Snapper Lawn Mower Accessory 1721303 01 User Manual

ATTACHMENT  
OPERATOR’S  
MANUAL  
Snow/Dozer  
Blade & Hitch  
Snow Plow/Dozer Blade  
Mfg. No.  
Description  
1693754  
42” Remote Angling Snow Plow/Dozer Blade  
Hitch  
Mfg. No.  
Description  
1693757  
Hitch (for Sovereign / 900 / 2800 Series)  
1721303-01  
Rev 1/2001  
TP 100-2374-01-AT-SMA  
Safety Rules  
& Information  
Read these safety rules and follow them closely. Failure to obey these rules could result in loss of control  
of unit, severe personal injury or death to you, or bystanders, or damage to property or equipment.  
The triangle in text signifies important cautions or warnings which must be followed.  
GENERAL WARNINGS  
PREPARATION  
G Know the tractor controls and how to stop quickly.  
G Disengage the PTO before making any adjustments.  
READ THE TRACTOR OPERATOR’S MANUAL.  
G Never attempt to make any adjustments while engine  
G Read this manual and the tractor Operator’s Manual  
carefully. Be thoroughly familiar with the controls and  
the proper use of the equipment.  
is running.  
G Thoroughly inspect the area where the dozer is to be  
operated and remove all foreign objects.  
G Never allow children to operate the machine. Do not  
G Adjust the skid shoe height to clear gravel or crushed  
stone surface. See the Adjustments section for pro-  
cedure.  
allow adults to operate it without proper instruction.  
G Do not carry passengers.  
G Use only attachments or accessories designed for  
your machine. See your dealer for a complete list of  
recommended attachments or accessories.  
OPERATING SAFETY  
G Always clear snow up and down the face of slopes,  
never across the face. Exercise extreme caution  
when changing direction on slopes. Do not attempt to  
clear steep slopes.  
G Keep the area of operation clear of all persons, par-  
ticularly small children, and pets.  
G Never direct discharge towards bystanders.  
G Make sure all hardware is secure and that dozer  
G Exercise extreme caution when operating on, or  
crossing, gravel drives, walks or roads. Stay alert for  
hidden hazards or traffic.  
blade is in good operating condition.  
G Check to be sure all safety devices and shields are in  
place.  
G After striking an object or if unit starts to vibrate  
abnormally, stop the engine and remove the key.  
Check for the cause and any damage before restart-  
ing. Before any inspection, make sure all moving  
parts have stopped.  
G Check that all adjustments are correct before using  
this unit.  
G Gasoline is highly flammable. Follow all precautions  
listed in your tractor’s operator’s manual.  
G Always wear eye protection while operating and per-  
forming adjustments to protect eyes from debris  
thrown by the dozer.  
G Take all possible precautions before leaving opera-  
tor’s position. Lower the attachment, set the parking  
brake, stop the engine and remove the key.  
G When cleaning, repairing, or inspecting the unit make  
sure all moving parts have stopped. Disconnect and  
secure the spark plug wires and remove the key to  
prevent accidental starting.  
G Never operate near glass enclosures, automobiles,  
window wells, dropoffs, etc.  
G Do not put hands or feet near or under the dozer  
blade. Keep clear of the dozer blade at all times.  
G Do not overload machine capacity by attempting to  
clear too much material at too fast a rate.  
DANGER  
G Never operate unit at high transport speeds on slip-  
pery surfaces. Use care when travelling in reverse.  
OPERATING ON SLOPES  
CAN BE DANGEROUS  
For operation on slopes greater than 15% (8.5°),  
weight box, tire chains, and wheel weights are  
recommended. NEVER OPERATE ON SLOPES  
GREATER THAN 17.6% (10°).  
G Never operate the dozer blade without good visibility  
or light. Always be sure your feet are properly placed  
on the footrests and keep a firm hold on the steering  
wheel.  
G Do not run the engine indoors.  
G Never allow anyone in front of the unit.  
2
Features  
& Controls  
CONTROL FUNCTIONS  
A
The information below briefly describes the  
function of individual controls. Operating the  
tractor and dozer require the combined use of  
these controls and additional controls whose  
operation is described in the tractor Operator’s  
Manual.  
B
Please take a moment and  
familiarize yourself with the  
name, location, and function  
of these controls so that you  
will better understand the safe-  
ty and operating instructions  
provided in this manual.  
