Walinga Grain-Vac 7614F, AGRI-VAC 5614, AGRI-VAC 6614, AGRI-VAC 7614, AGRI-VAC 7816 Operator's Manual

Operator’s Manual

& Parts List For

7614F

GRAIN-VAC 7614F

WARRANTY REGISTRATION (3 part form - please print)

Warranty Registration Form & Inspection Report

This form must be filled out by the dealer and signed by both the dealer and the customer at the time of delivery.

Delivery Date: mm / dd / yyyy

COMPANY / CUSTOMER NAME DEALER NAME:

Phone: Phone:

Mobile phone: Mobile phone:

Email : @ Email : @

Street Address: Street Address:

City: Prov/State City: Prov/State:

Postal/Zip: Country Postal/Zip: Country:

Machine Serial Number

Blower Serial No.

Airlock Serial Number

DEALER INSPECTION REPORT SAFETY

Blower and Airlock Turn Freely

Boom Anchored in Place

Check Tire Pressure

Hydraulic Hose Connections Tight

Hydraulic Hoses Free and Fitting

Wheel Bolts Tight

Lubricate Machine

Check Oil Level in Reservoirs

Belts are Tight

O-Rings in Place

I have thoroughly instructed the buyer on the above described equipment which review included the Operator’s
Manual content, equipment care, adjustments, safe operation and applicable warranty policy.

Date ____________________Dealer's Rep. Signature _________________________________________

PTO Shaft Guard Turns Freely

Guards Installed and Secured

All Safety Signs Installed

Reflectors and SMV Signs Clean

Review Operating and Safety Instructions

Operating Manual Supplied

The above equipment and Operator’s Manual have been received by me and I have been thoroughly instructed as to
care, adjustments, safe operation and applicable warranty policy.

Date ___________________ Owner's Signature ________________________________________

199 05042016

3 Part Form
Please Print

WHITE YELLOW PINK

WALINGA DEALER CUSTOMER

Walinga Inc.

Pneumatic Conveying System

Warranty Terms

Walinga Inc. is committed to providing a quality product that will meet or exceed your expectations for many years
to come. Our warranty terms and our warranty claim process has been designed to ensure that each warranty claim
will be resolved in an orderly, fair and timely manner.

The Warranty

Walinga Inc. (“Walinga”) warrants that all new pneumatic products sold by Walinga Inc. will be free from defects in material
and workmanship (the “Walinga Warranty”).

Warranty Period

The warranty period for the Walinga Warranty shall expire on the date that is the earlier of: two (2) years after the date of
delivery to the original customer; or upon the expiration of five hundred (500) hours of operation; whichever date comes first.

Limitations of and exclusions from the Walinga Warranty



The Walinga Warranty applies to material and workmanship only.



With respect to any component parts that are supplied or manufactured by others, the warranty coverage on such
component parts will be strictly limited to the warranties of the manufacturers of such component parts.



The Walinga Warranty shall only be for the benefit of the original purchaser of the pneumatic products.



A Walinga Warranty may be transferable by the original purchaser to a third party for the balance of the warranty
period then remaining, provided that Walinga consents in writing to such transfer of warranty.

The Walinga Warranty is conditional upon proper storage, installation, use, maintenance, operation and compliance



with any applicable recommendations of Walinga.

Warranty Claim Procedure
Should you encounter any difficulties with your unit within its warranty period, please contact your local Walinga dealer or
sales representative, your local Walinga Service department or Walinga's Warranty Department to submit a warranty claim
application.

To speak with a Walinga Warranty Coordinator, contact:



Canada 1-888-WALINGA (ext 258)

International [phone] (ext 258)
Email – [e-mail]

USA 1-800-466-1197 (ext 8)



Email – [e-mail]



Australia 07-4634-7344

Email – [e-mail]

Required Warranty Claim information
The following information must be provided to Walinga in order for us to properly process and consider your warranty
application:

Customer name and contact information (email if available).




The equipment serial number and/or Vehicle Identification Number (if applicable).



Date of claimed failure.

Equipment hours of operation.




Details, description and photos (upon request) of the claimed failure and the corrective repairs attempted.

Warranty Conditions



Equipment must be registered within 30 days of being received by the buyer. It will be within the sole and
unfettered discretion of Walinga as to whether it will honour its warranty on non-registered equipment.

Warranty Conditions (continued)

The buyer is responsible for promptly notifying Walinga of any defects to the equipment. The buyer is also



responsible for making the equipment available to Walinga or its authorized repair facility for evaluation and repair.



Prior to making any repairs or parts replacements, a warranty application and any estimated associated costs must
be approved with the issuance of a claim number by an authorized Walinga representative. Undertaking any work
prior to receiving warranty authorization may result in a partial or complete loss of warranty coverage.



At Walinga's discretion, warranty repairs may be authorized to be completed at a repair facility convenient to the
buyer. In such situations the estimated labour time must be approved by Walinga prior to undertaking any work.
Labour hours will be reimbursed at the facilities posted hourly labour rate.

At Walinga's request, parts in question must be returned to the nearest Walinga service facility for evaluation. In such



situations a Returned Goods Authorization (RGA) number will be provided to the buyer. The returning shipment must
be clearly labeled with the assigned RGA number and include a copy of the RGA form. Unless otherwise arranged,
these parts are to be returned to Walinga within 30 days to ensure timely processing of your warranty claim. Failure
to return such parts may result in partial or complete loss of warranty coverage.



Replacement parts provided under warranty are covered for the remainder of the original equipment warranty period.



Walinga reserves the right to use new, remanufactured or refurbished components when performing warranty repairs
and replacements.

Walinga is entitled to a reasonable amount of time and a reasonable number of attempts to assess the claim,



diagnose the problem, and perform any necessary repairs.

The warranty offered on used or refurbished equipment is limited to that specified on the purchase contract. Where a



warranty period has not been stipulated on the purchase contract., and where such equipment is “used”, then such
equipment is considered by Walinga to be sold “as is, where is” without the Walinga Warranty. Where such
equipment is refurbished, then the Walinga Warranty shall apply.

Without limitation, Walinga reserves the right to reject a warranty claim or for any one or more of the following
reasons:

The warranty claim information provided is insufficient.



The product evaluation does not substantiate the claim.



The unit has been operated above and beyond its capacity or not maintained or serviced properly, resulting in



damages incurred to major components.



If the unit was equipped with a factory installed hour meter which has been disconnected, altered or inoperative for
an extended period of time; with the result being that the equipment’s operating hours cannot be verified.



It is apparent that the operator’s manuals have not been followed.



The equipment is not registered.

Without limitation, Walinga’s Warranty does not cover:

Damage or deterioration due to lack of reasonable care or maintenance.



Damage caused or affected by unapproved modifications to the equipment.



Damage caused by negligence or misuse of the equipment.



Damage caused by using the equipment for purposes for which it was not designed or intended.



Walinga’s liability under this warranty, whether in contract or tort, is limited to the repair, replacement or adjustment of
defective materials and workmanship. In no event will Walinga be responsible for any direct, indirect, loss of time, incidental
or consequential expenses including, but not limited to, equipment rental expenses, towing, downtime, inconvenience, or any
losses resulting from the inability to use the equipment. Further, Walinga shall not be liable for any damages or
inconvenience caused by any delay in the supply or delivery of any equipment or component parts thereof.

The selling Dealer/Sales Person makes no warranty of its own and has no authority to make any representation or promise
on behalf of Walinga, or to modify the terms or limitations of the Walinga Warranty in any way.

Punitive, exemplary or multiple damages may not be recovered unless applicable law prohibits their disclaimer.

Warranty related claims may not be brought forward as a class representative, a private attorney general, a member of a
class of claimants or in any other representative capacity.

The Walinga Warranty and all questions regarding its enforceability and interpretation are governed by the law of the country,
state or province in which you purchased your Walinga equipment. The laws of some jurisdictions limit or do not allow the
disclaimer of consequential damages. If the laws of such a jurisdiction apply to any claim against Walinga, the limitations and
disclaimers contained here shall be to the greatest extent permitted by law.

Dear Customer,

Thank you for choosing WALINGA PNEUMATIC CONVEYING SYSTEMS. For your convenience, should you
require any information related to Parts, Service or Technical Engineering, please contact one of the
following Walinga Personnel in Guelph at 1-888 925-4642 unless noted

TECHNICAL - ENGINEERING:

Duane Swaving 226-979-8227 [e-mail]
Ken Swaving 519 787-8227 (ext:100) [e-mail]

WARRANTY CLAIMS:
Canada: Gary Nijenhuis (ext:258) [e-mail]
USA: Jonathan Medemblik

[phone] (ext 8) [e-mail]

SERVICE MANAGER:

Andy Nijenhuis [phone] (ext:260) [e-mail]

SALES MANAGER:
Canada: Tom Linde [phone] (ext 5) [e-mail]
USA: Peter Kingma [phone] [e-mail]

ORIGINAL PARTS SALES:
Ontario and Eastern Canada:

Jack Lodder (ext: 224) [e-mail]
Parts Department Fax: [phone]

Manitoba and Western Canada:

Chad Yeo 204-745-2951 [e-mail]

USA: John VanMiddlekoop [phone] (ext 3) [e-mail]

CORPORATE HEAD OFFICE:

5656 Highway 6N
RR#5, Guelph, Ontario,N1H 6J2
PHONE: [phone] FAX: [phone]
www.walinga.com

AGRI-VAC MANUFACTURING FACILITY:

938 Glengarry Cres., Fergus, Ontario Canada N1M 2W7
Tel: [phone] Fax: [phone]

DISTRIBUTION AND SERVICE CENTRES:

5656 Highway 6N, Guelph, Ontario Canada, N1H 6J2
Tel: [phone] FAX: [phone]

1190 Electric Ave. Wayland , MI.USA 49348
Tel: [phone] Fax: [phone]

70 3rd Ave. N.E. Box 1790 Carman, Manitoba Canada R0G 0J0
Tel: [phone] Fax: [phone]

24 Molloy Street, Toowoomba, Queensland Australia 4350
Tel: [phone] [e-mail]

SERIAL NUMBER LOCATION

Always give your dealer the Serial Number of
your Walinga unit when ordering parts or
requesting service or other information.

The Serial Number plates are located where
indicated. Please mark the number in the
space provided for easy reference.

