Bush Hog SQ84T SQUEALER Operator's Manual
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Bush Hog SQ84T SQUEALER Operator's Manual

Dual spindle offset lift type rotary mower
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SQ84T
SQUEALER
Lift Type Rotary Mower
Published 12/21
Part No. 50075492
OPERATOR'S MANUAL
©2021 Alamo Group Inc.

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  • Page 1 SQ84T SQUEALER Lift Type Rotary Mower Published 12/21 Part No. 50075492 OPERATOR’S MANUAL ©2021 Alamo Group Inc.
  • Page 2 PELIGRO DANGER Si vous ne pouvez pas lire Si no puede leer inglés: antes de poner en l'anglais: avant d'utiliser funcionamiento este equipo, solicite que l'équipement, demandez à une alguien le traduzca los mensajes de personne de vous traduire les seguridad o vaya al sitio web para consultar messages de sécurité...
  • Page 3 Your Authorized Bush Hog Dealer may have shown this video and presented you a DVD Video when you purchased your mower. If you or any mower operator have not seen this video, Watch the Video, Read this Operator’s Manual, and Complete the Video Guidebook before operating your new mower.
  • Page 4 Bush Hog will provide one (1) AEM Mower Safety Practices Video Please Send Me: VHS Format – AEM/FEMA Mower Operator Safety Video DVD Format – AEM/FEMA Mower Operator Safety Video Mower Operator’s Manual AEM Mower Operator’s Safety Manual Requester Name:________________________________________Phone:...
  • Page 5 A Manual canister is provided on the implement where this manual can be properly stored. If you lose or damage this manual a free replacement manual can be obtained from an authorized Bush Hog dealer or by down loading the manual from the Bush Hog website www.bushhog.com...
  • Page 6 DEALER to CUSTOMER Pre-Delivery/ Operation Instructions Dealer should inform the Purchaser of this product of Warranty terms, provisions, and procedures that are applicable.Dealer should inform Purchaser to review the contents of the Operator’s Manual including safety equipment, safe operation, and maintenance, to review the Safety Signs on the implement (and tractor if possible), and of Purchaser’s responsibility to train his/her operators’s in safe operation procedures.

  • Page 7: Table Of Contents

    SETUP INSTRUCTIONS - TAILWHEEL ......................3-4 DRIVELINE ATTACHMENT - SLIP CLUTCH ....................3-5 SLIP CLUTCH ADJUSTMENT and OPERATIONAL CHECK ................3-5 BUSH HOG SQUEALER SLIP CLUTCHES ..................... 3-5 DRIVELINE ATTACHMENT - SHEAR BOLT ....................3-6 OPERATION SECTION ...................... 4-1 OPERATOR REQUIREMENTS ........................4-3 TRACTOR REQUIREMENTS ...........................
  • Page 8 SETTING THE MOWER ..........................4-10 Setting Mower Height- Lift Type - (Standard or Quick Hitch) ................4-10 Setting Deck Pitch ............................4-12 DRIVELINE ATTACHMENT ........................... 4-12 Driveline Length Check ........................... 4-13 PRE-OPERATION INSPECTION AND SERVICE ..................4-15 Tractor Pre-Operation Inspection/Service ....................... 4-16 Mower Pre-Operation Inspection/Service .......................

  • Page 9: Safety Section

    SAFETY SECTION Safety Section 1-1 © 2021 Alamo Group Inc.

  • Page 10: General Safety Instructions And Practices

    SAFETY GENERAL SAFETY INSTRUCTIONS AND PRACTICES A careful operator is the best operator. Safety is of primary importance to the manufacturer and should be to the owner/operator. Most accidents can be avoided by being aware of your equipment, your surroundings, and observing certain precautions.

  • Page 11: Operator Safety

    SAFETY OPERATOR SAFETY SQ84T 12/21 Safety Section 1-3 © 2021 Alamo Group Inc.

  • Page 12: Connection Or Disconnecting Implement Safety

    SAFETY CONNECTION OR DISCONNECTING IMPLEMENT SAFETY SQ84T 12/21 Safety Section 1-4 © 2021 Alamo Group Inc.

  • Page 13: Crushing Hazards

    SAFETY CRUSHING HAZARDS SQ84T 12/21 Safety Section 1-5 © 2021 Alamo Group Inc.

  • Page 14: Thrown Objects Hazards

    SAFETY THROWN OBJECTS HAZARDS SQ84T 12/21 Safety Section 1-6 © 2021 Alamo Group Inc.

  • Page 15: Thrown Objects Hazards (Continued)

    SAFETY THROWN OBJECTS HAZARDS (CONTINUED) SQ84T 12/21 Safety Section 1-7 © 2021 Alamo Group Inc.

  • Page 16: Run Over Hazards

    SAFETY RUN OVER HAZARDS SQ84T 12/21 Safety Section 1-8 © 2021 Alamo Group Inc.

  • Page 17: Pto Entanglement Hazards

    SAFETY PTO ENTANGLEMENT HAZARDS SQ84T 12/21 Safety Section 1-9 © 2021 Alamo Group Inc.

  • Page 18: Mower Blade Contact Hazards

    SAFETY MOWER BLADE CONTACT HAZARDS SQ84T 12/21 Safety Section 1-10 © 2021 Alamo Group Inc.

  • Page 19: High Pressure Oil Leak Hazards

    SAFETY HIGH PRESSURE OIL LEAK HAZARDS SQ84T 12/21 Safety Section 1-11 © 2021 Alamo Group Inc.

  • Page 20: Electrical & Fire Hazards

    SAFETY ELECTRICAL & FIRE HAZARDS TO AVOID DEATH OR SERIOUS INJURY FROM ELECTRICAL CONTACT WHEN WORKING AROUND ELECTRICAL POWER LINES, GAS LINES AND UTILITY LINES: • INSPECT mowing area for overhead or underground electrical power lines, obstructions, gas lines, cables and Utility, Municipal, or other type structure. •...