Figure 1. Control Locations  
A. Blade Angle Control Lever  
B. Attachment Lift  
A. Blade Angle Control Lever  
The blade angle release lever controls a spring-loaded  
plate which locks the blade in one of three positions.  
Use an abrupt pushing/pulling motion to release the  
angling mechanism and move the blade left or right.  
Push the angling lever forward fully to lock the blade in  
the left position. Pull the lever fully back to lock the  
blade in the right position. Move the lever slowly past  
center to lock in the centered position.  
NOTE: It is easier to change the angle of the blade with  
the attachment raised.  
B. Attachment Lift  
TRACTOR CONTROLS  
NOTE: Models with hydraulic or electric lift should refer  
to the tractor operator’s manual for lift control informa-  
tion.  
Before you begin operating the tractor with the dozer  
blade attachment, make certain you have:  
• Read and understood the instructions in the  
tractor Operator’s Manual.  
The attachment lift lever raises and lowers the dozer  
blade. See the tractor operator’s manual for control  
information. See the Adjustments section for proper  
attachment lift adjustment.  
• Become thoroughly familiar with all of the  
tractor controls and their operation, including  
how to safely and properly start and stop the  
unit.  
• Practice driving in an open area—without doz-  
ing—to become accustomed to the unit.  
3
General  
Operating Instructions  
Checks Before Starting  
WARNING  
1. Refer to the Maintenance & Adjustments sections of  
this manual and perform any needed service. Also,  
refer to the tractor Operator’s Manual and perform  
any required service.  
Perform the Safety System Interlock test found in  
your tractor Operator’s Manual. If tractor does not  
pass the test, do not operate the tractor. See your  
authorized dealer. Under no circumstances  
should you attempt to defeat the safety system.  
2. Remove any objects from the work area which might  
interfere with plowing activity.  
Use caution when plowing a snow covered area.  
Snow can cover objects such as curbs, drop-offs,  
and other obstacles. Be familiar with the area you  
are plowing.  
3. Adjust the skid shoes to desired height. See Skid  
Shoe Adjustment.  
4. Make sure all hardware is present and secure.  
To prevent an explosion or fire, never store the  
tractor with fuel in the tank inside a building  
where an ignition source is present.  
Engine & Ground Speed Selection  
Always run the engine at full throttle.  
Set tractor speed to obtain the needed power to move  
the material. Operate at a safe speed, depending on  
conditions, so that you have complete control of the trac-  
tor. Rear wheel weights and chains are recommended  
for slippery surfaces.  
IMPORTANT NOTE  
To prevent damage to the unit, always  
raise the dozer blade BEFORE turning or  
backing up.  
A weight box is recommended for additional traction.  
DANGER  
OPERATING ON SLOPES CAN BE DANGEROUS  
Transporting  
For maximum ground clearance, transport the blade to  
and from work areas fully raised and angled straight  
ahead.  
Never operate on slopes greater than 17.6% (10°)  
which is a rise of 3-1/2 feet (106cm) vertically in  
10 feet (607cm) horizontally.  
Operate the unit at a slow ground speed when  
driving onto slope. Avoid using brakes to control  
ground speed.  
Starting & Stopping  
1. Start the tractor engine. Set engine throttle to full.  
2. Raise the attachment lift and travel to the work site.  
3. Set the angling control to the desired angle.  
4. Lower the attachment lift and begin plowing.  
5. Raise the plow before backing up.  
When operating on slopes that are greater than  
15 % (8.5°) but less than 17.6%, use additional  
wheel weights or counterweights.  
In addition to counterweights, use extra caution  
when operating on slopes. Drive UP and DOWN  
the slope, never across the face, use caution  
when changing directions and DO NOT START  
OR STOP ON SLOPE.  
6. To stop the tractor, set ground speed to neutral and  
set the parking brake. Before leaving the seat, stop  
the engine, set the parking brake, remove the key,  
and wait for all moving parts to stop.  
For additional traction, tire chains and wheel  
weights can be added. Maximum weight added to  
tractor should not exceed 35 lbs. per wheel.  
4
General Operating Instructions  
Changing Angle of the Blade:  
Snow Plowing Tips  
See Figure 1 for location of Controls.  
• Determine the best snow removal pattern before  
beginning.  
NOTE: It is easier to change the angle of the blade with  
the attachment raised.  