Machine Serial Number

_____________________________

Blower Serial Number

____________________________

Airlock Serial Number

____________________________

7614F Grain-Vac Operator’s Manual 34-100853-6 4

WALINGA INC

GRAIN-VAC WARRANTY

º For Farm Use Only, The Seller warrants to the Buyer that the Equipment manufactured by
the Seller will be free from defect in material, workmanship and title for a period of one

(1) year from the date of delivery to the Buyer. This warranty is subject to the following:

a) The Seller’s obligation under said warranty shall be limited to repairing or replacing (at the Seller’s

option) EXW (ExWorks) Guelph, Ontario, Canada, any part of the Equipment which, if properly
installed, used and maintained, proves defective in material or workmanship, provided that notice
of any such defect and satisfactory proof thereof is promptly given by the Buyer to the Seller;

b) All costs of the installation or transportation pursuant to this warranty are for the account of
the Buyer;

c) The obligations set forth in this clause are conditional upon:

i. Proper storage, installation (except where installation is supervised by or performed by the

Seller), use, maintenance and compliance with any applicable recommendations of the Seller;
and,

ii. The Buyer promptly notifying the Seller of any defect and obtaining authorization prior to
proceeding with repairs, and if required, promptly making the goods available for correction;

d) In respect of any Equipment or part thereof supplied hereunder which are manufactured by

others, the Seller gives no warranty whatsoever, and the warranty given by the manufacturer,
if any, shall apply;

e) The Seller shall not be liable for any cargo loss, loss of equipment, use or any other incidental or

consequential damages resulting from any defective part or parts, the Seller’s liability and the
Buyer’s exclusive remedy being expressly limited to the replacement of defective parts as
provided herein;

f) The warranty set out within this paragraph does not apply to:

i. tires, accessories, and other items including the items, if any listed on the face hereof as
“Buyers Specified Items”, manufactured by others and the Buyer shall rely solely on the
warranty, if any, of the manufacturer of such tires, accessories and other items; nor

ii. to any equipment, otherwise subject to this warranty, which shall have been repaired,
modified or altered in any way by anyone other than the Seller or one of its duly authorized
service representatives.

g) With respect to used equipment sold hereunder, regardless of manufacture, the Seller makes no

warranty whatever, and all warranties, express or implied are hereby excluded. With respect to
such used equipment, the Buyer agrees to accept such used equipment on an “as is” basis.

WARRANTY VOID IF NOT REGISTERED

7614F Grain-Vac Operator’s Manual 34-100853-6 6

7

TABLE OF CONTENTS

SERIAL NUMBER LOCATION.................................................................................................................... 4

Warranty Registration Form & Inspection Report......................................................................................... 5

GRAIN-VAC WARRANTY............................................................................................................................ 6

TABLE OF CONTENTS............................................................................................................................... 7

1 INTRODUCTION................................................................................................................................ 8

2 SAFETY ............................................................................................................................................. 9

2.1 GENERAL SAFETY......................................................................................................................... 10

2.2 OPERATING SAFETY.................................................................................................................... 11

2.4 MAINTENANCE SAFETY................................................................................................................ 13

2.5 HYDRAULIC SAFETY..................................................................................................................... 13

2.6 STORAGE SAFETY ........................................................................................................................ 13

2.7 TRANSPORT SAFETY.................................................................................................................... 14

2.8 TIRE SAFETY.................................................................................................................................. 14

2.9 SAFETY SIGNS............................................................................................................................... 14

2.10 SIGN-OFF FORM ............................................................................................................................ 15

3 SAFETY DECAL LOCATIONS....................................................................................................... 16

4.1 OPERATION.................................................................................................................................... 20

4.2 TO THE NEW OPERATOR OR OWNER........................................................................................ 20

4.3 MACHINE COMPONENTS*........................................................................................................... 21

4.4 BREAK-IN........................................................................................................................................ 22

4.5 PRE-OPERATION CHECKLIST...................................................................................................... 22

4.6 EQUIPMENT MATCHING ............................................................................................................... 23

4.7 CONTROLS..................................................................................................................................... 24

4.8 ATTACHING/UNHOOKING............................................................................................................. 25

4.9 Machine Preparation........................................................................................................................ 27

4.9 MACHINE PREPARATION ............................................................................................................. 28

4.10 OPERATING.................................................................................................................................... 30

5 SERVICE AND MAINTENANCE...................................................................................................... 40

5.1 SERVICE ......................................................................................................................................... 40

5.1.1 FLUIDS AND LUBRICANTS............................................................................................................ 40

5.1.2 GREASING...................................................................................................................................... 40

5.1.3 SERVICING INTERVALS................................................................................................................ 41

5.1.4 SERVICE RECORD ........................................................................................................................ 46

5.2.1 BELT TENSION AND ALIGNMENT ................................................................................................ 47

5.2.2 BLOWER OIL CHANGING AND BREATHER CLEANING............................................................. 52

5.2.3 AIRLOCK ......................................................................................................................................... 53

5.2.4 SHEAR PIN...................................................................................................................................... 55

5.2.5 AIR SYSTEM RELIEF VALVES ...................................................................................................... 56

6 TROUBLE SHOOTING .................................................................................................................... 57

6.1 MOBILE TRANSFER UNIT .............................................................................................................. 57

6.2 PTO SHAFT...................................................................................................................................... 59

6.4 BLOWER .......................................................................................................................................... 61

6.5 V-BELT DRIVE ................................................................................................................................. 62

7. MECHANICAL SPECIFICATIONS*.................................................................................................. 63

7.2 BOLT TORQUE ................................................................................................................................. 64

8 GRAIN-VAC EXPLODED VIEW & PARTS LIST ADDENDUM ....................................................... 65

7614F Grain-Vac Operator’s Manual 34-100853-6

1 INTRODUCTION

Congratulations on your choice of a Walinga Grain-Vac to complement your farming operation. This
equipment has been designed and manufactured to meet the needs of the discriminating buyer for the
efficient moving of grains.

Safe, efficient and trouble free operation of your Grain-Vac requires that you and anyone else who will
be operating or maintaining the machine, read and understand the Safety, Operation, Maintenance and
Trouble Shooting information contained within the Operator’s Manual.

This Manual covers Model 7614F Grain-Vac made by Walinga Inc. Differences are explained where
appropriate. Some items shown may be optional. Specifications subject to change without notice.

Keep this manual handy for frequent reference and to pass on to new operators or owners. Call your
Walinga dealer if you need assistance, information or additional copies of the manual. Contact your
dealer for a complete listing of parts.

OPERATOR ORIENTATION – The directions left, right, front and rear, as mentioned throughout this
manual, are as seen from the driver’s seat and facing in the direction of travel using the North American
convention of driving on the right hand side of the road.

7614F Grain-Vac Operator’s Manual 34-100853-6 8

2 SAFETY

SAFETY ALERT SYMBOL

This Safety Alert
symbol means

ATTENTION!

BECOME ALERT!
YOUR SAFETY IS

INVOLVED!

Why is SAFETY important to you?

SIGNAL WORDS:

Note the use of the signal
words DANGER, WARNING
and CAUTION with the
safety messages. The
appropriate signal word for
each message has been
selected using the following
guidelines:

3 Big Reasons : Accidents Cost

Accidents Disable and Kill
Accidents Can Be Avoided

7614F Grain-Vac Operator’s Manual 34-100853-6 9

DANGER -

WARNING- Indicates a potentially hazardous

CAUTION - Indicates a potentially hazardous

Indicates an imminently hazardous

situation that, if not avoided will result
in death or serious injury. This signal
word limited to the most extreme
situations, typically for machine
components that, for functional
purposes, cannot be guarded.

situation that, if not avoided, could
result in death or serious injury, and
includes hazards that are exposed
when guards are removed. It may also
be used to alert against unsafe
practices.

situation that, if not avoided, may result
in minor or moderate injury. It may also
be used to alert against unsafe
practices.

The Safety Alert symbol identifies
important safety messages on the
Walinga Grain-Vac and in the
manual. When you see this
symbol, be alert to the possibility
of personal injury or death. Follow
the instructions in the safety
message.

SAFETY

YOU are responsible for the SAFE operation and maintenance of your Walinga Grain-Vac®. YOU

must ensure that you and anyone else who is going to operate, maintain or work around the Grain­Vac® be familiar with the operating and maintenance procedures and related SAFETY information
contained in this manual. This manual will take you step-by-step through your working day and alerts
you to all good safety practices that should be adhered to while operating the Grain-Vac®.

Remember, YOU are the key to safety. Good safety practices not only protect you but also the people
around you. Make these practices a working part of your safety program. Be certain that EVERYONE
operating this equipment is familiar with the recommended procedures and follows all the safety
precautions. Remember, most accidents can be prevented. Do not risk injury or death.

• Remember to be an efficient operator. An efficient operator is a very safe, cost efficient and
professional person.

• Grain-Vac® owners must give operating instructions to operators or employees before allowing
them to operate the equipment, and at least annually thereafter.

• The most important safety feature on this equipment is a SAFE operator. It is the operator’s
responsibility to read and understand ALL Safety and Operating instructions in the manual and to
follow these. All accidents can be avoided.

• Walinga feels that a person who has not read, understood and been trained to follow all operating
and safety instructions is not qualified to operate the equipment. An untrained operator exposes
himself and bystanders to possible serious injury or death.

• Do not modify the equipment in any way. Unauthorized modification may impair the function and/or
safety of the equipment and affect the life of the machine.

• Think SAFETY! Work SAFELY!

2.1 GENERAL SAFETY

1. Read and understand the Operators’ Manual and all safety signs before operating, maintaining,
adjusting or unplugging the Grain-Vac.

2. Only trained competent persons shall operate the Grain-Vac. An untrained operator is not
qualified to operate the machine.

3. Have a first-aid kit available for use should the need arise and know how to use it.

4. Have a fire extinguisher available for use should the need arise and know how to use it.

5. Do not allow riders.

6. Wear appropriate protective gear.
This list includes but is not limited to:

- A hard hat

- Protective shoes with slip resistant
Soles

- Protective goggles

- Heavy Gloves

- Wet weather gear

- Hearing protection

7614F Grain-Vac Operator’s Manual 34-100853-6 10

7. Place all controls in neutral, stop the engine or disconnect all electrical power sources, set the
park brake on tractor or towing vehicle, remove the ignition key and wait for all moving parts to
stop before servicing, adjusting, repairing or unplugging.

8. Wear appropriate hearing protection when operating for long periods of time.

9. All electrical connections should be in accordance to the National Electrical Code.

10. Ground all electrical equipment.

11. Know where overhead electrical lines are located and stay away from them. Electrocution can
occur without direct contact.

12. Review safety related items annually with all personnel who will be operating or maintaining the

Grain-Vac.

2.2 OPERATING SAFETY

1. Read and understand the Operator’s Manual and all safety signs before using.

2. Place all controls in neutral, stop the engine or disconnect all electrical power sources, set the
park brake on tractor or towing vehicle, remove the ignition key and wait for all moving parts to
stop before servicing, adjusting, repairing or unplugging.

