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Major 800SM - User Manual

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MAJOR RANGE OF
GRASS TOPPERS
Models: 800SM, 900SM, 9FTGDX & 909HD
Operator Manual
& Parts List
Rev. 201009

Table of Contents

Questions and Answers

  • E
    Edward BlanchardAug 17, 2025
    How to fix Major Farm Equipment that leaves uncut grass?
    • C
      Catherine MeltonAug 17, 2025
      If your Major Farm Equipment leaves a streak of uncut or partially cut grass, several factors could be responsible. The blades might be dull or bent, requiring replacement. Ensure you're using the correct PTO speed. If field conditions are too wet, stop operation until it dries out. Reduce ground speed by shifting to a lower gear. If grass is down from previous weather, mow in only one direction. Clean the mower to remove any material build-up. Finally, ensure the blades are mounted correctly with the cutting edge facing the correct rotation.
  • L
    Laura MillerAug 19, 2025
    Why does my Major Farm Equipment discharge material unevenly?
    • B
      Brandon HudsonAug 20, 2025
      If the Major Farm Equipment discharges material unevenly, leaving bunches along the swath, it could be due to a couple of reasons. If the material is too high or there's too much of it, reduce your ground speed while maintaining 540rpm at the tractor PTO. Alternatively, make two passes over the material, raising the mower for the first pass and lowering it to the desired height for the second, cutting at a 90-degree angle to the first pass. Also, if the grass is wet, allow it to dry before mowing and slow down the tractor's ground speed, keeping the engine running at full PTO rpm.
  • R
    Rachel TaylorAug 22, 2025
    What to do if Major Farm Equipment gearbox is overheating?
    • V
      vgeorgeAug 22, 2025
      If your Major Farm Equipment's gearbox is overheating, there are a couple of things to check. First, make sure the lubricant level is adequate and that you're using the correct type of lubricant; replenish or replace as needed. Also, excessive grass or debris build-up around the gearbox can cause overheating, so remove any accumulated material from the machine.
  • B
    Brandon JohnsonAug 25, 2025
    Why is my Major Farm Equipment vibrating excessively?
    • R
      Richard CollinsAug 26, 2025
      Excessive vibration in your Major Farm Equipment can stem from several issues. Start by checking the gearbox bolts and blade nuts, tightening them if they're loose. Inspect the blades for any breaks and replace them as a set if needed. Ensure that new blades or bolts are not mixed with worn ones, replacing them in sets. Finally, verify that the drivelines are phased correctly, aligning the implement and tractor yokes; if necessary, phase the driveline or replace it.
  • R
    Robert OrozcoAug 28, 2025
    Why is the gearbox leaking on my Major Farm Equipment?
    • C
      Curtis LucasAug 28, 2025
      Several factors can cause a Major Farm Equipment gearbox to leak. It could be due to a damaged oil seal, in which case you should replace it. A bent or rough shaft in the oil seal area also requires replacement or repair. Ensure the oil seal is properly sealing in the housing, and use a sealant on the outside diameter of the seal if needed. If the oil level is too high, drain it to the proper level. In more severe cases, a hole in the gearbox necessitates replacing the entire gearbox. Damaged gaskets should be replaced, and loose bolts need tightening.
  • H
    hjordanAug 30, 2025
    What causes blades scalping ground on Major Farm Equipment?
    • C
      Courtney MercadoAug 30, 2025
      If the blades on your Major Farm Equipment are scalping the ground, it could be due to a few reasons. The mower might be set too low, so try raising it. If the field is ridged, try cutting it at a different angle. Also, if the field is too wet, stop and wait until it has dried out.
  • M
    Michael PowellSep 2, 2025
    Why is my Major Farm Equipment so noisy?
    • B
      brooke25Sep 2, 2025
      A noisy Major Farm Equipment machine could indicate several issues. A worn bearing may need replacement. Low oil in the gearbox requires checking the level and adding oil. Ensure the correct PTO rpm rate is set and adjust as necessary. Bent or broken rotors should be replaced. Finally, check that the PTO shafts are aligned correctly, the output shaft on the gearboxes isn't bent, and the driveline between gearboxes is aligned.
  • B
    Bryan RussoSep 5, 2025
    Why does my Major Farm Equipment require excessive power?
    • D
      Dr. Chris BullockSep 5, 2025
      If your Major Farm Equipment seems to require excessive power, several factors could be at play. If you're advancing into the grass too rapidly, reduce your forward travel speed. If the mower is hitting the ground, raise it and reset the skids. Worn or dull blades should be sharpened or replaced. Finally, ensure that your tractor is large enough for the equipment; if not, use a larger horsepower tractor.
  • T
    Tony PenaSep 7, 2025
    What to do if Major Farm Equipment mower will not cut?
    • A
      Amanda AyersSep 7, 2025
      If your Major Farm Equipment will not cut, the shear bolt may have sheared. Install a new shear bolt to resolve this issue.
  • J
    jballSep 10, 2025
    Why does the cutting deck on my Major Farm Equipment swing behind the tractor?
    • A
      anthony41Sep 12, 2025
      If the cutting deck on your Major Farm Equipment swings behind the tractor while cutting, it could be due to a few reasons. If you're advancing into the grass too rapidly, reduce your forward speed. If you're dealing with a very heavy crop, reduce your forward speed and/or change the cutting height. Also, the pressure relief valve might be set too low, so adjust it until the cutting deck stops falling back.

