AGCO Gleaner S77 - User Manual

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Quick Reference Guide

S67/S68/S96 • S77/S78/S97 • S88/S98 Models

It is YOUR responsibility to read and understand the safety section in your

Operator’s Manual and the manual for all attachments before operating your

machine. Remember YOU are the key to safety. Good safety practices not only

protect you, but also the people around you.

Study the features in your Operator’s Manual and make them a working part of

your safety program. Keep in mind that the safety section in your Operator’s

Manual is written only for this type of machine. Practice all other usual and

customary safe working precautions, and above all REMEMBER - SAFETY IS

YOUR RESPONSIBILITY. YOU CAN PREVENT SERIOUS INJURY OR

DEATH.

Questions and Answers

S
stephanie05Sep 16, 2025
What causes header conveyor plugging or material not moving from the center of the conveyor into the front feed chain on AGCO Flex Header Farm Equipment?
- K
  Krystal HamiltonSep 17, 2025
  Adjust the straw retarder if the straw retarder clearance from the conveyor flight is too great. Adjust the reel height if the reel is not adjusted to provide a smooth flow of material into the header conveyor. Adjust the position of the conveyor fingers for best material flow if the conveyor fingers are retracting too early or too late. Conveyor flighting should have a slight lean toward the center of the conveyor if there is insufficient lean in the header conveyor flighting. Adjust the conveyor fore and aft position if the conveyor is too far forward or too far rear. Adjust the conveyor height if the conveyor is too high or too low. Move the front feed chain drum forward away from the header consistently if the feeder chains are not moving material.
A
awilliamsSep 18, 2025
What to do if grain is not threshed from heads or shelled from cob or pod in AGCO Farm Equipment?
- J
  Justin BrownSep 18, 2025
  Decrease concave clearance and adjust cylinder speed to prevent cracking if the concave clearance is too great. Increase cylinder speed enough to do a good job of threshing if the cylinder speed is too slow. Level the concave to the cylinder if the concave is not level. Increase ground speed for more intake of material if there is insufficient material entering the cylinder. Replace cylinder bars if they are worn or damaged. Replace cylinder bars if the cylinder is not aggressive enough. Replace the concave if it is extremely worn or damaged. Install concave fillers if the crop is very difficult to thresh. On combines equipped with optional tailings return, adjust the handle to return tailings to the cylinder.
A
Audrey FischerNov 22, 2025
How to fix ragged and uneven cutting of crop with AGCO Gleaner S77 Farm Equipment?
- C
  chad25Nov 22, 2025
  Ragged and uneven cutting of crops can occur due to several reasons. The cutting mechanism may not be operating at the recommended speed; check the basic speed of the combine and the header drives. The reel speed might be too slow for the ground speed, so increase the reel speed. The reel height could be too high, so lower the reel. Adjust the reel position so the reel bats hold the grain leaning slightly into the sickle. Ensure the header is level. Bent or broken guards can also cause this issue, so straighten or replace them. Adjust the upper lips of the guards to be parallel to the lower shear edge of the guard. Adjust the sickle so the tips of the sickle sections rest lightly on the guards. Replace worn hold-down clips and adjust the clips. Adjust wear plates if there's too much fore a...
W
William PadillaNov 23, 2025
What to do if there is excessive cracked grain in the grain tank of AGCO Gleaner S77?
- B
  Brett ParrishNov 23, 2025
  Excessive cracked grain in the grain tank can occur if the crop is too damp or green, so allow the crop conditions to improve. If the cylinder speed is too fast, decrease it just enough to stop threshing. Other causes include uneven feeding or slugs entering the cylinder, the engine not running at the correct speed, the concave not being level, insufficient material entering the cylinder, dented conveyor housings, bent conveyor shafts, worn conveyor flighting, concave clearance too close, excessive tailings return, grain remaining in the cage too long, excessive feed chain speed, worn cylinder bars, or kernel moisture being too high. Level the concave to the cylinder. Remove dents from conveyor housings to achieve adequate clearance with the auger. Increase concave clearance. Adjust the cl...
J
Jacob ChangDec 1, 2025
How to prevent guards from plugging on AGCO Farm Equipment?
- B
  blackshannonDec 1, 2025
  Guards can plug if sickle sections are not contacting guards, so adjust the sickle so the tips of the sickle sections rest lightly on the guards. Replace missing or worn sickle sections. The reel may not be adjusted to provide a smooth flow of material into the header conveyor; refer to the Operator Manual for the best starting position and adjust reel height, reel speed, and reel fore and aft position for even flow. Straighten or replace bent or broken guards. Tilt the cutter bar up if it is tilted down too much. Straighten or replace a bent or twisted sickle assembly. Reduce ground speed if it is too fast. Check that skid pad splice brackets are not binding skid pads. Decrease ground pressure by increasing spring tension on flex arms where plugging is occurring. Move selection to a highe...

Summary

Combine Setup Procedures

Cereal Grain Setup

Initial combine setup parameters for wheat, oats, and barley.

Corn & Sorghum Setup

Initial combine setup for dry, high moisture corn, and sorghum.

Soybean & Oilseed Setup

Initial combine setup for soybeans and canola/rapeseed.

Specialty Crop Setup

Initial combine setup for sunflowers, flax, grass seed, alfalfa, hemp, clover, and rye.

Troubleshooting Guide

Header Troubleshooting

Common issues and solutions for the combine header.

Component & Performance Troubleshooting

Issues with feed conveyor, processor, grain quality, and loss.

Grain Loss Calculation Methods

Quick Check Grain Loss Estimation

Method for estimating grain loss per square foot.

Advanced Grain Loss Measurement

Detailed rotor and shoe grain loss calculation procedures.

Crop Harvest Data

Payable Moisture & Density Chart

Chart of standard payable moisture and density for various crops.

AGCO Gleaner S77 Specifications

General

Brand	AGCO
Model	Gleaner S77
Category	Farm Equipment
Language	English

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