EZG HOG PUMP HP-20T4 User manual

OWNER’S MANUAL
MODEL HP-20T4 HOG PUMP®
Serial Number
Before using this Hog Pump®,
study and understand the entire
Owner’s Manual.
EZG Manufacturing
405 Watertown Road
Waterford, Ohio 45786
[phone] or 1-800-417-9272
Fax [phone] www.ezgmfg.com

Introduction ................................................................................................................................................................3
General Information ..................................................................................................................................................4
About This Manual .....................................................................................................................................................4
Safety Information ......................................................................................................................................................4
Safety Precautions......... ............................................................................................................................................5
Emergency Stops.............. .........................................................................................................................................7
Warning Labels and Locations ...................................................................................................................................8
Machine Controls........................ ...............................................................................................................................9
DM430 Digital Display..... ...........................................................................................................................................9
Remote Control..........................................................................................................................................................12
Set-up.......................................................................................................................................................................13
Pre-Start Checklist ...................................................................................................................................................14
Operation Warnings..................................................................................................................................................15
Start-up.... ................................................................................................................................................................ 15
Operation .................................................................................................................................................................17
E-Stop or Fault Reset .............................................................................................................................................13
Shut-down Procedure................ .............................................................................................................................19
Daily and Pre-start Checks.............................................................................................................................20
Maintenance
Cleaning Procedures ...............................................................................................................................................18
Engine Fuel Filter Change..............................................................................................................................20
Lubrication .....................................................................................................................................................22
Electrical Schematic.................................................................................................................................................27
Limited Warranty .....................................................................................................................................................28
Revision Number-001 4/30/21-Present
2EZG Manufacturing 1-1-800-417-9272 www.ezgmfg.com
Hydraulic Fluid Change..................................................................................................................................22
Hydraulic Fluid................................................................................................................................................19
Piston Cup & Seal..........................................................................................................................................23
Service Intervals ............................................................................................................................................22
INTRODUCTION

The Model HP-20T4 Hog Pump® is a self-contained, portable, robust machine built to deliver grout, mortar, or concrete
on the job site. The system is ruggedly mounted on a sturdy frame complete with a hitch, a drop leg jack, outrigger legs,
safety chains, wheels, brakes, and protected rear lighting. The unit is equipped with a front-mounted tool box for storage
of clamps, clean out fittings, and a protective case for the remote control unit.
A 62HP Tier 4 emission Kubota diesel engine powers the hydraulic pump, driving twin hydraulic cylinders for outstanding
pumping capabilities. The HP-20T4 Hog Pump® is capable of unloading 18 cubic yards of material an hour when using a
2-in. diameter line. The fully reversible S-Tube system operates automatically, but can be manually controlled for clearing
clogs, simplifying cleanup. The HP-20T4 Hog Pump® handles up to 3/4-in. diameter aggregate, including pea gravel,
and is ideal for filling block walls. The hopper can pivot 90 degrees to facilitate quick and efficient cleanup.
The system is controlled and monitored by a Plus+1 micro controller system and includes a digital display for operating
conditions and system troubleshooting. A wireless remote control supports one-person operation and the ability to control
other units. The well-designed operator control panel includes system gauges, a material flow joystick , engine key start,
and engine throttle adjustment controls. Three emergency E-Stop buttons (one on each side of the hydraulic oil tank and
one on the control panel) are provided for quick machine shut down. In addition to the E-Stops, the hopper grate has an
safety switch that shuts the machine down when the grate is lifted. The shutdown event must be acknowledged by using
the digital display or remote before machine operation can be resumed.
Before operating the HP-20T4 Hog Pump®, carefully read and understand the information contained in this manual. The
manual provides basic guidelines for operator safety, proper operation, and maintenance of the HP-20T4 Hog Pump®.
To prevent injury or death, conduct routine maintenance on the HP-20T4 Hog Pump®, do not operate outside
of recommended use, and always be aware of the surroundings. Store this manual in the toolbox for easy referencing for
operating, cleaning, and maintenance procedures.
A data plate is provided on the operator display side, lower frame of the machine. It is engraved with the unit
serial number, the company website (www.ezgmfg.com), and the company toll-free telephone number
(1-800-417-9272).
INTRODUCTION
EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Revision Number-001 4/30/21-Present
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INTRODUCTION

