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National Mower I-TRIM Owner's Manual

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I-TRIM
OWNER'S MANUAL
Includes Specifications, Assembly, Operation,
Maintenance & Parts Lists
NATIONAL MOWER CO.
700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A.
Phone (651) 646-4079 – Fax (651) 646-2887
www.nationalmower.com
MARCH 2006

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  • Page 1 I-TRIM OWNER'S MANUAL Includes Specifications, Assembly, Operation, Maintenance & Parts Lists NATIONAL MOWER CO. 700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A. Phone (651) 646-4079 – Fax (651) 646-2887 www.nationalmower.com MARCH 2006...

  • Page 3: Table Of Contents

    ® I-TRIM TABLE OF CONTENTS Table of contents ............3 Introduction ............... 4 Safe Operating Practices ........4-6 Decal (Transfer) Identification ....... 7-9 Introduction and Receipt of Shipment ....10 1— Specifications ........... 11 2— Assembly Instructions ........12 3—General Information .......... 15 4—Controls .............

  • Page 4: Introduction

    • Keep in mind that the operator or user is responsible for INTRODUCTION accidents or hazards occurring to other people or their Read this manual carefully to learn how to operate and property. maintain your product properly. The information in this manual can help you and others avoid injury and product •...

  • Page 5: Maintenance And Storage

    ® I-TRIM Operation • Stop the engine and disengage drive to attachment • Do not operate the engine in a confined space where - before refuelling; dangerous carbon monoxide fumes can collect. - before removing the grass catchers; before making height adjustment unless adjustment •...
  • Page 6 WARNING– California, USA residents are required by law (CA PRC 4442 & CA H & SC 13005) to equip their engines with spark arresters when operating in flammable vegitation. Arresters must be obtained from your engine dealer and are not available from National Mower Company.

  • Page 7: Decal (Transfer) Identification

    National has provided decals in many locations throughout the machine to aid the operator in identifying, controlling and operating the I-Trim safely and correctly. It is important that all decals are clean and visable at all times. Replace decals that are damaged, missing or accidently painted...
  • Page 9 I-TRIM NAMES AND LOCATIONS Item Part No. Description / Location 07792 I-Trim Model / Left and Right sides of operator panels 07794 Natinal Logo / Top of rear hood 07793 National Name / Front of steering column 07797 Diesel Fuel / Top of Fuel Tank...

  • Page 10: Introduction And Receipt Of Shipment

    INTRODUCTION Designations of right, left, front and rear are used in the This manual has been prepared by National Mower position of the operator sitting in the seat. Company as an aid to users for set up, operation and servicing and ordering replacement parts. Additional...

  • Page 11: 1-Specifications

    ® I-TRIM 1—SPECIFICATIONS BATTERY TYPE: Exide Model 60 Premium 1.1—ENGINE SPECIFICATIONS Type 78-60 12 V side post 7 3/16 (18 cm) height 6 ¾ (17 cm) width TYPE: 3 cylinder turbocharged Diesel 10 1/4 (26 cm) length ENGINE MODEL: Briggs & Stratton 954 DT 1.5—CUTTING UNIT SPECIFICATIONS...

  • Page 12: 2-Assembly Instructions

    2—ASSEMBLY INSTRUCTIONS 2.2—REAR DECK ASSEMBLY 2.1—TRACTOR ASSEMBLY 1. Remove crating top, front and sides from deck crate. Unscrew blades from crate. Handle banding material with caution. Use heavy 2. Remove rear deck from crate and position behind leather gloves. Banding is sharp! tractor as shown in Figure C.
  • Page 13 2.4—DECK MOTORS AND BLADES Install roll-over protective structure with supplied bolts and The I-Trim is available with standard or mulch- nuts as shown on Fig E. ROPS can be installed with seat in forward position. Lower ROPS over seat and insert LH side ing blades.
  • Page 14 Crankcase oil has been installed at the factory. However it is recommended that the engine be checked for proper oil Each I-Trim Deck is supplied with a safety guard for the level before starting. Refer to separate engine manual rear discharge area. These guards are supplied to included with each I-Trim Mower.

  • Page 15: 3-General Information

    3.4—INTERLOCK SWITCHES There are three safety switches on your I-Trim. They are a safety precaution, which will allow you to start your mower only when the traction pedal is in neutral, the deck motor control switch is in the disengaged position and the operator is seated on the tractor.

