Meiwa MX80 Troubleshooting guide

OPERATION/MAINTENANCE
AND PARTS MANUAL
MX80 / 90 / 110
VIBRATORY PLATE COMPACTORS
FEBRUARY 2. 2016

SECTION 1 -
SAFETY PRECAUTIONS AND GUIDELINES
Contents ......................................................................................................................................................................... Page
OVERVIEW ......................................................................................................................................................................... 1
PRE-START INSPECTION................................................................................................................................................. 1
OPERATING ....................................................................................................................................................................... 1
MAINTENANCE ................................................................................................................................................................. 2
OERATING PROCEDURES ..............................................................................................................................………….. 2
OVERVIEW
BEFORE YOU OPERATE, MAINTAIN OR IN ANY OTHER WAY, OPERATE THIS MACHINE:
READ and STUDY this manual. KNOW how to safely use the unit’s controls and what you must do for safe maintenance.
The machine has been built in accordance with state-of-the-art standards and the recognized safety rules. Nevertheless, its
use may constitute a risk to life and limb of the user or of third parties, or cause damage to the machine and to other material
property.
ALWAYS wear or use the proper safety items required for your personal protection.
For reasons of security, long hair must be tied back or otherwise secured, garments must be close-fitting and no jeweler –
such as rings or watches - may be worn. Injury may result from being caught up in the machinery or from rings catching on
moving parts.
If you have ANY QUESTIONS about the safe use or maintenance of this unit, ASK YOUR SUPERVISOR OR CONTACT ANY
DISTRIBUTOR. NEVER GUESS - ALWAYS CHECK.
Never make any modifications, additions or conversions which might affect safety without the supplier’s approval. This also
applies to the installation and adjustment of safety devices and valves as well as to welding work on load-bearing elements.
Observe all fire-warning and fire-fighting procedures.
PRE-START INSPECTION
INSPECT your machine. Have any malfunctioning, broken or missing parts corrected or replaced before use.
Check the machine at least once per working shift for obvious damage and defects. Report any changes (incl. changes in the
machine’s working behavior) to the competent organization/person immediately. If necessary, stop the machine immediately
and lock it.
Take the necessary precautions to ensure that the machine is used only when in a safe and reliable state.
Operate the machine only if all protective and safety oriented devices, such as removable safety devices, emergency shut-off
equipment, sound-proofing elements and exhausts, are in place and fully functional.
The electrical equipment of machines is to be inspected and checked at regular intervals. Defects such as loose connections
or scorched cables must be rectified immediately.
VERIFY that all the instruction and safety labels are in place and readable. These are as important as any other equipment on
the compactor. NEVER fill the fuel tank, with the engine running, while near an open flame, or while smoking. ALWAYS wipe
up any spilled fuel immediately.
1-1

SECTION 1 -
SAFETY PRECAUTIONS AND GUIDELINES
CHECK for WARNING tags placed on the machine. DO NOT operate the equipment until repairs have been made and the
WARNING tags have been removed by authorized personnel.
KNOW the location of the Emergency Shut-Down Control if the machine is so equipped.
OPERATING
In the event of safety-relevant modifications or changes in the behavior of the machine during operation, stop the machine
immediately and report the malfunction to the competent authority/person.
Always wear the prescribed ear protectors.
Always make sure that no person or obstruction is in your line of travel. Watch your step to avoid tripping.
USE extreme caution and be observant when working in close quarters or congested areas.
Before beginning work, familiarize yourself with the surroundings and circumstances of the site, such as obstacles in the
working
and traveling area, the soil bearing capacity and any barriers separating the construction site from public roads.
When traveling on public roads, ways and places always observe the valid traffic regulations and, if necessary, make sure
beforehand that the machine is in a condition compatible with these regulations
Always keep at a distance from the edges of building pits and slopes.
DO NOT run the engine in a closed building for an extended length of time. EXHAUST FUMES CAN KILL.
DO NOT operate the compactor on non-compactable material, such as concrete or hardened asphalt.
MAINTENANCE
Observe the adjusting, maintenance and inspection activities and intervals set out in the operating instructions, including
information on the replacement of parts and equipment. These activities must be executed by skilled personnel only.
Ensure that the maintenance area is adequately secured.
After cleaning, examine all fuel, lubricant, and hydraulic fluid lines for leaks, loose connections, chafe marks and damage. Any
defects found must be rectified without delay.
Always tighten any screwed connections that have been loosened during maintenance and repair.
1-2

SECTION 1 -
SAFETY PRECAUTIONS AND GUIDELINES
Any safety devices removed for set-up, maintenance or repair purposes must be refitted and checked immediately upon
completion of the maintenance and repair work.
Ensure that all consumables and replaced parts are disposed of safely and with minimum environmental impact.
AVOID, whenever possible, servicing, cleaning or examining the unit with the engine running.
NEVER fill the fuel tank, with the engine running, while near an open flame, or while smoking. ALWAYS wipe up any spilled
fuel immediately.
ALWAYS disconnect the spark plug before performing any work on the unit.
DO NOT alter the engine governor settings from those indicated in the engine manual.
ALWAYS replace damaged or lost decals. Refer to the Parts Manual for the proper location and part number of all decals.
Carry out welding, flame-cutting and grinding work on the machine only if this has been expressly authorized, as there may be
a risk of explosion and fire.
Before carrying out welding, flame-cutting and grinding operations, clean the machine and its surroundings from dust and
other inflammable substances and make sure that the premises are adequately ventilated (risk of explosion).
1-3

