Textron JACOBSEN AR722T Maintenance Manual
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Textron JACOBSEN AR722T Maintenance Manual

Textron JACOBSEN AR722T Maintenance Manual

68233 – ar722t-t4f, kubota v2403dicr-t, 4wd with rops
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Safety Operations and Maintenance Manual
AR722T
™
68233 – AR722T-T4F, Kubota
WARNING: If incorrectly used this machine can cause severe
injury. Those who use and maintain this machine should be
trained in its proper use, warned of its dangers and should
read the entire manual before attempting to set up, operate,
adjust or service the machine.
GB
RJL 100 August 2014
United
Kingdom
WARNING
®
V2403DICR-T, 4WD with ROPS
4299115-GB-Rev A
When Performance Matters.
™

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  • Page 1 4299115-GB-Rev A Safety Operations and Maintenance Manual AR722T ™ ® 68233 – AR722T-T4F, Kubota V2403DICR-T, 4WD with ROPS WARNING WARNING: If incorrectly used this machine can cause severe injury. Those who use and maintain this machine should be trained in its proper use, warned of its dangers and should read the entire manual before attempting to set up, operate, adjust or service the machine.

  • Page 2: Table Of Contents

    State of © Copyright 2013, Jacobsen, A Textron Company. “All rights California to cause cancer and birth reserved, including the right to reproduce this material or portions defects or other reproductive harm. thereof in any form.”...

  • Page 3: Introduction 2

    2Introduction IMPORTANT ______________________________________________________________ The Jacobsen AR722T with a Diesel engine is a self propelled rotary mower. The hydraulic systems are for the traction drive, steering, lift - lower and the cutting unit drive. If you follow all instructions in this manual, you increase the life of your mower and keep its maximum performance.

  • Page 4: Product Identification

    Mower Serial number plate Gross weight (Kg) 11524 WILMAR BLVD, ® Engine Power (Kw) CHARLOTTE, NC 28273 A Textron Company PRODUCT OF U.S.A. 1-800-848-1636 (US) Date code Product number and Serial number Location of Mower Serial number plate The serial number plate (A) is found on the right side frame rail behind the rear decks.

  • Page 5: Guidelines For The Disposal Of Scrap Products

    INTRODUCTION 2 GUIDELINES FOR THE DISPOSAL OF SCRAP PRODUCTS _______________________ 2.4.1 DURING SERVICE LIFE _____________________________________________________ The used oil, oil filters and engine coolant are hazardous materials. Follow the recommended procedures for their safe removal. If a fluid leaks, contain the spill to make sure that the leak does not flow into the ground or drainage system. Follow the local laws to make sure that leaks are controlled safely.

  • Page 6: Safety

    3 SAFETY 3Safety HOW TO OPERATE SAFELY ______________________________________________________ WARNING EQUIPMENT OPERATED INCORRECTLY OR WITHOUT TRAINING CAN BE DANGEROUS. Know the location and correct operation of controls. Operators without experience must receive instruction from another person that knows the correct operation of the equipment before you operate the mower. Only use parts, accessories and attachments approved by Jacobsen.
  • Page 7 SAFETY 3 3.1.3 OPERATION Never operate the engine without enough ventilation or in an enclosed area. The carbon monoxide in the exhaust fumes can increase to dangerous levels. Never carry passengers. Keep other persons or animals away from the mower. Disengage all drives and engage the parking brake before you start the engine.
  • Page 8 3 SAFETY 3.1.4 ROPS The ROPS is a safety device. Keep the ROPS in the vertical and locked position. Always use the seat belt when you operate the mower. Make sure the seat belt can be released quickly in an emergency. Only operate the mower with the ROPS in the folded position on flat and level surfaces when necessary.
  • Page 9 SAFETY 3 Disconnect the battery before you service the mower. Always disconnect the negative battery cable before the positive battery cable. Always connect the positive battery cable before the negative battery cable. Charge the battery in an area with good airflow. The battery can release hydrogen gas that is explosive. To prevent an explosion, keep any device that can cause sparks or flames away from the battery.
  • Page 10 3 SAFETY 3.1.8 IMPORTANT SAFETY NOTES _______________________________________________ This safety alert symbol gives a warning of possible hazards. DANGER - Indicates a dangerous condition that WILL cause death or injury unless it is prevented. WARNING - Indicates a dangerous condition that CAN cause death or injury unless it is prevented. CAUTION - Indicates a dangerous condition that can cause injury and property damage unless it is prevented.

