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LasTec Articulator
Model 721X
Owner's Manual
Manual Part Number: Man-721X
LasTec
A Division of Wood-Mizer Products, Inc.
7865 N County Rd 100E
Lizton, Indiana 46149
Phone (317) 892-4444 Fax (317) 892-4188
www.lastec.com
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Table Of Contents
To The Owner Chapter 1
Read This Manual In Its Entirety Before Operating The Articulator! 1-1
Warning Symbols 1-1
Servicing the Articulator 1-3
Specifications 1-5
Safety Information Chapter 2
Safety Information 2-1
Training 2-2
Preparations 2-2
Operational Safety 2-3
Maintenance Safety 2-5
Storing Safety 2-6
Assembly Instructions Chapter 3
Assembly Instructions 3-1
Initial Set-Up Chapter 4
Application 4-1
Mounting the Articulator to the Tractor 4-1
Pull Arm Adjustment 4-3
PTO Shaft Range Verification 4-5
Mower Deck Height Adjustment 4-7
Swivel Wheel Legs 4-7
Gauging the Mower Deck Height Using the Turnbuckles 4-7
Gauging the Mower Deck Height Using the Wheel Height Gauge 4-8
Calibrating the Mower Deck Height 4-9
Anti-Scalp Wheel Adjustment 4-10
Deck Belt Tension Adjustment 4-11
Lift Arm Tension Adjustment 4-13
Lifting and Transporting Chapter 5
Hydraulic Lift Unit 5-1
Lift Unit Safety Information 5-1
Lift Unit Operation: Raising the Mower Decks 5-3
Lift Unit Operation: Lowering the Mower Decks 5-5
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Table Of Contents Continued
Operating Procedures Chapter 6
Preparation for Cutting 6-1
Ground Speed 6-2
Cutting in Reverse 6-2
Cutting Severe Contours 6-2
Cutting Wet Grass 6-2
Maneuvering in Tight Areas 6-2
Trimming Around Objects 6-3
Maintenance Chapter 7
Initial Break-In Period 7-1
Every 8 Operating Hours 7-3
Every 25 Operating Hours 7-5
Every 50 Operating Hours 7-5
Every 500 Operating Hours 7-7
Annual Maintenance 7-7
Maintenance Chart 7-9
Warranty Chapter 8
Warranty 8-1
Warranty Registration Form 8-3
Delivery Checklists Chapter 9
Pre-Delivery Checklist 9-1
Delivery Checklist 9-1
Parts Manual Chapter 10
Parts Manual 10-1
How To Use This Parts Manual 10-3
Index of Parts and Illustrations listed by part number 10-5
Index of Parts and Illustrations listed by part description 10-9
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1-1
Chapter One To the Owner:
Read This Manual In Its Entirety Before Operating The
Articulator!
The information presented herein will prepare you do to a better, safer job. Keep this manual at
hand for ready reference. The designed and tested safety of this machine is dependent upon its
operation within the limitations as explained in this manual. Follow all safety rules in this
manual, both on the Articulator and on the tractor.
Warning Symbols
Throughout this manual, the following symbols are presented to indicate important safety
information. When one or both of these symbols are displayed, be aware of the potential for
damage to equipment and/or serious personal injury if the accompanying instructions or
procedures are not followed:
THIS SYMBOL DENOTES A POTENTIAL EQUIPMENT HAZARD
Failing to follow the instructions or procedures may result in equipment malfunction or damage.
THIS SYMBOL DENOTES A SERIOUS PERSONAL SAFETY HAZARD
Failing to follow the instructions or procedures may result in equipment malfunction or damage,
serious personal injury, or even fatal injury.
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1-3
Servicing The Articulator
The Articulator is carefully engineered and manufactured to provide safe, dependable, and
satisfactory service. As with all other mechanical equipment, it requires routine cleaning and
maintenance.