3. Do not operate when any guards are damaged or removed, install and secure guards before
starting.

4. Keep hands, feet, clothing and hair away from all moving and/or rotating parts.

5. Do not allow riders on the Grain-Vac® or tractor during operation or transporting.

6. Clear the area of all bystanders, especially small children, before starting.

7. Attach securely to the tractor or towing vehicle using a retainer on the drawbar pin and a safety
chain.

8. Be sure the PTO driveline guard telescopes and rotates freely on the shaft before installing.
Attach safety chains on guard to prevent guard from rotating.

9. Stay away from overhead obstructions and power lines when extending boom and during
operation and transporting. Electrocution can occur without direct contact.

10. Keep away from the unloading boom when moving, adjusting, or setting. Keep others away.

11. Clean reflectors, SMV signs and lights before transporting.

12. Wear appropriate ear protection when operating for long periods of time.

13. Do not operate with any leaks in the hydraulic system or air system.

14. Do not place intake nozzle near feet when standing on the top of the product. Do not stand on the
pile of product that is being sucked up.

15. Before applying pressure to the hydraulic system make sure all components are tight and that all
steel lines, hoses and couplings are in good condition.

16. Review safety items with all personnel annually.

7614F Grain-Vac Operator’s Manual 34-100853-6 11

2.3 SAFETY AROUND BINS,SILOS, TANKS AND BOOT PITS

Working in and around bins, silos, and tanks and boot pits.

Grain-Vac operators and all other personnel assisting should strictly adhere to the procedures outlined
below before entering a storage structure. For additional details regarding these procedures, reference
OSHA Standards, or your local regulations. (see also Sect 4.10.1)

Entering a bin, silo, tank or other type of storage structure is
hazardous. You can suffocate and die from the materials stored
inside these structures. There also may be explosive, harmful or
poisonous gas or dust in the air.

Before entering a storage structure, a Grain-Vac operator and all other
personnel assisting should strictly adhere to safety procedures as
follows: (adapted from the

Safety, Health and Environment Committee.)

1. The machine operator(s) and all assisting personnel should be aware
of the actions they will take in the event of an emergency.

2. The machine operator(s) and all assisting personnel should be trained in the general and specific
safety hazards associated with their work tasks.

Kansas Grain and Feed Association’s

3. The machine operator(s) and all assisting personnel should be trained in the general procedures and
safety practices for entering and working in bins, silos, tanks or other storage structures, as well as the
safety procedures for handling special tasks concerning entering and working in such structures.

4. The atmosphere within a bin, silo, tank or storage structure should be tested for the presence of
combustible gases, dusts, vapors and toxic agents.

5. Ventilation should be provided until the unsafe conditions are eliminated or as long as there is a
possibility of recurrence of the unsafe conditions while the bin, silo, tank or storage structure is
occupied by personnel.

6. Anyone entering the bin, silo, tank, storage structure or boot pit, should wear an appropriate
respirator and protective clothing, as long as there is a possibility of any unsafe atmospheric
condition.

7. When entering bins, silos, tanks or storage structures from the top, personnel should wear a body
harness with lifeline, or use a boatswain’s chair.

8. An observer equipped to provide assistance and trained in rescue procedures, including notification
methods, should be stationed outside the bin, silo, tank or storage structure being entered. Visual,
voice or signal line communications should be constantly maintained between the observer and the
party in the bin, silo, tank or storage structure.

9. Equipment for rescue operations which is specifically suited for the bin, silo, tank or storage structure
being entered should be provided.

10. Do not enter bins, silos, tanks or storage structures under a bridging condition, or where a buildup
of materials could fall and bury you. It is also recommended that you do not walk or stand on grain or
other materials where the depth is greater than waist high.

11. Be aware of the extremely high suction at the intake nozzle. Stay away from nozzle intake area.

7614F Grain-Vac Operator’s Manual 34-100853-6 12

2.4 MAINTENANCE SAFETY

1. Follow ALL the operating, maintenance and safety information in the manual.

2. Support the machine with blocks or safety stands when changing tires or working beneath.

3. Follow good shop practices:
a. - Keep service area clean and dry.
b. - Be sure electrical outlets and tools are properly grounded.
c. - Use adequate light for the job at hand.

4. Use only tools, jacks and hoists of sufficient capacity for the job.

5. Place all controls in neutral, stop the engine, disconnect all electrical power sources, set the park
brake on tractor or towing vehicle , remove the ignition key and wait for al moving parts to stop
before servicing., adjusting, repairing or unplugging.

6. Make sure all guards are in place and properly secured when maintenance work is completed.

7. Before applying pressure to a hydraulic system, make sure all lines, fittings and couplers are in
good condition.

8. Relieve pressure from hydraulic circuit before servicing or disconnecting from tractor.

9. Keep hands, feet, hair and clothing away from all moving and/or rotating parts.

10. Place hydraulic controls in neutral and stop the engine before working on Grain-Vacs.

11. Clear the area of bystanders, especially small children, when carrying out any maintenance and

repairs or making any adjustments.

2.5 HYDRAULIC SAFETY

1. Make sure that all components in the hydraulic system are kept in good condition and are clean.

2. Replace any worn, cut, abraded, flattened or kinked hoses or metal lines immediately.

3. Relieve pressure before working on hydraulic system.

4. Do not attempt any makeshift repairs to the hydraulic fittings or hoses by using tape, clamps

or cements. The hydraulic system operates under extremely high-pressure. Such repairs will fail

suddenly and create a hazardous and unsafe condition.

5. Wear proper hand and eye protection when searching for a high pressure

hydraulic leak. Use a piece of wood or cardboard as a backstop instead
of hands to isolate and identify a leak.

6. If injured by a concentrated high-pressure stream of hydraulic fluid,

seek medical attention immediately. Serious infection or toxic
reaction can develop from hydraulic fluid piercing the skin surface.

7. Before applying pressure to the system, make sure all components are tight and that lines,

hoses and couplings are not damaged.

2.6 STORAGE SAFETY

1. Store unit in an area away from human activity.

2. Do not permit children to play on or around the stored machine.

3. Store the unit in a dry, level area. Support the base with planks if required.

7614F Grain-Vac Operator’s Manual 34-100853-6 13

2.7 TRANSPORT SAFETY

Refer to Section 4.11 TRANSPORTING - Towing (page 43) for detailed

information and regulations.

1. Make sure you are in compliance with all local regulations regarding transporting equipment on

public roads and highways.

2. Make sure that all the lights and reflectors that are required by local highway and transport

authorities are in place, are clean and can be seen clearly by all overtaking and oncoming traffic.

3. Make sure the discharge boom is placed in the transport position and resting in the boom saddle.

4. Attach securely to the towing vehicle using a retainer on the drawbar pin and a safety chain.

5. Do not allow anyone to ride on the Grain-Vac® or towing vehicle during transport.

6. Reduce speed on rough roads and surfaces.

7. Stay away from overhead obstructions and power lines. Electrocution can occur without direct

contact.

8. Always use hazard warning flashers on towing vehicle when transporting unless prohibited by

law.

9. Add extra lights or use pilot vehicles when transporting during times of limited visibility or as

required by local regulations.

Use ANSI/ASAE S279.17 July,2013 as a minimum standard for Lighting and Marking of

Agricultural Equipment on Highways whether towing the Grain-Vac during daytime or nighttime.

2.8 TIRE SAFETY

1. Failure to follow proper procedures when mounting a tire on a wheel or rim can produce an

explosion which may result in serious injury or death.

2. Do not attempt to mount a tire unless you have the proper equipment and experience to do the job.

3. Have a qualified tire dealer or repair service perform required tire maintenance.

4. Ensure that the tires are kept inflated to the proper pressure.

2.9 SAFETY SIGNS

1. Keep safety signs clean and legible at all times.

2. Replace safety signs that are missing or have become illegible.

3. Replaced parts that displayed a safety sign should also display the current sign.

4. Safety signs are available from your Distributor or the factory.

How to Install Safety Signs

• Be sure that the installation area is clean and dry.

• Be sure temperature is above 50°F (10°C).

• Decide on the exact position before you remove the backing paper.

• Remove the smallest portion of the split backing paper.

• Align the sign over the specified area and carefully press the small portion with the exposed sticky

backing in place.

• Slowly peel back the remaining paper and carefully smooth the remaining portion of the sign in

place.

• Small air pockets can be pierced with a pin and smoothed out using the piece of sign backing paper.

7614F Grain-Vac Operator’s Manual 34-100853-6 14

2.10 SIGN-OFF FORM

Walinga Inc. follows the general Safety Standards specified by the American Society of Agricultural
Engineers (ASAE) and the Occupational Safety and Health Administration (OSHA). Anyone who will
be operating and/or maintaining the Grain-Vac must read and clearly understand ALL Safety,
Operating and Maintenance information presented in this manual.

Do not operate or allow anyone else to operate this equipment until such information has been
reviewed. Annually review this information with personnel.

Make these periodic reviews of SAFETY and OPERATION a standard practice for all of your
equipment. We feel that an untrained operator is unqualified to operate this machine.

A sign-off sheet is provided for your record keeping to show that all personnel who will be working
with the equipment have read and understand the information in the Operator’s Manual and have
been instructed in the operation of the equipment.

SIGN-OFF FORM

DATE EMPLOYEE’S NAME EMPLOYER’S SIGNATURE

7614F Grain-Vac Operator’s Manual 34-100853-6 15

3 SAFETY DECAL LOCATIONS

The types and locations of some of the safety decals on the equipment, are shown on the next pages.
Good safety requires that you familiarize yourself with the various safety decals, the type of warning
and the area, or particular function related to that area, that requires your SAFETY AWARENESS.

• Think SAFETY! Work SAFELY!

Fig. 3-1 Typical Decals (Front Driverside)

Fig. 3-2 Typical Decals Rear Side Of Belt Cover.

REMEMBER - If safety decals have been damaged, removed, become illegible or parts are replaced
without decals, new signs must be applied. New decals are available from your authorized dealer or
factory direct.

7614F Grain-Vac Operator’s Manual 34-100853-6 16

3 SAFETY DECAL LOCATIONS (CONT’D)

A **

B

C D

7614F Grain-Vac Operator’s Manual 34-100853-6 17

3 SAFETY DECAL LOCATIONS

Fig. 3-3 Typical Decals On Receiver Tank

E

G

F

7614F Grain-Vac Operator’s Manual 34-100853-6 18

3 SAFETY DECAL LOCATIONS (CONT’D)

H

J

Fig. 3-4 Intake Nozzle Decal (Typical).

Fig. 3-5 Decal (With Belt Cover Removed.)

The types and locations of some of the safety decals on the equipment are shown on the preceding
pages. Good safety requires that you familiarize yourself with the safety decals, the type of warning and
the area, or particular function related to that area, which requires your SAFETY AWARENESS.