  • Page 11: Specifications 4

    SPECIFICATIONS 4 4Specifications ENGINE SPECIFICATIONS __________________________________________________ AR722T Make Kubota Model V2403-CR-T-E4B Type Four cycle, liquid cooled, Diesel Number of Cylinders Bore and Stroke 3.43 in. (8.7 cm) x 4.03 in. (10.24 cm) Total Displacement 148.5 in (2.434 l) Combustion System Direct Injection Intake System Turbocharged...

  • Page 12: Dimensions And Weights

    4 SPECIFICATIONS DIMENSIONS AND WEIGHTS ________________________________________________ AR722T A - Width of Cut 124 inch (315.0 cm) B - Maximum Width 133 inch (340.4 cm) C - Transport Width 98 inch (248.6 cm) D - Height ROPS frame in the 89 inch (226.1 cm) vertical position E - Height ROPS frame folded 61 inch (155.2 cm)
  • Page 13 SPECIFICATIONS 4 A - AR722T B - AR722T...

  • Page 14: Mower Specification

    4 SPECIFICATIONS MOWER SPECIFICATION ___________________________________________________ Battery: 12V, 600 CCA, Group BCI 24 Service Brake: Dynamic braking through the traction circuit Parking Brake: Integrated in wheel motor, hydraulic release Fuel Tank: 17 U.S. Gallons (65 l) Hydraulic Tank: 14 U.S. Gallons (37.85 l) Hydraulic Fluid: GreensCare 68 Return Filter:...

  • Page 15: Vibration Level

    SPECIFICATIONS 4 VIBRATION LEVEL_________________________________________________________ The mower was tested for hand and arm vibration levels. The operator was in the normal position to drive the vehicle, with two hands on the steering mechanism. The engine was in operation and the cutting device was in rotation, while the mower was not moving.

  • Page 16: Slopes

    4 SPECIFICATIONS SLOPES _________________________________________________________________ DO NOT USE ON SLOPES GREATER THAN 15.7°. The 15.7° slope was calculated with static stability measurements according to the requirements of BS EN ISO 5395-3. CUTTING UNIT SPECIFICATION _____________________________________________ AR722 Blade Length 22.4 in. (56.8 cm) Number of cutting units Height of cut 3/4 to 5-1/4 in.

  • Page 17: Accessories

    SPECIFICATIONS 4 ACCESSORIES____________________________________________________________ 4.9.1 CANOPY / SUN SHADE _____________________________________________________ Product number 68127 4.9.2 HOOD LOCKING LATCH ____________________________________________________ Kit Number 1004049 4.9.3 REPLACEMENT BLADES ___________________________________________________ Standard Blade 4163106 High Lift Blade 4137186 Low Lift Blade 4124087 Standard High Lift Low Lift Blade Blade Blade...

  • Page 18: Declaration Of Conformity

    Uzņēmuma nosaukums un pilna ražotāja adrese ▪ Verslo pavadinimas ir pilnas gamintojo adresas ▪ Isem kummerċjali u indirizz sħiħ tal-fabbrikant ▪ Jacobsen, A Textron Company Nazwa firmy i pełny adres producenta ▪ Nome da empresa e endereço completo do fabricante ▪...
  • Page 19 Ort und Datum der Erklärung ▪ Τόπος και ημερομηνία δήλωσης ▪ A nyilatkozat kelte (hely és idő) ▪ Luogo e data della dichiarazione ▪ Jacobsen, A Textron Company Deklarācijas vieta un datums ▪ Deklaracijos vieta ir data ▪ Il-post u d-data tad-dikjarazzjoni ▪ Miejsce i data wystawienia deklaracji ▪...
  • Page 20 Director of Engineering Assinatura da pessoa com poderes para emitir a declaração em nome do fabricante, que possui a documentação Jacobsen, A Textron Company técnica, que está autorizada a compilar o processo técnico e que está estabelecida na Comunidade. 11524 Wilmar Blvd, Semnătura persoanei împuternicite să...