Your authorized LasTec dealer has trained mechanics, genuine LasTec parts, and the tools and
equipment needed to handle all of your service requirements. Use only genuine LasTec service
parts. Substitute parts will void the warranty and may not meet the standards required for safe
and satisfactory operation of the Articulator. Immediately record the model and serial numbers of
your Articulator in the spaces provided below. Provide this information to your dealer when
ordering parts to avoid obtaining incorrect replacement parts for the serial number series of the
Articulator:
Model Number:
Serial Number:
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Specifications
Model 721X Articulator Specifications
Mower Deck Configuration (7) 21” (51 cm) Articulating Mower Decks
Drive Gearbox Through Belts
Gearbox Oil 28-29 Oz. SAE 80W-90 Grade Gear Oil
P.T.O. Horsepower Min 35 / Max 42
Transport Width 100” (254 cm)
Overall Width 134” (341 cm)
Cutting Width 124” (315 cm)
Blade Tip Speed 17,500 FPM / 2,800 RPM
Blades 21” x 2.5” x .25” (51 cm x 6.5 cm x 5mm)
Sound Pressure Level < 70 dB (a)
Mower Deck Height Range 1” - 4 3/4” (25 mm - 121 mm)
Weight 1250 lb. (566 kg)
Operating Environment Outdoor Use Only
Tire Diameters 16.5”, 13”, 9” (42 cm, 33 cm, 23 cm)
Pneumatic Tire Pressure 45 PSI
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2-1
Chapter Two Safety Information
The purpose of this manual is to assist you in operating and maintaining the LasTec Articulator.
Read it carefully. It furnishes information and instructions which will help you enjoy years of
dependable performance from the Articulator. These instructions are compiled from extensive
field experience and engineering data. Some information may be general in nature due to
unknown and varying operating conditions. However, these instructions, coupled with your
increasing experience with the Articulator, will enable you to develop procedures suitable to your
particular situation.
The illustrations and data used in this manual were current at the time of printing, but the
Articulator may vary slightly due to possible in-line production changes. We reserve the right to
redesign and change the Articulator as may be necessary without notification.
Some illustrations in this manual show the Articulator with safety guards removed in order to
provide a better view. This is for informational purposes only -- never operate the Articulator
with any of the safety guards removed!
NEVER OPERATE THE ARTICULATOR WITH ANY SAFETY
GUARDS REMOVED!!
WORK SAFELY! FOLLOW ALL SAFETY RULES! A CAREFUL
OPERATOR IS THE BEST INSURANCE AGAINST ACCIDENTS!
Throughout this manual, we make references to right and left directions. We determine right and
left while standing behind the Articulator and facing in the direction of forward travel. Blade
rotation is clockwise as viewed from the top of the Articulator.
Safety is a primary concern in the design and manufacture of our products. Unfortunately, our
extensive efforts to provide safe equipment can be wiped out by a single careless act of an
operator. In addition to the design and configuration of the Articulator, hazard control and
accident prevention are also dependent upon the awareness, concern, prudence and proper
training of all personnel involved in the operation, transportation, maintenance, and storage of
equipment.
THE BEST SAFETY DEVICE IS AN INFORMED, CAREFUL OPERATOR! We ask you
to be that kind of operator.
SAFETY INSTRUCTIONS ARE IMPORTANT! READ ALL SAFETY
RULES IN THIS MANUAL AS WELL AS ALL SAFETY RULES IN
THE TRACTOR MANUAL!
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The designed and tested safety of the Articulator is dependent upon its operation within the
limitations as explained in this manual. Be familiar with and follow all safety rules in this
manual as well all safety rules in the tractor manual.
Training
KNOW YOUR CONTROLS AND HOW TO STOP THE TRACTOR
ENGINE AND THE ARTICULATOR QUICKLY IN AN EMERGENCY!
READ THIS ENTIRE MANUAL AS WELL AS ANY MANUALS
PROVIDED WITH THE TRACTOR!
DO NOT ALLOW ANYONE TO OPERATE THE ARTICULATOR
WITHOUT PROPER INSTRUCTION! ANY AND ALL OPERATORS
MUST BE INSTRUCTED IN AND CAPABLE OF THE SAFE
OPERATION OF THE ARTICULATOR, ITS ATTACHMENTS, AND
ALL CONTROLS!
NEVER ALLOW CHILDREN TO OPERATE THE ARTICULATOR!!
NEVER ALLOW CHILDREN ON OR NEAR THE ARTICULATOR!!
ALWAYS CLEAR AREA OF ALL PERSONNEL BEFORE
OPERATING THE ARTICULATOR!!
Preparations
• Always wear relatively tight and belted clothing to avoid entanglement in moving parts.
Wear sturdy rough-soled work shoes, as well as protective equipment for the eyes, hands,
hearing and head. Never operate the tractor or implements in bare feet, sandals, or
sneakers.
• Clear the cut area of any stones, branches or other debris that may be thrown and cause
injury or damage.