  • Page 16: 4-Controls

    After 5 seconds, the Glow Plug ON light should turn off (Fig ignition key is in the “on” position. Your I-Trim Mower maybe equipped with a digital hour meter. This meter will display a signal after 5 hours and every 25 hours thereafter, recommending that you perform maintanncel and lubricate the mower.
  • Page 17 ® I-TRIM 4.4—THROTTLE LEVER 4.9—DECK DRIVE CONTROL Push throttle lever (4, Fig. J) forward to increase engine speed, pull back to decrease the engine speed. By toggling the deck drive control switch ON (9, Fig. Position throttle at full throttle or slightly less for optimum J), an electric solenoid valve is activated which power and deck speed during mowing.

  • Page 18: 5-Operation

    5—OPERATION 5.1—CHECK LIST Operate at speeds which allow you to have complete control of the tractor and allow you to stop the tractor or 1. Fill the fuel tank with good quality, clean, diesel with a maneuver safely in case of an emergency. It is minimum of 40 octane.
  • Page 19 INSTRUCTIONS 5.5—MOWING The I-Trim should not be pushed or towed with the engine not running. If needed, the I-Trim can be pushed or towed at slow speeds for very short distances without starting the engine. Stop tractor, by releasing the traction pedal, then slowly Do not exceed 2 mph while pushing or towing.

  • Page 20: 6-Adjustments

    6—ADJUSTMENTS 5.8—AFTER OPERATION Read each instruction completely and, make sure you under- 1. Clean the entire mower after use. Remove loose grass stand it before making any adjustments. Follow all the safety clippings and caked grass to prevent clogging the vented precautions.
  • Page 21 I-TRIM 6.3—GROUND SPEED CONTROL REAR, RIGHT DECKS -SHARP EDGE UP The I-Trim does not have an adjustable ground speed control. See Section 4.7 for pedal adjustment. 6.4—REAR MOWER LIFT The rear mower lift height has been preset at the factory and The I-Trim may be normally will not need to be adjusted.

  • Page 22: 7-Maintenance

    Always wear protective glasses or goggles and maintenance it receives. Set-up a maintenance program for protective clothing when working with batteries. your I-Trim to cover the following points: Always connect the “ground” (black) cable last and remove it first whenever performing any Keep tractor and decks clean maintenance.
  • Page 23 7.5—BELTS 1. Assemble nut, sleeves and tube to fitting body with There are no belts on the I-Trim. minimum torque (finger tight) until flare contacts seat on fitting body. 2. For tightening reference, mark a line lengthwise on both the nut and adapter fitting with a marker.
  • Page 24 7.10—HYDRAULIC OIL 7.12—JUMPER CABLES 1. The oil level should be checked if any oil leaks are The battery on the I-Trim is located at the rear of the tractor, dicovered. Oil level should be brought to decal mark on See.
  • Page 25 ® I-TRIM THIS PAGE IS BLANK...
  • Page 26 7.14—LUBRICATION Figure U shows the top view of the I-Trim with guards removed. Lubricate your tractor at the recommended locations and intervals using proper lubricants so that maximum service and long life of the machine may be obtained. Your I-Trim Mower maybe equiped with a digital hour meter.
  • Page 27 ® I-TRIM...

  • Page 28: 8-Storage

    8—STORAGE 8.5—TIRES Before storing the vehicle, clean the tires thoroughly. 8.1—GENERAL INSTRUCTIONS Jack up the vehicle so that the load is off the tires. If it is When you do not plan to use your vehicle for some time, it not jacked up, check the tires at regular intervals and re- should be stored in a dry and protected place.

  • Page 29: 9-Troubleshooting

    ® I-TRIM 9—TROUBLE SHOOTING MAKE WORK AREA SAFE: Make sure personnel in the area are out of harms way if the engine starts or the decks To avoid possible serious injury, before mak- run unexpectedly. Engage the vehicle ing any adjustments or performing mainte- parking brake.
  • Page 30 If engine doesn’t crank: 9. SAFETY INTERLOCK BOARD (SIB): 1. With a test light, check for power at plastic The ITrim is equipped with an integrated connector on the starter solenoid while an circuit board designated as the Safety assistant turns the key. Interlock Board (SIB).
  • Page 31 ® I-TRIM If no lights come on and fuse is good If the pedal relay indicator light is off with seat and there is power to the board: and run relay indicator lights on: 1. Make sure SIB is grounded by checking the...
  • Page 32 Problem: STARTER CRANKS BUT ENGINE WON’T START If light comes on: Test the resistance of the deck run Check the electrical system after checking for fuel hydraulic valve coil (at coil connector). in the tank and after priming the fuel system. The resistance should be approximately 4c ohms.