  • Page 21: Transporting Hazards

    SAFETY TRANSPORTING HAZARDS SQ84T 12/21 Safety Section 1-13 © 2021 Alamo Group Inc.

  • Page 22: Hazards With Maintenance Of Implement

    SAFETY HAZARDS WITH MAINTENANCE OF IMPLEMENT AVOID DEATH OR SERIOUS INJURY FROM COMPONENT FAILURE BY KEEPING IMPLEMENT IN GOOD OPERATING CONDITION PERFORMING PROPER SERVICE, REPAIRS AND MAINTENANCE. BEFORE PERFORMING SERVICE, REPAIRS AND MAINTENANCE ON THE IMPLEMENT: SECURE EQUIPMENT FOR SERVICE BLOCK OUT POTENTIAL ENERGY HAZARDS;...

  • Page 23: Parts Information

    PARTS INFORMATION PARTS INFORMATION Bush Hog mowers use balanced and matched system components for blade carriers, blades, cuttershafts, knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Bush Hog specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will fit”...

  • Page 24: Decal Location

    SAFETY Decal Location NOTE: Bush Hog supplies safety decals on this product to promote safe operation. Damage to the decals may occur while in shipping, use, or reconditioning. Bush Hog cares about the safety of its customers, operators, and bystanders, and will replace the safety decals on this product in the field, free of charge (Some shipping and handling charges may apply).
  • Page 25 D581 Chart Decal Lubrication D454 Warning Crushing Hazard Serial No. Decal Serial No. D559 Important Genuine Parts 50056692 Logo Decal Bush Hog 53315 Reflector Amber D549 Decal Sheet Multi Hazard D813 Danger Multi Lingual 50074259 Flag Decal Made in USA...

  • Page 26: Decal Description

    SAFETY Decal Description WARNING Crushing Hazard To avoid injury from Shipping mower falling over: Bracket DO NOT store mower vertically on shipping brackets. Store mower lying down. D454 DANGER TO AVOID DEATH OR SERIOUS INJURY FROM DRIVELINE CONTACT, DRIVELINE SEPARATION OR PTO STUB SHAFT FAILURE: STOP, LOOK and LISTEN for rotating motion before approaching implement.
  • Page 27 SAFETY DANGER DANGER THROWN OBJECTS HAZARD D549_1 Mower can throw objects up to 300 feet. TO AVOID DEATH OR SERIOUS INJURY to operator or bystanders: STOP mowing if bystanders or traffic come within 300 feet. DO NOT OPERATE with thrown object shielding removed. KEEP thrown object shielding in place and in good condition during operation.
  • Page 28 SAFETY ENTANGLEMENT HAZARD TO AVOID DEATH OR SERIOUS INJURY: DO NOT operate without guards in place and in good condition. PTO and gearbox guarding are SUBJECT TO WEAR. STAY AWAY and KEEP hands, feet and body AWAY from rotating blades, drivelines and parts that continue to move Tractor PTO Guard after power shut-off.
  • Page 29 SAFETY WARNING TO AVOID DEATH OR SERIOUS INJURY FROM BLADE ATTACHMENT FAILURE: Torque pan nut (450 ft lbs) and blade nut (600 ft lbs) after first 8 hours of use to ensure proper seating and tightness of components. ALWAYS replace blades in pairs. ALWAYS replace blades with new bolts and nuts.
  • Page 30 SAFETY PELIGRO DANGER Si vous ne pouvez pas lire Si no puede leer inglés: antes de poner en l'anglais: avant d'utiliser funcionamiento este equipo, solicite que l'équipement, demandez à une alguien le traduzca los mensajes de personne de vous traduire les seguridad o vaya al sitio web para consultar messages de sécurité...

  • Page 31: Federal Laws And Regulations

    SAFETY Federal Laws and Regulations This section is intended to explain in broad terms the concept and effect of federal laws and regulations concerning employer and employee equipment operators. This section is not intended as a legal interpretation of the law and should not be considered as such.
  • Page 33 Contents Acknowledgment ......2 Foreword ........2 Safety Alerts.

  • Page 34: Safety Alerts

    Safety Alerts Symbol Signal Words This Safety Alert Symbol means: “ATTENTION! Signal words are distinctive words that will typically be STAY ALERT! YOUR SAFETY IS INVOLVED!” found on safety signs on the mower and other worksite equipment. These words may also be found in this The Safety Alert Symbol identifi es important safety manual and the manufacturer’s manuals.

  • Page 35: The Industrial/Agricultural Mower

    The Industrial/Agricultural Mower Industrial/Agricultural Mower Types Mowers are used for pasture clipping, crop residue shredding, heavy brush cutting, waterways, right-of- Flail ways, roadside or highway mowing. Also, these mowers are used for cutting grass and other growth in public areas such as parks and cemeteries. Boom Rotary Sickle Bar...

  • Page 36: Follow A Safety Program

    Follow A Safety Program Protect Yourself Wear personal protective clothing and Personal Protective Equipment (PPE) issued to you or called for by job conditions. You must ALWAYS wear safety glasses with side shields. You may also need: — Hard hat —...
  • Page 37 Follow A Safety Program Avoid Injury From Raised Equipment Avoid Injury From High Pressure Fluid Avoid possible crushing injury from falling mower or Avoid fl uid injection injury due to high pressure fl uid leaks. other raised equipment. High Pressure Fluid Can Inject into the Body Avoid Crushing –...
  • Page 38 Follow A Safety Program Be Alert! For Safe Operation Know where to get assistance. Know how to use a fi rst You must be a qualifi ed and authorized operator for aid kit and fi re extinguisher/fi re suppression system. proper operation of your machine.
  • Page 39 Follow A Safety Program Some Rules You Must Work By (continued) Keep — Only qualifi ed and authorized individuals may operate Children this equipment. Away from — Never allow children to play on, ride on or operate Equipment the equipment. Children are not qualifi ed to operate this equipment.