• Plan the pattern so that you avoid pushing snow onto  
cleared areas.  
1. Raise the attachment lift.  
• When land contour permits, it is best to travel in the  
longest direction to minimize turning.  
2. Use an abrupt pushing/pulling motion to release the  
angling mechanism and move the blade left or right.  
Push the angling lever forward fully to lock the blade  
in the left position. Pull the lever fully back to lock the  
blade in the right position. Move the lever slowly over  
center to lock in the centered position.  
• In very deep or heavy snow, it may be necessary to  
make the first pass with dozer blade partially raised,  
then repeat each pass with the blade lowered to clear  
the material left on the surface. Also, it may be nec-  
essary to clear less than the full width of the dozer  
blade or reduce ground speed.  
Dozing Tips  
• Snow tends to freeze into solid banks when plowed  
off a driveway or other large area. Because of this  
you may want to plow snow several feet past the  
edge of the drive to allow space for future plowing to  
build up.  
• Determine the best dozing pattern before beginning.  
• When land contour permits, it is best to travel in the  
longest direction to minimize turning.  
• In very deep snow or gravel, it may be necessary to  
make the first pass with dozer blade partially raised,  
then repeat each pass with the blade lowered to clear  
the material left on the surface. Also, it may be nec-  
essary to clear less than the full width of the dozer  
blade or reduce ground speed.  
• If pushing snow past the edges of driveways or side-  
walks, be careful not to tear up the grass buried  
under snow next to the drive or sidewalk. Lift the  
blade several inches off the ground to avoid damag-  
ing the grass.  
• Spinning tires with tire chains can leave unsightly  
marks or permanent damage to asphalt or concrete  
driveways or sidewalks. Avoid sudden stops or  
starts.  
• When dozing, push the dirt to the desired location,  
then drag the blade backwards for final leveling. Pack  
down the dirt or gravel by driving the tractor over the  
leveled area.  
• Use any slight grade to your advantage, doze down-  
hill, and set the blade angle so that the plowed mater-  
ial is moving downhill as it leaves the blade.  
Storage  
Off-Season Storage  
IMPORTANT NOTE  
Refer to Tractor Operator’s Manual for  
important information concerning safely  
storing your tractor.  
1. Remove dozer blade and hitch from the tractor.  
2. Use water pressure or a brush to thoroughly clean  
the dozer blade.  
3. Paint, or lightly coat with oil, any area where paint  
has been worn or chipped away.  
Daily Storage  
4. Lubricate the dozer blade.  
1. Allow tractor engine to cool before storing in any  
enclosure.  
5. Store the dozer blade and hitch in a dry place.  
2. After dozing or plowing jobs are completed, hose or  
brush down the blade to remove excess dirt.  
3. Lightly oil all pivot points. Coat bare metal surfaces to  
prevent corrosion.  
5
Maintenance  
WARNING  
Lubricate Dozer Blade  
To avoid serious injury, perform maintenance on  
the tractor or dozer blade only when the engine is  
stopped, parking brake is set and all moving parts  
have stopped. Always remove the ignition key  
before beginning maintenance or adjustments to  
prevent accidental starting of the engine.  
Lubricate the dozer blade as shown in Figure 2. Where  
an oil can is shown, wipe the area clean, apply a few  
drops of oil (SAE 30), then wipe up drips or spills.  
In general, linkage connections and other parts that have  
partial rotational or sliding movement should be lubricat-  
ed periodically with SAE 30 weight oil. Avoid applying  
excessive amounts of oil since this may cause a build-up  
of dirt around the lubricated area, making subsequent  
lubrication more difficult to accomplish.  
Schedule For Normal Care  
Care Required  
Schedule  
Clean debris from  
dozer blade.  
After each use.  
Lubricate dozer blade.  
Every 10 hours or at  
least once a year.  
Figure 2. Lubrication Points  
6
Adjustments  
Skid Shoe Adjustment  
Slotted holes are provided to permit adjustment of the  
shoe assemblies for raising and lowering the blade to  
various working heights (see Figure 3).  
When cleaning snow from gravel or earth drives or  
walks, the shoe assemblies should be lowered fully to  
prevent blade contact with gravel or ground. When  
cleaning smooth hard surfaces like concrete, the shoe  
assemblies are normally placed fully up to allow the  
blade to scrape the surface.  