Summary

Manual Disclaimer

Introduction to Major Grass Topper Manual

Using Your Operators Manual

Guidance on the proper use and importance of the operator's manual.

Safety Issues Overview

Highlights safety concerns and the need for careful reading of the manual.

Product Information

Machine Serial Numbers

Instructions for locating and recording machine serial numbers for service.

Product Specifications

Technical specifications for the Major Grass Topper models.

Safety Precautions for Grass Topper Operation

Machine Safety Labels Explained

Explanation of safety labels, warning symbols, and hazard identification.

Safe Operating Practices

Essential practices for safe operation, including PTO speed and personal attire.

Workstation and Transmission Safety

Safety guidelines for the operator's workstation and transmission usage.

PTO Shaft Safety Guidelines

Critical safety instructions for PTO shaft connection, length, and maintenance.

Operating Instructions for Major Grass Toppers

Pre-Operation Inspections

Checklist for essential inspections before starting the machine.

Key Component Identification

Identification of main parts for 9FTGDX and 909HD models.

800 SM and 900 SM Model Operation

Specific operating notes and regulations for 800SM and 900SM models.

Machine Setup Procedures

Step-by-step setup instructions, including hydraulic and transport positions.

Hitching the Topper to the Tractor

Detailed guide on safely connecting the grass topper to the tractor.

Mowing Position Setup

Instructions for positioning the machine correctly for mowing operations.

Mowing Guidelines and Adjustments

Guidelines for mowing, adjusting skids, and cutting height.

Hydraulic Breakaway Adjustment

Procedure for adjusting the hydraulic breakaway system.

Maintenance and Servicing Schedule

PTO Shaft Maintenance

Maintenance tasks for the PTO shaft, including greasing intervals.

Shearbolt Replacement and Schedule

Instructions for shearbolt replacement and maintenance schedule.

Troubleshooting Guide

Common faults, causes, and remedies for grass topper issues.

Spare Parts Identification

9 FTGDX Parts Overview

Illustrated parts list for the 9FTGDX model.

909 HD Parts Overview

Illustrated parts list for the 909HD model.

9 FTGDX;909 HD Wheel Assembly Parts

Parts breakdown for the wheel assembly.

800 SM;900 SM Body Parts

Parts list for the body of 800SM and 900SM models.

800 SM;900 SM Linkage Parts

Parts list for the linkage of 800SM and 900SM models.

800 SM;900 SM Hydraulics Parts

Parts list for the hydraulics of 800SM and 900SM models.

Blade Systems and Replacement

Blade Components and Hardware

Details on blade mounts, blades, and associated hardware.

PTO Shaft Configurations

PTO Shaft Models by Machine

Lists primary and secondary PTO shaft types for each machine model.

Gearbox Information and Breakdowns

LF140 J Gearbox Breakdown

Detailed part breakdown for the LF140J gearbox.

T292006 Gearbox Breakdown

Detailed part breakdown for the T292006 gearbox.

LF205 Gearbox Breakdown

Detailed part breakdown for the LF205 gearbox.

LF205 T Gearbox Breakdown

Detailed part breakdown for the LF205T gearbox.

T27 A Gearbox Breakdown

Detailed part breakdown for the T27A gearbox.

T27 A1 Gearbox Breakdown

Detailed part breakdown for the T27A1 gearbox.

T304 A Gearbox Breakdown

Detailed part breakdown for the T304A gearbox.

Certificate of Conformity

Major 800SM Specifications

General IconGeneral
BrandMajor
Model800SM
CategoryFarm Equipment
LanguageEnglish

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