,000 Watt
Copyright © Briggs & Stratton. All Rights reserved
22-Jul-2021
Table Of Contents
Model Components
Page
Electrical Schematic And Wiring Diagram Manual Start Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator No. 68372. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panel Manual Start Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sheet Metal No. 68373 - Manual Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Specification Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Electrical Schematic And Wiring Diagram Manual Start Units
Note: Unless noted otherwise, use the standard torque specifications
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Mfg. No: 8751-2
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Electrical Schematic And Wiring Diagram Manual Start Units
REF NO
PART NO
---
---------
QTY
F
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Copyright © Briggs & Stratton. All Rights reserved
DESCRIPTION
Wiring Diagram/Schematic only
WARNING - Generator Voltage Could Cause Electrical Shock or Burn Resulting
in Death Or Serious Injury. To Avoid Electrical Shock Or Burn Hazard, Please
Refer Service To Qualified Personnel.
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Generator No. 68372
Note: Unless noted otherwise, use the standard torque specifications
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Mfg. No: 8751-2
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Generator No. 68372
REF NO
PART NO
QTY
DESCRIPTION
1
2
3
4
5
6
44395H
22694
28293
59636
58885B
59606
59606A
24049
58886
58868
59625
61773
23484D
22336
22129
60220F
22097
56326
24489
60221
4
4
1
1
2
1
1
1
1
1
1
1
1
4
4
1
1
1
1
1
BOLT,
HOUSING, Receptacle (White)
RECTIFIER, Bridge
SCREW - No. 4 x 3/8"
BOLT, Rotor
BRUSH, (Red) - Positive
BRUSH - Neutral
BEARING
WASHER (Special)
FAN, Cooling
ASSEMBLY, Rotor and Fan
STATOR
BUSHING, Snap
CAPSCREW, Hex Head - 5/16"-24 x 3/4"
WASHER, Lock - 5/16"
HOUSING, Engine Adapter
WASHER, Lock - 1/4"-20
TRIM, Vinyl - 3 1/2" Long
SCREW (Crimtite) - No. 10-24 x 3/8"
WASHER, Felt
7
8
9
10
11
12
13
14
15
16
17
18
19
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Footnotes:
Cooling Fan is not available separately. Order Item 10, ROTOR AND FAN ASSEMBLY.
Copyright © Briggs & Stratton. All Rights reserved
7
22-Jul-2021
Panel Manual Start Units
Note: Unless noted otherwise, use the standard torque specifications
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Mfg. No: 8751-2
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Panel Manual Start Units
REF NO
PART NO
QTY
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
61794B
56286
61485B
22669
22668
22693
27272
25367
27368
30798
22471
22264
43482
25909
22155
36901
37807
A25383
37806
43483
1
2
1
1
1
2
1
1
1
1
4
2
1
4
4
4
1
1
1
1
PANEL
BREAKER, Circuit - 15 Ampere
HOOD, Panel
HOLDER, Fuse
FUSE - 30 Ampere
RECEPTACLE - 120 Volts AC
RETAINER, Receptacle
POST, Battery Charge (Red)
POST, Battery Charge (Black)
WASHER (Fiber)
NUT, Hex - No. 8-32
WASHER, Lock - No. 8
RECEPTACLE - 240 Volts AC, 20 Ampere
SPACER (Nylon)
WASHER, Lock - No. 6
SCREW - No. 6-32 x 3/8"
RECEPTACLE - 120 Volts, 30 Ampere
CABLE ASSEMBLY, Battery Charging
PLUG, Connector - 120 Volts AC, 30 Ampere
PLUG, Connector - 240 Volts AC, 20 Ampere
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Footnotes:
For use with Item 13 - Not Shown
For use with Item 17 - Not Shown
Not Shown
Copyright © Briggs & Stratton. All Rights reserved
9
