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Lastec 721XRT Owner's Manual

Articulator
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Lastec Articulator
Model 721XRT
Owner's Manual
Manual Part #: Man-721XRT

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Summary of Contents for Lastec 721XRT

  • Page 1 Lastec Articulator Model 721XRT Owner’s Manual Manual Part #: Man-721XRT...
  • Page 2 © Lastec Printed in the United States of America, all rights reserved. No part of this manual may be reproduced in any form by any photographic, electronic, mechanical or other means or used in any information storage and retrieval system without written permission from Lastec, LLC 8180 W.

  • Page 3: Table Of Contents

    Read This Manual BEFORE Operating The Articulator .......... 1-2 Product Registration ....................1-3 If You Need To Order Parts ..................1-3 Lastec Product Warranty ................... 1-4 Component Manufacturers’ Warranties ..............1-6 Servicing The Articulator ..................1-6 Warranty Registration ....................1-7...
  • Page 4 First 50 Hours ......................5-4 Every 50 Operating Hours..................5-4 Every 200 Operating Hours..................5-4 Every 500 Operating Hours..................5-4 Annual ........................5-5 Articulator Specifications, 521XR/721XR/721XRT..........5-6 5.10 Articulator Maintenance Chart, 721XR/721XRT ............. 5-7 5.11 Torque Values ......................5-8 Table of Contents Lastec//021819...

  • Page 5: To The Owner

    SECTION 1 TO THE OWNER Lastec//021819...

  • Page 6: Read This Manual Before Operating The Articulator

    Keep this manual at hand at all times for ready reference. The designed and tested safety of the Articulator is dependent upon its operation within the guidelines and limitations out- lined in this manual. Always adhere to all the safety rules presented in this manual. Lastec//021819 To The Owner...

  • Page 7: Product Registration

    These numbers can be found on the serial number plate which is permanently affixed to the mower. You should now fill out the warranty registration form online at www.lastec.com or located in the back of this section. This form must be completed and returned to the fac- tory within fifteen (15) days of purchase in order to validate the warranty.

  • Page 8: Lastec Product Warranty

    Lastec Product Warranty LASTEC LIMITED GOLF & TURF WARRANTY Lastec (“warrantor”), with its place of business at 8180 W. 10th Street, Indianapolis, IN 46214 war- rants as stated herein to the original purchaser (“purchaser”) for two (2) years or 2000 hours* of equipment use, whichever comes first, on parts and one (1) year of labor for equipment use from the date of purchase from Lastec (“warrantor”), that the equipment manufactured by warrantor and...
  • Page 9 Warranty Parts Return Lastec reserves the right to have parts returned that have been submitted for warranty. The ser- vice department will issue an RMA number. The part must be returned within 30 days of the requested return date. Parts not returned within 30 days of the RMA issue date will result in rejec- tion of claim.

  • Page 10: Component Manufacturers' Warranties

    Lastec parts, and has trained mechanics on hand. Be sure to complete the following Lastec Warranty Registration Form and return to Lastec within 15 days of the purchase of the Articulator. This will aid you, Lastec, and Lastec dis- tributor in warranting and servicing of your Articulator.

  • Page 11: Warranty Registration

    How did you hear about Lastec? Who referred you to Lastec? Who was the salesman that assisted you? Please check the box to your left if you would not allow Lastec to use your company's name for marketing purposes. To The Owner Lastec//021819...

  • Page 13: Safety Information

    Safety Information SECTION 2 SAFETY INFORMATION Safety Information Lastec//021819...

  • Page 14: Warning Symbols

    Safety Decals and Symbols The following safety symbols are used on the deck. Operators should become familiar with these symbols and heed the warnings where they appear on the deck. Attention! Pinching/Crushing Danger! Lastec//021819 Safety Information...
  • Page 15 Safety Information Safety Decals and Symbols Caution! Rotating Blades! Keep Hands and Feet Away from Blades! Keep Covers Locked Down Pinch Point! Read the Manual! Remove the Key! Rotating Parts! Rotating Shaft! Stay Away! Thrown Objects! Safety Information Lastec//021819...

