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The Articulator
Owner's Manual
WZ400 series
D2561
Manual number: MWZ400D2561
WARNING! Read and understand this
!
manual before using this machine.

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Table of Contents
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Summary of Contents for Lastec D2561

  • Page 1 The Articulator Owner’s Manual WZ400 series D2561 Manual number: MWZ400D2561 WARNING! Read and understand this manual before using this machine.
  • Page 2 © Lastec, 2019 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 .......1-1 Product Registration ................1-1 Warranty Registration ................1-1 If You Need To Order Parts ..............1-2 Servicing The Articulator ...............1-2 Lastec Product Warranty ................1-3 Component Manufacturers’ Warranties ..........1-5 SECTION 2 SAFETY INFORMATION Warning Symbols ...................2-1 About This Section .................2-1...
  • Page 4 Table of Contents Section-Page 3.19 Tires and Wheels ..................3-15 3.20 General Inspection................3-15 3.21 Engine....................3-16 3.22 Hour Meter ...................3-16 3.23 Maintenance Checklists................3-16 SECTION 4 OPERATING PROCEDURES Starting The Engine................4-1 Stopping The Engine ................4-2 Motion Control ..................4-2 Recommended Blades ................4-3 Ground Speed ..................4-4 Mower Deck Operation ................4-5 Mule Pulley Adjustment.................4-6 Anti-Scalp Wheel Adjustment..............4-6...
  • Page 5: To The Owner

    Warranty Registration 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 distributor in warranting and servicing of your Articulator. To The Owner...
  • Page 6: If You Need To Order Parts

    Articulator due to their substandard quality or incorrect application. In order to handle all of your service needs, your authorized Lastec dealer stocks genuine Lastec parts, and has trained mechanics on hand.
  • Page 7: Lastec Product Warranty

    Lastec Product Warranty GOLF & TURF WARRANTY Lastec (“warrantor”), with its place of business at 8180 W. 10th Street, Indianapolis, IN 46214 warrants 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...
  • Page 8 Warranty Parts Return Lastec reserves the right to have parts returned that have been submitted for warranty. The service department will issue an RMA number. The part must be returned within 30 days of the requested return date.
  • Page 9: Component Manufacturers' Warranties

    Some of the component parts of your Articulator are warranted by their respective manu- facturers. These parts include: Engine  Clutch  The complete manufacturers’ warranty information for these components is available upon request. Contact your Lastec dealer if you have questions concerning warranties on these component parts. To The Owner 10/1/19...
  • Page 10: Safety Information

    Safety Information Warning Symbols SECTION 2 SAFETY INFORMATION OWNER’S RESPONSIBILITY The procedures listed in this manual may not include all ANSI, OSHA, or locally required safety procedures. It is the owner/operator’s responsibility and not Las- tec to ensure all operators are properly trained and informed of all safety protocols. Owner/Operators are responsible for following all safety procedures when operating and performing maintenance to the Articulator.
  • Page 11: 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 12: Pre-Operational Safety Rules

    Safety Information Pre-operational Safety Rules The best safety device is an informed, careful operator. We ask you to be that kind of operator. Pre-operational Safety Rules Do not allow children on or near the deck. Do not operate the deck when children are present. Clear area of all personnel before operating the deck.
  • Page 13: Pre-Operational Safety Rules

    Safety Information Pre-operational Safety Rules Always perform the pre-operation equipment inspection and the appro- priate maintenance schedule before operating your Articulator. Do not change the engine governor settings or over-speed the engine. Pre-operational Safety Rules Do not allow children on or near the deck. Do not operate the deck when children are present.
  • Page 14 Safety Information Operational Safety Rules Operate only in daylight or good artificial light (min. 200 Lux).. Wear Personal Protection Equipment when operating the Articulator. Ensure that the parking brake is set and blades disengaged before attempting to start the engine. Do not operate the mower without the grass chute or mulching plate installed and secure.
  • Page 15: Maintenance Safety Rules

    Safety Information Maintenance Safety Rules Do not place your hands or feet under the deck while the engine is run- ning. Take all possible precautions when leaving the mower unattended: disengage the blades, turn off the engine, set the parking brake, and remove the key.
  • Page 16: Storage Safety Rules