To adjust the skid, raise the blade off the ground and  
block with a piece of wood. Loosen the bolts (B, Figure  
3) and move the skid shoes (A) up or down to desired  
height. Tighten the bolts securely.  
Figure 3.  
A. Skid Shoes  
B. Bolts  
Spring Tension  
See Figure 4. This snow plow/dozer blade is spring  
loaded so that when the blade strikes a solid object, the  
springs will allow the blade to release as shown, rather  
than cause damage. The blade will go back to its original  
position after object is cleared.  
Figure 4. Dozer Blade “Released”  
See Figure 5. To adjust spring tension hold rear nut (B)  
and loosen front nut (E). Tighten rear nut (B) to increase  
spring tension, or loosen to decrease tension.  
For initial adjustment, tighten nut (B) on each eyebolt  
enough to expose about 3/4" (19mm) of thread. Tighten  
front nut (E) against rear nut (B) to lock adjustment in  
place.  
Figure 5. Tension Springs  
A. Eyebolt  
B. Nut, 5/16  
C. Spring  
D. Pivot Frame  
E. Nut, 5/16  
7
Adjustments  
Lift Rod Adjustment  
In the fully raised position the blade should be 6” off the  
ground. In the fully lowered position, the lift rod should  
slightly compress the spring creating downward pressure  
on the blade.  
D
C
B
E
NOTE: Always adjust the lift height before and after  
adjusting the downward pressure.  
A
IMPORTANT NOTE  
DO NOT OVER-COMPRESS THE SPRINGS.  
In addition to providing downward pressure,  
the springs are an elastic medium that  
absorbs shocks caused by bumps and  
cracks in ground surfaces. Over-compress-  
ing the springs defeats this and may cause  
damage to the unit.  
Figure 6. Adjusting Lift Rod  
A. Front Set Collar  
B. Rod Guide  
C. Spring  
D. Rear Set Collar  
E. Spring Clip  
8
Initial Setup  
& Assembly  
1
4
5
4
3
6
4
2
4
3
8
9
7
10  
29  
28  
11  
12  
27  
2
26  
25  
22  
24  
23  
10  
21  
20  
19  
15  
18  
17  
13  
15  
14  
16  
Figure 7. Dozer Components  
Ref Qty Description  
Ref Qty Description  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
1
6
2
4
2
1
1
1
1
3
1
1
1
6
ROD, Control Handle, Upper  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
6
2
4
4
2
2
1
2
1
2
2
1
1
2
NUT, Hex, 3/8-16  
SKID SHOE  
NUT, Hex, 5/16-18  
LOCKWASHER, 5/16  
WASHER, 5/16  
CAPSCREW, 5/16-18 x 1-1/4  
ROD, Control Handle, Lower  
CLEVIS  
WASHER, 1/2  
CLIP, Hair Pin  
COTTER PIN  
WASHER, Plain, 3/8  
CAPSCREW, 3/8-16 x 3/4  
CAPSCREW, 1/2-13 x 1-1/2  
SPACER, 1/2 ID x 3/4 OD x 5/16 LG  
ROD, Latch Stop  
LOCKNUT, 1/2-13  
FRAME ASMY, Dozer  
EYEBOLT  
SPRING, Extension  
CLIP, Hair Pin  
PLATE ASMY, Latch  
SPRING, Torsion  
ROD & PLATE ASMY, Pivot  
DOZER BLADE ASMY, 42”  
SCRAPER BAR  
CARRIAGE BOLT, 3/8-16 x 1  
10 LOCKWASHER, 3/8  
9
Initial Setup & Assembly  
2
8
1
7
3
4
18  
19  
6
5
16  
3
21  
12  
4
16  
14  
13  
20  
18  
9
8
8
17  
15  
9
11  
10  
8
Figure 8. Push Bar, Hitch, & Lift Rod Components  
Ref Qty Description  
Ref Qty Description  
1
2
3
4
5
6
7
8
9
2
2
2
2
1
1
1
5
2
1
1
STOP, Bar  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
1
1
1
1
2
2
2
1
1
1
EYEBOLT, 1/4-20 x 1-1/2  
LOCKNUT, Center, 1/4-20  
BRACKET, Control Rod  
WASHER, 3/8  
SCREW, Taptite, 5/16-18 x 1  
SETSCREWS, 5/16 x 1/2  
SET COLLAR  
ROD GUIDE ASSY.  