  • Page 33: Wiring Diagram

    ® I-TRIM...

  • Page 35: 10-Parts Ordering Information

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  • Page 38: Deck Lift Arms And Pull Arms

    FIGURE 2...
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  • Page 40 FIGURE 3...
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  • Page 46: Front Axle, Fuel Tank, Frame

    FIGURE 6B FIGURE 6A...
  • Page 47 ® I-TRIM FIGURE 6A — FRONT AXLE, FUEL TANK, AND FRAME FIGURE 6B - FRONT WHEEL ASSY...

  • Page 48: Engine And Radiator Assembly

    FIGURE 7 FIGURE 7—ENGINE AND RADIATOR ASSEMBLY NOTE: CONTACT BRIGGS & STRATTON FOR P/NS STARTING WITH B&S...

  • Page 49: Rear Mower Deck Assembly

    ® I-TRIM FIGURE 8—REAR MOWER DECK ASSEMBLY ITEM NO. QTY. PART NO. DESCRIPTION 1 306171 WELDMENT - DECK PLATFORM RR 2 306064 WELDMENT - FRONT ROLLER AXEL 1 306074 WELDMENT - BLADE HOLDER 2 306067 WELDMENT - REAR ROLLER ADJUSTER...

  • Page 50: Right Mower Deck Assembly

    FIGURE 9—RIGHT HAND MOWER ASSEMBLY ITEM NO. QTY. PART NO. DESCRIPTION 1 306058 WELDMENT - CASTER AXEL 1 306074 WELDMENT - BLADE HOLDER 1 306170 WELDMENT - CASTER PIVOT MOUNT RH 1 306169 WELDMENT RH DECK PLATFORM 2 306067 WELDMENT - REAR ROLLER ADJUSTER 2 306069 WELDMENT - HOUSING, REAR ROLLER ADJUSTER 1 306064...

  • Page 51: Left Mower Deck Assembly

    ® I-TRIM FIGURE 10—LEFT HAND MOWER ASSEMBLY ITEM NO. QTY. PART NO. DESCRIPTION 1 306107 WELDMENT - L DECK PLATFORM 1 306108 WELDMENT - CASTER PIVOT MOUNT 1 306074 WELDMENT - BLADE HOLDER 1 306058 WELDMENT - CASTER AXEL 2 306067...
  • Page 53 ® I-TRIM FIGURE 11—HYDRAULIC DECKS AND OIL COOLER ITEM NO. QTY. PART NO. DESCRIPTION 306195 WELDMENT - HYDRAULIC RESERVOIR 305737 DECK MOTOR - R, REAR DECKS, CCW 305736 DECK MOTOR - L DECK CW 305037 BASE - HYDRAULIC FILTER 07691...
  • Page 55 ® I-TRIM...

  • Page 56: Electrical System Components

    P/N 07787 WIRING HARNESS FIGURE 13—ELECTRICAL SYSTEM COMPONENTS Qty. Description...

  • Page 57: Steering Cylinder

    ® I-TRIM FIGURE 14 FIGURE 14—STEERING CYLINDER, 204382 Qty. Item Description Part No. 07501 SEAL KIT (Includes all of below) --------- O-RING, 1-1/4” --------- WEAR RING, 1.5” x .38” Wide --------- WASHER --------- CROWN SEAL, 1.5” --------- O-RIING --------- O-RING...

  • Page 59: Hydraulic Schematic - Mower Drives/Deck Lift

    ® I-TRIM...

  • Page 61: Warrenty

    For the period of two years from the date of purchase, or 1,500 hours, whichever occurs first (45 days if the product is used for rental purposes), National Mower Company will repair or replace free of charge, for the original purchaser, any I-Trim part (except as excluded below) found by inspection to be defective by our Factory Authorized Service Station or by the Factory at St.

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