  • Page 40: Prepare For Safe Operation

    Prepare For Safe Operation Check The Mower And Tractor Equipment Before beginning your work day inspect the machine Walk-Around and have all systems in good operational condition. Inspection WARNING! Prevent possible crushing injury from falling equipment. Hydraulic system or part failure could cause unsupported equipment to fall.
  • Page 41 Prepare For Safe Operation Know The Work Area Correct unsafe conditions. Do not operate in problem areas where debris and obstacles cannot be removed Before you operate the mower thoroughly inspect or marked. the work area. Walk around the area and inspect the Analyze mowing area to determine: surfaces you will travel on when using the mower.
  • Page 42 Prepare For Safe Operation Tractor And Mower Controls Safety Test — Raise and lower mower to check for driveline bottoming out or engagement problems. Start the tractor following the specifi c procedures in the — Check the equipment for excessive vibration and manufacturer’s operator’s manual.
  • Page 43 Prepare For Safe Operation Hitching Mower To Tractor Read and Three-point hitch-mounted mowers: Understand Manuals Before — Refer to mower and tractor manufacturers’ manuals. Operating — Place tractor’s hydraulic power lift (rockshaft) selector lever in down position to avoid unexpected movement.

  • Page 44: Start Safely

    Start Safely Make The Right Start Mow only in daylight or good artifi cial light conditions. Rotating Blades – Avoid serious injury or death from mower-thrown Keep Away objects or blade contact: — Keep chain shields, fl exible or solid defl ector shields or discharge chutes in place and in good repair.
  • Page 45 Operate Safely Mower-Thrown Objects (continued) Disc Mowers — When using a disc mower it is Do Not Mow important to know the area to be mowed. If the operator in Reverse has mowed the fi eld before and is familiar with all obstacles that may be present, it is suffi cient to watch ahead of the mower path for any additional objects that may have entered the fi eld.
  • Page 46 Operate Safely Under Mount Mower Safety Practices When mowing with an under mount mower: Never Stand — Keep removable discharge chute in place and over on Mower – Keep Away discharge opening. — Never stand on a mower housing when the tractor engine is operating.
  • Page 47 Operate Safely Wing And Side Mount Mowers Safety Practices 300 ft (92 m) Raised wing positions reduce shielding protection and Keep Bystanders increases the thrown object and blade contact hazard Away from risks. Mowing Area Avoid possible serious injury or death by thrown objects or blade contact from raising and lowering wings during mowing operations: —...
  • Page 48 Operate Safely Uneven Terrain Mowing Safety Practices (continued) Maintain — Use extreme care to maintain control over the Control, Use Low equipment when operating in these conditions. Speeds — Increase tractor stability by adding wheel weights, ballast and increasing wheel spacing to maximum. Refer to operator’s manual for recommendations.

  • Page 49: Park Safely

    Park Safely Parking Safety Practices — Use designated or out-of-traffi c areas. — Use fi rm level ground locations. Parking Brake — Set parking brake. — Lower raised equipment to ground. Shut down the mower and tractor using proper equipment shut down practice before dismounting tractor.

  • Page 50: Perform Maintenance Safely

    Shut Down Safely Dismounting Properly — Never dismount from moving equipment. Wait for — Never jump from any machines. Moving Parts to Stop — Dismount carefully. — Check for slippery steps. — Keep feet and hands away from controls. — Use handholds and steps during dismount. —...
  • Page 51 Perform Maintenance Safely Prepare Yourself Wear personal protective clothing and Personal Protective Equipment (PPE) issued to you or called for by job conditions. You must ALWAYS wear safety glasses with side shields. You may also need: — Hard hat — Safety shoes —...
  • Page 52 Perform Maintenance Safely Prepare The Machine — Securely support, block up, or lock up mower wings with approved locking devices before working near or Stored energy sources (electrical, mechanical, hydraulic, underneath a wing mower. pneumatic, chemical, thermal, etc.) must be controlled —...
  • Page 53 Perform Maintenance Safely Perform Maintenance Safely Use Proper Ventilation Make sure the hoists or jacks you use are in good repair. Never use jacks with cracked, bent, or twisted parts. If it is necessary to run an engine in an enclosed area, Never use frayed, twisted or pinched cables.
  • Page 54 Perform Maintenance Safely Hydraulic System Hazards When venting or fi lling the hydraulic system, loosen the fi ller cap slowly and remove it gradually. The hydraulic system is under pressure whenever the Never reset any relief valve in the hydraulic system to a engine is operating and may hold pressure even after the pressure higher than recommended by the manufacturer.
  • Page 55 Perform Maintenance Safely Avoid Explosion — Observe the polarity of the batteries and connections. — Make the fi nal cable connection to the engine or the WARNING! Avoid possible serious injury from furthest ground point away from the battery. Never explosion.
  • Page 56 Perform Maintenance Safely Tire And Wheel Maintenance (continued) Never cut or weld on a wheel with an infl ated tire mounted on it. This could cause explosive WARNING! The types of wheels and tires usually decompression. found on this equipment require special care when Check that the tire size and wheel are correctly matched.

  • Page 57: Final Word To The User

    Perform Maintenance Safely Mower Blade Maintenance (continued) — Avoid bending blades. Help prevent mower blades from bending or cracking by avoiding contact with — How are mower blades made? solid objects. Mower blades are intended to cut Mower blades are made of high strength alloy spring grass, shrubs, woody vegetation, and small trees and steel.

  • Page 59: Reconocimiento

    Contenido Reconocimiento ....... 2 Introducción ........2 Alertas de seguridad .