•

Think SAFETY! Work SAFELY!

REMEMBER - If safety decals have been damaged, removed, become illegible or parts are replaced
without decals, new decals must be applied. New decals are available from your authorized dealer or
factory direct.

7614F Grain-Vac Operator’s Manual 34-100853-6 19

4.1 OPERATION

4.2 TO THE NEW OPERATOR OR OWNER

The Walinga Grain-Vac is specifically
designed to vacuum up grains, and move it in
a stream of pressurized air. A high capacity
air pump moves the air through the machine
creating a vacuum on the intake side and
pressure on the outlet side. Be familiar with
all operating and safety procedures before
starting.

It is the responsibility of the owner and operator to read this manual and to train all other
operators before they start working with the machine. Follow all safety instructions exactly.
Safety is everyone’s business. By following recommended procedures, a safe working
environment is provided for the operator, bystanders, and the area around the worksite.
Untrained operators are not qualified to operate the machine.

7614F Grain-Vac Operator’s Manual 34-100853-6 20

Many features incorporated into this machine are the
result of suggestions made by customers like you.
Read this manual carefully to learn how to operate
the machine safely and how to set it to provide
maximum efficiency. By following the operating
instructions in conjunction with a good maintenance
program, your Grain-Vac will provide many years of
trouble-free service.

4.3 MACHINE COMPONENTS*

The air pumps or blowers are the key components in the Grain-Vac and are driven by the tractor PTO
through a belt drive system. The blower moves air through the machine. On the intake side, the blower
creates a vacuum in the receiver tank and intake lines for picking up grain. Grain is separated from the
stream of air in the receiver tank.

On the discharge side of the blower, the pressurized air flows through the airlock where it picks up a
metered quantity of grain and moves it out the lines to the discharge cyclone.

The airlock is rotated with hydraulics powered by the same power source as the blower. A hydraulic
cylinder or boom jack lifts the discharge boom for positioning.

A Receiver Tank
B Discharge Cyclone
C Belt Drive Cover
D Blower
E Boom Lift Cylinder
F Hydraulic Controls
G Intake

H Vacuum Relief Valve
J Topwind Jack
K PTO
L Airlock

M Pressure Relief Valve
N Intake Nozzle
O Intake Line

Fig. 4-1 Components - 7614F In Transport Mode.

7614F Grain-Vac Operator’s Manual 34-100853-6 21

4.4 BREAK-IN

orque drive belt bearings. Check belt drive for alignment, and belts for tension.

Although there are no operational restrictions on the Grain-Vac® when used for the first time, it is
recommended that the following mechanical items be checked:

A. After operating for 1/2 hour:

1. Re-torque all the wheel bolts.

2. Re-t

3. Disconnect PTO driveline or electrical lock-out connection, remove the belt cover, and turn blower
by hand. Be sure that it turns freely.

4. Open and clean the pre-cleaner door and tank.

5. Check that no hoses are pinched, rubbing or being crimped. Re-align as required.

6. Check for oil leaks. Stop leaks before continuing.

7. Check oil level in reservoirs. Add as required.

8. Lubricate all grease fittings.
B. After operating for 5 hours and 10 hours:

1. Re-torque all wheel bolts, fasteners and hardware.

2. Check hose routing.

3. Check that blower turns freely.

4. Open and clean the pre-cleaner door and tank.

5. Check oil level in reservoirs.

6. Then go to normal servicing and maintenance schedule defined in the Maintenance Section.

4.5 PRE-OPERATION CHECKLIST

Efficient and safe operation of the Walinga Grain-Vac® requires that each operator reads and
understands the operating procedures and all related safety precautions outlined in this section. A
pre-operation checklist is provided for the operator. It is important for both the personal safety and
maintaining the good mechanical condition of the Grain-Vac® that this checklist is followed.
Before operating the Grain-Vac® and each time thereafter, the following areas should be checked off.

1. Lubricate the machine per the schedule outlined in Section 5 Service and Maintenance.

2. Use only a tractor or power unit of adequate power to operate the Grain-Vac®.

3. Ensure that the machine is properly attached to the tractor/power unit. Be sure that the
retainer is installed in the drawbar pin and the safety chain is attached.

4. Check the hydraulic system. Ensure that the hydraulic reservoir in the tractor is filled to the
required specifications.

5. Check the oil level in the blower reservoirs.

6. Inspect all hydraulic lines, hoses, fittings and couplers for tightness. Use a clean cloth to wipe
any accumulated dirt from the couplers before connecting to the hydraulic system of the
tractor.

7614F Grain-Vac Operator’s Manual 34-100853-6 22

7. Check the tires and ensure that they are inflated to the specified pressure.

8. Check that the blower turns freely.

9. Open and clean the pre-cleaner door and tank.

10. Check for and remove entangled material.

11. Check that the PTO driveline is pinned to the tractor shaft and the guard is chained to the frame.

12. Close and secure all guards.

4.6 EQUIPMENT MATCHING

The Walinga Grain-Vac® is designed to be used with Agricultural tractors. To insure a good
performance, the following list of specifications must be met:

1. Horsepower: The 7614F Grain-Vac requires 120HP (90Kw)

2. Drawbar Dimensions: (Fig. 4-2)

The tractor drawbar dimension must be 16 inches between the end of the shaft and drawbar pin
hole center. This will provide sufficient clearance for turning and allow telescoping of the shaft.
Consult your tractor manual for the drawbar adjustment procedure.

Fig. 4-2 Drawbar

3. PTO Shaft:
The tractor PTO shaft must meet these specifications:

1000 RPM - 21 spline, 1 3/8 inch diameter.

IMPORTANT

It is not recommended that shaft adaptors be used on the tractor shaft to prevent operating
at the wrong RPM. Use extra care when using a tractor with a shift able PTO speed.

4. Hydraulic System:

The power unit must have one remote hydraulic valve to operate the airlock hydraulic motor
and one to operate the boom lift circuit. The system must be capable of 15 gpm (56 lpm) @ 1500
psi (10,300 kPa). Either closed-centre or open-centered system can be used.

7614F Grain-Vac Operator’s Manual 34-100853-6 23

4.7 CONTROLS

All controls on the Grain-Vac® are located on the rear of the machine. Review this section carefully
to familiarize yourself with the function and movement of each control before starting.

1 - Airlock Control (fig 4-3)

The left valve controls the operation of the airlock. Pull on the control to operate the airlock in the

forward direction and push to operate in the reverse direction. Stop the airlock by placing the
lever in the centre neutral position.

2 - Boom Lift (Control fig 4-3)

This valve controls the boom position. Pull on the lever to raise the boom and push to lower.

Place in the centre position for no boom movement.

Fig. 4-3 Controls .

IMPORTANT

Do not attempt to raise the boom

while the airlock is in operation.

Airlock control must be in the centre neutral

position for the boom to raise or lower.

Do not operate for long periods of time in the reverse direction. The rotor is not designed to

operate in the reverse direction. Reverse rotation may be used to free jammed object in rotor
only.

7614F Grain-Vac Operator’s Manual 34-100853-6 24

4.8 ATTACHING/UNHOOKING

The Grain-Vac® should always be parked on
a level, dry area that is free of debris and
foreign objects.

Follow this procedure when attaching:

1. Clear the area of bystanders and remove
foreign objects from the machine and
working area.

2. Make sure there is enough room to back
the tractor/power unit up to the hitch point.

3. Start the tractor/power unit and slowly
back it up to the hitch point.

4. Stop the tractor /power unit, place all
controls in neutral, set park brake and
remove ignition key before dismounting.

5. Adjust the length of the drawbar to give
the appropriate dimension between the
PTO shaft and drawbar pin hole. (Refer to
Tractor Operator's Manual).

6. Use the jack to raise or lower the hitch
pole to align with the drawbar.

7. Install a drawbar pin with provisions for a
mechanical retainer such as a Klik pin.
Install the retainer.

Fig. 4-4 Drawbar

Fig. 4-5 Pin Retainer.

7614F Grain-Vac Operator’s Manual 34-100853-6 25

8. Connect the PTO shaft:
a. Check that the PTO driveline

telescopes easily and that the shield
rotates freely.
b. Attach the driveline to the tractor by

retracting the locking pin or pulling back

on the lock collar. Slide the yoke over the

shaft and push on the yoke until the lock

pin or lock collar clicks into position. Be

sure the unit is locked in position.

c. Connect the anchor chains between

the shield on the PTO shaft and the

frame.
d. Lower the shaft storage stand.

Shut off the tractor.

9. Connect the hydraulics.

To connect, proceed as follows:

a. Use a clean cloth or paper towel to

clean the couplers on the ends of the
hoses. Also clean the area around the
couplers on the tractor.

b. Remove the plastic plugs from the

couplers and insert the male ends.

c. Connect the remaining coupler. Be

sure to match the system with the
desired control lever in the tractor.

Fig. 4-6 PTO Shaft Connected.

10. Route the hoses along the hitch and
secure in position to prevent
entanglement with any moving parts.

Fig. 4-7 Attached To Tractor.

11. Install safety chains between the
tractor and the machine tongue.

12. Raise the hitch jack and rotate it 90° to
place in its stowed position.

13. When unhooking the tractor

unit, reverse the above procedure.

7614F Grain-Vac Operator’s Manual 34-100853-6 26

27

4.9 Machine Preparation

Before the Grain-Vac can be used it must be
set up and prepared for operation.

When setting-up, follow this procedure:

1. Clear the area of bystanders,
especially small children.

2. Be sure you select a spot that has
sufficient space to locate the machine
and enough clearance to allow trucks
to drive under the discharge cyclone.

3. Position the machine approximately 8
feet from the storage facility. The PTO
shaft should be straight, by having the
tractor and machine in a straight line.

4. Engage hydraulic lever to operate the
hydraulic circuit.

5. Place all other controls in neutral and
set park brake on the tractor before
dismounting.

6. Remove the plug from the receiver
tank inlet.

7. Remove the intake nozzle from its
storage position on the frame and
install on the end of the steel flex tube.
Secure in position using the wing bolts
on the coupler.

8. Connect the 8 foot steel flex tube to
the inlet. Tighten the wing bolts on the
coupler to lock the tube securely in
place.

Try to have the hose as

straight as possible.

Fig. 4-8 Bin Clearance 8 ft

Fig. 4-9 Flex Tube Installation.

7614F Grain-Vac Operator’s Manual 34-100853-6

4.9 MACHINE PREPARATION

9. Lift upper boom extension out of the
saddle.

10. Swing upper boom extension around
180 deg until air line is straight.

11. Secure upper boom extension by
clamping the latch eye over hook.
Adjust clamp if it is necessary to
prevent air leakage at joint. For added
security insert pin through latch handle.