  • Page 21: Decals 5

    DECALS 5 5Decals SAFETY DECALS __________________________________________________________ Understand the purpose of these decals. The decals are important to the safe operation of the mower. REPLACE THE DAMAGED DECALS IMMEDIATELY. DANGER Injury or death can occur from contact with the blade or from the objects discharged from the mower.
  • Page 22 5 DECALS WARNING To prevent injury, do not touch the muffler or muffler shield. The muffler temperatures can be more than 150° F (66° C). 4199140 WARNING Read the manual before you use the mower. Do not operate the mower with the guards removed. 4181860 WARNING Always use the seat belt with the ROPS frame in the vertical and locked position.
  • Page 23 DECALS 5 4181865 REV B WARNING • Read the manual. Do not allow persons without training to use the mower. • Keep the shields in position and hardware fastened. • Keep your hands, feet and clothing away from moving parts. •...

  • Page 24: Instruction Decals

    5 DECALS WARNING To prevent injury when you fold the ROPS, use caution to prevent your fingers broken between moving and rigid parts of the ROPS. NOTICE WARNING This structure's Do NOT fold this ROPS proctective capability may be impaired by if a canopy is attached.
  • Page 25 DECALS 5 Traction pedal operation 3008521 Patent Decal Manufactured under one or more of the following U.S. patents: 5309699; 5915496; 6,046,530 6336311; 6336312; 7051498 and others pending. Tow valve operation 3008682 Guaranteed Sound Power Level...

  • Page 26: Controls

    6 CONTROLS 6Controls OPERATOR COMPARTMENT________________________________________________...

  • Page 27: Control Panel

    CONTROLS 6 CONTROL PANEL _________________________________________________________ 6.2.8 6.2.11 6.2.16 6.2.10 6.2.7 6.2.12 6.2.9 6.2.13 6.2.6 6.2.14 6.2.5 6.2.4 6.2.15 6.2.3 6.2.2 6.2.1...
  • Page 28 6 CONTROLS 6.2.1 IGNITION SWITCH _________________________________________________________ The ignition switch has three positions, OFF, RUN and START. In the run position, the controller program is active and input and output circuits are monitored. START 6.2.2 PARKING BRAKE SWITCH__________________________________________________ To engage the parking brake, move the orange lock toward front of mower and press the front of the switch.
  • Page 29 CONTROLS 6 6.2.4 TRACTION CONTROL SYSTEM SWITCH_______________________________________ Press and release the front of the switch to activate the Traction Control System (TCS). The controller sends the pulses to the lift circuit, which transfers the weight from the cutting unit to the mower by decreasing down pressure.
  • Page 30 6 CONTROLS 6.2.7 DPF REGEN INHIBIT SWITCH _______________________________________________ Press the rear of the switch to the INHIBIT position to prevent the DPF Regen cycle from starting. The Red light at front of switch will illuminate when switch is in the INHIBIT position. See 9.10 NOTICE If the DPF Regen cycle is prevented for too long of a period, a blockage of the DPF can occur.
  • Page 31 CONTROLS 6 6.2.11 PTO SWITCH _____________________________________________________________ The PTO switch is a 2-position knob type switch to engage and to disengage the mowers. The PTO switch must be in the OFF (down) position to start the engine. Pull on the red knob to move the switch to the ON position. When the PTO switch is in the ON position, mowers are engaged, the joystick is set to automatic mode and the TCS is active.
  • Page 32 6 CONTROLS 6.2.15 THROTTLE LEVER________________________________________________________ The throttle lever controls the engine speed. Always operate the mower at full throttle during normal operation. 6.2.16 COMBINATION GAUGE____________________________________________________ The combination gauge shows the hours of operation, the level of fuel and has six indicator lights to indicate the mower conditions.
  • Page 33 CONTROLS 6 The red hydraulic-level light indicates a low-fluid level in the hydraulic tank. Stop the mower immediately. Visually inspect the mower for indications of leaks around connections, hoses and hydraulic components. Return the mower to the service area for maintenance. WARNING The hydraulic fluid is under pressure.

  • Page 34: Traction Pedal

    6 CONTROLS TRACTION PEDAL_________________________________________________________ The traction pedal controls the movement of the mower. Press the front of the pedal to move in the forward direction. Press the rear part of the pedal to move in the reverse direction. When traction Forward pedal is not pressed, the pedal will return to the NEUTRAL position.