    Safety Information Storage Safety Rules Perform the appropriate maintenance schedule(s) in a timely fashion. Do not allow anyone near any operator controls while performing adjustments, service or maintenance to the drive unit or deck. Personal Protection Equipment such as eye, hand, head, and ear protection when performing any service or maintenance to the drive unit or deck.
  • Page 17: Use Caution When Working With Batteries

    Safety Information Use Caution When Working With Batteries Allow the engine to cool before storing it in an enclosed area. Remove all accumulated debris from the top and bottom of the deck before storing. Sand chipped or scratched areas and re-paint them to prevent rust during storage.
  • Page 18: Safe Booster Cable Operation

    Safety Information Safe Booster Cable Operation EMERGENCY TREATMENT FOR CONTACT WITH BATTERY COMPONENTS (LEAD/SUL- FURIC ACID) per SDS (Safety Data Sheet): EYE CONTACT Sulfuric Acid and Lead: Flush eyes immediately with large amounts of water for at least 15 minutes while lifting lids. Seek immediate med- ical attention if eyes have been exposed directly to acid.
  • Page 19: Safety Decals And Symbols

    Safety Information Safety Decals and Symbols 7. Start engine and remove cables in REVERSE order of connections. TO STARTER TO STARTER BOOSTER CABLE STARTING STALLED VEHICLE VEHICLE BATTERY BATTERY BOOSTER CABLE TO GROUND TO GROUND ENGINE BLOCK LT0013 FRAME FIG. 2-1 2.12 Safety Decals and Symbols The following safety symbols are used on your Articulator.
  • Page 20: Hazard Identified Chart

    Safety Information Hazard Identified Chart Keep Covers Locked Down Pinch Point. Read the Manual. Remove the Key. Rotating Parts. Rotating Shaft. Stay Away. Thrown Objects. 2.13 Hazard Identified Chart Hazard Identified Risk Source Control Measure Operator injury Inexperience Complete Owner’s Manual supplied covering all aspects of operating the unit.
  • Page 21 Safety Information Hazard Identified Chart Risk of burns to hands and Hot surfaces from operations, Warning decals. fingers such as exhaust system Clear warning in manual. Burns and scalds from radia- Hot steam or water jets from Clear warning in manual. opening radiator when engine is hot Danger of entanglement...
  • Page 22: Initial Set-Up

    Initial Set-Up Assembly SECTION 3 INITIAL SET-UP Assembly The Articulator comes preset from the factory and ready to mow. Should adjustments be necessary due to shipment, follow the set-up procedures listed herein. Parking Brake Set the parking brake before performing any set-up, inspection, adjust- ments, or maintenance to your Articulator.
  • Page 23: Operator Seat Pan

    Initial Set-Up Operator Seat Pan before operating. The fuel tanks have a gauge that shows the approximate fuel level at all times. Do not attempt to fuel your Articulator until you read and understand the entire INITIAL SET-UP section of this manual. GAS ONLY: Use only unleaded gasoline fuel.
  • Page 24: Engine Oil

    Initial Set-Up Engine Oil 2. Clean the entire engine area and mower deck area (under the operator seat pan) of all excess grease, oil, fuel, grass, or debris before operating your Articulator to prevent dam- age to the equipment, fire hazard, and projectile hazards. 3.
  • Page 25: Hydraulic Fluid

    The hydraulic oil used in your Articulator is formu- lated to prolong the life of the hydrostatic pumps. CM0035-1 Lastec offers the following oil kits (system capacity is approximately 5 quarts). Kit size Part number...
  • Page 26: Hydrostatic Pump Adjustment

    Initial Set-Up Hydrostatic Pump Adjustment 4. Use the sight gauge on the side of the hydraulic tank to fill to the “Fill Line.” 5. Inspect the motors and pumps, the filter, tank, all hoses, clamps, and fittings, and the entire area under the hydraulic system for leaks. 6.
  • Page 27: Towing (Hydrostatic Pump Release)

    Initial Set-Up Towing (Hydrostatic Pump Release) 4. If either drive tire rotates, adjust the hydro- static pump link arm for that tire. See Figure 3-3. a. Loosen the jam nut from the hydro- static pump link arm. (The jam nut is located between the rod end and the link arm).
  • Page 28: Hydrostatic Pump Belt

    See the Parts Manual or contact your Lastec dealer for the proper belt lengths for your Articula- tor. 4. Check for belt wear and/or wear to the nylon tensioning rods (part number 049571) if slip- page is occurring.
  • Page 29: Mower Deck Drive Belt

