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J&M 620 - User Manual

J&M 620
38 pages
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Rev. 1.30.2020
GRAIN CART
OPERATOR’S MANUAL
MODEL
Manual
J&M Manufacturing Co, Inc
284 Railroad Street - P.O. Box 547 | Fort Recovery, OH 45846 | Ph: (419) 375-2376 | Fax: (419) 375-2708
www.jm-inc.com

Table of Contents

Questions and Answers

  • T
    Todd WagnerAug 5, 2025
    What to do if the J&M Outdoor Cart experiences grain flow stoppage?
    • R
      Robert JohnsonAug 5, 2025
      If your J&M Outdoor Cart experiences grain flow stoppage: * Replace the bolt in the drive dog if it has sheared, and engage the upper and lower flighting at a slow rate of speed. Avoid engaging drive dogs and lugs too quickly. * If the upper and lower flightings are disengaging before the auger comes to a complete stop, replace the bolt in the drive dog. Always wait for the augers to stop completely before engaging or disengaging the upper and lower flightings. * Replace the key and tighten the set screw if the PTO key has sheared.
  • E
    Eric SchmidtAug 16, 2025
    What causes excessive vibration in my J&M Outdoor Cart?
    • B
      Brian FigueroaAug 17, 2025
      Excessive vibration in your J&M Outdoor Cart can be caused by: * A bent auger flighting or shaft. Straighten or replace the auger flighting. * A bent drive shaft. Replace or straighten the drive shaft.
  • B
    bsmithAug 22, 2025
    What to do if the auger tube is breaking away from the J&M Outdoor Cart?
    • W
      wallacejosephAug 22, 2025
      If the auger tube is breaking away from the grain cart at the hinge area, or if the ram in the hydraulic folding cylinder is bent, it's likely because the upper auger was extended in the upright position while traveling in the field. Repair or replace the folding cylinder if necessary, and remember to lower the auger to the field position after unloading.
  • W
    wriosAug 28, 2025
    Why is the hanger bushing assembly hot on my J&M Outdoor Cart?
    • J
      Jessica BrewerAug 28, 2025
      The hanger bushing assembly at the top of the lower auger flighting might be hot because: * The top of the hanger bushing assembly is rubbing against the drive dog. To fix this, loosen the two bolts, readjust the position of the hanger bushing assembly, and then re-tighten the bolts. * Alternatively, remove the lower flighting assembly and place a shim between the spline coupler and the gearbox.
  • L
    Lindsey WhiteNov 9, 2025
    Why won't the auger return to the down position or move from the stow position on my J&M Outdoor Cart?
    • L
      Logan LewisNov 10, 2025
      There are several reasons why the auger on your J&M Outdoor Cart might not return to the down position or move from the stow position: * A faulty check valve may be the cause. Replace the check valve. * A faulty lock and load solenoid may be the cause. Disconnect power to lock and load. If the auger is able to move, the lock and load solenoid needs to be replaced. * The upper and lower flighting may be locked together. Adjust the bearing on top of the upper auger flighting. When the auger is in the engaged position, there must be a 1/8” (0,32cm) gap between the bottom of the top bearing and the top of the upper tube housing. * The feed gate may be open. Close the feed gate. * The Lock and Load may not be operating correctly. Make sure the limit switch on the feed gate indicator a...

Summary

General Information

Safety Alert Symbols

Defines hazard symbols and terms like DANGER, WARNING, CAUTION.

Specifications and Dimensions

Details capacity, weight, dimensions, and tire sizes.

Decals

Decal Identification and Placement

Lists and describes safety and informational decals on the machine.

Torque Specifications

SAE Fastener Torque Chart

Provides torque values for various SAE fastener sizes and grades.

Stud and Wheel Nut Torque

Specifies torque for wheel studs and nuts, emphasizing wheel nut checks.

Safety Rules

General Operator Safety Precautions

Covers training, hazard awareness, speed, and hydraulic safety.

Transport and Connection Safety

Details safe hitching, PTO connection, and auger operation.

Initial Operation and Maintenance

Pre-Operation Checks and Setup

Ensures safety, gearbox lubrication, and PTO overlap.

Tire Pressure Guidelines

Lists recommended tire inflation pressures for cyclic use.

Operating Instructions

Towing and Road Safety

Covers safe towing speeds, lighting, and road travel precautions.

Tractor Connection and PTO Setup

Details proper hitch, safety chain, and PTO shaft connection.

