EZG Mud Hog MH20 User manual

MH20 20ft³(0.56m³)
Mud Hog®
Mixing Station
Owner’s Manual
EZG MANUFACTURING
1-800-417-9272
Mud Hog®
EZG Manufacturing
405 Watertown Road
Waterford, Ohio 45786
[phone] or 1-800-417-9272
Fax [phone] www.ezgmfg.com
Before using this Mud Hog®, study
and understand the entire Owner’s
Manual.
Serial Number _____________

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INTRODUCTION.................................................................................................................................3
ABOUT THIS MANUAL.......................................................................................................................3
GENERAL INFORMATION..................................................................................................................3
SAFETY INFORMATION.....................................................................................................................3
SAFETY PRECAUTIONS..................................................................................................................4-5
CALIFORNIA PROPOSITION 65 WARNING......................................................................................6
SETUP INSTRUCTIONS.....................................................................................................................6
OPERATING INSTRUCTIONS............................................................................................................7
OBTAINING SPARE PARTS................................................................................................................7
CLEANUP............................................................................................................................................8
DAILY MAINTENANCE.......................................................................................................................8
SERVICE RECORDS..........................................................................................................................9
WARNING LABELS AND LOCATIONS.............................................................................................10
FRAME ASSEMBLY...........................................................................................................................11
DRUM ASSEMBLY.............................................................................................................................12
SHAFT ASSEMBLY............................................................................................................................13
HYDRAULIC ASSEMBLY...................................................................................................................14
DRIVE ASSEMBLY.............................................................................................................................15
SEAL KIT.............................................................................................................................................16
BUCHER VALVE AND CONTROL HANDLE OPTIONS.....................................................................17
GRATE OPTIONS...............................................................................................................................18
GREASE FITTING LOCATION...........................................................................................................19
NOTES................................................................................................................................................20
WARRANTY.........................................................................................................................................21
WARRANTY REGISTRATION............................................................................................................22
TABLE OF CONTENTS

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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.
DANGER This signal word is used to identify a hazard which, if not avoided, will result in
death or serious injury.
WARNING This signal word is used to identify a hazard which, if not avoided, could result in
death or serious injury.
CAUTION This signal word is used to identify a hazard which, if not avoided, could result in
minor or moderate injury.
NOTICE
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.
INTRODUCTION
Congratulations on purchasing one of the nest pieces of masonry equipment on the market today!
If this is your rst EZG Manufacturing product, you will not be disappointed. If you have previously
owned an EZG Manufacturing product, you will nd the same high quality and dependability that you
have come to expect from EZG Manufacturing.
The purpose of this manual is to inform the owner/employer/and the operator, how to safely operate
this piece of equipment, and make them aware of any hazards. It also contains important information
regarding assembly, set up, operation, and maintenance. It is the Owner/Employer’s responsibility
to make sure that 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.
Illustrations in this manual may show details or components that may not be the same as your
machine. Continuing improvements to the design of this machine may have caused changes that are
not included in this manual. The information in this document is subject to change without notice.
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.
ABOUT THIS MANUAL
GENERAL INFORMATION
SAFETY INFORMATION

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WARNING
Failure to obey the following safety instructions could result in DEATH or
SERIOUS INJURY.
Read and understand entire manual before operating the Mud Hog®
For your safety and the safety of others, replace any missing or damaged warning decals by contacting
the manufacturer at 1-800-417-9272.
Make sure anyone operating the Mud Hog® is thoroughly familiar with its operation. Keep all
unauthorized and untrained personnel, especially children, away from Mud Hog®.
Never operate machine with safety grate, guards or safety devices removed or open. Do not alter any
safety guards.
Stay clear of mixing paddles while machine is running. Keep all body parts, clothing, jewelry, and solid
objects away from all moving parts.
Never perform any work on the Mud Hog® while it is running. Before working on or cleaning the Mud
Hog®, shut o󰀨 engine and disconnect spark plug wire.
Never operate the Mud Hog® under the inuence of alcohol, drugs, or medications.
This Mud Hog® has been designed and built as a material mixing station, and should not be used for
anything other than its intended purpose.
Consult forklift manufacturers specications to insure load capacity is not exceeded.
Never stand under an elevated Mud Hog®.
Stay clear of moving parts while machine is in operation.
When towing, refer to vehicle manufacturers specs to ensure load capacity is not exceeded.
Always check axle, tires, and safety chains before towing Mud Hog®.
Always cross and connect safety chains before towing Mud Hog®.
Never attempt to ride the Mud Hog®.
Model Empty Weight Max Gross Weight
MH20 2295 lbs. (1040 kg) 5294 lbs. (2401 kg)
Do not exceed Maximum Gross Weight
SAFETY PRECAUTIONS