  • Page 35: Seat Controls

    CONTROLS 6 SEAT CONTROLS _________________________________________________________ The seat has four controls to adjust for the operator. WARNING To prevent injuries, DO NOT adjust the seat while you operate the mower. Only adjust the seat with the mower stopped and parking brake engaged. Backrest The seat height control adjusts the height of the seat.

  • Page 36: Operation

    7 OPERATION 7Operation DAILY INSPECTION _______________________________________________________ CAUTION The inspection must be done each day when the engine is turned off and all fluids are cold. Lower the cutting units to the ground, engage the parking brake, stop the engine and remove the ignition key. Do a visual inspection of the mower.

  • Page 37: Interlock System

    OPERATION 7 INTERLOCK SYSTEM ______________________________________________________ The Interlock System prevents the engine to start unless the parking brake switch is in the ON position, the traction pedal is in the NEUTRAL position and the PTO switch is in the OFF (Down) position. The system stops the engine if the operator leaves the seat with the PTO switch in the ON position, traction pedal out of the NEUTRAL position or the parking brake switch in the OFF position.

  • Page 38: Operating Procedure

    7 OPERATION OPERATING PROCEDURE __________________________________________________ WARNING This mower has a folding Roll Over Protection Structure (ROPS). Always wear the seat belt with the ROPS frame in the vertical and locked position. Never wear the seat belt with the ROPS in the folded position. If the mower is over turning and the ROPS is in the vertical and locked position, hold the steering wheel.

  • Page 39: Starting The Engine

    OPERATION 7 STARTING THE ENGINE ____________________________________________________ Start the engine with the operator in the seat, the PTO switch in the OFF position and the parking brake switch in the ON position. Remove your foot from the traction pedal. Always wear the seat belt with the ROPS frame in the vertical and locked position.

  • Page 40: Driving

    7 OPERATION DRIVING _________________________________________________________________ Read and follow all safety instructions contained in this manual when you drive the mower. When you operate in the reverse direction, look behind you to make sure you have a clear path. IMPORTANT: Equipment must meet the current regulations to be driven on the public roads. Push the PTO switch to the OFF position and lift the cutting units to the transport position.

  • Page 41: Mowing

    OPERATION 7 MOWING_________________________________________________________________________ WARNING To prevent injuries, when the blades rotate, keep your hands, feet and clothing away from the cutting unit. NEVER use your hands to clean the cutting units. Use a brush to remove grass from the blades. The blades can be sharp and can cause injury.

  • Page 42: Mowing On Slopes

    7 OPERATION MOWING ON SLOPES______________________________________________________ The mower is made to have good traction and to have good balance. Operate the mower with caution when you drive on a gradient. If you drive on wet grass, the traction and steering control of the mower is decreased. WARNING When you operate on the slopes, lock the ROPS frame in 15.7°...
  • Page 43 OPERATION 7 How to calculate a slope: Tools Required: Level (A), either 1 yard, or 1 meter long. Tape measure (B). Use the level (A) and position it horizontally to measure the distance (C) with tape measure (B). Use the chart to calculate the slope angle or the percentage grade of the slope (D).

  • Page 44: Towing The Mower

    7 OPERATION 7.10 TOWING THE MOWER _____________________________________________________ If the mower has a problem and can not drive to the service area, load the mower on a trailer. If a trailer is not available, tow the mower at a slow speed for short distances. Be careful when you load or unload the mower on the trailer.

  • Page 45: Maintenance And Lubrication Charts 8

    MAINTENANCE AND LUBRICATION CHARTS 8 8Maintenance and Lubrication Charts MAINTENANCE CHART Mower Service Interval Chart Interval Item Section First 50 Hours • Replace engine oil See 9.3 • Replace engine oil filter See 9.3 • Replace hydraulic oil filter See 9.13 •...

  • Page 46: Lubrication Chart

    8 MAINTENANCE AND LUBRICATION CHARTS LUBRICATION CHART _____________________________________________________ Caster Pivot and Caster Wheels Traction Pedal Pivot Mower Pivot Lift Cylinder Rear Roller Wing Pivot Drive Shaft Lift Cylinder Lift Arm Pivot Steering Ball Joint Wing Lift Arm Steering Cylinder Steering Ball Joint Steering Pivot Steering Pivot...