This symbol, either used alone or with a signal word, is used to call your attention
to instructions involving your safety and/or the safety of others. Failure to follow
these instructions will likely result in personal injury or death.
This signal word is used to identify a hazard which, if not avoided, will result in
death or serious injury.
This signal word is used to identify a hazard which, if not avoided, could result in
death or serious injury.
This signal word is used to identify a hazard which, if not avoided, could result in
minor or moderate injury.
This signal word is used to identify a hazard which, if not avoided, could result in
property or equipment damage. It also may be used for special instructions
related to performance, maintenance or general items.
Illustrations throughout this manual are representative and may show details or components that may not be
the same as your machine. Continuing machine design improvements may cause changes not included in this
manual. The information in this document is subject to change without any prior notice.
This manual is provided with the HP-20T4 Hog Pump® to inform the equipment owner/operator how to safely
operate the machine and become aware of hazards. It also contains important information regarding set up,
operation, maintenance, and repair procedures. It is the responsibility of the equipment owner/operator to make
sure anyone who operates this machine understands all safety warnings. If you do not understand any items in
this manual, please contact the dealer where this product was purchased or the manufacturer at the number listed
throughout this manual. If you have any suggestions about how to make this manual easier to understand, contact
the manufacturer. Keep this manual available for reference wherever this piece of equipment is being used and
make it available to any operators.
The following safety symbols and signal words will be used throughout this manual and on the product, for your
safety and the safety of others, please become familiar with their meaning and heed their warnings.
To prevent serious injury or death, thoroughly read and understand all aspects of this manual. Ensure safety
practices discussed in this chapter are put into practice when operating the HP-20T4 Hog Pump®. This chapter
is NOT all-inclusive. It is the responsibility of each operator to abide by all other safety precautions implemented
by the company, owner of the equipment, and state and federal government.
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GENERAL INFORMATION
DANGER
WARNING
CAUTION
NOTICE
SAFETY INFORMATION
ABOUT THIS MANUAL

Required Personal Protective Equipment (PPE)
The use of PPE is critical to safe operation and well-being of the operator. The following PPE and
information (this list is not all-inclusive) should be used in the safe operation of the HP-20T4 Hog Pump®:
• Jewelry removed (especially necklaces and rings)
• Long hair tied back
• Close-fitting work clothes that do not hinder movement
• Safety glasses with side shields, or goggles
• Hearing protection
• Safety-toed footwear
• Occupational Safety and Health Administration (OSHA)-approved hard hats
• National Institute for Occupational Safety and Health (NIOSH)-approved ventilation masks when dust is
present
• Protective gloves
• Rubber boots and rubber gloves when performing clean out procedures
General
•Make sure anyone operating the HP-20T4 Hog Pump® is thoroughly familiar and understand its operation.
Keep all unauthorized and untrained personnel, especially children, away from the machine.
•For your safety and the safety of others, replace any missing or damaged warning decals by contacting the
manufacturer at 1-800-417-9272.
•Never operate machine with the safety grate, guards, or safety devices removed or open. Do not alter any
safety guards.
•Be sure any clothing you wear does not have strings, fringes, or other external tightening means that could
be caught in moving parts.
•Keep all body parts, clothing, jewelry, and solid objects away from all moving parts.
•Never perform any work on the machine while it is running. Before working on or cleaning the unit, turn the
ignition key off and disconnect the negative battery cable.
•Never operate the machine when under the influence of alcohol, drugs, or medications.
•Do not use the HP-20T4 Hog Pump® for anything other than its designed purpose of pumping mortar, grout,
concrete, or small diameter (up to 3/4-in.) media (pea gravel).
•Mixes with crushed aggregate are not recommended and may cause material separation.
•Stay clear of moving parts while the machine is in operation.
•Operate machine only in a properly vented environment.
•Wear a mask and avoid breathing dust produced while using the machine. Dust may contain crystalline silica
and may cause serious health problems.
•Always know the location of nearest fire extinguishers, first aid kit, and phone with first-responder contact
numbers in case of emergency.
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SAFETY PRECAUTIONS

