Landoll 6231 User manual

®
LANDOLL COMPANY, LLC
1900 North Street
Marysville, Kansas 66508
[phone]
800-428-5655 ~ WWW.LANDOLL.COM
‘
Model 6231
Disc
Operators Manual
F-832-2307

Instructions for Ordering Parts
** Repair parts must be ordered through an Authorized Dealer **
Identification Plate and Location
Figure 1-1: Identification Plate and Location
DEALER INSTRUCTIONS FOR ORDERING PARTS FROM LANDOLL PARTS DISTRIBUTION CENTER
Phone #: [phone] or 785-562-5381 Fax #: [phone]
Order online: dealer.landoll.com
IDENTIFICATION PLATE
The identification plate, which lists the model number and serial number, is located on the front of the frame.
SERIAL NUMBER
The serial number is located on the identification plate.
The Following information will help decode the 6231 Disc serial number
62H23100100 = xxmyysssss
QR CODE DECAL
The 5000 series QR code decal, may be scanned to link you to the most current manuals, located on the front
of the frame See Figure 1-1
xx = model series (i.e. 62 for Disc)
m= month of manufacture
(ex. “H” means October. The letter I is not used.)
yy = year manufactured
(ex. “23” means 2023)
SSSSS = Sequential number used to track warranty and service information.
Manuals for 6231 Disc
Manual Number Manual Type
F-832 Operator’s Manual
F-833 Parts Manual
MODEL #
SERIAL #
MADE IN USA 1-573-010006
Landoll Company, LLC
Marysville, Kansas
www.landoll.com
800-428-5655
www.landoll.com
Link to Parts &
Operational Manuals
SCAN ME!
®P/N:232177
62006200

DANGER
Failure to comply with this warning may result
in serious injury or possibly death.
DO NOT operate or perform any maintenance tasks on this
equipment until you have completed the following:
1. Receive proper training to operate this equipment safely.
2. Read and understand the operator’s manual.
3. Be thoroughly trained on inspection and repair procedures.

i
Table of Contents
1 Introduction and Safety Information
Understanding Safety Statements ...................................1-2
Decal Safety ....................................................1-2
Transporting Safety ..............................................1-2
Attaching, Detaching, and Storage ...................................1-3
Maintenance Safety ..............................................1-3
High Pressure Fluid Safety .........................................1-3
Protective Equipment .............................................1-3
Chemical Safety .................................................1-3
Prepare for Emergencies ..........................................1-3
Tire Safety .....................................................1-4
Safety Chain ....................................................1-4
Safety Decals and Reflectors .......................................1-5
2 Specifications
Introduction .....................................................2-1
Owner Assistance................................................2-1
Warranty Registration .............................................2-1
USER'S OBLIGATION: ..........................................2-3
WARRANTY LABOR: ...........................................2-3
General Torque Specifications (rev. 4/97) .............................2-4
Hydraulic Fitting Torque Specifications ...............................2-5
Chevron Flat Bar Reel Placement ..................................2-31
Double Round Reel Placement ....................................2-37
Double Flat Reel Placement .......................................2-41
3 Assembly Instructions
Center Frame Walker Assembly.....................................3-2
6231 Disc Frame and Hitch Assembly ................................3-4
Leveler Assembly ................................................3-6
Manual Leveler ..................................................3-8
Hydraulic Leveler (Option) .........................................3-8
Fold Cylinder Mount .............................................3-10
Center Frame Tires..............................................3-12
Disc Gangs ....................................................3-12
Hydraulic Installation.............................................3-15
Hydraulic Conditioner Reel Assembly (Optional) .......................3-15
Lift Hydraulic Installation..........................................3-16
Fold Hydraulic Installation.........................................3-25
LED Light and SMV Bracket Installation..............................3-33
6231 Coil Tine Assembly .........................................3-36
Hydraulic Conditioner Reel Installation (Option)........................3-43
Spare Tire Installation 6231-21’-29’ (Option) ..........................3-60
Spare Tire Installation 6231-21’-29’ (Option) ..........................3-60