  • Page 60: Alertas De Seguridad

    Alertas de seguridad Símbolo Palabras indicativas Este símbolo de alerta de seguridad signifi ca: Las palabras indicativas son palabras distintivas que “¡ATENCIÓN! ¡MANTÉNGASE ALERTA! ¡SU típicamente se encontrarán en letreros de seguridad SEGURIDAD ESTÁ EN RIESGO!” de la cortadora de césped y otros equipos del sitio de trabajo.

  • Page 61: Cortadora De Césped Industrial/Para Agricultura

    Cortadora de césped industrial/para agricultura Tipos de cortadora de césped industrial/para agricultura Las cortadoras de césped se usan para recortar pasturas, Triturador desmenuzar residuos de cultivos, cortar arbustos, realizar desbroce pesado, cortar la hierba en vías de agua, derechos de paso, costados de caminos o autopistas. Además, estas cortadoras se usan para cortar la hierba y otras plantas en zonas públicas como parques y cementerios.

  • Page 62: Cumplimiento Del Programa De Seguridad

    Cumplimiento del programa de seguridad Protéjase a sí mismo Use la ropa de protección personal y los equipos de protección personal (PPE) que se le proporcionen o que requieran las condiciones del trabajo. SIEMPRE debe usar gafas de seguridad con escudos laterales. Puede necesitar también: —...
  • Page 63 Cumplimiento del programa de seguridad Evite las lesiones provocadas por equipos elevados Si un fl uido se inyecta en la piel, debe ser extraído dentro de pocas horas por personal médico Evite posibles lesiones de aplastamiento por caídas de la familiarizado con este tipo de lesión.
  • Page 64 Cumplimiento del programa de seguridad ¡Manténgase alerta! Para una operación segura Sepa dónde obtener asistencia. Sepa cómo usar un Usted debe ser un operador cualifi cado y autorizado equipo de primeros auxilios y un extintor de incendios/ para operar la máquina correctamente. Debe comprender sistema de supresión de fuego.
  • Page 65 Cumplimiento del programa de seguridad Algunas reglas que debe cumplir al trabajar (continuación) Mantenga — Únicamente personas cualifi cadas y autorizadas a los niños alejados pueden manejar estos equipos. de los equipos — Nunca permita que los niños jueguen en los equipos, viajen en ellos o los hagan funcionar.

  • Page 66: Preparación Para Una Operación Segura

    Preparación para una operación segura Revise los equipos de la cortadora de césped y el marcadas; incluya los pernos y sujetadores de las hojas. Nunca enderece o suelde en las hojas. tractor — Asegúrese de que el escudo para objetos que son Antes de comenzar la jornada de trabajo, inspeccione la arrojados se encuentre correctamente instalado y en buen máquina y asegúrese de que todos los sistemas estén en...
  • Page 67 Preparación para una operación segura Familiarícese con la zona de trabajo Corrija las condiciones no seguras. No opere en áreas con problemas donde no se puedan retirar o marcar los Antes de hacer funcionar la cortadora de césped, residuos y los obstáculos. inspeccione cuidadosamente la zona de trabajo.
  • Page 68 Preparación para una operación segura Prueba de seguridad de los controles del tractor y de la cortadora de césped Use el ROPS Arranque el tractor siguiendo los procedimientos y el cinturón de seguridad específi cos del manual del operador del fabricante. Estos procedimientos normalmente incluyen: —...
  • Page 69 Preparación para una operación segura Enganche de la cortadora de césped al tractor Lea y asegúrese Cortadoras montadas en enganche de tres puntos: de comprender los — Consulte los manuales de los fabricantes de la manuales antes de comenzar la cortadora y del tractor.

  • Page 70: Arranque Con Seguridad

    Arranque con seguridad Cómo realizar un arranque correcto Corte la hierba únicamente con luz diurna o en condiciones de buena luz artifi cial. Hojas giratorias – Manténgase Evite lesiones graves o muerte producidas por objetos arrojados por la cortadora o por el contacto con las hojas: —...
  • Page 71 Operación con seguridad Objetos arrojados por la cortadora de césped Apague la TDF, espere que las hojas dejen de girar, eleve la cortadora y, después, retroceda. (continuación) Corte desplazándose en sentido de avance. Cortadoras de disco — Cuando se usa una cortadora de disco, es importante conocer la zona donde se va a cortar.
  • Page 72 Operación con seguridad Prácticas de seguridad para la cortadora de césped de montaje inferior Nunca se pare sobre la cortadora Cuando se traslada con una cortadora de césped de de césped – montaje inferior: Manténgase alejado — Mantenga la rampa de descarga extraíble en su lugar y por encima de la abertura de descarga.
  • Page 73 Operación con seguridad Prácticas de seguridad para cortadoras de 300 ft césped con laterales y montaje lateral (92 m) Mantenga a las personas ajenas Las posiciones elevadas de los laterales reducen la alejadas de la zona protección de los escudos y aumentan los riesgos de de corte objetos arrojados y contacto con las hojas.
  • Page 74 Operación con seguridad Prácticas de seguridad para trabajos de corte en terrenos desparejos (continuación) Mantenga — Use extremo cuidado para mantener el control de los el control, equipos cuando trabaja en estas condiciones. desplácese — Aumente la estabilidad del tractor agregando pesos o lastre en las ruedas y aumentando al máximo la separación entre las ruedas.

  • Page 75: Estacionamiento Seguro

    Estacionamiento seguro Prácticas de seguridad para el estacionamiento — Use las zonas designadas o alejadas del tránsito. Aplique el freno de — Use lugares con suelo fi rme y nivelado. estacionamiento — Aplique el freno de estacionamiento. — Descienda el equipo de la cortadora de césped hasta el suelo.