Towing
• Ensure the outrigger legs are pinned and locked in the stowage position before traveling. If the locking device
is damaged or worn, it should be repaired immediately and the unit must not be driven until the outrigger legs
can be positively locked.
• The Hog Pump® is supplied with a 2-5/16" ball hitch connection. Verify correct hitch before connecting to the
Hog Pump®
• Safety chains must be used with Hog Pump® when unit is in tow.
• Insure tow vehicle and hitch have a rated GCWR, GTW, and tongue weight capacity to handle Hog Pump®
• Alway chock wheels of Hog Pump® when not coupled to a tow vehicle.
Model Empty Weight Tongue Weight
HP-20T4 3,880 lbs. (1760 kg) 345 lbs. (156.5 kg)
Hydraulic System
• The hydraulic system is under pressure and oil may be hot.
• Always allow the machine to cool completely before performing service.
• Always relieve pressure in the hydraulic system before performing service.
• Always use appropriate safety equipment and clothing to protect exposed skin and eyes from high pressure
oil.
• Tighten all connections to proper specifications before applying pressure.
• Never use bare hands to check for leaks. Oil under pressure can penetrate the skin, and can cause
gangrene within a few hours if not properly removed. Use a piece of cardboard to check for leaks.
•Inspect all hoses and fittings for signs of damage, wear scrapes, kinks, or cracking. Replace hoses is any of
these conditions are found. It is recommended to replace all hydraulic hoses every 5 years.
Electrical System
• Always disconnect the negative (-) before servicing, removing, or installing electrical components.
• Always disconnect the negative terminal first and positive terminal last. Connect positive
terminal first and negative terminal last. Use care when dealing with live circuits to prevent
arcing. Arcing may result in death or serious injury.
• Use care to prevent arcing when working on live circuits or components. Arcing can cause component
damage and may ignite flammable materials.
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Model Tire Size Tire Pressure
HP-20T4 ST225/75R15 65 psi (245 kPa)
SAFETY PRECAUTIONS

• Before operation, inspect all hoses, fasteners, bolts, and welds for nicks, cracks, cuts, damage, wear, or
looseness before each use. Repair as needed.
• Always wear approved PPE, including glasses, hearing protection, hard hats, and ventilation masks when
operating the machine.
• Avoid contact with hot hydraulic oil.
• Allow system to cool before performing any repairs or service, such as adding fuel, oil, or coolant.
• Use only factory authorized parts.
• Used lubricants such as engine oil, hydraulic oil, and hazardous waste must be taken to an authorized
disposal or recycling center.
• The HP-20 Hog Pump must be stable before operating the machine. Level the machine if placed on a slope
or uneven terrain. Failure to comply may result in personal injury or equipment damage.
California - Proposition 65 Warning
Engine exhaust and some of its constituents, and some dust created by power sanding,
sawing, grinding, drilling, and other construction activities contains chemicals known to the
State of California to cause cancer, birth defects and other reproductive harm. Some examples of these
chemicals are:
Lead from lead based paints - Crystalline silica from bricks -Cement and other masonry products -Arsenic and
chromium from chemically treated lumber
Your risk from these exposures varies, depending on how often you do this type of work. To
reduce your exposure to these chemicals: ALWAYS work in a well ventilated area, and work
with approved safety equipment, such as dust masks that are specially designed to filter out microscopic
particles.
EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Revision Number-001 4/30/21-Present 7
1. Machine Control Panel - Turns of diesel engine (manual reset)
2. Left Rear E-stop - Halts pumping only (manual reset) (must be reset on remote if using remote option)
3. Right Rear E-stop - Halts pumping only (manual reset) (must be reset on remote if using remote option)
4. Remote (Optional) (Not Shown) - Halts pumping only (must be manually reset from remote display)
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2
SAFETY PRECAUTIONS
EMERGENCY STOPS
Figure 2