SPRING  
ROD, Lift, Electric/Hydraulic  
CLIP, Hairpin  
CLEVIS PIN  
WASHER, 5/16  
LOCKNUT, Flange, Whizlock 5/16-18  
CAPSCREW, 5/16-18 x 1-1/2  
BRACKET, Control Rod  
NUT, Hex, Full, 5/16  
LOCKWASHER, 5/16  
10  
11  
PUSH BAR ASSY, Front  
PIVOT PIN  
10  
Initial Setup & Assembly  
Figure 9. Bar Stop  
A. Bar Stops  
B. Taptite Screws, 5/16-18 x 1  
Figure 10. Tension Springs  
A. Eyebolt  
B. Nut, 5/16  
C. Spring  
D. Pivot Frame  
E. Nut, 5/16  
INITIAL SETUP & ASSEMBLY  
NOTE: Some of the following setup procedures may  
already be completed.  
Assemble Blade  
1. Place the blade on a flat surface.  
2. Install the bar stops (A, Figure 9) using the two 5/16-  
18 x 1 taptite screws (B).  
3. See Figure 10. Insert threaded end of eyebolt (A)  
through lug on blade, and screw on 5/16 nut (B) just  
far enough so that it is flush with the end of the eye-  
bolt.  
4. Hook the springs (C) into the pivot frame (D). Using a  
pliers, stretch the springs to hook the opposite ends  
to the eyebolts (A).  
5. Tighten the nut (B) on each eyebolt enough to expose  
about 3/4" (19 mm) of thread.  
6. Holding the first nut (B) with a wrench,add a second  
nut (E) to each eyebolt, and tighten securely against  
the first nut to act as a jam nut.  
11  
Initial Setup & Assembly  
Assemble Lift Rod  
D
1. Assemble lift rod per Figure 11.  
Lift Rod Adjustment  
C
Different types of terrain may require an adjustment  
to the lift rod assembly. For instructions on how to  
make this adjustment refer to the “Lift Rod  
Adjustment” procedure in the ADJUSTMENTS sec-  
tion of this manual.  
B
A
Figure 11. Lift Rod Assembly  
A. Set Collars  
B. Rod Guide  
C. Spring  
D. Lift Rod  
Install Blade  
1. Drive the tractor over the push bar until rear of push  
bar is under front hitch.  
2. Stop engine, remove key and set parking brake.  
3. Raise rear of push bar so its arms fit between lugs of  
hitch (A, Figure 12) just behind front axle. Use two  
clevis pins (B) and spring clips (C) to secure push bar  
to hitch.  
4. Insert front of push bar (D) into pivot frame on rear of  
blade. Then install king pin (E) down through holes in  
hitch and pivot frame. Secure king pin with spring clip  
(F).  
5. Insert prong of rod guide assembly (H) thru hole in  
upright of push bar. Secure with spring clip (I).  
6. Connect rear of lift rod (J) to tractor lift arm (K) using  
spring clip (G).  
Figure 12. Push Bar Installation  
A. Tractor Hitch  
B. Clevis Pin  
C. Spring Clip  
D. Push Bar  
G. Spring Clip  
H. Rod Guide Assembly  
I. Spring Clip  
J. Lift Rod  
E. King Pin  
K. Lift Arm  
F. Spring Clip  
12  
Initial Setup & Assembly  
Install Angling Control Rod  
NOTE: If installing the dozer attachment on a unit  
equipped with a snowcab, replace the control rod sup-  
port (A, Figure 13) with the hanging support (Ref. No. 19,  
Figure 8). Mount the hanging support to the front cab  
cross-bar.  
A
B
1. Set the angling control support (A, Figure 13) against  
the right side of the frame. Insert two 5/16-18 x 1-1/2  
capscrews (C) through the support (A), and frame.  
Space the lower hole away from the frame with a  
5/16 washer (D). Secure using flange locknuts (E).  
C
2. Install the eyebolt (B) in the support (A) and secure  
with a centerlock nut.  
D
E
Figure 13. Control Rod Support  
A. Angling Support  
B. Eyebolt & Locknut  
D. 5/16 Flatwasher  
E. Flange Locknuts  
C. 5/16-18 x 1-1/2 Capscrews  
3. Connect the lower angling rod (F, Figure 14) to the  
dozer release lever using a hair pin clip and washer  
(G).  