Fig. 4-10 Mid Boom Lock & Boom Saddle.

FIG. 4-11 Lower Boom Lock

12. Raise the coupled upper boom and mid

boom by pulling on the boom lift control
lever. (fig. 4-3) Continue to raise the
boom until the mid boom lines up with
the lower boom. (fig 4-12)

Fig. 4-12 Coupling Upper Boom & Mid Boom

7614F Grain-Vac Operator’s Manual 34-100853-6 28

13 Couple the lower boom to the mid boom
extension by clamping the latch eye over
hook. Adjust clamp if it is necessary to
prevent air leakage at joint. For added
security insert pin through latch handle.
.

Fig. 4-13 Positioning

15. Ensure the discharge boom is in a

working position to allow a truck to drive
under the discharge cyclone. (fig. 4-14)

16. Reverse the above procedure when
finished working and placing into the
storage or transport configuration.

Fig. 4-14 Placement

7614F Grain-Vac Operator’s Manual 34-100853-6 29

4.10 OPERATING

When operating the Grain-Vac, follow this
procedure:

1. Clear the area of bystanders,
especially small children, before
starting.

2. Be sure the machine is attached to the
tractor/power unit as per Sect.4.8.

3. Review and follow the Pre-Operation
Checklist (Section 4.5).

4. Be sure the machine is correctly
positioned and set-up per Section 4.9.
The trucks should have ample space
and clearance to drive under the
discharge cyclone.

5. Keep the PTO driveline as straight as
possible to have the universal joint
angles as small as possible.

6. Place chocks in front and behind the
tractor tires to it prevent moving.

7. START MACHINE

A. STARTING MACHINE:

a. Start the tractor, run at low idle.
b. Preliminary airlock setting:

i. Engage the tractor hydraulics to start
the airlock.

ii. Return the engine speed to low idle
and stop the airlock.

Fig. 4-15 Starting Machine

7614F Grain-Vac Operator’s Manual 34-100853-6 30

4.10 Starting Machine (cont’d)

c. Check that the machine hydraulics are

matched to the tractor hydraulics.

d. With the tractor at a low idle, slowly

engage the PTO.

e. Increase the engine speed until it is at

3/4 throttle.

f. Engage airlock hydraulics. Be sure

airlock is turning in the forward direction.

g. Operate the machine at 3/4 speed for 10

minutes to warm the system before
putting under a full load.

IMPORTANT

It is important to warm the hydraulic

system and the blower reservoirs before

going to the rated speed. The blower will

not "warm up" unless the product is

being conveyed.

h. Open the air-slide approximately 2

inches and insert into the grain. Operate
at this setting until the machine is warm

(10 minutes).
j. After the warm up period, bring the

machine to capacity.

i. Increase the engine speed to the

rated PTO RPM.
ii. Close the air-slide until the intake line
starts to pulsate. Open the air-slide
slightly to stop it from pulsing.
iii. Watch the glass door in receiver tank
to determine how the product is moving
through the machine(Fig. 4-16) The glass
can be covered but it should not be
stationary. If more of the product is being
drawn in than discharged, the product will
lay stationary against the window.

Fig. 4-16 Watch Product Movement Behind
Glass Door.

4.10 OPERATING (cont'd)

7614F Grain-Vac Operator’s Manual 34-100853-6 31

8. Maximum Capacity:

a. The nozzle should be placed into the

grain with the inlet below the surface of
the grain but not below the air-slide. It is
recommended that some air be allowed to
enter with the grain to obtain the best
capacity.

b. Open the air-slide about 3-4 inches to

start. Close the air-slide until the machine
starts to pulsate. Then open the air-slide
until the pulsing stops. This will give a
balanced grain and airflow condition.

Fig. 4-17 Nozzle in Bin

7614F Grain-Vac Operator’s Manual 34-100853-6 32

4.10 OPERATING

8. Maximum Capacity (cont'd):

c. Watch the amount of grain on the window

in the receiver tank. Keep the window full
yet keep the product moving.

There are several ways to control the
amount of grain on the window:

i. Decrease the amount of grain entering
the nozzle.

ii. Increase airflow by opening air-slide.

The airlock acts as a seal between the
vacuum and pressure sides of the circuit.
Increasing the airlock speed normally will
remove product from the receiver faster.
Refer to Airlock Speed Chart as a guide.

When moving certain specialty crops, ie,
sunflower seeds, lentils and others, it is
necessary to slow the airlock speed to allow
more time for the product to enter the pocket.

Experiment with slowing the speed to
increase the capacity.

Airlock speed can be run too fast, not
allowing the product to fill each airlock
pocket. Never exceed the recommended
speeds!

9. Specialty Crops:
a. Operating:

When handling specialty products such
as sunflower seeds, lentils etc, it is
recommended that the PTO speed be
reduced by 1/4 to 1/2 the rated RPM.
This gives a gentler action through the
machine.

Fig. 4-18 Product In the Window.

Fig. 4-19 In Operation.

7614F Grain-Vac Operator’s Manual 34-100853-6 33

4.10 OPERATION (cont’d)

9.

b. Storage:

To prepare the machine for storage,
remove the inlet pipe and spray the
blower clean with water, then run at idle
for 5 minutes to dry the inside of the
tank, piping, blower and airlock. This
will prevent any residue from caking on
the internal components.

10. Use the regular nozzle until there is
approximately 12 inches of the grain left
in the bin. Then switch to the clean-up
nozzle to pick up the last of the grain.

11. When using the clean-up nozzle, it is
recommended that the rubber intake
hose be installed to allow you to move
around to pick up the grain from the
corners more easily.

12. Stopping Machine:

a. Remove the intake nozzle from the

grain.
b. Allow the unit to run until the grain

has stopped coming out the cyclone.
c. Stop the airlock.
d. Slow the engine speed down to a low

idle for 5 minutes.
e. Disengage the hydraulic circuit and

slowly disengage the PTO clutch.
f. Stop the engine.

Fig. 4-20 Using The Clean-Up Nozzle In the Bin.

Fig. 4-21 Nozzle and Hose Storage

7614F Grain-Vac Operator’s Manual 34-100853-6 34

4.10 OPERATION

14. Operating Hints:

a. Try to keep the hoses as full as possible to

have maximum capacity.

b. Keep the PTO driveline as straight as possible

to minimize the universal joint angles.

c. Pull the intake nozzle out of the grain and

empty the machine before changing trucks.

d. Maximum efficiency is obtained with large
airflow lines. Use the smaller rubber lines only

for final clean-up.

e. Route the lines to minimize bends and corners.

If a corner is necessary, use a large radius
elbow.

f. Operate only at the rated speed and never use

PTO adaptor shafts.

g. Keep the lines as short as possible to

minimize friction losses.

h. If long distance moving is required, push the

grain rather than pull the grain.

i. If long distance moving is required, use solid

metal tubing whenever and wherever possible.

j. If the airlock becomes jammed, use the
hydraulics to reverse the direction of the airlock
rotation and to clear the obstruction. Do not

reach in with your hands to clear the
obstruction.

k. When on top of the grain, do not push the

nozzle into the pile next to the feet. The suction
will pull the nozzle and the operator into the
pile. If the pile is deep enough, the operator
can be submerged under the grain and be
suffocated.

Fig. 4-22 Unloading Into Truck.

7614F Grain-Vac Operator’s Manual 34-100853-6 35

4.10 OPERATION (cont'd)

15. Entering Bins,Silos,Tanks
and Boot Pits: (see also Section 2.3)

a. Make sure the bin is properly vented.
b. Only enter silos or bins when the grain

levels have been lowered to less than

12 in (25cm) above solid footing.
c. Do have a person watching out for you.

1x. Silo Bags:

Do not enter the silo bags-- always slice
the sides of the silo bags open and roll
back the sides before removing the
grain.

Note: Do not enter the bin or the silo when
grain is stuck on the walls. Avalanching
grain can cause suffocation!

Fig. 4-28 Seconds to Suffocation

7614F Grain-Vac Operator’s Manual 34-100853-6 36

37

4.11 TRANSPORTING (Towing)

Walinga Grain-Vac are designed to be easily
and conveniently moved from location to
location.

When towing, follow this procedure:

1. Be sure all bystanders are clear of the
machine.

2. Be sure that the Grain-Vac is hitched
positively to the towing vehicle. Always use
a retainer in the drawbar pin and a safety
chain between the machine and the towing
vehicle. Always remove the PTO shaft

Use ANSI/ASAE S279.17 July 2013 as a
minimum standard for Lighting and
Marking of Agricultural Equipment on
Highways whether towing the Agri-Vac
during daytime or nighttime.

If the Grain-Vac obstructs any lights/reflectors
or SMV emblems on the towing vehicle, the
lights/reflectors or SMV emblems being
obstructed must also be installed on the
Grain-Vac using the ANSI S279.17 July 2013
standard.

when towing the Grain-Vac on public
roads.

3. Keep to the right (using North American
convention) and yield the right-of-way to
allow faster traffic to pass. Drive on the
road shoulder, if permitted by law.

4. Do not allow riders on the towing machine

or the tractor.

5. During periods of limited visibility, use pilot

vehicles or add extra lights to the
Grain-Vac.

*NOTE: Local regulations may require or
disallow certain lamps, (e.g.beacons) ,
and/or operating modes, (e.g. flashing red
lamps) Any such regulations take
precedence in their area of jurisdiction
over the requirements of the ANSI S279.17
July 2013 standard.

7614F Grain-Vac Operator’s Manual 34-100853-6

uipment

4.11 TRANSPORTING -Towing (cont’d)

6. **Make sure the SMV (Slow Moving Vehicle)
emblem and all the lights and reflectors that
are required by the local highway and
transport authorities are in place, are clean
and can be seen clearly by all overtaking and
oncoming traffic.

**The SMV (Slow Moving Vehicle) emblem

can only be displayed when the Grain-

Vac is being towed at speeds less

40 kph (25 mph). see ANSI S276.7.7.2.3

*The SMV emblem shall be removed or

covered when the Grain-Vac is being

towed at a speed that is greater

40 kph (25 mph)

7. Stay away from overhead power lines.

Electrocution can occur without direct
contact.

8. Make sure the discharge boom is placed

in the transport position and resting in the
boom saddle.

10. Always use hazard flashers on the tractor

when transporting unless prohibited by
law.

11. Secure all the components and
accessories before transporting.

12. Make sure that all the lights and reflectors

that are required by local highway and
transport authorities are in place, are
clean and can be seen clearly by all
overtaking and oncoming traffic.

than

than

Table 3 Road Speed vs Weight Ratio

Weight of fully equipped

Road Speed

Up to 32 kph

(20 mph)

Up to 16 kph

(10 mph)

Do not tow

It is not recommended that the machine be
transported faster than 20 mph (32 kph). Table 3
gives the acceptable transport speed as the ratio
of the weight of the towing vehicle to the
machine weight.

or loaded Grain-Vac(s)

relative to the weight of

the towing machine.