  • Page 76: Realización De Mantenimiento Con Seguridad

    Apagado con seguridad Descenso correcto — Nunca descienda de equipos en movimiento. Espere hasta que las — Nunca baje de una máquina saltando. piezas móviles se detengan — Descienda con cuidado. — Verifi que que no haya peldaños resbaladizos. — Mantenga los pies y las manos lejos de los controles. —...
  • Page 77 Realización de mantenimiento con seguridad Preparación personal Use la ropa de protección personal y los equipos de protección personal (PPE) que se le proporcionen o que requieran las condiciones del trabajo. SIEMPRE debe usar gafas de seguridad con escudos laterales. Puede necesitar también: —...
  • Page 78 Realización de mantenimiento con seguridad Preparación de la máquina Deben controlarse o reducirse las fuentes de energía Prepare los sistemas de la almacenada (eléctricas, mecánicas, hidráulicas, máquina para neumáticas, químicas, térmicas, etc.) al mínimo realizarles servicios practicable antes de realizar cualquier procedimiento de mantenimiento, reparación o servicio.
  • Page 79 Realización de mantenimiento con seguridad Use ventilación adecuada Si es necesario hacer funcionar un motor en una zona Retire la llave y cerrada, elimine del área las emanaciones de escape lea el manual de con una extensión del caño de escape. Si no tiene esa mantenimiento extensión, asegúrese de abrir las puertas y dejar entrar aire del exterior.
  • Page 80 Realización de mantenimiento con seguridad Riesgos del sistema hidráulico Cuando ventila o llena el sistema hidráulico, afl oje la tapa de llenado con lentitud y retírela gradualmente. El sistema hidráulico se encuentra bajo presión siempre Nunca restablezca una válvula de alivio del sistema que el motor está...
  • Page 81 Realización de mantenimiento con seguridad Evite explosiones — Asegúrese de que las máquinas no se estén tocando. — Observe la polaridad de las baterías y conexiones. ¡ADVERTENCIA! Evite posibles lesiones graves por — Realice la conexión fi nal de cable al motor o al punto explosiones.
  • Page 82 Realización de mantenimiento con seguridad Mantenimiento de neumáticos y ruedas (continuación) Evite la explosión ¡ADVERTENCIA! Los tipos de ruedas y neumáticos de los neumáticos que generalmente se encuentran en estos equipos requieren cuidados especiales al realizar servicios para evitar lesiones graves o la muerte. No infl e los neumáticos por encima de la presión No infl e neumáticos con gases infl amables o con sistemas recomendada.

  • Page 83: Palabras Fi Nales Para El Usuario

    Realización de mantenimiento con seguridad Mantenimiento de las hojas de la cortadora — Evite doblar las hojas. Contribuya a prevenir que las hojas de la cortadora se doblen o rajen evitando el (continuación) contacto con objetos sólidos. Las hojas de la cortadora —...
  • Page 85 INTRODUCTION SECTION Introduction Section 2-1 © 2021 Alamo Group Inc.
  • Page 86 INTRODUCTION We are pleased to have you as a Bush Hog customer. Your Rotary Cutter has been carefully designed with care and built with quality materials by skilled workers to give maximum service with minimum down time. This manual is provided to give you the necessary operating and maintenance instructions for keeping your rotary cutter in top operating condition.
  • Page 87 10. Input Gearbox 11. Outboard Gearbox The SQ84T Squealer Rotary Mower is designed for light duty applications such as weeds, grass, and light brush.This mower is dual spindle with four free-swinging blades. Each cutter has free-swinging blades which reduce the shock of impact when a stationary object is hit. The SQ84T has a slip clutch standard. Standard equipment includes driveline shields, clutch shields and front and rear discharge shields (deflectors).
  • Page 88 INTRODUCTION KEY OPERATION POINTS • Cutting performance and distribution are best when cutter is level from side to side and front to rear. • In extra heavy material, rear chains will allow better discharge and better distribution than solid rear bands. •...
  • Page 89 INTRODUCTION SQ84T 12/21 Introduction Section 2-5 © 2021 Alamo Group Inc.
  • Page 90 INTRODUCTION SQ84T 12/21 Introduction Section 2-6 © 2021 Alamo Group Inc.
  • Page 91 ASSEMBLY SECTION Assembly Section 3-1 © 2021 Alamo Group Inc.
  • Page 92 ASSEMBLY DEALER SETUP INSTRUCTIONS The mower as received from the factory is partially assembled and requires minimum time to complete assembly and is ready for sale. Some models may be shipped vertically with shipping brackets. These shipping brackets are intended for use in transporting the mower from the factory to dealer.
  • Page 93 SETUP INSTRUCTIONS - SHIELDING AND DEFLECTORS The Bush Hog SQ84T as shipped from the factory, have all Shielding and Deflectors in place. Dealer should inspect to make sure that all Safety Shielding and Deflectors are in place and fasteners are tight.
  • Page 94 ASSEMBLY SETUP INSTRUCTIONS - TAILWHEEL Bush Hog SQ84T models as shipped from the factory Tailwheel Frame and Tailwheel mounted to the unit. ADJUSTING FOR WORK The cutter should be operated at the highest position which will give desired cutting results. This will help prevent the blades from striking the ground, reducing blade wear and undue strain on the machine.
  • Page 95 ASSEMBLY DRIVELINE ATTACHMENT - SLIP CLUTCH Before starting assembly, make certain that all paint, dirt, and grease are removed from gearbox shaft (1). To ease assembly apply a light coat of grease to splines and assemble. Do not assemble a driveline without a shield. Entanglement in rotating shafts can kill.
  • Page 96 Ops-0009-MISC BUSH HOG SQ84T SLIP CLUTCHES Bush Hog SQ84T Rotary Cutters come with Comer driveshafts with slip clutches installed. While these clutches are similar. Refer to Figure below to help identity which clutch you are adjusting. Comer castings have centrally located holes through them.
  • Page 97 OPERATION SECTION Operation Section 4-1 © 2021 Alamo Group Inc.
  • Page 98 BUSH HOG SQ84T ROTARY MOWER OPERATION INSTRUCTIONS Bush Hog rotary mowers are manufactured with quality material by skilled workers. This mower is designed to cut grass, weeds, small brush and other vegetative material up to 1-1/2” diameter in areas such as pastures, industrial areas, and roadsides.
  • Page 99 OPERATION 1. OPERATOR REQUIREMENTS Safe operation of the unit is the responsibility of a qualified operator. A qualified operator has read and understands the implement and tractor Operator’s Manuals and is experienced in implement and tractor operation and all associated safety practices. In addition to the safety messages contained in this manual, safety signs are affixed to the implement and tractor.
  • Page 100 OPERATION 2. TRACTOR REQUIREMENTS The tractor used to operate the mower must have the power capacity to lift, pull, and operate the Power Take Off (PTO) at the mower’s rated speed while traveling at a ground speed between 2 and 5 MPH. Operating the mower with a tractor that does not meet the following requirements may cause tractor or mower damage and be a potential danger to the operator and passersby.
  • Page 101 OPERATION 2.3 Tractor Horsepower The power required to operate a mower is determined by the tractor PTO horsepower. For most mowing conditions the SQ84T is 30 HP. Operating the mower with a tractor that does not have adequate power may damage the tractor engine.
  • Page 102 OPERATION DO NOT use a PTO adapter to attach a non-matching Implement driveline to a Tractor DANGER PTO. Use of an adapter can double the operating speed of the Implement resulting in excessive vibration, thrown objects, and blade and implement failure. Adapter use will also change the working length of the driveline exposing unshielded driveline areas.
  • Page 103 OPERATION 3.1 Boarding the Tractor Use both hands and equipped handrails and steps for support when boarding the tractor. Never use control levers for support when mounting the tractor. Seat yourself in the operator’s seat and secure the seat belt around you.
  • Page 104 OPERATION 4. STARTING THE TRACTOR The operator must have a complete understanding of the placement, function, and operational use of all tractor controls before starting the tractor. Review the tractor operator’s manual and consult an authorized dealer for tractor operation instructions if needed. Essential Tractor Controls: •...
  • Page 105 OPERATION Always shut the Tractor completely down, place the transmission in park, and set the DANGER parking brake before you or anyone else attempts to connect or disconnect the Implement and Tractor hitches. 5.1 Connecting the Mower-Lift Type 1. Make sure the tractor is equipped with the correct PTO shaft.