    If you are unable to install a new belt with the idler system at its mini- mum stroke, it is likely you are installing the wrong size belt. Contact your Lastec dealer for proper belt lengths for your Articulator. 4. Ensure that the idler tensioning urethane spring is properly installed and in good condi- tion.
  • Page 30: Deck Belt

    If the belt you are checking is new, and the idler tensioner slides to its maximum stroke without adequately tightening the belt, it is likely you have installed the wrong size belt. See section 5 of this manual or contact your Lastec dealer for the proper belt lengths for your Articulator.
  • Page 31: Weight Transfer Springs

    Initial Set-Up Weight Transfer Springs Ensure to replace all covers and hardware. 3.13 Weight Transfer Springs The weight transfer springs help to lighten the mower deck by transferring excess weight to the drive unit, allowing more agile floating of the mower deck and a higher quality cut.
  • Page 32: Operator Seat

    5. Replace any damaged, dull, cracked, or missing blades before operating your Articulator. Lastec also offers low-lift blades and mulching blades for certain mowing applications. Contact your Articulator dealer for further information about optional blades available. 3.15 Operator Seat 1.
  • Page 33: Mower Deck Height

    Initial Set-Up Mower Deck Height a. Arms should also “snap” back to neutral posi- tion, which is straight up and down and cen- tered with the neutral position lock (notch in the frame). 4. Ensure to return and lock both control arms into neu- tral position.
  • Page 34 Initial Set-Up Mower Deck Height Calibration Ensure to set the parking brake before making any adjustments to your Articulator. When you receive your Articulator, you will need to calibrate the mower deck height. 1. Park your Articulator on a flat, level surface. 2.
  • Page 35 Initial Set-Up Mower Deck Height Calibration 7. Use the center turnbuckle on the deck lift assemblies to level the center deck front-to-back. See Figure 3-11. Tolerances for front-to-back is positive 1/8 inch in the rear -- the rear should never be lower than the front edge. Retighten the jam nuts on the turn- buckle after leveling the deck.
  • Page 36: Tires And Wheels

    Initial Set-Up Tires and Wheels The factory setting is approximately 1 inch, and should be readjusted to meet your needs. Do not allow the anti-scalp roller to be on the ground constantly or it will result in premature wear. 3.19 Tires and Wheels 1.
  • Page 37: Engine

    Initial Set-Up Engine 3.21 Engine 1. Check the exhaust while the engine is running. During proper operation, the exhaust should be colorless. If the engine runs continuously with dark exhaust, stop the engine and correct the problem before operating your Articu- lator.
  • Page 38: Operating Procedures

    Operating Procedures Starting The Engine SECTION 4 OPERATING PROCEDURES Starting The Engine Do not allow extended running of any engine indoors. Do not attempt to operate your Articulator until you have read and understand this manual in its entirety. Do not allow anyone to operate your Articulator without proper training and without first reading and understanding this manual in its entirety.
  • Page 39: Stopping The Engine

    Operating Procedures Stopping The Engine 3. Release the key (which will return to the running position) when engine starts. 4. Adjust the throttle lever (located to the lower right of the operator seat) forward (down- ward) until the engine is running at a steady idle. NOTE: Do not overpower the engine.
  • Page 40: Recommended Blades

    Operating Procedures Recommended Blades Release the parking brake. In order to maneuver your Articulator, you must first remove both steering control arms from the neutral lock position. Grasp each steering control arm with each hand, and pull them both toward the center of the unit until they are free from the neutral lock. To travel forward: Push both control levers forward evenly.
  • Page 41: Ground Speed

    Operating Procedures Ground Speed LOW-LIFT BLADE Low-Lift Blade is recommended for 1”-2” cutting height. Use a Low Lift Blade when the conditions are dry, the region is experiencing a drought, in sandy soil areas or when per- forming seasonal scalping. When conditions like this are evident, lift created by the cutter blades can be reduced, decreasing the abrasion wear to the cutter blades and deck caused by sand.
  • Page 42: Mower Deck Operation

    Operating Procedures Mower Deck Operation Mower Deck Operation Stay well clear of blades during operation. Clear area of all personnel before engaging the blades. Verify that all safety covers are in place before operating your Articula- tor. Do not aim/point/etc. the discharge in the direction of bystanders, vehi- cles, or buildings.
  • Page 43: Mule Pulley Adjustment

