J&M 750-14 User Manual

OPERATOR’S MANUAL

PATENTED SINGLE AUGER

GRAIN CARTS

750-14 Grain Cart

JMMAN0101 (Rev. 02/11/09)

J. & M. Mfg. Co., Inc.

P.O. Box 547 Ft. Recovery, OH 45846
Ph: [phone] Fax: [phone]

www.jm-inc.com

TO THE DEALER:

Read manual instructions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists
in the Operator’s Manual are completed before releasing equipment to the owner.

The dealer must complete the Warranty Registration Card attached to the front inside cover of this manual and return
to J. & M. Mfg. Co., Inc. at the address indicated on the card. Warranty claims will be denied if the Warranty

Registration Card has not been completed and returned.

EXPRESS WARRANTY:

J. & M. Mfg. Co. Inc. warrants against defects in construction or materials for a period of ONE year. We reserve the right
to inspect and decide whether material or construction was faulty or whether abuse or accident voids our guarantee.

Warranty service must be performed by a dealer or service center authorized by J. & M. Mfg. Co. Inc. to sell and/or
service the type of product involved, which will use only new or remanufactured parts or components furnished by J.
& M. Mfg. Co. Inc. Warranty service will be performed without charge to the purchaser for parts or labor based on the
Warranty Labor Times schedule. Under no circumstance will allowable labor times extend beyond the maximum
hours indicated in the Warranty Labor Times schedule for each warranty procedure. The purchaser will be responsible,
however, for any service call and/or transportation of the product to and from the dealer or service center’s place of
business, for any premium charged for overtime labor requested by the purchaser, and for any service and/or
maintenance not directly related to any defect covered under the warranty. Costs associated with equipment rental,
product down time, or product disposal are not warrantable and will not be accepted under any circumstance.

Each warranty term begins on the date of product delivery to the purchaser. Under no circumstance will warranty be
approved unless (i) the product warranty registration card (attached to the inside of the Operator’s Manual) has been
properly completed and submitted to the equipment manufacturer, and (ii) a warranty authorization number has been
issued by the equipment manufacturer. This Warranty is effective only if the warranty registration card is returned
within 30 days of purchase.

This warranty does not cover a component which fails, malfunctions or is damaged as a result of (i) improper
modification or repair, (ii) accident, abuse or improper use, (iii) improper or insufficient maintenance, or (iv) normal
wear or tear. This warranty does not cover products that are previously owned and extends solely to the original
purchaser of the product. Should the original purchaser sell or otherwise transfer this product to a third party, this
Warranty does not transfer to the third party purchaser in any way. J. & M. Mfg. Co. Inc. makes no warranty, express or
implied, with respect to tires or other parts or accessories not manufactured by J. & M. Mfg. Co. Inc. Warranties for
these items, if any, are provided separately by their respective manufacturers.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS, IMPLIED OR
STATUTORY, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE.

In no event shall J. & M. Mfg. Co. Inc. be liable for special, direct, incidental or consequential damages of any kind. The
exclusive remedy under this Warranty shall be repair or replacement of the defective component at J. & M. Mfg. Co.
Inc’s. option. This is the entire agreement between J. & M. Mfg. Co. Inc. and the Owner about warranty and no J. & M.
Mfg. Co. Inc. employee or dealer is authorized to make any additional warranty on behalf of J. & M. Mfg. Co. Inc.

The manufacturer reserves the right to make product design and material changes at any time without notice. They
shall not incur any obligation or liability to incorporate such changes and improvements in products previously sold to
any customer, nor shall they be obligated or liable for the replacement of previously sold products with products or
parts incorporating such changes.

SERVICE:

The equipment you have purchased has been carefully manufactured to provide dependable and satisfactory use.
Like all mechanical products, it will require cleaning and upkeep. Lubricate the unit as specified. Observe all safety
information in this manual and safety signs on the equipment.

For service, your authorized J. & M. dealer has trained mechanics, genuine J. & M. service parts, and the necessary
tools and equipment to handle all your needs.

Use only genuine J. & M. service parts. Substitute parts may void the warranty and may not meet standards required
for safe and satisfactory operation. Record the model number and serial number of your equipment in the spaces
provided:

Serial No.: Date of Purchase:

Purchased From:

Provide this information to your dealer to obtain correct repair parts.