ii F-832-2307
TABLE OF CONTENTS
Rear Tow Hitch Short (Option)..................................... 3-63
Rear Tow Hitch Short Drop (Option) ................................ 3-63
Rear Tow Hitch Long (Option) ..................................... 3-63
Rear Jack Installation............................................ 3-66
Final Assembly................................................. 3-66
4 Operation
Tractor Preparation .............................................. 4-2
Disc Preparation................................................. 4-2
Attaching To The Tractor .......................................... 4-3
Hydraulic Lift System ............................................. 4-3
Hydraulic Fold System ............................................ 4-5
General Operation ............................................... 4-6
Field Operation.................................................. 4-6
Leveling (Side To Side) ........................................... 4-7
Leveling (Front-to-Rear)........................................... 4-8
Hydraulic Leveler Gauge Adjustment................................. 4-9
Variable Ratio Adjustment ........................................ 4-10
Hitch Adjustment ............................................... 4-11
Disc Gang Assembly ............................................ 4-12
Coil Tine Harrow ............................................... 4-13
Coil Tine Maintenance ........................................... 4-13
Operation/Adjustment ........................................... 4-13
Conditioner Single Reels ......................................... 4-15
Chevron Flat Bar Reels .......................................... 4-15
Conditioner Double Reels ........................................ 4-17
Hydraulic Conditioner Reels....................................... 4-18
Front Gauge Wheels ............................................ 4-18
Disc Blades ................................................... 4-19
Depth Stop Adjustment (Manual) ................................... 4-20
Transport ..................................................... 4-21
5 Maintenance and Lubrication
Wheel Bearing Maintenance – Non Triple-Lip .......................... 5-1
Wheel Bearing Maintenance -- Triple-Lip.............................. 5-1
Hydraulic Maintenance............................................ 5-2
Storage........................................................ 5-4
6 Troubleshooting Guide

F-832-2307 1-1
TABLE OF CONTENTS Chapter 1
Introduction and Safety Information
The Landoll Model 6231 Disc is a quality product designed to give years of trouble free performance. By following
each section of this manual, your system will perform as designed for you and your operation.
CHAPTER 1 Gives basic instructions on the use of this manual and understanding the safety
statements.
CHAPTER 2 Gives product specifications for the equipment. These specifications supply lengths and
measures for your equipment. A Standard Bolt Torque Table is provided to give
guidelines for bolt torques to be used when servicing this product.
CHAPTER 3 Contains assembly instructions for your equipment. When these procedures are correctly
followed, your equipment should provide you years of trouble-free operation and service.
CHAPTER 4 Instructs how to operate your equipment before using it, and describes adjustments
needed.
CHAPTER 5 Instructs how to operate your equipment before using it, and describes adjustments
needed. Gives practical advice for the care and maintenance of your Landoll equipment.
Drawings in this section locate adjustment points on the equipment.
IF YOU HAVE ANY QUESTIONS CONTACT:
LANDOLL COMPANY, LLC
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
PHONE # [phone] or [phone]
OR
FAX # [phone]
CHAPTER 6 Is a troubleshooting guide to aid in diagnosing and solving problems with the equipment.
PARTS LIST Is a separate manual showing the various assemblies, subassemblies, and systems.
Refer to that manual when ordering Landoll replacement parts. Order parts from your
Landoll dealer.
WARRANTY The Warranty Registration form is included with the product documents. Fill it out and
mail it within 15 days of purchase.
NOTE: IMPROPER ASSEMBLY, MODIFICATION, OR MAINTENANCE OF YOUR
LANDOLL MACHINE CAN VOID YOUR WARRANTY.
COMMENTS Address comments or questions regarding this publication to:
LANDOLL COMPANY, LLC
1900 NORTH STREET
MARYSVILLE, KANSAS 66508
ATTENTION: PUBLICATIONS - DEPT. 55