  • Page 16: About This Manual

    The illustrations and data used in this manual were current at the time of printing, but the deck may vary slightly due to ongoing engineering changes. Lastec reserves the right to implement engineering and design changes to the deck as may be necessary without prior notification.

  • Page 17: Safety Guards And Covers

    Safety is a primary concern in the design and manufacture of all Lastec products. Unfor- tunately, our extensive efforts to provide safe equipment can be negated by a single care- less act of an operator.

  • Page 18: Preoperational Safety Rules

    Verify that the deck is properly mounted, set up, adjusted, and in good operating  condition. Always perform the pre-operation equipment inspection and the appropriate mainte-  nance schedule (Section 5) before operating the deck. Do not change the engine governor settings or over-speed the engine.  Lastec//021819 Safety Information...

  • Page 19: Operational Safety Rules

    Be sure that all auxiliary equipment switches (blades, lights, etc.) are in the OFF  position before attempting to start the engine. Be sure your drive unit is equipped with a ROPS (Roll Over Protection System), and  be sure to wear your seat belt. Safety Information Lastec//021819...
  • Page 20 Never adjust the mower deck height or lift the deck into transport position while the  blades are engaged. Never engage the blades with the mower decks raised into transport position.  Never place your hands or feet under the deck while the engine is running.  Lastec//021819 Safety Information...
  • Page 21 Do not allow extended running of drive unit engine indoors - exhaust fumes are  deadly. Safety Information Lastec//021819...

  • Page 22: Maintenance Safety Rules

    Verify that all warning labels and decals are properly installed, visible, and legible.  Always remove debris from the top and bottom of the deck after each use.  2-10 Lastec//021819 Safety Information...

  • Page 23: Storage Safety Rules

    Remove all accumulated debris from the drive unit, and both the top and bottom of  the deck before storing. Sand chipped or scratched areas and re-paint them to prevent rust during storage.  Lubricate all moving parts of the drive unit and deck to prevent rust during storage.  Safety Information Lastec//021819 2-11...

  • Page 24: Hazard Identified Chart

    Danger of projectile strike Ejected debris from cutting blades Warning decals. Clear warning in manual. Physical guards around blades. Finger pinch points Moving parts Warning decals stating hazardous locations. Physical guards around such points. Clear warning in manual. 2-12 Lastec//021819 Safety Information...

  • Page 25: Initial Set-Up

    SECTION 3 INITIAL SET-UP Lastec//021819...

  • Page 26: Assembly Instructions

    Assembly Instructions Assembly Instructions The Model 721XRT requires a minimum amount of assembly prior to mounting to the tractor. Follow the procedures listed below to assemble the Articulator: 1. Mount the tow arm to the Articulator pull bar as shown below. NOTE: Use the jack in the storage/mount position to help with the installation, if necessary.
  • Page 27 4. Connect all the hydraulic hoses to the hydraulic cylinders as shown below. 028368 Hose Assembly 1/4 x 36-7/8” Hydro 100” EXTEND (TRANSPORT 80” POSITION) 36-7/8” 42-7/8” RETRACT (MOW POSITION) 028369 Hose Assembly 1/4 x 42-7/8” Hydro 721_074-2B Initial Set-Up Lastec//021819...

  • Page 28: Mounting The Articulator To The Tractor

    Danger The Model 721XRT Articulator can be mounted to most tractors which have a draw bar tongue hitch. Follow the procedures listed below to properly mount the Articulator to the tractor: 1.
  • Page 29 Initial Set-Up Mounting The Articulator To The Tractor NOTE: Lastec offers two 20” draw bars that can be used to mount the tow arm to the trac- tor. See below for draw bar part numbers and specifications: 107667, Draw Bar, 1 1/4” x 20”...
  • Page 30 2” clearance between the tractor tire and the Articula- tor tow arm. Max. 80 Max. 80 721_071-1B 6. Complete the entire Initial Set-Up section of this manual before attempting to operate the Articulator. Lastec//021819 Initial Set-Up...