• Operate only in daylight or good artificial light.
• Verify that all safety decals are properly installed, visible, and intelligible.
• Always remove accumulated debris from the tractor and Articulator to avoid a fire hazard.
• Verify that the Articulator is properly mounted, adjusted, and in good operating condition.
• Always perform the appropriate maintenance schedule (chapter 9) BEFORE operating the
Articulator.
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A minimum of 20% of the tractor and equipment weight must be on the tractor front wheels with
the Articulator in transport position. Without this weight, the tractor may tip over, causing
serious personal injury or even fatality. Attain this weight with front wheel weights, ballast in the
front tires, or front end weights.
MAINTAIN A MINIMUM OF 20% OF THE TRACTOR AND
EQUIPMENT WEIGHT ON THE FRONT WHEELS OF THE
TRACTOR TO AVOID TIPPING OVER!
DO NOT EXCEED THE ROPS WEIGHT CERTIFICATION! WEIGH
THE TRACTOR AND EQUIPMENT, DO NOT GUESS OR ESTIMATE!
Operational Safety
WORK SAFELY! FOLLOW ALL RULES!
A CAREFUL OPERATOR IS THE BEST INSURANCE AGAINST
ACCIDENTS
CLEAR AREA OF ALL PERSONNEL BEFORE OPERATING THE
ARTICULATOR!
NEVER ALLOW ANYONE INTO THE PATH OF DISCHARGE!
NEVER DISCHARGE IN THE DIRECTION OF BYSTANDERS!
NEVER ALLOW CHILDREN TO OPERATE THE ARTICULATOR!!
NEVER ALLOW CHILDREN ON OR NEAR THE ARTICULATOR!!
ALWAYS CLEAR AREA OF ALL CHILDREN BEFORE OPERATING
THE ARTICULATOR!!
• If the tractor is equipped with a Roll Over Protection Structure (ROPS), you must wear
your seat belt.
• Never permit any person other than the operator to ride or board the tractor or Articulator at
any time. NEVER ALLOW RIDERS!
• Never allow anyone in front or behind the Articulator while operating. BE SURE THAT
THE AREA BEHIND YOU IS CLEAR BEFORE OPERATING IN REVERSE!
• Do not stop or start suddenly when going up or down a hill. Avoid operating on steep
slopes.
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• Use extreme care and maintain minimum ground speed when transporting on a hillside or
over rough ground, and when operating close to ditches or fences.
• Reduce speed on slopes and in sharp turns to minimize potential tipping or loss of control.
Be careful when changing directions on slopes.
• Be alert for holes in the terrain as well as any other hidden hazard. Always drive slowly
over rough ground.
• Disengage the power take-off (PTO), stop the engine and remove the key before
dismounting the tractor, making any adjustments, or disconnecting the Articulator.
• Stop the Articulator and tractor immediately upon striking any obstruction. Turn off the
engine, remove the key, and inspect the Articulator for and repair any damage before
resuming operation. Before making any repairs underneath the Articulator, lock it into
transport position with a safety chain or strap securely in place.
• NEVER operate the PTO while transporting the Articulator.
• NEVER lift the mower decks while the PTO is engaged.
• NEVER engage the PTO with the mower decks raised.
• Never place your hands or feet under the Articulator while the tractor engine is running.
Turn off the engine, remove the key, set the parking brake, and be sure that all motion has
stopped.
• Stay clear of all moving parts.
• Keep hands and feet away from the blades.
• Take all possible precautions when leaving the tractor and Articulator unattended.
DISENGAGE THE PTO, LOWER THE ARTICULATOR TO THE GROUND, SHIFT
THE TRACTOR INTO NEUTRAL, SET THE PARKING BRAKE, STOP THE ENGINE,
AND REMOVE THE KEY!
NEVER OPERATE THE ARTICULATOR WITHOUT ALL SAFETY
GUARDS IN PLACE AND IN GOOD CONDITION!
NEVER LIFT THE OUTER MOWER DECKS WHILE THE PTO IS
ENGAGED!
NEVER ENGAGE THE PTO WITH THE OUTER DECKS RAISED!
NEVER EXCEED TRACTOR MANUFACTURER’S RATED ENGINE
SPEED!
Maintenance Safety
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2-5
DISENGAGE THE PTO, TURN OFF THE TRACTOR, SET THE
PARKING BRAKE, REMOVE THE KEY, AND SECURELY BLOCK UP
THE ARTICULATOR WITH JACK STANDS BEFORE PERFORMING
ANY SERVICE OR MAINTENANCE!