22-Jul-2021
Sheet Metal No. 68373 - Manual Start
Note: Unless noted otherwise, use the standard torque specifications
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Mfg. No: 8751-2
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Sheet Metal No. 68373 - Manual Start
REF NO
PART NO
QTY
DESCRIPTION
1
69647
1
2
3
60706
58196
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
20
21
22
23
24
25
26
27
28
29
30
22774
59604
65115
65389
58876B
22165
22127
61771
61762
58887B
58887C
61763B
58884
50190
58894
60209
59635
56892
22129
59634
45992
36933
22152
22158
-----
1
1
1
1
1
1
6
4
1
1
1
1
1
1
2
1
1
10
10
2
1
1
1
1
A/R
31
-----
A/R
32
-----
A/R
33
-----
A/R
34
-----
A/R
35
-----
A/R
36
-----
A/R
37
38
65391
-----
1
A/R
39
-----
A/R
40
-----
A/R
41
42
44624
65164
4
1
ENGINE- 8 HP, Manual Start
-(Model 8751-2)
CAPSCREW, Socket Head- 5/16"-18 x 3/4"
MUFFLER, Exhaust
-(Includes Spark Arrestor)
SCREW, Sheet Metal- No. 8 x 3/8"
SCREEN, Spark Arrestor
CRADLE
PAN, Base
WRAPPER, Lower Generator
SCREW- 5/16"-18 x 1/2"
NUT, Hex- 1/4"-20
PANEL, End
PANEL, End
BAFFLE, Generator Air (Left)
BAFFLE, Generator Air (Right)
WRAPPER, Upper Generator
COVER, Muffler and Head
SPACER- 1/8"
GASKET, Exhaust
ADAPTER, Sheet Metal
SCREW- No. 8 x 3/8"
SCREW- No. 10-24 x 3/8"
WASHER, Lock- 5/16"
SCREW- 1/4" x 1"
DIODE- Battery Charge
SCREW- No. 10-32 x 3/8"
WASHER, Lock- No. 10
NUT, Hex - No. 10-32
NUT, Hex - 5/16"-18
-Contact Generac for quantity required.
NUT, Hex - 1/4"-20
-Contact Generac for quantity required.
SCREW (Crimptite)- 1/4"-20 x 1/2"
-Contact Generac for quantity required.
CONTACTOR, Starter
-Contact Generac for quantity required.
SCREW- 1/4"-20 x 3/4"
-Contact Generac for quantity required.
BRACKET, Starter Contactor
-Contact Generac for quantity required.
TRAY, Battery
-Contact Generac for quantity required.
BRACKET
CAPSCREW, Hex Head- 1/4"-20 x 1-1/4"
-Contact Generac for quantity required.
UNKNOWN
-Contact Generac for quantity required.
HOLDDOWN, Battery
-Contact Generac for quantity required.
MOUNT, Vibration
SUPPORT, Rear
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Footnotes:
Used on Model No. 8752-2 (Electric Start) only
Copyright © Briggs & Stratton. All Rights reserved
11
22-Jul-2021
Sheet Metal No. 68373 - Manual Start
Note: Unless noted otherwise, use the standard torque specifications
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Mfg. No: 8751-2
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Sheet Metal No. 68373 - Manual Start
REF NO
PART NO
QTY
DESCRIPTION
43
44
45
46
51374
22097
22283
-----
4
6
2
A/R
47
-----
A/R
48
-----
A/R
49
-----
A/R
CAPSCREW- 1/4"-20 x 1-1/2"
WASHER, Lock- 1/4"
CAPSCREW- 5/16"-18 x 1-1/2"
CLAMP
-Contact Generac for quantity required.
NUT, Lock- 1/4"-20
-Contact Generac for quantity required.
CAPSCREW- 1/4"-20 x 1/2"
-Contact Generac for quantity required.
WASHER, Flat- 1/4"
-Contact Generac for quantity required.
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Footnotes:
Used on Model No. 8752-2 (Electric Start) only
Copyright © Briggs & Stratton. All Rights reserved
13
22-Jul-2021
Hardware Identification & Torque Specifications
Torque Specification Chart
Torque Specification Chart
FOR STANDARD METRIC MACHINE HARDWARE (Tolerance ± 20%)
Property
Class
5.6
8.8
Class 5.6
Class 8.8
in/lbs
Size Of
Hardware ft/lbs
M3
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M39
5.88
13.44
26.4
44.64
5.2
7.7
15
26
42
64
89
126
169
217
320
435
590
759
988
10.9
Nm.