    Operating Procedures Mule Pulley Adjustment Mule Pulley Adjustment The mule pulley is located under the engine. The drive belt passes through the pulley to the main deck drive pulley. Under normal operating situations, the pulley should not be changed from the factory set position.
  • Page 44 Operating Procedures Anti-Scalp Wheel Adjustment 10/1/19 Operating Procedures...
  • Page 45: Maintenance

    Maintenance Maintenance SECTION 5 MAINTENANCE Maintenance Remove all non-essential personnel, especially children, from the maintenance area.. Proper maintenance of your Articulator is important. ALWAYS perform the appropriate maintenance checklist at the proper time interval. Failure to complete the appropriate maintenance checklists at the proper time intervals will cause damage to your Articulator, unsafe operating conditions, substandard performance, and may void the war- ranty of your Articulator.
  • Page 46: First 25 Operating Hours

    Maintenance First 25 Operating Hours Verify that all brake cables and hardware are functional, securely fastened and in  good condition. Verify proper installation, operation, and unobstructed flow of grass chute.  Inspect entire Articulator for loose or entangled parts, debris, obstructions, mis- ...
  • Page 47: Every 400 Operating Hours

    Maintenance Every 400 Operating Hours Every 400 Operating Hours Replace fuel filter cartridge.  Change the hydraulic oil and filter.  Every 500 Hours Inspect and re-pack all wheel bearings.  Flush fuel tanks.  Check engine valve clearance  Check head mounting bolt torque (while doing valve check) ...
  • Page 48: Maintenance Schedule

    Maintenance Maintenance Schedule 5.12 Maintenance Schedule 10/1/19 Maintenance...
  • Page 49: Lubrication Points And Deck Belt Routing

    Maintenance Lubrication Points and Deck Belt Routing 5.13 Lubrication Points and Deck Belt Routing Lubricate every 8 hours of operation. CM0036-1 Deck Drive Belt Idler (Lower Rear) FIG. 5-1 Lubricate every 8 hours of operation. See Section 5.13 for the deck belt part number. CM0025-3 FIG.
  • Page 50 Maintenance Urethane Bushings times. Failure to keep these spacers tight will result in premature wear on the bolts, and equipment damage. CM0036-2 FIG. 5-3 Ensure that ALL bolts associated with urethane bushings are tight at all times. In some cases, urethane bush- ing applications are associated with grease points.
  • Page 51: Specifications

    Hydraulic Fluid Filter 25 Micron, 7 GPM Full-Flow, 3/8” NPT P620 Hydraulic Fluid Capacity 5 quarts Hydraulic Pump Drive Belt B51.5 Custom 105145 Lastec hydraulic fluid is equivalent to Special Mobil 20W50 with options and Mobile One Synthetic 15W50. 10/1/19...
  • Page 52 Engine Specifications Engine Specifications 25HP Engine (2561D/2573D) Kubota DH902E-1-4 Liquid Cooled 073463 Model Bore & Stroke 72 x 73.6mm / 2.8 x 2.9 in Total .898L /54.8 cu in Displacement Power 24.8 HP High / Low Idle Speed 3600 RPM/1200 RPM Compression Ratio 24:1 Dry Weight...
  • Page 53: Hydraulic System Diagram

    Hydraulic System Diagram Hydraulic System Diagram REAR VIEW CM0065-2 Return TANK Case Drain FILTERS Case Drain PUMP PUMP WHEEL MOTOR (RIGHT) WHEEL MOTOR (LEFT) PART # DESCRIPTION COMMENTS QTY. 105149 Hose Assembly, 1/2HPx17In ORFS 8 ST 105211 Hose Assembly, 3/8LPx8In ORFS 6 45 105215 Hose Assembly, 3/8LPx18In ORFS 6 45 105216...
  • Page 54: Electrical Information

    Electrical Information Electrical Information Electrical Schematic Glow Ylo/Wht Starter Battery Alternator Key Switch Fuel Solenoid Red/Ylo Clutch Red/Ylo Water Temp Switch Water Temp Alarm Oil Pressure Switch Oil Press Alternator Alternator Hour Meter Red/Wht Temp Gauge Water Temp Sender Wht/Vio Tachometer Alternator Grn/Ylo...

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Wz400 series

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