D
C
B
E
4. Insert the upper control rod (C) through the eyelet  
(B), and secure the eyelet to the support using a 1/4-  
20 centerlock nut (A).  
NOTE: It may be necessary to leave the eyebolt nut (A,  
Figure 14) loose to prevent binding.  
F
5. Secure the upper rod (C) to the lower rod (F) using  
two 5/16-18 x 1-1/4 capscrews (D), washers (qty. 4),  
lockwashers, and nuts (E). NOTE: Match offset to  
offset so the rods form a straight line.  
A
G
Figure 14. Assemble Control Rods  
A. 1/4-20 Centerlock Nut  
B. Eyelet  
C. Upper Control Rod  
D. 5/16-18 x 1-1/4 Capscrew  
E. 5/16 Washers, Lockwashers, & Nuts  
F. Lower Control Rod  
G. Hair Pin Clip & Washer  
13  
Attaching &  
Removing  
A
B
D
C
C
E
B
Figure 15. Dozer Removal  
A. Support Arm  
B. Hair Pin Clip  
C. Pivot Pin  
D. Hair Pin Clip & Washer  
E. Clevis Pins  
REMOVAL & INSTALLATION  
Removing & Attaching Dozer Blade  
1. Lower the blade.  
4. Remove the pivot pin (C) connecting the blade and  
pushbar. Remove the blade.  
2. Remove the hair pin clip and washer (D, Figure 15)  
securing the angling control rod to the clevis.  
Disconnect the angling control rod.  
5. Remove pin (E) securing hitch to the tractor.  
8. Reinstall all pins for storage.  
3. Remove the angling control rod from the  
support arm (A).  
Install in reverse order of removal.  
14  
Hardware Identification & Torque Specifications  
Common Hardware Types  
Torque Specification Chart  
Hex Head Capscrew  
FOR STANDARD MACHINE HARDWARE (Tolerance 20%)  
Washer  
No  
Marks  
Hardware  
Grade  
Lockwasher  
Carriage Bolt  
SAE Grade 2  
SAE Grade 5  
SAE Grade 8  
Hex Nut  
Size Of  
in/lbs  
in/lbs  
in/lbs  
Hardware ft/lbs  
Nm.  
2.1  
2.3  
3.1  
3.5  
7.6  
ft/lbs  
Nm.  
3.4  
3.5  
4.9  
5.5  
10.9  
13.6  
23.1  
25.8  
40.8  
ft/lbs  
Nm.  
4.6  
4.9  
6.8  
7.7  
16.3  
19.0  
34.0  
34.0  
61.2  
Standard Hardware Sizing  
8-32  
8-36  
19  
20  
30  
31  
43  
49  
8
10  
17  
19  
30  
35  
50  
55  
75  
41  
43  
60  
68  
12  
14  
25  
27  
45  
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  
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  
27  
31  
66  
76  
11  
12  
20  
23  
30  
35  
50  
55  
65  
75  
90  
100  
160  
180  
140  
155  
220  
240  
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).  
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  
The guides and ruler furnished below are designed to  
help you select the appropriate hardware and tools.  
47.6  
68.0  
74.8  
50  
70  
80  
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  
102.0  
122.4  
149.6  
163.2  
204.0  
244.8  
353.6  
408.0  
544.0  
598.4  
788.8  
110  
120  
150  
170  
220  
240  
386  
420  
600  
660  
Nut, 1/2”  
90  
Inside  
110  
120  
150  
180  
260  
300  
400  
440  
580  
640  
Diameter  
7/8-14  
1-8  
1-12  
Screw, 1/2 x 2  
900 1,244.0  
Body  
Diameter  
870.4 1,000 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.  
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.  
Wrench & Fastener Size Guide  
1/2  
DIA.  
7/16  
DIA.  
3/8  
5/16  
1/4  
1/4Bolt or Nut  
Wrench7/16”  
5/16Bolt or Nut  
Wrench1/2”  
3/8Bolt or Nut  
Wrench9/16”  
7/16Bolt or Nut  
Wrench (Bolt)5/8”  
Wrench (Nut)11/16”  
1/2Bolt or Nut  
Wrench3/4”  
15  
NOTES  
16  
MANUFACTURING, INC.  
500 N Spring Street / PO Box 997  
Port Washington, WI 53074-0997  
© Copyright 2000 Simplicity Manufacturing, Inc.  
All Rights Reserved. Printed in USA.  

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