Nm.
in/lbs
ft/lbs
.56
1.28
2.50
4.3
7.1
10.5
21
36
58
88
121
171
230
295
435
590
800
1030
1340
13.44
30.72
60.96
7.3
12.1
17.7
35
61
101
147
202
290
390
497
733
995
1349
1740
2249
1.28 19.2
2.90 43.44
5.75 5.97
9.9 10.3
16.5 16.9
25
24
50
48
83 86.2
136
132
210
200
287
275
405
390
559
530
708
375
995 1032
1350 1401
1830 1902
2360 2441
3050 3163
SAE Grade 2
Class 12.9
Size Of
Hardware
Nm.
in/lbs
ft/lbs
Nm.
1.80
4.10
8.10
14
23
34
67
117
185
285
390
550
745
960
1400
1900
2580
3310
4290
22.92
52.56
7.15
12.1
19.9
29
59
103
162
250
346
486
656
840
1239
1681
2278
2935
3798
2.15
4.95
9.7
16.5
27
40
81
140
220
340
470
660
890
1140
1680
2280
3090
3980
5150
20
10
30
40
50
60
80
70
Body Length
Screw, M8- 1.25 x 25
Thread
Diameter (mm)
Threads
Inside
Diameter (in) per inch
1/4
1/2
3/4
1
2.1
2.3
3.1
3.5
7.6
8.6
15.0
16.3
27.2
31.3
40.8
47.6
68.0
74.8
88.4
102.0
122.4
136
217.6
244.8
190.4
210.8
299.2
326.4
Body
Length (mm)
Body
Length (in)
in/lbs
ft/lbs
30
31
43
49
8
10
17
19
30
35
50
55
75
90
110
120
150
180
260
300
400
440
580
640
SAE Grade 8
Nm.
in/lbs
ft/lbs
Nm.
3.4
3.5
4.9
5.5
10.9
13.6
23.1
25.8
40.8
47.6
68.0
74.8
102.0
122.4
149.6
163.2
204.0
244.8
353.6
408.0
544.0
598.4
788.8
870.4
41
43
60
68
12
14
25
29
45
50
70
80
110
120
150
170
220
240
386
420
600
660
900
1,000
4.6
4.9
6.8
7.7
16.3
19.0
34.0
34.0
61.2
68.0
95.2
108.8
149.6
163.2
204.0
231.2
299.2
326.4
525.0
571.2
816.0
897.6
1,244.0
1,360.0
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.
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.
Screw, 1/2- 16 x 2
Nut, 1/2-16
0
Distance between
threads (mm)
Threads
per inch
Thread
Diameter (mm)
Body
Diameter
19
20
27
31
66
76
11
12
20
23
30
35
50
55
65
75
90
100
160
180
140
155
220
240
SAE Grade 5
Nm.
100
90
Body
Diameter
Nut, M8
in/lbs
ft/lbs
8-32
8-36
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
7/8-14
1-8
1-12
The guides and ruler furnished below are designed to
help you select the appropriate hardware.
0
No
Marks
Hardware
Grade
12.9
Class 10.9
in/lbs
ft/lbs
FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)
1/4
1/2
3/4
2
1/4
1/2
3/4
3
1/4
1/2
3/4
4
Common Hardware Types
Hex Head Capscrew
Washer
Standard Hardware Sizing
When a washer or nut is identified as 1/2” (M8), this is
the Nominal size, meaning the inside diameter is 1/2 inch
(8mm metric thread diameter); if a second number is present
it represents the threads per inch (distance between threads).
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, (distance between threads). The final number
is the body length of the bolt or screw, 2 inches (50mm).
Lockwasher
Carriage Bolt
Hex Nut
Wrench & Fastener Size Guide
1/4” Bolt or Nut
Wrench—7/16”
5/16” Bolt or Nut
Wrench—1/2”
3/8” Bolt or Nut
Wrench—9/16”
M6 Bolt or Nut
Wrench—10mm
M8 Bolt or Nut
Wrench—13mm
M10 Bolt or Nut
Wrench—17mm
7/16” Bolt or Nut
1/2” Bolt or Nut
Wrench (Bolt)—5/8”
Wrench—3/4”
Wrench (Nut)—11/16”
M12 Bolt or Nut
Wrench—19mm
M14 Bolt or Nut
Wrench—22 mm
Copyright © Briggs & Stratton. All Rights reserved
22-Jul-2021

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