Simplicity 1686609 Setup guide

Rev. 11/2000
TP-400-2450-00-AT-SMA
Attachment
Illustrated
Parts List
© Copyright 2000 Simplicity Manufacturing, Inc.All Rights Reserved.
MANUFACTURING, INC.
500 N Spring Street / PO Box 997
Port Washington, WI 53074-0997 USA

2
TP-400-2450-00-AT-SMA
© Copyright 2000 Simplicity Manufacturing, Inc. All Rights Reserved.
Grass Mulcher & Leaf Shredder Kits - 38” Mower
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
984695
The above parts group applies to the following Mfg. Nos.:
1692471 Grass Mulcher Kit - 38” Mower
1686609 Leaf Shredder Kit

3
TP-400-2450-00-AT-SMA
Grass Mulcher & Leaf Shredder Kits - 38” Mower
1 1917372 7 NUT, Hex, 5/16-18
2 1917356 7 LOCKWASHER, 5/16
3 1931333 5 CARRIAGE BOLT, 5/16-18 x 3/4
4 1708064 1 BAFFLE & DEFLECTORS ASSEMBLY
5 1708006 1 BAFFLE
6 1707684 8 LEAF SHREDDER
7 1919438 8 NUT, Hex Nylock, 5/16-18
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1692471 Grass Mulcher Kit - 38” Mower
1686609 Leaf Shredder Kit

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.
01/4 3/4
1/2 11/4 3/4
1/2 21/4 3/4
1/2 31/4 3/4
1/2 4