1-2 F-832-2307
TABLE OF CONTENTS
Understanding Safety State-
ments
You will find various types of safety information on the
following pages and on the machine signs (decals)
attached to the vehicle. This section explains their
meaning.
The Safety Alert Symbol means ATTENTION! YOUR
SAFETY IS INVOLVED!
NOTE
Means that failure to follow these instructions could
cause damage to the equipment or cause it to operate
improperly.
NOTICE
CAUTION
WARNING
DANGER
DANGER
NOTE
Make sure you read and understand the information
contained in this manual and on the machine signs
(decals) before you attempt to operate or maintain
this vehicle.
The safety statements contained in this manual relate to
the operation of the Model 6231 Disc.
Decal Safety
1. Examine safety decals and be sure you have the
correct safety decals for the implement.
2. Keep these signs clean so they can be observed
readily. It is important to keep these decals cleaned
more frequently than the implement. Wash with soap
and water or a cleaning solution as required.
3. Replace decals that become damaged or lost. Also,
be sure that any new implement components
installed during repair include decals which are
assigned to them by the manufacturer.
4. When applying decals to the implement, be sure to
clean the surface to remove any dirt or residue.
Where possible, sign placement should protect the
sign from abrasion, damage, or obstruction from
mud, dirt, oil etc.
DANGER
DANGER
Transporting Safety
1. Thoroughly read and understand all operating
procedures contained in this manual before
attempting to transport this implement.
2. It is the responsibility of the operator to
understand and comply with all federal, state,
and local requirements before transporting the
Disc.
3. When transporting the implement on road or
highway, use adequate warning symbols, reflectors,
lights, SIS, and slow moving vehicle signs as
required. Verify that all symbols and lights are clearly
visible and functioning before transporting. Transport
during daylight hours whenever possible. Slow
moving tractors and implements can create a hazard
when driven on public roads and can be difficult to
see especially at night.
4. Do not tow an implement that when fully loaded,
weighs more than 1.5 times the weight of the towing
vehicle. Never tow the implement with a motor
vehicle. Tow the implement only with a properly
ballasted tractor.
5. Use a locking-style hitch pin that properly fits the
tractor drawbar and the implement hitch. Lock the
tractor drawbar in the center position to prevent loss
of steering control.
Special notice - read and thoroughly understand
Caution means serious equipment or other
property damage can occur if instructions on this
label are not properly followed.
Warning means serious injury or death can occur
if safety measures or instructions on this label
are not properly followed.
Danger means a life-threatening situation exists.
Death can occur if safety measures or
instructions on this label are not properly
followed.

• Do not allow anyone to ride on the tractor or
implement. Riders could be struck by foreign
objects or thrown from the implement.
• Never allow children to operate equipment.
• Keep bystanders away from implement during
operation.