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750-14 GRAIN CART

SPECIFICATIONS

DIMENSIONS

A) 18”
B) 153”
C) 69”
D) 168”
E) 229”
F) 150”
G) 76”
H) 134”
I) 120”
J) 18”
K) 24”
L) 120”/144”
M) 144”/160”
N) 141”
O) 128”

Note: Specifications are subject to change without notice or obligation
* Bushel capacities measured with #2 corn at 15% moisture (56 lb test wt.)
**Time varies with rpm and moisture content of grain

Patent Nos. 5,013,208; 5,100,281 and 5,340,265

SPECIFICATIONS

Capacity 750 bushels
Auger, one vertical 14” diameter
Wheels 21x32 or 27x32
Hubs 10 bolt
Spindles 4 1/2” diameter
Weight (approx.) 7,200#
PTO 1,000 rpm
Tire Size 24.5x32, 12 ply or

30.5x32, 12 ply

Tongue Weight:

Empty 1,100 lbs
Loaded 2,700 lbs

Construction:

Hopper 12 GA Steel
Undercarriage 8” x 4” x 1/4” Tubing
Axle 5” x 5” x 1/2” Tubing
Unloading Time** 4 minutes (approx.)

GENERAL INFORMATION

TO THE OWNER:

The purpose of this manual is to assist you in operating and maintaining your grain cart in a safe manner. Read
it carefully. It furnishes information and instructions that will help you achieve years of dependable performance
and help maintain safe operating conditions. If this machine is used by an employee or is loaned or rented,
make certain that the operator(s), prior to operating:

1. Is instructed in safe and proper use.

2. Reviews and understands the manual(s) pertaining to this machine.

Throughout this manual, the term IMPORTANT is used to indicate that failure to observe can cause damage to
equipment. The terms CAUTION, WARNING and DANGER are used in conjunction with the Safety-Alert
Symbol, (a triangle with an exclamation mark), to indicate the degree of hazard for items of personal safety.
When you see this symbol, carefully read the message that follows and be alert to the possibility of personal
injury or death.

This Safety-Alert symbol indicates a hazard and means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Indicates an imminently hazardous situation that, if not avoided, will
result in death or serious injury.

Indicates a potentially hazardous situation that, if not avoided, could
result in death or serious injury, and includes hazards that are
exposed when guards are removed.

Indicates a potentially hazardous situation that, if not avoided, may
result in minor or moderate injury.

Indicates that failure to observe can cause damage to equipment.

Indicates helpful information.

3

GENERAL INFORMATION

BOLT TORQUE CHART

Always tighten hardware to these values unless a different torque or tightening procedure is listed for a specific
application.

Fasteners must always be replaced with the same grade as specified in the manual parts list.

Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for metric hardware.

Make sure fastener threads are clean and you start thread engagement properly.

All torque values are given to specifications used on hardware defined by SAE J1701 & J1701M JUL 96.

4

TABLE OF CONTENTS

INTRODUCTION 2

EXPRESS WARRANTY 2

SPECIFICATIONS 3

GENERAL INFORMATION 3

BOLT TORQUE CHART 4

SAFETY RULES 6

SAFETY SIGNS 7

INITIAL OPERATION 8

OPERATION 9-10

ROUTINE MAINTENANCE 11

TROUBLE SHOOTING 12

SERVICE 13-14

STORAGE 14

REMOVING FROM STORAGE 14

PARTS LISTS/DIAGRAMS 15-20

WEIGH SCALE INSTALLATION INSTRUCTIONS 21-23

ROLL TARP INSTALLATION 24-28

SERVICE RECORDS 29

5

SAFETY RULES

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Safety is a primary concern in the design and manufacture of our products. Unfortunately, our efforts to provide
safe equipment can be erased by an operator’s single careless act. In addition, hazard control and accident
prevention are dependent upon the awareness, concern, judgement, and proper training of personnel involved in
the operation, transport, maintenance and storage of equipment.

Make certain that the operator(s), prior to operating is instructed in safe and proper use and reviews and
understands the manual(s) pertaining to this machine. Also make certain that the operator(s) reviews and
understands the operator’s manual of the tractor prior to hooking up or operating the grain cart.

Read this manual before you operate this machine. If you do not understand any part of this manual, or need
more information, contact the manufacturer or your authorized dealer.

SAFETY

Understand that your safety and the safety of other persons is measured by how you service, and operate this
machine. Know the positions and functions of all controls before you try to operate them. Make sure to check
all controls in a safe area before starting your work.

The safety information given in this manual does not replace safety codes, federal, state or local laws. Make
certain your machine has the proper equipment as designated by local laws and regulations.

A frequent cause of personal injury or death is from persons falling off equipment and being run over. Do not
permit persons to ride on this machine.

Travel speeds should be such that complete control and machine stability is maintained at all times. Where
possible, avoid operating near ditches, embankments and holes. Reduce speed when turning, crossing slopes
and rough, slick or muddy surfaces.

Collision of high speed road traffic and slow moving machines can cause personal injury or death. On roads,
use flasher lights according to local laws. Keep slow-moving-vehicle emblem visible. Pull over to let faster
traffic pass.