1 to 1 or less

2 to 1 or less

More than 2 to 1

Fig. 4-23 Transport Mode

7614F Grain-Vac Operator’s Manual 34-100853-6 38

4.12 STORAGE

At the end of the season, the machine

should be thoroughly inspected and

prepared for storage. Repair or replace

any worn or damaged components to

prevent any unnecessary down time at

the start of next season.

Follow this procedure when storing:

1. Wash the entire machine thoroughly
using a water hose or pressure washer
to remove all dirt, mud, debris or
residue.

2. Retract and secure all the accessories
and components.

3. Lubricate all the grease points. Make
sure all the grease cavities have been
filled with grease to remove any water
residue from the washing.

4. Inspect all the hydraulic hoses, fittings,
lines, couplers and valves. Tighten any
loose fittings. Replace any hose that is
badly cut, nicked or abraded or is
separating from the crimped end of the
fitting.

5. Check the oil level in the blower
reservoirs. Bring the oil level to the
recommended level.

6. Install the plugs into the receiver tank inlet.

7. Apply "never seize" or grease to the PTO
input shaft and the boom cylinder ram.

8. Remove PTO shaft and store inside.

9. Touch up all paint nicks and scratches
to prevent rusting.

10. All hoses should be stored inside or
under a shelter.

11. Move the machine to its storage position.

12. Select an area that is dry, level and free
of debris.

13. Place planks under the jack for added
support.

14. Unhook the machine from the
tractor/power unit. (Refer to Section 4.8)

7614F Grain-Vac Operator’s Manual 34-100853-6 39

5 SERVICE AND MAINTENANCE

5.1 SERVICE

5.1.1 FLUIDS AND LUBRICANTS

1. Grease:

Use an SAE multi-purpose high temperature
grease with extreme pressure (EP)
characteristics.
Also acceptable is an SAE multi-purpose
lithium based grease.

2. Blower Oil:

Use Walinga Blower oil (part# 98-13813-6)
Reservoir Capacity: +1 1/4 quarts

Table 4

Model 7614F

Front 1 litre

Rear 2 litre

3. Storing Lubricants:

Your unit can operate at top efficiency only if
clean lubricants are used. Use clean containers
to handle all lubricants. Store them in an area
protected from dust, moisture and other
contaminants.

5.1.2 GREASING

Refer to Section 5.1.1 for recommended grease. Use
the Service Record checklist provided to keep a
record of all scheduled servicing.

1. Use a hand-held grease gun for all greasing.

2. Wipe the grease fitting with a clean cloth before
greasing, to avoid injecting dirt and grit.

3. Replace and repair broken fittings immediately.

4. If the fittings will not take grease, remove and
clean thoroughly. Also clean the lubricant
passageway. Replace the fitting if necessary.

7614F Grain-Vac Operator’s Manual 34-100853-6 40

5.1.3 SERVICING INTERVALS

Every 8 Hours or Daily

1. Lubricate the PTO shaft (4 locations).

2. Check the tension and alignment of the
input drive belts. See Maintenance
Section 5.2.1

Fig. 5-1 PTO Shaft Lubrication Points.

Fig. 5-2 Drive Belts.

7614F Grain-Vac Operator’s Manual 34-100853-6 41

5.1.3 SERVICING INTERVALS (cont’d)

Every 8 Hours or Daily (cont’d)

3. Check the oil level in the blower reservoirs
(2 locations).

4. Clean blower breathers

Fig. 5-3 Blower Reservoir Schematics.

Fig. 5-4 Blower Breathers

Fig. 5-5 Blower Reservoirs (Rear)

7614F Grain-Vac Operator’s Manual 34-100853-6 42

5.1.3 SERVICING INTERVALS

Every 20 Hours

1. Lubricate the PTO shaft (1 location – see
Fig. 5-1).

2. Lubricate the blower drive shaft.

3. Check the airlock wiper blades

Every 40 Hours

1. Lubricate the PTO shaft (2 locations- see
FIG. 5-1).

2. Lubricate the exposed rod end of the
boom lift cylinder with “never seize”
(1 location).

3. Lubricate the splined input shaft and
bearings (2 locations).

Fig. 5-6 Boom Cylinder.

Fig. 5-7 Splined Shaft.

7614F Grain-Vac Operator’s Manual 34-100853-6 43

Every 40 Hours (cont’d)

4. Lubricate the outboard bearing
(2 locations)

5.1.3 SERVICING INTERVALS

Every 100 Hours or Annually

1. Change the oil in the blower reservoirs
(2 locations)

Fig. 5-8 Outboard Bearing.

Fig. 5-9 Blower Reservoirs.

7614F Grain-Vac Operator’s Manual 34-100853-6 44

Every 100 Hours or Annually (cont’d)

2. Check the function of the vacuum and
pressure* relief valves.

3. Check the airlock tip blade clearances. If
clearances are over .010 adjust the
blades

Fig. 5-10 Vacuum Relief Valve.

(*pressure relief valve is optional)

Fig. 5-11 * Pressure Relief Valve.

3. Check the condition of the air line seals.

Fig. 5-12 Boom Line Seal.

Fig. 5-13 Flex Hose Seals.

7614F Grain-Vac Operator’s Manual 34-100853-6 45

5.1.4 SERVICE RECORD

See Lubrication and Maintenance sections for details of service.
Copy this page to continue record.

HOUR READING AT

TIME OF SERVICE:

SERVICED BY:

Every 8 Hours or Daily

Lubricate PTO Shaft (4)

Check Tension and Align
Input Drive Belts

Check oil level in Blower
Reservoirs (2)

Clean Blower Breathers

Every 20 Hours

Lubricate PTO Shaft

Lubricate Blower Driveshaft

Check Airlock Wiper Blade

Every 40 Hours

Lubricate PTO Shaft (2)

Lubricate Rod end of
Boom Lift Cylinder

Lubricate Splined Input
Shaft and Bearings (2)

Lubricate Blower Outboard
Bearing (2)

Every 100 Hrs or Annually

Change Oil in Blower
Reservoirs (2)

Check Vacuum & *Pressure
Relief Valves

Check Air Line Seals

Reset Airlock Blades if

* optional pressure relief

Required

Reset Airlock every 60000
bushels (1600 tonnes)

7614F Grain-Vac Operator’s Manual 34-100853-6 46

47

5.2 MAINTENANCE

By following a careful service and maintenance program for your machine, you will enjoy many
years of trouble-free service.

5.2.1 BELT TENSION AND ALIGNMENT

Rotational power from the engine is transmitted to the blower through the belt drive. To obtain
efficient transmission of power and good belt life, ensure the belts are properly tensioned and the
pulleys are aligned.

Belts that are too tight will stretch and wear quickly or overload the bearings on the input shaft or
the blower. Belts that are too loose will not transmit the required power and will slip, overheat and
wear out quickly. Pulleys that are not aligned will result in rapid belt wear.

Follow this procedure when checking and adjusting the belt tension and the pulley alignment.

1. Clear the area of bystanders, especially small children.

2. Place all controls in neutral, stop the tractor, remove ignition key and wait for all
the moving parts to stop before dismounting.

3. Unhook the PTO driveline from the tractor shaft. This will allow you to turn the
pulleys if required.

4. Remove the bolts securing the belt cover, and remove the belt cover. Lay the belt cover to the side.

Table 5 Belt Deflection

Model PTO

Belt Tension

New Belt Old Belt

Deflection

7614F 1000

16 lbs. (7.3kg) 12 lbs. (5.4 kg) 3/8 inch (9.5mm)

7614F Grain-Vac Operator’s Manual 34-100853-6

5.2.1 BELT TENSION AND ALIGNMENT

5. Use a 10 pound weight to determine the
belt deflection in a static condition.

Fig. 5-14 Belt Deflection

Fig. 5-15 Belt Deflection.

6. Adjusting Tension:

a. Loosen the jam nuts on the adjusting
bolts. Loosen bearing bolts slightly.

b. Turn the adjusting bolt to set the tension.
Turn both bolts the same amount to
maintain pulley alignment.

c. Check the tension again.
Over tightening will cause belt stretching
and overload the bearing. Belts that are
too loose will slip, tear and wear rapidly.
Check alignment, see next section.

d. Tighten the jam nuts. Tighten the bearing
bolts.

Fig. 5-16 Adjusting Bolts.

e. Install and secure the belt cover with
two bolts.

7614F Grain-Vac Operator’s Manual 34-100853-6 48

7. Pulley Alignment:

a. Lay a straight-edge across the faces of
the two pulleys.

b. If the gap between the pulley and the
straight-edge exceeds 1/16 in (1.5 mm),
the pulleys must be realigned.

c. Review the types of alignment before

starting.

Fig. 5-17 Pulleys

Fig. 5-18 Misalignment

7614F Grain-Vac Operator’s Manual 34-100853-6 49

5.2.1 BELT TENSION AND ALIGNMENT (cont’d)

7. Pulley Alignment (cont'd):

d. Use the adjusting bolts on the input shaft
to align the input pulley. Tighten jam nuts
when alignment has been completed.

Fig. 5-19 Adjusting Bolts At Input Shaft.

e. Use the bearing housing assembly

anchor bolts to align the blower pulley.
Tighten anchor bolts to their specified

torque.
f. Set the belt tension.
g. Install and secure the belt

cover with two bolts.

8. Be sure all guards are installed and
secure before resuming work.

Fig. 5-20 Adjusting Anchor Bolts At Bearing
Housing Assembly.

7614F Grain-Vac Operator’s Manual 34-100853-6 50

5.2.2 BLOWER OIL CHANGING AND BREATHER CLEANING

The gears that drive and time the blower lobes
run in an oil bath for lubrication. Maintaining the
correct level in the reservoirs and changing
every 100 hours will insure proper lubrication.

When maintaining the blower, follow this
procedure:

1. Clear the area of bystanders, especially
small children.

2. Place all the controls in neutral, stop the
engine and the remove ignition key and
disconnect the PTO drive line source
before starting maintenance.

3. Checking Oil Level:

a. Remove the level plug in each
reservoir or check the sight glass.

IMPORTANT

Check the oil level only when the oil is

cold and the machine is level.

b. Oil in the reservoir should just fill the
threads of the level plug hole.

c. Add oil if low or allow the reservoir to
drain if overfilled.

Fig. 5-21 Blower Schematics.

IMPORTANT

It is necessary to maintain the

Fig. 5-22 Blower (Rear)

recommended oil level in the reservoir. A low

level causes heating from lack of lubrication

and rapid gear and bearing wear. Too much oil

causes heating from oil churning and can

cause seal and breather leaks.

d. Install and tighten the level plug.