NEVER ALLOW CHILDREN TO OPERATE THE ARTICULATOR!!
NEVER ALLOW CHILDREN ON OR NEAR THE ARTICULATOR!!
ALWAYS CLEAR AREA OF ALL CHILDREN BEFORE
PERFORMING MAINTENANCE ON OR ADJUSTMENTS TO THE
ARTICULATOR!!
• Never allow anyone near the operator controls while performing adjustments, service or
maintenance.
• Always use personal protection equipment such as eye, hand, head, and ear protection
when performing any service or maintenance.
• Keep tractor engine free of debris and excess grease to reduce fire hazard.
• Do not change the engine governor settings or over-speed the engine.
• Keep the tractor and Articulator in good operating condition with all safety devices in
place.
• Check the blades frequently. Verify that they are sharp, free of nicks and cracks, and
securely fastened.
• Periodically tighten all bolts, nuts and screws and check that all fasteners are properly
installed to ensure that the Articulator is in safe operating condition.
• Upon completing any maintenance or service function, verify that all safety guards and
devices are properly installed before operating the Articulator
• Verify that all warning labels and decals are properly installed, visible, and legible.
• Remove debris from underneath the Articulator after each use.
Storing Safety
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NEVER RUN ANY ENGINE INDOORS! EXHAUST GASSES
CONTAIN CARBON MONOXIDE, AN ODORLESS AND DEADLY
POISON!
NEVER STORE THE ARTICULATOR IN ANY AREA ACCESSABLE
BY CHILDREN!
Never store equipment with fuel in the tank inside a building where fumes could reach an open
flame or spark. Allow the engine to cool before storing in an inside enclosure. Remove all
accumulated debris from both the top and bottom of the Articulator. Sand chipped or scratched
areas and re-paint them to prevent rust. Lubricate the Articulator to prevent rust during storage.
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Chapter Three Assembly Instructions
DO NOT ATTEMPT TO MOUNT THE ARTICULATOR TO THE
TRACTOR UNTIL ALL OF THE FOLLOWING PROCEDURES ARE
COMPLETED! DAMAGE TO EQUIPMENT, PERSONAL INJURY, OR
FATAL INJURY CAN RESULT!
1. Check the gearbox oil level. The gearbox requires 28-29 oz. of SAE 80W-90 grade gear
oil.
2. The proper oil level should just reach the plug hole located on the side of the gearbox. Refer
to Fig. XM-2.01, Reference Number (12).
3. Mount the lift pins into the pull arms. Secure with 7/8” split lock washers and 7/8-14 hex
nuts. Refer to Fig. XM-1.01, Reference Number (5).
4. Insert the bronze bushings into the pull arms and pull bar. Insert two 1” bushings into
the collars located on the ends of the pull arms, a 1” bushing with 1/4" spacer into each ball
swivel located on the tops of the pull arms, and four 3/4” bushings into the upper holes in the
plates located on each side of the pull bar. Refer to Fig. XM-1.01, Reference Numbers (8),
(9) and (12).
5. Mount the pull arm assemblies onto the pull bar. Insert 1” x 4 1/2” clevis pins, secure
with 1/4” lynch pins. Refer to Fig. XM-1.01, Reference Numbers (6) and (11).
6. Slide the weight transfer springs onto the weight transfer rods. Refer to Fig. XM-1.01,
Reference Numbers (3) and (4).
7. Mount the weight transfer assemblies to the pull arms and the pull bar. Slide the long
end of the weight transfer rods into the ball swivels located on the tops of the pull arms, then
slide the short end into the holes located on either side of the pull bar. Secure with 3/16”
lynch pins. Refer to Fig. XM-1.01, Reference Number (3).
8. Prepare to remove the chain or strap from the outside mower decks which are shipped
in folded position. Position one person beside each folded mower deck. Have them push in
on the folded decks simultaneously, relieving the tension on the chain or strap. While the
tension is relieved, remove the chain or strap from each of the folded decks. CAREFULLY
lower both decks to the ground.
9. Install the two anti-scalp wheels to decks X4 and X5. Refer to Fig. XM-4.10.
10. Affix the two “Outer Decks” warning decals (located in the front folder of this manual)
to each of the rear fenders of the tractor, preferably near the operating controls.
11. Assembly of the Articulator is now complete.
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