  • Page 47: Maintenance 9

    MAINTENANCE 9 9Maintenance GENERAL PRECAUTIONS ________________________________________________________ WARNING Before you clean, adjust or repair this equipment, push PTO switch to the OFF position, lower front and rear cutting units to the ground, turn on the parking brake switch, stop the engine and remove the key. Make sure the mower is parked on a solid and level surface.

  • Page 48: Engine Oil

    9 MAINTENANCE ENGINE OIL ______________________________________________________________ Check engine oil level Check the engine oil level before you start the engine or at least five minutes after you stop the engine. Park the mower on a level surface. Remove the dipstick, clean the dipstick with a cloth and replace in position.

  • Page 49: Engine Air Filter

    MAINTENANCE 9 ENGINE AIR FILTER _______________________________________________________ Check the service indicator each day. If the red band become visible in the window, replace the filter elements. Dust Valve Do not remove the elements to inspect or clean. Removal of Filter Housing the filter that is not necessary increases the risk of dust and other particles to enter the engine.

  • Page 50: Fuel System

    9 MAINTENANCE FUEL SYSTEM ____________________________________________________________ Water Separator Hand Pump Vent If the water is not removed from the fuel, damage to the fuel-injection system can occur. When the fuel filter light on the filter light module is illuminated or every 100 hours, drain the water from the water separator.

  • Page 51: Battery

    MAINTENANCE 9 BATTERY ________________________________________________________________ Before you service the battery, make sure the ignition switch is in the OFF position and the key is removed. CAUTION When you service the battery, always use the tools with insulation, wear protective glasses and protective clothing. Discard used batteries as shown in your local regulations.

  • Page 52: Charge The Battery

    9 MAINTENANCE CHARGE THE BATTERY __________________________________________________________ WARNING Charge the battery in an area with good airflow. The battery can release hydrogen gas that is explosive. To prevent an explosion, keep any device that can cause sparks or flames away from the battery. When the battery charger is turned on, to prevent injury, stay away from the battery.

  • Page 53: Diesel Particulate Filter

    MAINTENANCE 9 9.10 DIESEL PARTICULATE FILTER ______________________________________________ During the operation of the mower, the level of particle material will increase in the Diesel Particulate Filter (DPF) system. The periodic Regen of the DPF system is needed to remove particle material. During an Active or Parked Regen, the engine will use more fuel.

  • Page 54: Hydraulic Hoses

    9 MAINTENANCE Level 5 - High Exhaust Temperature light will flash quickly and the check engine light is illuminated. The engine power output is decreased significantly. An authorized Kubota Engine Service Center must clean the DPF before the mower is used.

  • Page 55: Hydraulic Fluid

    MAINTENANCE 9 9.12 HYDRAULIC FLUID ________________________________________________________ Drain and replace the hydraulic oil if one of the following occur. • Component failure • Water or foam is in the hydraulic fluid • The hydraulic fluid has a rancid odor (indication of high heat) •...

  • Page 56: Wheel Mounting Procedure

    9 MAINTENANCE 9.15 WHEEL MOUNTING PROCEDURE____________________________________________ Front Wheel WARNING Torque Order Make sure the mower is parked on a solid and level surface. Never work on a mower that is supported only by the jack. Always use jack stands. If only the front or behind the mower is lifted, put the chocks in front of and behind the wheels that are not lifted.

  • Page 57: Folding Rops

    MAINTENANCE 9 9.17 FOLDING ROPS ___________________________________________________________ A folding Roll Over Protective Structure (ROPS) is included with this mower. Inspect the ROPS periodically for loose hardware or damage. CAUTION Keep the ROPS hardware correctly fastened. Do not do the welding operations, drill, change or bend the ROPS. Replace damaged ROPS.

  • Page 58: Inspecting Blades

    9 MAINTENANCE 9.18 INSPECTING BLADES _____________________________________________________ Every 50 hours of operation or when the cutting unit is removed from the mower, carefully inspect the blades to make sure the blades are in good condition. Replace any blade that has bends, grooves or cracks. Normal CAUTION Blade...

  • Page 59: Electrical System

    MAINTENANCE 9 9.20 ELECTRICAL SYSTEM ____________________________________________________________ CAUTION Always turn the ignition switch to the off position and remove the negative (BLACK) battery cable before you inspect or service the electrical system. General precautions to decrease electrical problems are - • Make sure that all the connections are clean and correctly fastened.