Fig. 5-23 Blower (Front)

7614F Grain-Vac Operator’s Manual 34-100853-6 51

5.2.2 BLOWER OIL CHANGING AND BREATHER CLEANING

4. Changing Oil:

a. Place a collection pan or pail under

each drain plug.
b. Remove each drain plug.
c. Flush each case and allow several

minutes to drain.
d. Dispose of the oil in an approved

manner. Do not contaminate the
worksite with used oil.

e. Install and tighten the drain plugs.
f. Remove the fill and level plugs.

g. Add Walinga Blower oil or equivalent
to each reservoir until the oil is just
starting to come out of the level plug
hole.

IMPORTANT

Condensation forms and collects inside

the reservoirs during machine
operation. Changing oil removes this
water and prevents it from damaging

the gears and bearings.

h. Install and tighten the level and fill
plugs.

5. Cleaning Breathers:

a. Remove the breathers, and blow the
breathers out with an air hose.

b. If dirt has caked up in the breather,
soak the breather in good solvent and
then blow out.
It may be necessary to use a probe to
loosen the dirt.

c. Install and tighten the breather.

d. Clean the vents in end plates located
under the blower on either side of the
drain plug.

Fig. 5-24 Blower Schematics.

Fig. 5-25 Breathers

7614F Grain-Vac Operator’s Manual 34-100853-6 52

5.2 MAINTENANCE (cont’d)

5.2.3 AIRLOCK

The airlock acts as a seal between the
vacuum and pressure sides of the machine
and is located at the bottom of the receiver
tank. As the rotor turns, a pocket is filled with
material when the rotor points upward. As the
pocket rotates, material is moved to the
bottom and is moved into the pressure side of
the system. The material is picked up by the
stream of pressurized air is and moved out of
the discharge piping.

Efficient operation of the airlock requires a
close fit between the tips of the rotor and the
case to maintain a seal between the vacuum
and pressure sides.

When checking or maintaining the airlock,
follow this procedure:

1. Clear the area of bystanders, especially
small children.

2. Disconnect the hydraulic lines from the
tractor to prevent the airlock from
operating.

3. Checking the Tip Clearance:

a. Checking the airlock can be done through
the access door.

b. Use a feeler gauge to check the clearance
between the tip and the case. Inspect
each tip over its entire width.

c. The clearance of the tips must be
maintained at .006in - .008in

Adjust or replace the tips as required to
insure system sealing.

d. Replace any tips that are bent, chipped or
broken.

Fig. 5-26 Airlock

Note:

Reset Airlock every 60000

bushels (1600 tonnes)

NOTE:

Blades are reversible if they are

not excessively damaged.

Fig. 5-27 Checking Tip Clearance Through The
Access Door.

7614F Grain-Vac Operator’s Manual 34-100853-6 53

5.2.3 AIRLOCK

4. Wiper Blade

A wiper blade is located at the top of the
airlock to clean the tips as the airlock turns.

To check the wiper blade, follow this
procedure:

a. Open the access door on the receiver tank.
b. Reach into the top of the airlock and feel

the condition of the wiper blade.

- Adjust if necessary
c. Replace the blade if it is damaged in any

way.

5. Blade Replacement:
a. Shut the PTO off and disconnect the
hydraulic hoses from the tractor.

b. Remove the quick connect plugs from
the hydraulic lines.

c. Lift the receiver tank off the airlock.
d. Remove the tips from the rotor and the

wiper blade from the housing.

e. Mount the blades to their respective vane
and tighten the bolts finger tight.

f. Rotate airlock rotor slightly to set the
clearance between the blade and the

case.

Be sure to set the blades at the minimum

applicable clearance. Use a feeler gauge.

g. Tighten the centre bolt first. Then the

others.

h. Rotate the airlock and listen if the blades
touch the housing anywhere. A slight
touch is alright.

Hint: Number blades when done.

i. Repeat mounting procedure with the
other blades.

j. Turn the rotor all the way around after
each blade is installed to be sure no
blades contact the case.

k. Mount the new wiper blade. Be sure the
wiper contacts each tip slightly as the
airlock turns. (1/16

th

inch)
l. Install and secure the tank.
m. Connect the hydraulic lines and close

the access door.
n. Run the airlock at operating speed.
o. Clean thoroughly.

Fig. 5-28 Check Wiper Blade Through The
Access Door

7614F Grain-Vac Operator’s Manual 34-100853-6 54

5.2.4 SHEAR PIN

Each PTO driveline is equipped with a shear
bolt on the machine end of the driveline. It is
used to protect the Grain-Vac from overloading.
When replacing the shear bolt, follow this
procedure:

1. Clear the area of bystanders, especially small
children.

2. Place all controls in neutral, stop the engine,
set the park brake, remove the ignition key
and wait for all moving parts to stop before
dismounting.

3. Remove any remaining bolt parts from the
yoke assembly. It may be necessary to use a
hammer and punch to remove the old parts.
Be careful not to enlarge the holes.

4. Shear bolts can be replaced with a standard
shear bolt with UNC thread. Check with
Walinga’s Engineering Department for the
proper size for your year and model.

5. For the size of the shear pin for the single pin
and the double pin assembly contact the
Walinga Engineering Department.

7614F Grain-Vac Operator’s Manual 34-100853-6 55

5.2.5 AIR SYSTEM RELIEF VALVES

The air in this system is moved by the blower.
It draws air into the intake side and creates a
vacuum that can pick up and draw the
material into the system. As the air moves
through the blower, it becomes pressurized
and flows through the airlock to move the
material out of the system and to its
destination. As the flow into the intake is
restricted, the vacuum will build until it
exceeds the setting of the intake relief valve.
The valve opens to supply a flow of air to the
blower to prevent overheating. A relief valve
on the pressure side will also open to allow air
flow if the airlock (outlet pressure side of the
circuit) is restricted or plugged.

The vacuum side relief valve is set to open at
16 in. Hg vacuum and the pressure relief valve
at 15 psi. Both must function at very close to
these specified levels to insure optimum
capacity and performance. After prolonged
use, the springs in these valves can weaken
causing the valve to open prematurely and
affect machine performance. Dirt and debris
can get caught in the valve seat allowing air
leakage that affects system performance.

To maintain air system relief valves, follow
this procedure:

1. Listen for the valves opening during
operation. They will sound like a popping or a
whistle if they are opening.

2. Install gauges on the vacuum and pressure

sides of the air system.

Fig. 5-30 Vacuum Relief Valve.

Fig. 5-31 *Pressure Relief Valve.*(optional)

Pressure Relief Valve only supplied with bin fill kit.
Bin Fill Kit: Part #11-99512-5

7614F Grain-Vac Operator’s Manual 34-100853-6 56

6 TROUBLE SHOOTING

The Walinga Grain-Vac is a high capacity air pump that creates a vacuum for picking up grain and
supplies pressurized air for moving the grain. It is a simple and reliable system that requires
minimum maintenance. In the following section, we have listed many of the problems, causes and
solutions to the problems that you may encounter.

If you encounter a problem that is difficult to solve, even after having read through this trouble
shooting section, please call your Walinga dealer. Before you call, please have this Operator’s
Manual and the serial number from your Grain-Vac ready.

6.1 MOBILE TRANSFER UNIT

PROBLEM CAUSE SOLUTION

Slow pickup of grain

Power source
Air Leaks

Defective blower

Defective airlock

Improper setting of air-slide

Check tractor or motor RPM
Tighten all vacuum connections. Be

sure seals are in good condition.
Tighten receiver cyclone to base.

Check seal on pre-cleaner bottom
door. Close and secure.

Inspection door must be closed and
sealed.

Check vacuum relief valve. Replace if
defective. Clear obstruction.

Check pressure relief valve. Clean
or replace as required.

Check for leaking hoses or fittings.

Check clearance between the lobes
and the case. Excessive clearance will
decrease the air flow. Consult your
dealer.

Check that tip clearance is 0.006
inches. Adjust or replace tips as
required.

Reset air-slide.

7614F Grain-Vac Operator’s Manual 34-100853-6 57

6.1 MOBILE TRANSFER UNIT (cont’d)

PROBLEM CAUSE SOLUTION

Slow discharge of grain.

Pulsation.

Blower overheating.

Product damage.

Power source

Defective blower.

Defective airlock.

Not enough air flow.

Too many bends.

Not enough air flow.

High or low oil level.

Liners worn out.

Poor connections.
Lines wearing.

Excessive RPM speed.

Check tractor or motor RPM
Tighten all pressure connections.

Be sure seals are in good condition.
Check pressure relief valve. Clean

or replace as required.

Check clearance between lobes
and case. Excessive clearance will
decrease air flow. Consult your
dealer.

Check that tip clearance is 0.006
inches. Adjust or replace tips as
required.

Check for leaking hoses or fittings.

Open air slide on nozzle to provide
more air.

Increase blower speed.
Straighten out intake line.

Open air slide on nozzle to provide
more air.

Add or remove oil as required.

Replace wear liners in discharge
cyclone.

Tighten and seal all connections.
Eliminate elbows. Keep lines as

straight as possible and provide a
large radius for bends.

Decrease air flow by slowing blower.
Increase grain quantity by closing
air slide.

7614F Grain-Vac Operator’s Manual 34-100853-6 58

6.1 TROUBLESHOOTING MOBILE TRANSFER UNIT (CONT’D)

PROBLEM CAUSE SOLUTION

Hydraulics overheating Low oil level.

Poor oil quality.

Defective hose or tube.

Airlock too tight.

Check oil level in tractor and Grain­Vac. Add as required.

Replace with oil of required
specifications.

Check hoses, lines and couplers.
Repair or replace as required.

Adjust airlock tips.

6.2 PTO SHAFT

PROBLEM CAUSE SOLUTION

Shear pin failure.

Blower doesn't turn freely.

PTO engaged too quickly.

Determine and correct the cause of
hard turning. Blower must turn freely.

NOTE:
Some oil seeds create buildup inside
the blower as well as the muffler.
Wash and rinse with water.

Replace shear pin with genuine
Walinga parts. For pin size contact
the Walinga Engineering Dept.
a. 2 shear pins
b. 1 shear pin

Engage the PTO slowly. (See tractor
Operator's Manual)

7614F Grain-Vac Operator’s Manual 34-100853-6 59

6.3 AIRLOCK

PROBLEM CAUSE SOLUTION

Noisy Airlock Tips hitting case. Readjust tips where applicable.

Airlock stalls

Air loss through airlock.

Breaking rotor blades.

Airlock jammed.

Insufficient oil flow.

Airlock operated in reverse
too long.