  • Page 106: Setting The Mower

    OPERATION 6. SETTING THE MOWER Properly setting the cutting height is essential for efficient and safe operation. A properly set mower will make a more uniform cut, distribute clippings more evenly, require minimal tractor work, and follow the contour of uneven terrain.
  • Page 107 OPERATION 8. Extend the tractor’s top 3-point link so that when lifting the mower, the front of the deck will raise 2 to 2½” before the tail wheel leaves the ground. This will allow the mower to follow the contour of uneven terrain. Note: Install optional check chains when there is a problem with the hydraulic 3-Point lift maintaining a set height or when a constant pre-adjusted cut...

  • Page 108: Setting Deck Pitch

    OPERATION 6.2 Setting Deck Pitch Lower Horse Power - Better Fuel Efficiency To increase fuel efficiency and lower horsepower requirements for mower operation, the mower should be operated with the deck approximately 3/ 4" LOWER IN THE FRONT THAN THE REAR. Operating the mower at this pitch will allow the mower to cut the grass only once and requires less work from the tractor.

  • Page 109: Driveline Length Check

    Contact authorized Bush Hog dealer. NOTE: If driveline is the correct length, omit the following steps 8 - 11 and proceed to step 12.
  • Page 110 OPERATION 7. Clamp driveline in a well padded vice to prevent damage to the shield. Cut off shield where marked. 8. Using cut off section of shield as a guide, cut shaft the same amount. 9. Repeat steps for other driveline section. 10.

  • Page 111: Pre-Operation Inspection And Service

    OPERATION 8. PRE-OPERATION INSPECTION AND SERVICE Before each use, a pre-operation inspection and service of the implement and tractor must be performed. This includes routine maintenance and scheduled lubrication, inspecting that all safety devices are equipped and functional, and performing needed repairs. DO NOT operate the unit if the pre-operation inspection reveals any condition affecting safe operation.

  • Page 112: Tractor Pre-Operation Inspection/Service

    OPERATION 8.1 Tractor Pre-Operation Inspection/Service Refer to the tractor operator’s manual to ensure a complete pre-operation inspection and scheduled service performed according manufacturers recommendations. The following are some of the items that require daily service and inspection: • Tire condition/air pressure •...
  • Page 113 OPERATION • Perform scheduled lubrication as detailed in the maintenance section. • Ensure all safety signs are in place and legible. • Ensure the driveline is securely attached to tractor. Make sure the driveline yoke locking collar is securely seated in the grooves of the PTO shaft by pushing and pulling the yoke several times.
  • Page 114 OPERATION • Lift Type-Ensure the tailwheel support bolts are properly installed and tightened. • Inspect all bolts and screws and tighten to the recommended torque. OPS-R-0039_H • Ensure the tractor PTO master shield and the mower slip clutch shield are in place, lowered, and in good condition.