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Operate only in properly vented environments. The mixer requires a free ow of air and emits carbon
monoxide gas.
Avoid breathing dust produced while using the Mud Hog®. Dust may contain crystalline silica and may
cause serious health problems.
Do not operate near combustible materials.
Do not smoke around Mud Hog®.
Always know the location of nearest re extinguishers, rst aid kit, and emergency personnel phone
numbers in case of emergency.
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 a Mud Hog®.
Do not use the Mud Hog® as a lifting device or with accessories or attachments not recommended by
EZG Manufacturing, as damage to equipment or operator might result.
Avoid contact with hot hydraulic uid.
Allow system to cool before performing any repairs or service, such as adding fuel or oil.
Use only factory authorized parts.
Used Lubricants such as engine and hydraulic oil, and hazardous waste must be taken to an
authorized disposal or recycling center.
Consult Honda® owner’s manual for engine maintenance and warnings.
SAFETY PRECAUTIONS
WARNINGS (continued)
CAUTION
Failure to obey the following safety instructions could result in MINOR or
MODERATE INJURY.
NOTICE

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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 lter out
microscopic particles.
Before operating the Mud Hog® it should be properly set up on the jobsite. The MH20 Mud Hog® weighs
2295 lbs. (1040 kg) empty and 5295 lbs. (2401 kg) full. Check forklift ratings before attempting to move
the Mud Hog®. The Mud Hog® is equipped with fork pockets on all sides and can be lifted from any side.
1. Raise Mud Hog® with fork lift.
2. Fully extend the outriggers by removing the hitch pins, extend the outriggers, and reinsert hitch pins.
Each outrigger has a 5/8” (1.6cm) hitch pin and a 1/4” (.6cm) linch pin as the keeper. Make sure the
linch pin is locked into position.
3. While raised, set the Mud Hog® to the desired height by adjusting the mixer feet. Each mixer foot
allows for 1” (25.4mm) adjustment, has a 3/4” (1.9cm) hitch pin, and a hair pin as the keeper. Make
sure each pin is locked into position. In the full down position, the Mud Hog® can dump into most mortar
pans. Level the Mud Hog® as close as possible.
4. Verify that all mixer feet are touching the ground and that the Mud Hog® is level and cannot rock in
any direction. If one of the mixer feet is not touching and cannot be adjusted to touch the ground, shim
under that foot with a board to create solid footing.
5. Perform the daily maintenance as described in the “Daily Maintenance” section of this manual.
6. Check all hydraulic operations using both levers on the hydraulic control valves and the auxiliary valve
handles.
SETUP INSTRUCTIONS
WARNING
Do not operate the Mud Hog® without the outriggers fully extended to provide a
stable base.

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1. Slide forks under the Mud Hog® and place in desired location.
2. Fully extend outriggers, set and level Mud Hog® securely on ground.
See Setup Instructions for proper procedure
OPERATING INSTRUCTIONS
WARNING
This equipment is to be operated by trained and qualied personnel over
the age of 18. Death or serious injury can result.
3. Remove pins and adjust legs to desired height and reinsert pins.
See Setup Instructions for proper procedure
WARNING
Outriggers MUST be in the fully extended position before operating.
WARNING
NEVER put your hands inside mixer drum while equipment is running.
Death or serious injury can result.
4. Start engine.
See engine manuals for proper procedure.
5. Fill with material, add water, and mix to desired consistency and dump.
NOTE: In the unlikely event that the mixing paddles plug, momentarily reverse the paddles.
OBTAINING SPARE PARTS
Spare parts for your Mud Hog® may be obtained by the following procedure:
1. Record the information from the serial number tag located on the frame near the hydraulic reservoir.
2. Using the parts reference table in this manual, record the part number or component.
3. Contact your local Mud Hog® dealer or EZG Manufacturing at 1-800-417-9272 with the information
recorded.