Hydraulic oil leaking under pressure can penetrate skin and cause infection or other injury.
To Prevent Personal Injury:

Relieve all pressure, before disconnecting fluid lines.
Before applying pressure, make sure all connections are tight and components are in good condition.
Never use your hand to check for suspected leaks under pressure. Use a piece of cardboard or
wood for this purpose.

If injured by leaking fluid, see you doctor immediately.
When transporting the grain cart, always keep the auger in stow position.
Use care when moving or operating grain cart near electric lines as serious injury or death can result from
contact.
Never adjust, service, clean, or lubricate grain cart until all power is shut off. Keep all safety shields in place.
Keep hands, feet, hair and clothing away from moving parts while unit is in operation.

The service ladder is for service work only. If you must climb into grain tank, be certain that all power is shut off
and then use extreme caution when climbing into grain cart.

Make sure that everyone is clear of equipment before applying power or moving the machine.

Make sure that the grain cart is fastened securely to the tractor by using a high strength hitch pin, clip and
safety chains. Make sure that the grain cart hitch properly matches the hitch type of the tractor. Use a single
prong (spade) grain cart hitch with a double prong (clevis) tractor hitch. Use a double prong (clevis) grain cart
hitch with a single prong (spade) tractor hitch.

Before filling the grain cart, make certain that no one is inside the grain tank. Never allow children or anyone in,
near, or on the grain cart during transport or during loading and unloading of grain. Be aware that moving grain
is dangerous and can cause entrapment, resulting in severe injury or death by suffocation.

Never operate the auger system with anyone inside of the grain tank. Hands, feet, hair, and clothing can fit
through the openings in and around the grate. Contact with the auger can cause severe injury or death. Make
certain that all power is shut off before service work is performed.

Before unhooking the grain cart from the tractor, be sure to properly block the wheels to prevent the cart from
moving.

6

750-16 OWNER’S MANUAL

SAFETY SIGNS

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Replace Immediately If Damaged or Missing!

IMPORTANT: Install new safety signs if the old signs are

destroyed, lost, painted over or cannot be read. When
parts are replaced that have safety signs, make sure you
install a new sign with each new part. New signs are
available from the manufacturer or your authorized dealer.

31 7

Not

Shown

2

4

17

5

Ref. # Description Part #

1 Sign, Danger CDD-101
2 Sign, Danger CDD-103
3 Sign, Danger CDD-102
4 Sign, Danger CDD-104
5 Sign, Warning CDW-107
6 Sign, Important CDI-112
7 Sign, Warning CDW-109
8 Sign, Farm Use CDI-113
9 Sign, Open CDI-114
10 Sign, Closed CDI-115
11 Sign, J&M (small) CDD-116
12 Sign, J&M (large) CDD-111
13 Sign, Vinyl CDD-117
14 Sign, Danger CDD-105
15 Sign, Warning CDW-110
16 Sign, Danger CDD-106
17 Sign, Warning CDW-108

Req’d

1
3
1
3
1
1
1
1
1
1
2
4
1
1
2
5
1

16

14

7

INITIAL OPERATION/MAINTENANCE

BE CERTAIN THAT ALL POWER IS SHUT OFF BEFORE SERVICING THE GRAIN CART.

Before the grain cart is put into service:

Have the safety instructions been read and clearly understood by the operator(s) of this machine?

Has the gearbox been properly filled with EP-80-90 gearbox lubricant?

Have all nuts, bolts, bearings and braces been properly fastened?

IMPORTANT: Has the slip clutch on the PTO been serviced? If the slip clutch is left unchecked, damage to
the power-take-off and drive shaft may result. Before using the grain cart, loosen the bolts around the slip
clutch. Make sure that the friction plates turn free of each other and are not corroded together. Retighten the
tension bolts. Run the auger system EMPTY and check for proper engagement of the slip clutch.

Check the PTO overlap length. Overlap length may vary depending on tractor model. Try to obtain the
greatest possible overlap without bottoming out in the maximum operating condition. Too much overlap may
cause PTO to bottom out and damage driveline. See
overlap.

Are all bearings on the drive line properly greased? Are all set screws in the bearings and U-joints tight? Has
the power-take off been properly greased at all points including cross bearings? Has the universal joint at the
gearbox been greased?

Has the hanger bushing assembly at the auger hinge been greased and have all grease points at the hinge area
been greased?

OPERATING INSTRUCTIONS for recommended

TIRE PRESSURE - Are the tires properly inflated? The following is to be used as a general guide for tire
inflation for cyclic use. Figures can vary depending on specific brand of tire used. It is important that tires
are inspected before and after unit is loaded. Start with the minimum pressure indicated. The tire should
stand up with no side wall buckling or distress as tire rolls. Do Not Exceed Maximum Recommended Tire

Pressure.