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WARNING LABELS AND LOCATIONS
Figure 3

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Machine Control Features
1. DM430 Digital Display - Display engine and pump info (see next section)
2. MVP Engine Display - Displays diesel engine status (see 7-12 below)
3. Emergency Stop - E-stop for diesel engine and pump.
4. Material Flow Joystick - Forward-Neutral-Reverse of pump
5. Engine Throttle Control - Press up (RABBIT) to increase or down
(TURTLE) to decrease diesel engine speed
6. Ignition Switch/Key - Used to start diesel engine
7. Engine Temperature - Displays temperature of diesel engine coolant
8. Engine RPM - Displays diesel engine speed
9. Heater - Illuminates when engine intake heater is active
10. Engine Oil Pressure - Displays diesel engine oil pressure
11. Battery Voltage - Displays battery voltage
12. Engine Hour Meter - Displays diesel engine hours
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The digital display functions as the hub of communication for the HP-20T4 Hog Pump. The Controller Area
Network (CAN)-based Plus+1 programmable display works in conjunction with the micro controller and wireless
remote control. The digital display provides the operator complete control over the machine and provides useful
troubleshooting information including system diagnostics. Multiple screens provide information on alarm status,
volume of media pumped, and much more. The various screens can be viewed without starting the engine by
turning the ignition key to the ON position.
The four soft touch buttons below the display are used to select the corresponding items directly above them
(Radio Control, Pump Engage, Reset Yards, & Page). Information that appears on the display in red is a quick
visual indicator to the operator that a condition has occurred that requires operator attention and/or action.
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EZG Manufacturing 1-800-417-9272 www.ezgmfg.com Revision Number-001 4/30/21-Present 9
MACHINE CONTROLS
Figure 4
DM430 DIGITAL DISPLAY

Digital Display Homepage
1. Engine RPM Digital - Display engine RPM
2. Material Flow Scale - Displays pumping rate (0-100%) (Up is forward, down is reverse)
3. Cold Limit - Limits material flow until the hydraulics are warm
4. Page (Soft Key) - Scrolls to next page
5. Reset Yards (Soft Key) - HOLD for 5 seconds to reset yard counter
6. Pump Engage (Soft Key) - Press to engage pump.
•Pump Engage - Indicates pump engaged
•Pump Engage - Indicates pump in neutral
7. Radio Control (Soft Key) - Press to engage radio control
•Radio Control - Indicates radio control active
•Radio Control - Indicates radio control not active
8. Pump Status - Displays status of pump
•OK to Pump - Pump ready
•Pumping Disabled - Safety interlock holding pump from operation
9. Hydraulic Pressure - Displays pressure of hydraulic system
10. Pump Direction Indication - Shows direction of pump
11. E-Stop Status - Shows status of E-stops
•_(BLANK)__ - No E-stop Present
•E-STOP - 1 of 3 E-Stops on pump engaged
•Radio E-STOP - Radio E-Stop engaged
12. Yardage Counter - Displays total yards pumps since last reset
13. Radio Switch Status
•___(BLANK)___ - Indicates radio not in operation
•Radio Switch ON - Indicates radio operation
14. Pump Status
•Pump Switch OFF - Indicates material not pumping
•Pump Switch ON - Indicates material pumping
15. Grate Status
•GRATE OPEN - Grate switch interlock not made
•GRATE CLOSED - Grate switch interlock made
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DM430 DIGITAL DISPLAY
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Figure 5