1-3
TABLE OF CONTENTS
6. Attach the safety chain to the tractor recommended
drawbar support. Provide only enough slack in the
chain for turning. Do not attach the safety chain to an
intermediate support. Safety chain must have rating
greater than the gross weight of the towed
implement(s). Replace the safety chain if it is worn or
damaged in any way.
7. Verify that all hydraulic hoses and electrical wiring
between the tractor and implement are safely routed
to avoid damage.
8. Check implement tire pressure for correct inflation.
Verify that lug nuts are properly torqued before
transporting.
9. Install all transport locks and pins before
transporting.
10. Never allow riders on the implement.
11. Maximum transport speed for the Disc is 20 mph,
regardless of the tractor capabilities.Excessive
speed may result in loss of control of the tractor and
implement, reduced braking, or failure of the
implement tires and/or structure. Slow down when
road surface conditions are poor or rough, or when
driving on inclines. Reduce speed when turning, on
curves and slopes, to avoid tipping. Equipment
altered other than the place of manufacture, may
further reduce the maximum transport speed.
12. Avoid overhead power lines. Serious injury or death
can result. Electrocution can occur without direct
contact. Know the transport height and width of the
implement before transporting. Attachments can
increase the height and width of the implement.
Attaching, Detaching, and Stor-
age
1. Do not stand between the tractor and implement
when attaching or detaching implement unless both
are not moving.
2. Block implement so it will not roll when unhitched
from the tractor.
3. Store in an area where children normally do not play.
Maintenance Safety
1. Understand the procedure before doing the work.
Use proper tools and equipment.
2. Make sure all moving parts have stopped.
3. Do not make adjustments or lubricate implement
while it is in motion.
4. Block the implement so it will not roll when working
on or under it to prevent injury.
5. Install hydraulic cylinder lockouts, or lower equipment
to the ground before servicing.
High Pressure Fluid Safety
1. Escaping fluid under pressure can be nearly invisible
and have enough force to penetrate the skin causing
serious injury. Use a piece of cardboard, rather than
hands, to search for suspected leaks.
2. Any fluid injected into the skin must be surgically
removed within a few hours or gangrene may result.
3. Avoid the hazard by relieving pressure before
disconnecting hydraulic lines.
Protective Equipment
1. Wear protective clothing and equipment.
2. Wear clothing and equipment appropriate for the job.
Avoid loose fitting clothing.
3. Because prolonged exposure to loud noise can
cause hearing impairment or hearing loss, wear
suitable hearing protection, such as earmuffs or
earplugs.
Chemical Safety
1. Agricultural chemicals can be dangerous. Improper
use can seriously injure persons, animals, plants, soil
and property.
2. Read chemical manufacture’s instructions and store
or dispose of unused chemicals as specified.
3. Handle chemicals with care and avoid inhaling
smoke from any type of chemical fire.
4. Store or dispose of unused chemicals as specified by
the chemical manufacturer.
Prepare for Emergencies
1. Keep a First Aid Kit and Fire Extinguisher handy.
2. Keep emergency numbers for doctor, ambulance,
hospital and fire department near the phone.

1-4 F-832-2307
TABLE OF CONTENTS
Tire Safety
1. Tire changing can be dangerous and should be
performed by trained personnel using correct tools
and equipment.
2. When inflating tires, use a clip-on chuck and
extension hose long enough to allow you to stand to
one side, not in front of or over the tire assembly. Use
a safety cage if available.
3. When removing and installing wheels use
wheel-handling equipment adequate for the weight
involved.
Safety Chain
1. Use a chain with a strength rating equal to or greater
than the gross weight of towed machinery, which is
10,100 pounds minimum in accordance with ASAE
S338.2 specifications. If two or more implements are
pulled in tandem, a larger chain may be required.
Chain capacity must be greater than the TOTAL
weight of all towed implements.
2. Additional safety chain should be used between each
implement.
3. Attach the chain to the tractor drawbar support or
specified anchor location. Allow only enough slack in
the chain to permit turning. The distance from hitch
pin to attachment point or intermediate support point
should not exceed 9 inches.
4. Replace the chain if any links or end fittings are
broken, stretched or damaged.
5. Do not use a safety chain for towing.