Tire Size Pressure Tire Size Pressure

480/80R46 35 psi 35.5x32 35-38 psi
520/85R42 37 psi 900/60R32 36-42 psi

23.1 x 26 38 psi 66x43.00 37-40 psi

24.5 x 32 38 psi 73x44.00 37-40 psi

30.5 x 32 36-40 psi 76x50.00 41 psi

VERY IMPORTANT:

Under no circumstance is it recommended to tow a loaded grain cart in excess of 8 m.p.h.

WHEEL NUTS - Are the wheel nuts properly fastened (torque to 380 Lbs.-Ft. for standard 3/4” wheel studs and
nuts)? They should be checked after each load during initial operation of the cart and then after
every 10 hours of use. Failure to do so may damange wheel nut seats. Once seats are damaged, it will
become impossible to keep nuts tight.

The drawing shows the proper ways of mounting the wheels using Budd-type nuts. The
wheels supplied with your Grain Cart have straight holes and the Budd nuts will be
mounted according to Figure 1. Wheels that are improperly installed on the grain cart,
resulting in product failure, will nullify warranty and shift the burden of liability to the
owner/operator of the equipment. We suggest that you inspect your wheel nuts to make
sure that they are properly installed. Also, check the wheel nuts on a regular basis to
ensure they are tight.

LIGHTING AND SAFETY DECALS - Are the rear, amber extremity lights properly positioned? Extend lights
within 16” of the left and right extremities of the grain cart. Is a SMV Emblem attached to the grain cart?

Are the lights working properly? Are all reflective decals clean and visible? Are they positioned correctly?

8

OPERATING INSTRUCTIONS

BE CERTAIN THAT ALL POWER IS SHUT OFF WHEN HOOKING UP TO TRACTOR OR CONNECTING
HYDRAULIC LINES TO TRACTOR.

Preparing the Grain Cart for Use (see tractor recommendation for grain cart model below):

Model 525-14W Grain Cart requires a 100 hp tractor or larger.

Model 620-14, 750-14, 750-16 or 750-18 Grain Cart requires a 130 hp tractor or larger.

Model 875-16 or 875-18 Grain Cart requires a 150 hp tractor or larger.

Model 1075-18R, 1075-22R, 1050-18 or 1050-22 Grain Cart requires a 4WD tractor.

IMPORTANT: Do NOT pull loaded grain cart on highway. For incidental highway travel,

observe the section below.

Tow Loads Safely

Stopping distance increases with speed and weight of towed loads, and on slopes. Towed loads with or without
brakes that are too heavy for the tractor or are towed too fast can cause loss of control. Consider the total
weight of the equipment and its load.

Observe these recommended maximum road speeds, or local speed limits which may be lower:

Road Travel (empty grain cart) - Do not travel more than 32 km/h (20 mph) and do not tow

loads more than 1.5 times the pulling unit’s weight.

Ensure the load does not exceed the recommended weight ratio. Use additional caution when towing

loads under adverse surface conditions, when turning, and on inclines.

IMPORTANT:

1) Hookup grain cart to tractor using a good quality hitch pin. Attach the safety chain (not included as standard
equipment) to the tractor and around the A-frame of the cart as shown. Make sure the grain cart hitch properly
matches the hitch of the tractor. Use a single prong (spade) grain cart hitch with a tractor double prong (clevis)
hitch. Use a double prong (clevis) grain cart hitch with a single prong (spade) tractor hitch.

SAFETY CHAIN USER INSTRUCTIONS

a) Secure the safety chain by looping it around the grain cart
attaching frame on the left side (or both sides if required) and
connect to the towing machine’s attaching bar.
b) Do Not allow no more slack than necessary for articulation
(max 11 in.).
c) Do Not use any intermediate support as the attaching point.
d) Store the safety chain by securing it around the main axle A­frame of the grain cart.
e) Replace the safety chain if one or more links or end fittings are
broken, stretched or otherwise damaged or deformed.

2) Attach power-take-off shaft to tractor. PTO must have at least 5” of engagement. Check tractor drawbar for
clearance and length and adjust if needed. Make sure that the PTO does not bottom out when making

sharp turns as it may bend the drive shaft.

3) Make sure the jack stand is removed from the lower support position before the cart is moved. Never use the
jack to support a loaded grain cart.

4) Be sure that no debris or foreign objects are in the grain cart.

5) Attach hydraulic lines to the tractor. Two hydraulic lines operate the gate mechanism. Connect these lines
to one service outlet on the tractor. The remaining two lines operate the folding mechanism of the auger.
Connect these lines to a second service outlet on the tractor. Make sure the air is bled from the hydraulic
cylinders and lines.

6) Run auger system EMPTY before actual use. Make certain that slip clutch is operating and that upper and
lower augers are properly engaged.

7) Connect lighting hook-up to tractor electric outlet. Make sure that all flasher and turn indicator lights

are working properly before incidental highway travel.

9