  • Page 115: Cutting Component Inspection

    OPERATION • Inspect blades and blade bolts for looseness and excessive wear. Make sure the mower is securely blocked up before crawling beneath. Replace damaged, worn and missing blades as complete sets to maintain rotary balance during operation. • Ensure blade pan nut is tightened with the cotter pin inserted and spread.
  • Page 116 OPERATION Operating the mower with loose blade hardware will damage the blade holder or blades and can result in blade breakage or blade fastener failure. Broken blades or bolts can be thrown out from under the mower for distances up to 300 feet. When the blades are replaced, the fastening hardware must be replaced.
  • Page 117 OPERATION Inspect the Blades daily for abnormal wear. REPLACE BOTH BLADES on that carrier DANGER IMMEDIATELY if either blade has: • Become bent or deformed from it’s original shape or • Any cracks are visible, or • Deep gouges in the blade’s surface are present, or •...

  • Page 118: Blade Bolt Inspection

    OPERATION 8.4 Blade Bolt Inspection Inspect Blade Bolt Head daily for wear as followed: Inspect the Blade Bolt Heads daily for abnormal wear. REPLACE BOTH BLADE BOLTS on DANGER the Blades IMMEDIATELY if either blade bolts has: • Visible cracks or •...
  • Page 119 OPERATION Rotary Mower PRE-OPERATION Inspection Mower ID#________________ Make ____________________ Date: ________________ Shift ____________________ Before conducting the inspection, make sure the tractor engine is off, all rotation has stopped and the tractor is in park with the parking brake engaged. Make sure the mower is resting on the ground or securely blocked up and all hydraulic pressure has been relieved.
  • Page 120 OPERATION Tractor PRE-OPERATION Inspection Tractor ID#:________________________Make:________________________ Date:______________________________Shift:________________________ Before conducting the inspection, make sure the tractor engine is off, all rotation has stopped and the tractor is in park with the parking brake engaged. Make sure the implement is resting on the ground or securely blocked up and all hydraulic pressure has been relieved.

  • Page 121: Driving The Tractor And Implement

    OPERATION 9. DRIVING THE TRACTOR AND IMPLEMENT Safe tractor transport requires the operator possess a thorough knowledge of the model being operated and precautions to take while driving with an attached implement. Ensure the tractor has the capacity to handle the weight of the implement and the tractor operating controls are set for safe transport.

  • Page 122: Starting The Tractor

    OPERATION 9.1 Starting the Tractor The procedure to start the tractor is model specific. Refer to the tractor operator’s manual for starting procedures for your particular tractor. Consult an authorized dealer if the starting procedure is unclear. Ensure the 3-point control lever is in the lowered position and the PTO is disengaged before starting the tractor.

  • Page 123: Raising The Mower

    OPERATION 9.3 Raising the Mower Using the tractor 3-point hitch control lever, raise the mower off the ground about 6”, or just high enough to clear any ground obstacles. When raising the mower, make sure all connection points are securely attached and at least 1” clearance is maintained between the driveline and the deck.

  • Page 124: Crossing Ditches And Steep Inclines

    OPERATION 9.5 Crossing Ditches and Steep Inclines When crossing ditches with steep banks or going up sharp inclines, it is possible that the main driveline inner profile will penetrate into the outer housing to its maximum depth until the assembly becomes solid (driveline is at its extreme shortest length).

  • Page 125: Operating The Tractor And Implement

    OPERATION Inclines and ditches should be approached along a line which is at an angle as shown. This type of path will reduce the possibility of over-collapse of the driveline and resulting damage. If the gradient is so steep that such an approach increases the possibility of a tractor roll-over, select an alternate crossing path.

  • Page 126: Foreign Debris Hazards

    OPERATION Many varied objects, such as wire, cable, rope, or chains, can become entangled in the operating parts of the mower head. These items could then swing outside the housing at greater velocities than the blades. Such a situation is extremely hazardous and could result in serious injury or even death.

  • Page 127: Engaging The Power Take Off (Pto)

    OPERATION Rotary Mowers are capable under adverse conditions of throwing DANGER objects for great distances (300 feet or more) and causing serious injury or death. Follow safety messages carefully. STOP MOWING IF PASSERSBY ARE WITHIN 300 Feet UNLESS: -Front and Rear Deflectors, Chain Guards, or Bands are installed and in good, workable condition;...

  • Page 128: Pto Rpm And Ground Speed

    OPERATION 10.4 PTO RPM and Ground Speed Ground speed for mowing will depend upon the height, type, and density of vegetation to be cut. Recommended speed for efficient mower performance is between 2 and 5 mph(3-8 kph). Operate the mower at its full rated PTO speed to maintain blade speed for a clean cut.
  • Page 129 OPERATION Mow only in conditions where you have clear visibility in daylight or with adequate artificial lighting. Never mow in darkness or foggy conditions where you cannot clearly see at least 300 feet (90 m) in front and to the sides of the tractor and mower. Make sure that you can clearly see and identify passersby, steep slopes, ditches, drop-offs, overhead obstructions, power lines, debris and foreign objects.
  • Page 130 OPERATION Do not let the Blades turn when the Mower Deck is raised for any reason, including clearance or for turning. Raising the Mower deck exposes the Cutting Blades which creates a potentially serious hazard and could cause serious injury or even death from objects thrown from the Blades.

  • Page 131: Right Of Way (Highway) Mowing

    OPERATION Do not mow, or drive the tractor into material that is burning, or areas that recently burnt and may contain hot spots. Burning material, sparks, and coals could be thrown from the mower to areas of vegetation that might ignite.

  • Page 132: Shutting Down The Implement

    OPERATION 10.7 Shutting Down the Implement To shut down attached mower head, first bring the tractor to a complete stop. Decrease engine RPM to idle then disengage cutterhead. The mower head will come to a complete stop within a suitable amount of time.
  • Page 133 OPERATION Always shut the Tractor completely down, place the transmission in park, and set the DANGER parking brake before you or anyone else attempts to connect or disconnect the Implement and Tractor hitches. (S3PT-15) Never unhitch without using the Tongue Jack. The Tongue is very heavy. Attempting to lift the Tongue without using the Tongue Jack could cause strains or other injury.