1-5
TABLE OF CONTENTS
Safety Decals and Reflectors
The 6231 Disc is equipped with all safety signs installed
for safe operation.
For you safety:
• Carefully read and follow safety sign directions.
• Keep the safety signs clean and visible.
• Replace damaged, missing, or illegible safety signs.
• Be sure any new equipment or repair parts include
safety signs.
P/N 8-573-010084
Warning: Before Operating
Front of hitch, 1st from left
QTY. 1
P/N 141597
Danger: Electrocution Hazard
Front of hitch, 2nd from left
QTY. 1
P/N 155523
Hose Identification
Front of hitch, 3rd from left
QTY. 1
New safety signs may be ordered from your Landoll
dealer. Refer to this section for parts and proper safety
sign placement.
To Install new safety signs:
1. Remove the old damaged safety sign if still present.
2. Clean placement area to remove any dirt or grease.
3. Remove backing from new safety sign.
4. Apply the safety sign starting from one end pressing
firmly and working across the safety sign being
careful not to create any air bubbles.
WARNING
8-573-010084
1. BEFORE OPERATING - STUDY OPERATORS MANUAL SAFETY
MESSAGES AND SAFE OPERATING PROCEDURES. READ SAFETY
SIGNS ON THIS MACHINE.
2. TRANSPORT ON PUBLIC ROADS - OBSERVE FEDERAL, STATE,
AND LOCAL REGULATIONS; DISPLAY SMV EMBLEM; ATTACH
PROPER STRENGTH IMPLEMENT SAFETY CHIAN; AND LIMIT
MAXIMUM SPEED TO 20mpg (32km/h)
3. LOWER OR BLOCK ALL ELEVATED COMPONENTS BEFORE SER-
VICING OR LEAVING THIS MACHINE.

1-6 F-832-2307
TABLE OF CONTENTS
P/N 144193
SIS 20MPH
Front of center frame, middle
QTY. 1
P/N 2-573-010037
Danger: Folding wing
Front side, center frame both sides
QTY. 2
P/N 2-573-010037
Danger: Folding wing
Back side, rear hinge plate, center frame, both sides
QTY. 2
P/N 528934
Yellow Reflector
Left front, center frame, both sides
QTY. 2
P
a
a
a

1-7
TABLE OF CONTENTS
P/N 528934
Yellow Reflector
Left front, amber light bracket, both sides
QTY. 2
P/N 528934
Yellow Reflector
Left rear, center frame, both sides
QTY. 2
PP/N 528938
Orange Reflector
Back side, light brackets, top, both sides
QTY. 2
P/N 528938
Orange Reflector
Back side, center frame, top, 6231-21’-29’ both sides
QTY. 2
P
a
a
a

1-8 F-832-2307
TABLE OF CONTENTS
P/N 528938
Orange Reflector
Back side, center frame, top, 6231-30’-36’ both sides
QTY. 2
P/N 528933
Red Reflector
Back side, light brackets, bottom, both sides
QTY. 2
PP/N 528933
Red Reflector
Back side, center frame, bottom, 6231-21’-29’ both sides
QTY. 2
P/N 528933
Red Reflector
Back side, center frame, bottom, 6231-30’-36’ both sides
QTY. 2
P
a
a
a

1-9
TABLE OF CONTENTS
P/N 224589
SIS 20 mile/h
Back side of SIS 20MPH mount plate
QTY. 1
P/N 70260977
SMV Emblem
Back side, SMV mount plate
QTY. 1
PP/N 528934
Yellow Reflector
Right side, rear tow hitch, both sides
QTY. 2
P
a
a
a

1-10 F-832-2307
TABLE OF CONTENTS
Table provided for general use.
NOTES:

F-832-2307 2-1
TABLE OF CONTENTS Chapter 2
Specifications
Introduction
This manual is compiled as a guide for owners and
operators of the 6231 Disc. Read it carefully so as to be
able to follow the suggestions made. Please take time to
understand the proper maintenance schedule and SAFE
operation of your equipment.
In the event that a new and inexperienced operator is
placed in charge of running the equipment, they should
read and understand, that part of the manual for proper
maintenance and SAFE operation, and to be trained in
regard by an experienced operator.
Owner Assistance
If customer service or repairs are needed, contact your
Landoll dealer. They have trained personnel, parts and
service equipment specially designed for Landoll
products. Your machine’s parts should only be replaced
with Landoll parts. Have the Serial Number and complete
Model Number available when ordering parts from your
Landoll dealer. See Figure 2-1
a
Figure 2-1: ID Plate
a
Warranty Registration
Be certain to register the machine Online registration at
www.landoll.com within 10 days of purchase or lease, in
order to be on file at Landoll and eligible for Warranty.
Take time to read and understand the Warranty for this
product, See Page 2-2 and See Page 2-3.
Landoll reserves the right to make changes and/or add
improvements to it’s products at any time without
obligation to previously manufactured equipment.
Please take time to complete the following information for
your personal reference, should you need to contact your
Dealer with questions or parts needs.
MODEL_____________________________________
SERIAL #____________________________________
DATE OF PURCHASE__________________________
DEALER NAME________________________________
We at Landoll wish to thank you for purchasing our
product. We have spent considerable time and effort to
research, design, test and develop this machine and are
confident it will serve you in the use for which it was
designed.
MODEL #
SERIAL #
MADE IN USA 1-573-010006
Landoll Company, LLC
Marysville, Kansas
www.landoll.com