  • Page 31: Hose Spring Installation

    Articulator headed up the other side, at the point where the PTO shaft spans the crest of the mount with the tractor and Articulator at their furthest point from one another. This should represent your maximum PTO shaft extension. Initial Set-Up Lastec//021819...

  • Page 32: Gearbox

    Add oil if low. If the oil appears excessively contaminated, change the oil. Use SAE 80W-90 grade gear oil. Inspect the entire area around and under the gearbox for any oil leakage. If a leak is dis- covered, repair it and refill the gearbox before operating the Articulator. Lastec//021819 Initial Set-Up...

  • Page 33: Mower Deck Leveling Adjustment

    Initial Set-Up Mower Deck Leveling Adjustment Mower Deck Leveling Adjustment The 721XRT Articulator mowing decks come leveled from the Lastec factory. Should deck leveling be necessary due to shipping, usage, or maintenance, the following procedure can re-level the decks as needed.
  • Page 34 Spacers on the wheel yoke assembly may be rearranged to accommodate the new tire. See Section 5 Wheels of the 721XRT Parts Manual for the correct spacer for the yoke of the new tire. Additional or replacement spacers may be obtained from your Lastec dealer.

  • Page 35: Mower Deck Height Adjustment

    Never adjust the mower deck height with the tractor running or the PTO engaged.  The Model 721XRT Articulator can be set to various heights ranging from 1" to 4 3/4". Change the mower deck height at all the wheel locations by moving the wheel spacers from above to below each wheel yoke collar on each wheel yoke shaft.

  • Page 36: Deck Drive Belts

    The deck drive belts are located between the gearbox and the center mower deck, under the center deck belt cover. To access the belts, remove the hardware and lift the cover from the deck. The spring-loaded idler automatically tensions the belts. 3-12 Lastec//021819 Initial Set-Up...

  • Page 37: Deck Belts And Alignment

    Contact your Lastec distributor for the proper belt lengths for your Articulator. Be sure that the idler tensioning spring is properly installed and in good condition. If for some reason this spring becomes loose, detached, or fatigued, the idler will not properly tension the belts.
  • Page 38 7. Clean each entire deck area (under the belt covers) of all excess grease, oil, fuel, grass, or debris before operating the Articulator. This will help prevent damage to the equip- ment, fire hazard, and projectile hazards. 8. Be sure to replace all belt covers and hardware. 3-14 Lastec//021819 Initial Set-Up...

  • Page 39: Blades

     forming maintenance to the blades! The Model 721XRT Articulator utilizes seven individual 21” high-lift blades, located under each articulated mower deck. NEVER go near, or expose yourself or others in any way to the blades while the engine is...

  • Page 40: Gauge Wheels

    Check that the discharge chute is clear of debris, properly mounted, and in good condi- tion. Inspect entire Articulator for loose or entangled parts, debris, obstructions, neglected tools, or any other possible safety hazards, equipment hazards or projectile hazards. 3-16 Lastec//021819 Initial Set-Up...

  • Page 41: Pre-Operation Equipment Inspection Checklist

     Inspect entire Articulator for loose or entangled parts, debris, obstructions, or neglected tools.  Perform all safety, set-up, and pre-operation procedures listed in your tractor manual.  Complete the appropriate maintenance checklist (section 5).  Initial Set-Up Lastec//021819 3-17...

  • Page 43: Operating Procedures

    SECTION 4 OPERATING PROCEDURES Lastec//021819...

  • Page 44: Transporting The Articulator

    Danger The Model 721XR/521XR/721XRT Articulator uses hydraulics to lower the rear wheels, lift the decks, and fold up the two outside decks(721XR/721XRT only), allowing easy transportation. This feature has many other benefits, including remote operation, access across narrow bridges, through gates, or doorways, and reduction of required storage space.
  • Page 45 8. Upon arriving at the work area, activate the hydraulics, lowering the Articulator. Lower the decks until the hydraulic cylinders are fully extended on the wing decks (721XR/721XRT) and retracted on the main frame. The cylinders on the outside two decks should be com- pletely extended and centered in the slots on the front decks (decks 1 and 3) to allow for proper deck flotation(721XR/721XRT only).