  • Page 134: Mower Storage

    OPERATION 12. MOWER STORAGE Properly preparing and storing the mower at the end of the season is critical to maintaining its appearance and to help ensure years of dependable service. The following are suggested storage procedures: • Thoroughly clean all debris off the mower to prevent damage from rotting grass and standing water.

  • Page 135: Transporting On Public Roadways

    OPERATION Before transporting the tractor and mower, idle the tractor engine, disengage the PTO and wait for all mower moving parts to come to a complete stop. Once all mower parts are completely stopped, raise the mower to transport height. NOTE: When raising the mower, maintain 1”...
  • Page 136 OPERATION The SMV (Slow-Moving Vehicle) emblem is universal symbol used to alert drivers of the presence of equipment traveling on roadways at a slow speed. SMV signs are a triangular bright orange with reflective red trim for both easy day and night visibility.

  • Page 137: Hauling The Tractor And Implement

    OPERATION Reduce speed before turning or applying the brakes. Ensure that both brake pedals are locked together when operating on public roads. OPS-U- 0023 13.2 Hauling the Tractor and Implement Before transporting a loaded tractor and implement, measure the height and width dimensions and gross weight of the complete loaded unit.

  • Page 138: Trouble Shooting Guide

    OPERATION 14. TROUBLE SHOOTING GUIDE Problem Possible Cause Remedy Uneven Cut Excessive ground speed. Reduce ground speed. Blades worn, dull, or bent. Replace blades. (Refer to "Maintenance" section). Mower not level side to side. Adjust. (Refer to "Assembly" section) Improper height adjustment. Adjust Mower height.
  • Page 139 OPERATION Blade Bolts Working Loose Bolts not tightened. Tighten Bolts to 600 ft./lbs. Bolt hole elongated or oversized. Replace Blade Carrier. Lockwasher Broken. Replace Lockwasher. Gearbox Noisy Low Lubricant. Check lubricant level. Rough gears. Run in or change Gears. Worn Bearing. Replace Bearing.

  • Page 141: Maintenance Section

    MAINTENANCE SECTION Maintenance Section 5-1 ©2021 Alamo Group Inc.

  • Page 142: Hazards With Maintenance Of Implement

    MAINTENANCE HAZARDS WITH MAINTENANCE OF IMPLEMENT SQ84T 12/21 Maintenance Section 5-2 © 2021 Alamo Group Inc.
  • Page 143 MAINTENANCE PARTS INFORMATION Bush Hog mowers use balanced and matched system components for blade carriers, blades, cuttershafts, knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Bush Hog specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will fit”...

  • Page 144: Lubrication

    MAINTENANCE SQ84T LUBE POINTS Lubrication Do not let excess grease collect on or around parts, particularly when operating in sandy areas. The illustrations below shows lubrication points. The chart gives the frequency of lubricationin hours, based on normal operating conditions. Severe or unusual conditions may require more frequent lubrication. Use Multi-Purpose Gear Oil when required in Gearbox.

  • Page 145: Gearbox

    MAINTENANCE GEARBOX NOTE: Make sure mower is level when checking oil in the gearbox.Gearbox capacity is 3 quarts. Oil level should be checked every 8 hours of operation and if oil is needed it should be added to the proper level. To check the oil level in both the gearboxes remove the check plug on the side of the gearbox.
  • Page 146 MAINTENANCE BLADE SERVICING Inspect blades before each use to determine that they are properly installed and in good condition. Replace any blade that is bent, excessively nicked, worn, or has any other damage. Small nicks can be ground out when sharpening. Use only original equipment blades on this cutter.

  • Page 147: Blade Sharpening

    MAINTENANCE BLADE REMOVAL Remove lockwasher and nut from blade bolt through inspection hole in deck of mower near the gearbox to remove blades for sharpening or replacement. See Figure below. Always replace lockwasher and nut when replacing blade bolt. When installing blades be sure and check blade bolt pivot diameter for wear. Replace bolt if worn more than 1/4 inch at any point.

  • Page 148: Blade Carrier Removal

    MAINTENANCE BLADE CARRIER REMOVAL Remove cotter pin and loosen slotted nut on gearbox shaft. Loosen but do not remove the nut until the blade carrier is loosened. Use a suitable 2 jaw gear puller to pull carrier off tapered gearbox shaft. If gear puller is not available use long bar inserted through blade bolt access hole with end against rotor bar.

  • Page 149: Slip Clutch Adjustment

    With tractor at idle speed, engage tractor PTO drive for 2-3 seconds. Clutch should lip without turning blades. If clutch does not slip, contact your authorized Bush Hog dealer. Retighten nuts to within 1/64” of original position. Initial spring length is shown in Figure Below.

  • Page 150: Cross Shaft Removal And Replacement

    MAINTENANCE CROSS SHAFT REMOVAL and REPLACEMENT Removal: It will be necessary to disassemble the flexible coupling in order to remove the Cross shaft assem- bly. During re-assembly it is critical to maintain the blade timing as it was prior to disassembly. Before any disassembly starts make alignment marks as indicated in the illustration below.

  • Page 151: Storage

    MAINTENANCE STORAGE Your rotary cutter represents an investment from which you should get the greatest possible benefit. Therefore, when the season is over, the cutter should be thoroughly checked and prepared for storage so that a minimum amount of work will be required to put it back into operation for the next season. The following are suggested storage procedures: Thoroughly clean the cutter.

  • Page 152: Proper Torque Of Fasteners

    MAINTENANCE PROPER TORQUE FOR FASTENERS The chart lists the correct tightening torque for fasteners. When bolts are to be tightened or replaced, refer to this chart to determine the grade of bolts and the proper torque except when specific torque values are assigned in manual text.

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