2-2 F-832-2307
TABLE OF CONTENTS
LANDOLL TILLAGE PRODUCT THREE YEAR LIMITED WARRANTY
Landoll Company, LLC warrants each new serial numbered Whole Good Tillage product, when properly assembled,
adjusted, serviced, and normally operated, to be free from defects in materials and workmanship for a period of three
(3) years, unless otherwise noted, from the date of delivery. Date of delivery shall be the date the Dealer places the
product in the possession of the original retail purchaser, and must be confirmed by the Dealer submitting a properly
completed Landoll Company, LLC Warranty Registration Form to the Landoll Company, LLC Warranty Department.
Warranty starts the day the product is rented or leased. This limited warranty shall be transferable until the expiration
date.
Landoll Company, LLC shall repair, or at its option, replace any part(s) of the product determined, by Landoll Company,
LLC, to be defective. Landoll Company, LLC may request the return of part(s), freight prepaid via a carrier approved by
the Landoll Warranty Staff, to Landoll Company, LLC for further evaluation. If the part is determined to be defective,
Landoll Company, LLC will refund the freight charges incurred in returning the defective part(s), and will prepay
replacement part(s) freight charges.
This limited warranty requires pre-authorization by the Landoll Company, LLC Warranty Staff of any warranty related
utilization of components or labor, and is subject to specific exclusions and does not apply to any product which has
been: 1) subjected to or operated in a manner which, at any time, have exceeded the product design limits: 2) repaired
or altered outside our factory in any way so as, in the judgment of Landoll Company, LLC , to affect its stability or
reliability: 3) subject to misuse, negligence, accident, or has been operated in a manner expressly prohibited in the
instructions; or not operated in accordance with practices approved by Landoll Company, LLC . Operating the product
in soils containing rocks, stumps or obstructions may void the warranty in its entirety. Excessive acres, consistent with
nonseasonal very large farming operations, and, non-agricultural activities, may further limit the terms of this warranty.
The sole obligation of Landoll Company, LLC under this warranty shall be limited to repairing or replacing, at its option,
part(s) which shall be identified to Landoll Company, LLC by way of a pre-authorized Landoll Company, LLC e-mail
Warranty Claim Form Warranty, expressed or implied, will be denied on any product not properly registered with the
Landoll Company, LLC Warranty Department within ten (10) days of the first retail sale. As stated above, Landoll
Company, LLC Warranty Staff will identify components listed on a Warranty Claim required to be returned for further
analysis. All parts returned to Landoll Company, LLC must be shipped with a Return Materials Authorization (RMA)
provided by the Landoll Company, LLC Warranty Staff. Defective components must returned by the purchaser to Landoll
Company, LLC with transportation and freight charges prepaid within fifteen (15) days after receipt of the RMA. The
examination conducted by Landoll Company, LLC of returned parts shall disclose to its satisfaction the extent the
component may be detective.
All parts and labor warranty MUST be pre-authorized by Landoll Company, LLC Warranty Staff. Failure to do so may
result in no warranty payment of any kind. Labor will be reimbursed in accordance with published shop rates
pre-approved by the Landoll Company, LLC Warranty Staff. Time authorized for specific work will be limited, where
appropriate, to the hours listed in the Landoll Company, LLC authorized Labor Rate Guide.
®