Blades too tight.

Faulty airlock motor.

Faulty pressure relief valve

Tip clearance too large.

Airlock running in reverse.

Reverse airlock direction to clear.
Disconnect hydraulic hoses.

Remove obstruction from airlock by
opening inspection door or discharge
elbow.

Check couplings or lines.
Defective tractor hydraulics.

Repair tractor.
Rotor damaged. Repair or replace

rotor.
Loosen bolts. Refer to airlock

maintenance. (section 5.2)
Replace motor.

Replace pressure relief valve or adjust
if necessary. (if so equipped)

Adjust tips to decrease clearance
to 0.006 inches.

Set for forward rotation. Repair or
replace blades.

7614F Grain-Vac Operator’s Manual 34-100853-6 60

6.4 BLOWER

PROBLEM CAUSE SOLUTION

Low air volume.

Overheating.

Engine overloading.

Slow speed.

Piping blocked.

Excessive pressure rise.

Worn components.

Inadequate lubrication.

Excessive lubrication.
Excessive pressure rise.

Coupling misalignment.

Speed too high.

Pressure too high.

Impellers rubbing.

Check blower speed with tachometer.
Increase speed.

Check for slipping belts. Adjust the
belt tension as required.

Check inlet and outlet piping.
Remove obstruction.

Check relief valves. Clean, repair or
replace as required.

Check inlet vacuum and discharge
pressure and compare with
recommended conditions. Determine
the cause before continuing.

Check the clearance and replace
the defective components. Refer to the
Blower Manual.

Check oil level in reservoirs. Add oil
as required.

Check oil level. Correct as required.
Adjust operating conditions to reduce

pressure rise to below 10 psi.
Check and realign.

Check and decrease the speed to the
recommended RPM.

Adjust operating conditions to set
pressure rise to below 10 psi. Add
more air.

Consult your nearest dealer.

7614F Grain-Vac Operator’s Manual 34-100853-6 61

6.5 V-BELT DRIVE

PROBLEM CAUSE SOLUTION

Loss in drive speed.

Belts slipping.
Localized belt wear.

Unequal stretch on belts.

Belts overloaded.

Belt separation.

Envelope seams opening.

Abnormal envelope wear.

Belt softening or swelling.

Belt hardening or cracking.

Tighten belts as required.
Check cross-section dimension.
a. If narrow - pulley spinning.

b. If swollen - belt failing internally.
Defective belts. Replace with

matched set.
Belts failed or worn out. Replace belts

with matched set.
Belts too tight. Replace belts and set

correctly.

Check for oil or rubber solvent.
Eliminate contamination and replace
belts.

Check for worn sheave, misalignment
or slip. Replace defective parts, adjust
properly and replace belt.

Eliminate oil or rubber solvent.
Replace belt.

Eliminate heat or chemical
contamination. Replace belt.

7614F Grain-Vac Operator’s Manual 34-100853-6 62

7. MECHANICAL SPECIFICATIONS*

7.1 MECHANICAL

Table 6 Mechanical Specifications

Hose

Length

7614F

*Capacities based on using Walinga suction lines and truck loading kit. Capacity will vary with condition
of product.
Due to continuous product development, specifications are subject to change without notice.

8’-0”

42’-0”

Capacity* Bu/Hr (Tonnes/Hr)

HP

Corn Wheat

4500 3700

120 1000 rpm 7 in

3900 3200

PTO

Speed

Line
Size

Discharge

Height

13ft - 5in

*SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

7614F Grain-Vac Operator’s Manual 34-100853-6 63

7.2 BOLT TORQUE

CHECKING BOLT TORQUE

The tables shown below give correct torque values for various bolts and cap screws. Tighten all bolts
to the torques specified on chart unless otherwise noted. Check tightness of bolts periodically, using
bolt torque chart as a guide. Replace hardware with the same strength bolt.

Table 7 Imperial Torque Specifications

Bolt

Diameter

“A”

1/4”

5/16”

3/8”

7/16”

1/2’”

9/16”

5/8”
3/4”
7/8”

Table 8 Metric Torque Specifications

* Torque value for bolts and cap screws are identified by their head markings.

1”

Bolt

Diameter

“A”

M3
M4
M5
M6

M8
M10
M12
M14
M16
M20
M24
M30
M36

Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless
otherwise specified. Therefore, do not grease or oil bolts or cap screws unless otherwise specified in
this manual. When using locking elements, increase torque values by 5%.

128
225
230
345

1495
2600

SAE 2

(N.m) (lb-ft)

8
13
27
41
61
95

(N.m) (lb-ft)

.5

3

6
10
25
50
90

140
225
435
750

6
10
20
30
45
60
95

165
170
225

Bolt Torque *

8.8

2.2

103

166

321

553
1103
1917

Bolt Torque *

(N.m) (lb-ft)

12
25
45

72
110
155
215
390
570
850

(N.m) (lb-ft)

.4

4

7
18
37
66

1050
2100
3675

SAE 5

1.8

4.5
9

15
35

70
125
200
310
610

115
160
290
420
630

10.9

9
19
33
53
80

1.3

3.3
7

11
26
52

92
148
229
450
774

1550
2710

SAE 8

(N.m) (lb-ft)

17
36

63
100
155
220
305
540
880

1320

12
27
45

75
115
165
220
400
650
970

7614F Grain-Vac Operator’s Manual 34-100853-6 64

8 GRAIN-VAC PARTS LIST ADDENDUM

This section contains a Parts List and Exploded views for the 7614F Grain-Vac

7614F Parts List …………………………………………………………………… page 66

7614F Exploded View ............................................................................................... page 67

7614F Grain-Vac Operator’s Manual 34-100853-6 65

7614F GRAIN-VAC PARTS LIST (See fig. 8.1 )

ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION

1 11-03632-6 Jack Topwind Plated IW5000-13TWPM 30 11-98242-5 Muffler Installation

2 11-08550-6 V-Belt, 5VX950 31 11-98244-5 Double Boom Saddle

3 11-16687-6 Tire/Rim Assembly P205/70R15, White Rim 32 11-98246-6 Cylinder Hydraulic 2" X 8"

4 11-16714-6 Sheave, 7.1" X 5-5v X SF 33 11-98253-4 Lower Boom ,SUP,Blow MTG

5 11-16720-6 Sheave, 21.2" X 5-5v X F 34 11-98261-4 Hose Carrier End,Curbside

6 11-17602-6 Bushing, F X 1-3/4" X 3/8"Keyway 35 11-98262-4 Hose Carrier End,Driverside

7 11-36336-4 Pump Bracket, Self Contained Hydraulics 36 11-98264-4 Liner, Receiver

8 11-67390-6 Document Holder - Plastic 37 11-98320-4 Round,Crs,1"Diameter x 8-5/8" Long,5/16" Holes

9 11-69555-5 Blower Inlet Installation-6614/7614-2010 38 11-98338-4 Cyclone Liner

10 11-76429-4 Bearing Support Plate, 6614 / 7614, 2011 39 11-98348-4 Blower Shaft Cover

11 11-77438-6 Bushing, SF X 1-1/2 X 3/8 Kw 40 11-98466-5 Elbow, 8x90d, 17X2X12CLR, 11GA, CS

12 11-82219-6 Hump Hose, Rubber, 8" 41 11-98695-4 Drive Shaft Guard

13 11-93156-5 Airlock Outlet 42 11-99112-4 Lower Boom Cover

14 11-93971-5 Belt Cover Assembly,Bolt,2014 43 28-05671-5 Lynch Pin With Chain (10 Links)

15 11-94953-4 Shaft,1-1/2,1-3/8 21t Spline,13.369g 44 28-16829-6 T-Bolt Clamp, 8-1/2",C410c-75-850-S

16 11-94964-4 Belt Cover Bolt-Down,Vibration Mount 45 38-08523-6 Compression Coupling, 6", 3 Bolt,Black

17 11-95668-5 Lower Production 46 38-28480-5 DP-7 Plug With Chain

18 11-95675-5 MSS/Pump Assembly,16lg,Plp 20-8 47 38-95786-6 Compression Coupling 7", 2 Bolt, Black

19 11-95699-6 Receiver Gasket,1618,2014 48 39-73882-6 Vacuum Relief Valve 3", 16 Hg

20 11-95757-5 Airlock Installation, 1618-6 W/8" WR Motor 49 50-69733-5 Blower, 614, Chrome, 2.25"

21 11-95774-5 Lower Boom Assembly 50 58-18414-6 Cap,2"NPT

22 11-95780-5 Lower Boom Elbow 51 59-96398-6 Hydraulic Control, Series Valve, SD5, 2 Bank

23 11-95783-5 Airlock Inlet Elbow 52 62-98319-6 Motor,Hydraulic,BMRS – 125H4C1Y5

24 11-95803-5 Upper Boom Assembly 53 73-82074-6 Connection Hose 6" Diameter - 10 Long

25 11-95804-5 Mid Boom Assembly 54 96-03623-6 Bearing, PB, 1-3/4", HCP209-28

26 11-95805-5 Receiver Bottom, Assembly 55 96-04567-6 Bearing, 4-Bolt, 1-1/2", SF 1 ½”

27 11-95850-5 Receiver Top, Assembly 56 96-08491-6 U-Cup Seal - 6"

28 11-95981-5 Flange Reinforce Assembly,7614HD 2011 57 96-09117-6 Gasket, Blower Mount, 614

29 11-98241-5 Oil Tank,7" Diameter X 30" Long

58 97-80192-6 Key, 3/8 X 3/8 X 1-3/4" Long

Fig. 8.1 7614 Grain-Vac Exploded View

7614F Grain-Vac Operator’s Manual 34-100853-6 67

Operator’s & Parts Manual

For 7614F

CORPORATE HEAD OFFICE:
5656 Highway 6N
RR#5, Guelph, Ontario,N1H 6J2
PHONE: [phone] FAX: [phone]
www.walinga.com

AGRI-VAC MANUFACTURING FACILITY:

938 Glengarry Cres., Fergus, Ontario Canada N1M 2W7
Tel: [phone] Fax: [phone]

DISTRIBUTION AND SERVICE CENTRES:

5656 Highway 6N, Guelph, Ontario Canada,N1H 6J2
Tel: [phone] FAX: [phone]

1190 Electric Ave. Wayland , MI.USA 49348
Tel: [phone] Fax: [phone]

rd

70 3

Ave. N.E. Box 1790 Carman, Manitoba Canada R0G 0J0

Tel: [phone] Fax: [phone]

24 Molloy Street, Toowoomba, Queensland Australia 4350
Tel: [phone] [e-mail]

PRINTED IN CANADA
ISSUE DATE: November,2014

7614F Grain-Vac Operator’s Manual 34-100853-6 v1.2 1262018