  • Page 60: Care And Cleaning

    9 MAINTENANCE 9.21 CARE AND CLEANING _____________________________________________________ Clean the mower and cutting units after each use. To prevent damage to the engine, do not wash the mower with the engine in operation. When possible, clean the mower with compressed air. NOTICE Do not wash any part of the mower that is hot.

  • Page 61: Mower Storage

    MAINTENANCE 9 9.22 MOWER STORAGE ________________________________________________________ General • Clean the mower and lubricate. Repair and paint damaged or open metal. • Inspect the mower, tighten all hardware, replace worn or damaged components. • Drain and fill the radiator. • Clean the tires and keep the mower so that the load is not on the tires. If the mower is not on the jack stands, check tires at normal intervals and add air when needed.

  • Page 62: Adjustments

    10 ADJUSTMENTS 10Adjustments 10.1 GENERAL PRECAUTIONS ________________________________________________________ WARNING Before you clean, adjust or repair this equipment, push PTO switch to the OFF position, lower front and rear cutting units to the ground, turn on the parking brake switch, stop the engine and remove the key. Make sure the mower is parked on a solid and level surface.

  • Page 63: Engine Fan Belt

    ADJUSTMENTS 10 10.3 ENGINE FAN BELT ________________________________________________________ Inspect and adjust a new belt after the first ten hours of operation. Check the belt every 100 hours after the first 10 hours. Upper Mounting Bolt Adjust the alternator position so that the belt moves 1/4 to 5/16 inch (0.6 Lower Mounting to 0.8 cm) with a 20 lb.

  • Page 64: Forward And Reverse Speed Adjustment

    10 ADJUSTMENTS 10.5 FORWARD AND REVERSE SPEED ADJUSTMENT ______________________________ The forward and reverse speed adjustments are made at the traction pedal. Set the forward speed before you adjust the reverse speed. To adjust the forward speed - Make sure that the neutral adjustment is set. Rotate the mow speed stop to the transport position.

  • Page 65: Tcs Calibration

    ADJUSTMENTS 10 10.7 TCS CALIBRATION ________________________________________________________ When a system component is replaced or the system does not operate correctly, you must calibrate the TCS. The TCS components include the controller, lift valve, lift cylinder and hydraulic hoses. WARNING Never operate the engine without enough ventilation or in an enclosed area. The carbon monoxide in the exhaust fumes can increase to dangerous levels.

  • Page 66: Wing Weight Transfer Adjustment

    10 ADJUSTMENTS 10.8 WING WEIGHT TRANSFER ADJUSTMENT _____________________________________ Jacobsen recommends you set the wing weight transfer pressure to 250 psi (17.2 BAR). If you set the wing weight transfer pressure greater than 600 psi (41.4 BAR), the decks will float off the ground. To set the weight transfer pressure: Loosen the knob locknut.

  • Page 67: Steering Adjustment

    ADJUSTMENTS 10 10.10 STEERING ADJUSTMENT ___________________________________________________ Steering Toe-In Adjustment Turn the rear wheels to the straight position. Tie Rod Loosen the jam nuts on both ends of the tie rod. Rotate the tie rod to get the correct toe-in. the Toe- in must not be more than +1/16 inch (+ 0.15 cm).

  • Page 68: Height Of Cut

    10 ADJUSTMENTS 10.11 HEIGHT OF CUT __________________________________________________________ The height of cut for the cutting unit is adjusted from 3/4 to 5-1/4 inch (1.9-13.3 cm) in 1/4 inch (0.6 cm) steps. The height of cut result can be different from the heights given because of the condition of the turf and other conditions. NOTICE When cutting rough areas, a lower height of cut can cause scalping.
  • Page 69 ADJUSTMENTS 10 1/2 inch (1.3 cm) Spacers 1/2 inch (1.3 cm) Spacers 1/4 inch (0.6 cm) Spacer Height of Cut Below Deck Housing Above Deck Housing Position 3/4 inch (1.9 cm) Above Housing 1 inch (2.5 cm) Below Housing 1-1/4 inch (3.2 cm) Above Housing 1-1/2 inch (3.8 cm) Below Housing...