2-3
TABLE OF CONTENTS
LANDOLL TILLAGE PRODUCT THREE YEAR LIMITED WARRANTY (Continued)
USER'S OBLIGATION:
1. Read the Operator's Manual
2. Understand the safe and correct operating procedures pertaining to the operation of the product.
3. Lubricate and maintain the product according to the maintenance schedule in the Operator's Manual.
4. Inspect machine and have parts repaired or replaced when continued use of the produce would cause damage or
excessive wear to other parts.
5. Contact the Landoll Company, LLC Dealer for repair or replacement of defective parts. Mileage incurred by the
Landoll Company, LLC Dealer is the customer's responsibility.
This 3-Year Limited Warranty SHALL NOT APPLY TO:
(See Warranty Procedure Manual for details.)
1. Ground Engaging Tools
2. Vendor Warranty Only Parts
WARRANTY LABOR:
1. Considered during the first year of warranty only.
2. During the second and third year:
• Warranty labor is not covered. Customer is responsible for removing, replacing and returning the defective
part(s) to the Landoll Dealer
THIS WARRANTY IS EXPRESSIVELY IN LIEU OF ALL OTHER WARRANTIES OF MATERIAL, WORKMANSHIP,
DESIGN, APPLICATION OR OTHERWISE WITH RESPECT TO ANY EQUIPMENT, WHETHER EXPRESS, IMPLIED
OR STATUTORY, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, AND LANDOLL COMPANY, LLC SHALL NOT BE LIABLE FOR SPECIAL OR CONSEQUENTIAL
DAMAGES OF ANY KIND ON ACCOUNT OF ANY LANDOLL PRODUCT.
NO EMPLOYEE OR REPRESENTATIVE IS AUTHORIZED TO CHANGE THIS WARRANTY, VERBALLY OR IN
WRITING, OR GRANT ANY OTHER WARRANTY. LANDOLL COMPANY, LLC, WHOSE POLICY IS ONE OF
CONTINUOUS IMPROVEMENT, RESERVES THE RIGHT TO MAKE CHANGES WITHOUT OBLIGATION TO
MODIFY PREVIOUSLY PRODUCED EQUIPMENT.
This warranty does not expand, enlarge upon or alter in any way, the warranties provided by the original manufacturers
and suppliers of component parts and accessories. This warranty excludes such parts or accessories which are not
defective, but may wear out and have to be replaced during the warranty period, including, but not limited to, light bulbs,
paint, and the like. (Tire Warranties are expressly excluded from Landoll Company, LLC warranty herein.) Purchaser is
expected to pay all repairs or replacement costs, in connection with this Agreement, including sales and other taxes
immediately upon completion of work performed.
LIMITATION OF LIABILITY: Landoll Company, LLC shall not be liable to purchaser for any incidental or consequential
damages suffered by the purchaser, including, but not limited to, any commercially reasonable charges, expenses or
commissions incurred in connection with effecting cover or any other reasonable expense incident to the delay or other
breach of warranty by Landoll Company, LLC, loss of anticipated profits, transportation expenses due to repairs,
non-operation or increased expense of operation costs of purchased or replaced equipment, claim of customers, cost
of money, any loss of use of capital or revenue, equipment rental, service trips, or for any special damage or loss of any
nature arising at any time or from any cause whatsoever.
LIMITATION OF REMEDY: In the event of Landoll Company, LLC failure to repair the product subject to the warranty
contained herein, the purchaser's sole and exclusive remedy against Landoll Company, LLC shall be for the repair or
replacement of any defective part or parts of the product subject to work or repair within the time period and manner set
forth herein.
This exclusive remedy shall not be deemed to have failed of its essential purpose so long as Landoll Company, LLC is
willing and able to repair or replace defective parts in the prescribed manner.