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1. Turn o󰀨 engine and disconnect spark plug wire.
2. For maximum performance, thoroughly clean inside and out at mid-day or lunch break and again at
the end of each day’s use. Do not allow a buildup of materials to form on the blades and seals.
3. Hose out and brush down mixing drum, then spray and brush paddles until all excess material is removed.
4. Grease the ttings and brush the face of drum seals until clean.
1. Check engine oil daily
2. For engine maintenance, refer to the engine manufacturer’s manual furnished with the Mud Hog®.
3. Check and grease all grease ttings.
See Grease Fitting Location drawing in the manual for grease tting locations.
4. Check hydraulic oil. Add as needed. Change bi-yearly or if contaminated. Change hydraulic lter
monthly. Use only recommended premium grade ISO68 Heavy Duty hydraulic oil or equivalent. Do
not use contaminated uid. (Premium grade ISO32 oil may be used in colder climates.)
5. For maximum performance, thoroughly clean inside and out at mid-day or at lunch break and again at
the end of each day’s use. Do not allow a buildup of material to form on the blades and seals.
6 Check all hydraulic hoses and equipment for leaks. Fix any leaks before operating the Mud Hog®.
7 Check all welds and bolts. If a cracked weld is found, do not operate the Mud Hog® until repaired by
qualied personnel. Tighten any loose bolts.
8 Check Paddle Shaft Seal for excessive wear. If any mortar or concrete is leaking past the seal, change
seals immediately.
9 Check paddle rubbers for wear. Adjust or replace as needed.
CLEANUP
DAILY MAINTENANCE
WARNING
Before performing any described maintenance items, make sure engine is turned
o and spark plug wire is disconnected. Death or serious injury can result.

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SERVICE PERFORMED DATE INITIALS
SERVICE RECORDS

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2(both sides)
2
(both sides)
(both sides of drum)
3
4
5
6
2
1
2
8
9
13
11
11 2
314
15
16
17
7
10
12
18
19
20
21
22
(both legs)
WARNING LABELS AND LOCATIONS
ITEM PART NUMBER DESCRIPTION QUANTITY
A 16-209 LABEL KIT 1
1Crush Hazard Decal 2
2 Small Pinch Point Decal 8
3 U.S. Patents Decal 2
4 Grease Seals Daily Decal 2
5 California Public Resources Decal 1
6 U.S. Flag Decal 1
7Never Open Grate Decal 1
8Do Not Remove Decal 1
9 Fill with 1.1 Quart Decal 1
10 Read Owners Manual Decal 1
11 Hot Surface Decal 2
12 Check Hydraulic Oil Level Decal 1
13 Fill with 25 Gallons Decal 1
14 Push to Lower/Pull to Dump Decal 1
15 Push for Forward/Pull Reverse Decal 1
16 Push for Reverse/Pull Forward Decal 1
17 Push to Dump/Pull to Lower Decal 1
18 Proposition 65 Decal 1
19 E-STOP 1
20 Fully Extend Legs Decal 2
21 Close Fuel Valve Decal 1
22 Mud Hog Decal 1

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FRAME ASSEMBLY

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DRUM ASSEMBLY

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SHAFT ASSEMBLY

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HYDRAULIC ASSEMBLY

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DRIVE ASSEMBLY

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SEAL KIT

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v
BUCHER VALVE AND CONTROL HANDLE OPTIONS

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GRATE OPTIONS

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GREASE FITTING LOCATION

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NOTES