  • Page 70: Torque Specification

    10 ADJUSTMENTS 10.12 TORQUE SPECIFICATION __________________________________________________ NOTICE The torque values included in these charts are approximate and are for reference only. Use these torque values at your risk. Jacobsen is not responsible for any loss, claim or damage caused by these charts. Always use caution with torque values.

  • Page 71: Problem Solving 11

    PROBLEM SOLVING 11 11Problem Solving 11.1 GENERAL ________________________________________________________________ The problem solution chart lists basic problems that can occur during start and operation of the mower. For complete information about the hydraulic and electrical systems, contact your Jacobsen Dealer. Problem Possible Cause Action Engine will not start Parking brake switch OFF, traction...

  • Page 72: Controller

    11 PROBLEM SOLVING 11.2 CONTROLLER ____________________________________________________________ The Mower Controller is a solid state device that monitors and controls the electrical functions of the mower. The controller receives the input signals from switches and sensors in the mower. The controller sends the output signals to operate relays, solenoids and warning lights.

  • Page 73: Quality Of Cut 12

    QUALITY OF CUT 12 12Quality of Cut 12.1 QUALITY OF CUT PROBLEM SOLVING________________________________________ Make a “test cut” to check the performance of the mower before you start the repairs. This area must have turf conditions that are known and do not change across the area. This type of area allows an accurate inspection of the perfomance of the mower to be made.

  • Page 74: Washboarding

    12 QUALITY OF CUT 12.2 WASHBOARDING _________________________________________________________ Washboarding is a repeated pattern of different cutting heights, that causes an appearance that is like a wave. In most cases, the wave tip-to-tip distance is approximately 6—8 in. (15—20 cm). A change in the color (from light-to- dark) is also seen.

  • Page 75: Step Cutting

    QUALITY OF CUT 12 12.3 STEP CUTTING____________________________________________________________ Step cutting occurs when grass is cut higher on one side of a cutting unit than the other side. Step cutting can occur when one cutting unit is higher than another cutting unit. The wear of mechanical parts or an incorrect roller adjustment can cause step cutting.

  • Page 76: Scalping

    12 QUALITY OF CUT 12.4 SCALPING _______________________________________________________________ Scalping is a condition in which areas of grass are cut shorter than the adjacent areas. The area can be light green or brown. A low HOC setting or turf that is not level can cause scalping.

  • Page 77: Stragglers

    QUALITY OF CUT 12 12.5 STRAGGLERS ____________________________________________________________ Stragglers are separated blades of grass the are not cut, or are cut incorrectly. TN0223 NOTE: Arrow indicates direction of travel. Probable Cause Remedy Edge of the cutting blade(s) are not sharp. Sharpen the blade(s). Cut (ground) speed is higher than normal Reduce the cut (ground) speed.

  • Page 78: Streaks

    12 QUALITY OF CUT 12.6 STREAKS ________________________________________________________________ A streak is a line of grass that is not cut. The cause of a streak can be a damaged blade. TN0224 NOTE: Arrow indicates direction of travel. Probable Cause Remedy Damaged blade(s). Replace the blade(s).

  • Page 79: Windrowing

    QUALITY OF CUT 12 12.7 WINDROWING ____________________________________________________________ Windrowing is the deposit of clippings increased at one end of cutting unit(s) or between cutting units. Windrowing can make a line in the direction of travel. TN0225 NOTE: Arrow indicates direction of travel. Probable Cause Remedy The grass is higher than the level at which the mower...

  • Page 80: Mismatched Cutting Units

    12 QUALITY OF CUT 12.8 MISMATCHED CUTTING UNITS ______________________________________________ Mismatched cutting units is a pattern of different cutting heights, that gives the grass a stepped cut appearance. THis appearance is normally because of a mismatched HOC (height-of-cut) adjustment from one cutting unit to another unit.
  • Page 81 NOTES 13 13Notes...
  • Page 82 Europe & Rest of The World Except North & South America Ransomes Jacobsen Limited West Road, Ransomes Europark, Ipswich, IP3 9TT English Company Registration No. 1070731 www.ransomesjacobsen.com North & South America Jacobsen, A Textron Company 11108 Quality Drive, Charlotte, NC 28273, USA www.Jacobsen.com When Performance Matters. ™...

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