2-4 F-832-2307
TABLE OF CONTENTS
General Torque Specifications (rev. 4/97)
Table 2-1: General Torque Specifications
TORQUE SPECIFIED IN FOOT POUNDS
This chart provides tightening torques for general purpose applications when special torques are not specified on
process or drawing. Assembly torques apply to plated nuts and cap-screws assembled without supplemental
lubrication (as received condition). They do not apply if special graphite moly-disulfide or other extreme pressure
lubricants are used. When fasteners are dry (solvent cleaned) add 33% to as received condition torque. Bolt head
identification marks indicate grade and may vary from manufacturer to manufacturer. Thick nuts must be used on
grade 8 cap-screws. Use value in [ ] if using prevailing torque nuts.
UNC
SIZE
SAE
Grade 2
SAE
Grade 5
SAE
Grade 8
UNF
SIZE
SAE
Grade 2
SAE
Grade 5
SAE
Grade 8
1/4-20 4 [5] 6 [7] 9 [11] 1/4-28 5 [6] 7 [9] 10 [12]
5/16-18 8 [10] 13 [13] 18 [22] 5/16-24 9 [11] 14 [17] 20 [25]
3/8-16 15 [19] 23 [29] 35 [42] 3/8-24 17 [21] 25 [31] 35 [44]
7/16-14 24 [30] 35 [43] 55 [62] 7/16-20 27 [34] 40 [50] 60 [75]
1/2-13 35 [43] 55 [62] 80 [100] 1/2-20 40 [50] 65 [81] 90 [112]
9/16-12 55 [62] 80 [100] 110 [137] 9/16-18 60 [75] 90 [112] 130 [162]
5/8-11 75 [94] 110 [137] 170 [212] 5/8-18 85 [106] 130 [162] 180 [225]
3/4-10 130 [162] 200 [250] 280 [350] 3/4-16 150 [188] 220 [275] 320 [400]
7/8-9 125 [156] 320 [400] 460 [575] 7/8-14 140 [175] 360 [450] 500 [625]
1-8 190 [237] 480 [506] 680 [850] 1-14 210 [263] 540 [675] 760 [950]
1-1/8-7 270 [337] 600 [750] 960 [1200] 1-1/8-12 300 [375] 660 [825] 1080 [1350]
1-1/4-7 380 [475] 840 [1050 1426 [1782] 1-1/4-12 420 [525] 920 [1150] 1500 [1875]
1-3/8-6 490 [612] 1010 [1375] 1780 [2225] 1-3/8-12 560 [700] 1260 [1575] 2010 [2512]
1-1/2-6 650 [812] 1460 [1825] 2360 [2950] 1-1/2-12 730 [912] 1640 [2050] 2660 [3325]
1-3/4-5 736 [920] 1651 [2063] 2678 [3347] 1-3/4-12 920 [1150] 2063 [2579] 3347 [4183]
METRIC:
Coarse thread metric class 10.9 fasteners and class 10.0 nuts and through hardened flat washers, phosphate
coated, Rockwell “C” 38-45. Use value in [ ] if using prevailing torque nuts.
Nominal
thread
diameter
(mm)
Newton
Meters
(Standard
Torque)
Foot Pounds
(Standard
Torque)
Nominal
Thread
Diameter
(mm)
Newton
Meters
(Standard
Torque)
Foot Pounds
(Standard
Torque
6 10 [14] 7 [10] 20 385 [450] 290 [335]
7 16 [22] 12 [16] 24 670 [775] 500 [625]
8 23 [32] 17 [24] 27 980 [1105] 730 [825]
10 46 [60] 34 [47] 30 1330 [1470] 990 [1090]
12 80 [125] 60 [75] 33 1790 [1950] 1340 [1450]
14 125 [155] 90 [115] 36 2325 [2515] 1730 [1870]
16 200 [240] 150 [180] 39 3010 [3210] 2240 [2380]
18 275 [330] 205 [245] --------------- --------------- ---------------