Simplicity 3901 Setup guide

Attachment
Illustrated
Parts List
Rev. 04/2007
500 N. Spring Street / PO Box 997
Port Washington, WI 53074-0997 USA
www.simplicitymfg.com
MANUFACTURING, INC.
© Copyright Simplicity Manufacturing, Inc. All Rights Reserved. Printed In USA.2007 TP 400-3901-00-AT-SMA
Mf
g
. No. Descri
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Attachment
1694399 540 RPM P.T.O.
1731106
Part No.:

Table Of Content
s
Torque Specification Chart ..................................................................... Inside Back Cover
PRODUCT COMPONENTS PAGES
Tuff Torq PTO Group - 540 RPM ......................................................................................................................... 4

Tuff Torq PTO Group - 540 RPM
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
1694399
The above parts group applies to the following Mfg. Nos.:
4
2007Copyright © by Briggs and Stratton Corporation
Briggs and Stratton Yard Power Products Group
Milwaukee, WI, USA. All rights reserved
1694399 - 540 RPM P.T.O.
TP 400-3901-00-AT-SMA

PART NO. DESCRIPTIONREF NO QTY.
Tuff Torq PTO Group - 540 RPM
Footnotes
CAPSCREW, Hex Head, 1/4 - 20 x 7/81 1960666SM 1
HANDLE, 540 PTO2 1726043SM 1
NUT, Nylock, 1/4 - 203 1920397SM 1
SWITCH, Ball4 1654634SM 2
NUT, Hex Washer, 3/8 -165 1960680SM 1
BUSHING6 1676148SM 2
SPACER7 1669105SM 1
HANDLE ASSEMBLY8 1724225SM 1
WASHER9 1919326SM 2
PIN, Quick10 1722460SM 2
BOLT, Carriage, 3/8 - 16 x 2-1/211 1960615SM 1
PTO, 540 RPM, Tuff Torq12 1725790SM 1
ARM & HUB ASSEMBLY13 1724216SM 1
ROLL PIN14 1725010SM 1
CAPSCREW, Hex Washer Head, 5/16 - 18 x 3/415 1664847SM 2
SHIELD & DECAL ASSEMBLY16 1725944SM 1
CAPSCREW, Hex Head, M12 - 1-3/4 x 25mm17 1960677SM 2
ROD18 1724229SM 1
DECAL, 540 PTO Lever Control19 1725574SM 1
CAPSCREW, 8mm x 90mm20 1726291SM 4
COVER, 540 PTO21 1726474SM 1
RING, Snap22 1726249SM 1
WIRE HARNESS23 1724963SM 1
O-RING24 1726283SM 1
O-RING25 1726106SM 1
SOLENOID GASKET26 1726169SM 1
CAPSCREW, 8mm x 30mm27 1718122SM 10
The above parts group applies to the following Mfg. Nos.:
5
2007Copyright © by Briggs and Stratton Corporation
Briggs and Stratton Yard Power Products Group
Milwaukee, WI, USA. All rights reserved
1694399 - 540 RPM P.T.O.
TP 400-3901-00-AT-SMA

Torque Specification Chart
FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%)
Hardware
Grade
SAE Grade 2 SAE Grade 5 SAE Grade 8
Size Of in/lbs in/lbs in/lbs
Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm.
8-32 19 2.1 30 3.4 41 4.6
8-36
20 2.3 31 3.5 43 4.9
10-24
27 3.1 43 4.9 60 6.8
10-32
31 3.5 49 5.5 68 7.7
1/4-20
66 7.6 810.9 12 16.3
1/4-28
76 8.6 10 13.6 14 19.0
5/16-18 11 15.0 17 23.1 25 34.0
5/16-24 12 16.3 19 25.8 27 34.0
3/8-16 20 27.2 30 40.8 45 61.2
3/8-24 23 31.3 35 47.6 50 68.0
7/16-14 30 40.8 50 68.0 70 95.2
7/16-20 35 47.6 55 74.8 80 108.8
1/2-13 50 68.0 75 102.0 110 149.6
1/2-20 55 74.8 90 122.4 120 163.2
9/16-12 65 88.4 110 149.6 150 204.0
9/16-18 75 102.0 120 163.2 170 231.2
5/8-11 90 122.4 150 204.0 220 299.2
5/8-18 100 136 180 244.8 240 326.4
3/4-10 160 217.6 260 353.6 386 525.0
3/4-16 180 244.8 300 408.0 420 571.2
7/8-9 140 190.4 400 544.0 600 816.0
7/8-14 155 210.8 440 598.4 660 897.6
1-8 220 299.2 580 788.8 900 1,244.0
1-12 240 326.4 640 870.4 1,000 1,360.0
Hex Head Capscrew
Hex Nut
Lockwasher
Washer
Carriage Bolt
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.
Hardware Identification & Torque Specifications
Common Hardware Types
Screw, 1/2 x 2
Body
Diameter
Body
Length
Inside
Diameter
Nut, 1/2”
No
Marks
3/8” Bolt or Nut
Wrench—9/16”
3/8
5/16” Bolt or Nut
Wrench—1/2”
5/16
1/4” Bolt or Nut
Wrench—7/16”
1/4
1/2” Bolt or Nut
Wrench—3/4”
1/2
DIA.
7/16
DIA.
7/16” Bolt or Nut
Wrench (Bolt)—5/8”
Wrench (Nut)—11/16”
Wrench & Fastener Size Guide
Standard Hardware Sizing
When a washer or nut is identified as 1/2”, this is the
Nominal size , meaning the inside diameter is 1/2 inch; if a
second number is present it represent the
threads per inch
When bolt or capscrew is identified as 1/2 - 16 x 2”, this
means the
Nominal size , or body diameter is 1/2 inch; the
second number represents the
threads per inch (16 in this
example, and the final number is the
body length of the
bolt or screw (in this example 2 inches long).
The guides and ruler furnished below are designed to
help you select the appropriate hardware and tools.
0
1/4 3/4
1/2
1
1/4 3/4
1/2
2
1/4 3/4
1/2
3
1/4 3/4
1/2
4