  • Page 46: Preparation For Cutting

    Articulator. Release the deck lock cables to allow the Articulator to float properly. Secure the  deck lock cables to the chains. After transporting to the work area, lower the Articulator into the cutting position.  Lastec//021819 Operating Procedures...
  • Page 47 PTO shaft is operating at the tractor manufacturer's recom- mended operating RPM. IMPORTANT! For best results the Articulator should run as close to 540 RPM as possible without exceeding it. Release the parking brake and carefully begin cutting.  Operating Procedures Lastec//021819...

  • Page 48: Recommended Blades

    Gator Mulching Blade (Part No. P322) Mulching blades are designed for use with a mulching (discharge block-off) plate or with a complete mulching system. These blades feature a high lift, “double-cut” edge for quick, thorough shredding of grass clippings, leaves and debris. Lastec//021819 Operating Procedures...

  • Page 49: Ground Speed

    Articulator. When backing up with the articulator, with the blades on or off, you must carefully watch the area around the articulator for obstacles, people, pets and anything that the machine could come into contact with. Operating Procedures Lastec//021819...

  • Page 50: Cutting Extreme Contours

    If, when cutting excessively wet or tall grass at reduced ground speed, you still do not get adequate grass discharge, consider making two passes over the area. Lastec//021819 Operating Procedures...

  • Page 51: Maintenance

    SECTION 5 MAINTENANCE Lastec//021819...

  • Page 52: Mower Deck Leveling Adjustment

    Mower Deck Leveling Adjustment The mowing decks come leveled from the Lastec factory. Should the decks require reset- ting during the course of maintenance, an eccentric cam in the ball joint of the deck pivot assemblies can be adjusted to level the decks.

  • Page 53: Every 8 Operating Hours

    Clean off decks of any dirt, grease or oil. Clean and gauge wheels to reset the bearing pre-loads. (Reference Service Bulletin  SB-0149) Perform the appropriate maintenance procedures listed in your tractor manual.  Verify proper installation, operation and flow of grass chutes.  Maintenance Lastec//021819...

  • Page 54: First 8 Hours

    Inspect all blade spindle bearings for wear or damage. Replace if needed.  Inspect and re-pack all wheel bearings. Replace if needed.  Inspect all component parts and wear points. Repair or replace any worn, damaged,  or missing parts. Lastec//021819 Maintenance...

  • Page 55: Annual

    For your convenience, Lastec has developed a complete Rebuild Kit for your Articl-  uator. The 721XR/721XRT kit number is 040220. The 521XR kit number is 029600. Although this kit is optional, Lastec recommends the installation of this kit as an annual maintenance program.

  • Page 56: Articulator Specifications, 521Xr/721Xr/721Xrt

    Mower Deck Cutting Width 11’ 0” 721XR/721XRT Only 7’ 6” 521XR Only Mower Deck Configuration (7) 21” Articulating Mower Decks 721XR/721XRT Only Mower Deck Configuration (5) 21” Articulating Mower Decks 521XR Only Blades 721XR/721XRT Only (7) 21” High Lift P128 (7) 21”...

  • Page 57: Articulator Maintenance Chart, 721Xr/721Xrt

    Maintenance Articulator Maintenance Chart, 721XR/721XRT 5.10 Articulator Maintenance Chart, 721XR/721XRT Maintenance Lastec//021819...

  • Page 58: Torque Values

    195 (264.4) ft-lbs (Nm) 160 (217.0) 210 (284.8) ft-lbs (Nm) 170 (230.5) 220 (298.3) ft-lbs (Nm) 175 (237.3) 225 (305.1) ft-lbs (Nm) 302 (409.5) 473 (640.9) ft-lbs (Nm) 300 (406.8) 400 (542.4) ft-lbs (Nm) 466 (631.8) 714 (967.4) Lastec//021819 Maintenance...

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