Operating Instructions

Hydraulic and Electrical Connections

Connects hydraulic lines and checks lighting functionality.

Adjusting the Slip Clutch

Step-by-step procedure for adjusting the PTO slip clutch.

Lubrication Service Schedule

Grease Fittings Maintenance

Schedule for greasing PTO, driveline, and auger components.

Gearbox Lubrication and Oil Change

Details gearbox oil type, capacity, and annual change.

Routine Maintenance

Regular Maintenance Checks

Covers bearings, welds, hoses, tires, and guards.

Troubleshooting

Common Issues and Solutions

Addresses auger movement, grain stoppage, and vibration.

Flighting Adjustment Procedures

Lower Flighting Adjustment Guide

Adjusts lower flighting and hanger bushing for heat issues.

Upper Flighting Adjustment Guide

Adjusts upper flighting for proper engagement and separation.

Hydraulic System Maintenance

Cleaning Hydraulic Restrictors

Procedure to remove dirt from hydraulic cylinder restrictors.

Storage and Repair Preparation

Grain Cart Storage Procedures

Steps for preparing the cart for storage to prevent damage.

Maintenance and Repair Safety

Safety advice for performing maintenance and repair work.

Wheel Rims and Tires Options

Lists available wheel rim and tire configurations.

Hub and Spindle Assembly

Non-Scale Hub & Spindle Components

Identifies individual parts of the hub and spindle assembly.

PTO Shaft Assembly

Weasler PTO Shaft Component Identification

Lists and illustrates parts of the PTO shaft assembly.

Slip Clutch Assembly

Self-Adjusting Slip Clutch Components

Identifies parts of the self-adjusting slip clutch mechanism.

Gearbox Assembly

Superior 130 Degree Gearbox Components

Lists and illustrates parts of the gearbox.

Driveline Assembly

Driveline Component Identification

Identifies individual parts of the driveline assembly.

Hitch and Jack Assembly

Hitch and Jack Component Identification

Lists and illustrates parts of the hitch and jack assembly.

Auger Assembly

Lower Auger Component Identification

Identifies individual parts of the lower auger assembly.

Top Auger Assembly

Top Auger Linkage Component Identification

Lists parts for the top auger linkage system.

Top Auger Component Identification

Identifies individual parts of the top auger assembly.

Flow Control Spout

Flow Control Spout Component Identification

Lists and illustrates parts of the flow control spout.

Lights and Wiring

Lighting and Wiring Component Identification

Identifies parts for the lighting and wiring harness.

Ladder Assembly

Ladder Component Identification

Lists and illustrates parts of the ladder assembly.

Hydraulic System

Hydraulic Hoses and Cylinders Diagram

Illustrates the hydraulic system layout and components.

Hydraulic System

Hydraulic Hoses and Cylinders Parts List

Lists specific part numbers for hydraulic hoses and cylinders.

Auto-Gate Shut-Off System

Hydraulic Hoses for Auto-Gate Shut-Off Diagram

Shows the layout of hydraulic lines for the auto-gate shut-off.

Auto-Gate Shut-Off System

Auto-Gate Shut-Off Hydraulic Parts List

Lists specific part numbers for the auto-gate shut-off hydraulic system.

Auto-Gate Shut-Off System

Auto-Gate Shut-Off Assembly Components

Identifies parts for the auto-gate shut-off assembly.

Auto-Gate Shut-Off Wiring Schematic

Provides the electrical wiring diagram for the auto-gate shut-off.

Scale System

3-Point Scale System Components

Lists and illustrates parts for the 3-point scale system.

Sideboards

Sideboard Component Identification

Identifies individual parts that make up the sideboards.

Inspection Windows

Inspection Window Component Identification

Lists parts for the inspection windows.

Door Wheel Assembly

Door Wheel Assembly Component Identification

Identifies parts for the door wheel assembly.

Roll Tarp Assembly

Roll Tarp Assembly Diagrams

Illustrates the various assemblies and parts of the roll tarp.

Roll Tarp Assembly

Roll Tarp Assembly Parts List

Lists specific part numbers for the roll tarp assembly.

Spring Return Assembly

Spring Return Assembly Component Identification

Identifies individual parts of the spring return assembly.

J&M 620 Specifications

General IconGeneral
Model620
CategoryOutdoor Cart
BrandJ&M
MaterialSteel
Tire TypePneumatic
Tire Size16" x 4.8" - 8"

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