-

SECTION 2 - INTRODUCTION
EXCELLENT CHOICE! MEIWA Vibratory Plate Compactor you have chosen will give you many hours of maintenance free
operation resulting in a faster return of your investment.
Safe operation depends on reliable equipment and the use of proper operating procedures. Performing the checks and services
described in this manual will help keep your machine in good condition. These recommended operation procedures will help
you to avoid unsafe practices.
Safety notes have been included throughout this manual to help you avoid injury and prevent damage to the equipment. These
notes are not intended to cover all eventualities; it is impossible to anticipate and evaluate all possible methods of operation.
Therefore, you are the only person who can guarantee safe operation and maintenance. It is important that any procedure not
specifically recommended in this manual be thoroughly evaluated from the standpoint of safety before it is implemented.
Continuing improvement and advancement of product design may cause changes to your machine which may not be included
in this publication. Each publication is reviewed and revised, as required, to update and include these changes in later editions.
MEIWA reserves the right to modify or make changes within a specific model group without notice and without incurring any
liability to retrofit units previously shipped from the factory. Contact your MEIWA Distributor for non-routine maintenance
information that is not covered in this publication.
2-1

SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION
Contents Page
INTERNATIONAL MACHINE SYMBOLS ______________________________________________________________1
INTERNATIONAL HIGHWAY SYMBOLS ______________________________________________________________2
METRIC CONVERSIONS __________________________________________________________________________ 4
INTERNATIONAL MACHINE SYMBOLS
The following explains the meaning of international symbols that may appear on your machine
OIL PRESSURE BRAKE HOURS
WATER
TEMPERATURE
HORN NEUTRAL
ON / OFF CAUTION LOW ENGINE
RPM.
LIGHTS FUEL BRAKE-PARK
WATER SLOW VIBRATION
BATTERY FAST AMPLITUDE
AMMETE OR
VOLTMETER
TRANSMISSION FREQUENCY
AIR PRESSURE GREASE CAUTION-
PRESSURIZED
LOW AIR
PRESSURE
OIL
ENGINE RPM HYDRAULIC OIL
3-1

SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION
INTERNATIONAL HIGHWAY SYMBOLS
The following symbols may also appear in a yellow square instead of a red triangle.
Road bends Uneven road
Dangerous bend Ridge
Double bend Dip
Dangerous descent Slippery road
Steep ascent Loose gravel
Carriageway narrows No entry for power driven vehicles
Carriageway narrows No entry for vehicles exceeding
length
“end of priority” sign No entry for vehicles exceeding
length
Oncoming traffic has priority Falling rocks
Priority over oncoming traffic Pedestrian crossing
Swing bridge Road work
Road leads onto quay or river
bank Light signals
3-2

SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION
Two-way traffic “give way” sign
Other dangers Stop sign (new)
Level crossing Stop sign (old)
Level crossing “priority road” sign
No entry No entry for vehicles exceeding
weight
Closed to all vehicles in both
directions
No entry for vehicles axle weight
exceeding
Intersection, user must give way No u-turn
Intersection, user must give way No turn direction shown
Intersection, user must give way No entry for power driven vehicles
3-3

SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION
TO CONVERT
OMREGNET FRA
INTO
TIL
MULTIPLY BY
MULTIPLICERES MED
Bar Pound/sq.in 14.50
Bar Kilopascals 100.
Centigrade Fahrenheit (C° x 9/5) + 32
Centimeters Inches 0.3937
Centimeters Millimeters 10.0
Circumference Radians 6.283
Cubic centimeters cu.inches 0.06102
Degrees (angle) Radians 0.01745
Degrees/sec. Revolutions/min 0.1667
Feet Meters 0.3048
Feet/min Meters/min. 0.3048
Foot-pounds Kg-meters 0.1383
Gallons Liters 3.785
Hertz Vibrations/min. 60.
Horsepower Kilowatts 0.7457
Inches Centimeters 2.540
Inches Millimeters 25.40
Kilograms Pounds .250
Kilogram meters -Pounds 7.233
Kilopascal Pounds/sq.in 0.1450
Kilopascal Bars 0.01
Kilowatts Horsepower 1.341
Liters Gallons (U.S. liq) 0.2642
Liters Pints (U.S. liq) 2.113
Liters Quarts (U.S. liq) 1.057
Meters Feet 3.281
Meters Inches 39.37
Meters/min Feet/sec 0.05468
Miles/hr kms/hr 1.609
Millimeters Inches 0.03937
Newtons Pounds 4.448
Newton-meter Pound-feet 0.737
Pounds Kilograms 0.4536
Pounds Newtons 0.225
Pound feet Newton-meter 1.356
Pounds/ft. kgs/meter 1.488
Pounds/sq in Bars 0.06895
Pounds/sq in Kilopascals 6.895
Quarts (liq) Liters 0.9463
Radians Degrees 57.30
Radians/sec Revolutions/min 9.549
Revolutions/min Degrees/sec 6.0
Revolutions/min Radians/sec 0.1047
Temperature (°C) + 17.78 Temperature (°F) 1.8
Temperature (°F) - 32 Temperature (°C) 5/9
Tons (short) Tons (metric) 0.9078
Vibrations/min Hertz 0.0167
3-4

SECTION 4 - OPERATING INSTRUCTIONS
Contents Page
SAFETY CHECKS - PRE-STARTING _________________________________________________________ 1
INSPECTION PRIOR TO OPERATION _________________________________________________________2
OPERATION _____________________________________________________________________________ 2
STORAGE _______________________________________________________________________________ 6
Improper maintenance can be hazardous.
Read and understand SECTION 1 - SAFETY PRECAUTIONS AND GUIDELINES before you perform any maintenance,
service or repairs.
SAFETY CHECKS - PRE-STARTING
Before starting each day, in addition to the 10 hour daily routine maintenance, check or inspect the following items to ensure
trouble free performance.
1. Check fluid lines, hoses, fittings, filler openings, drain plugs, pressure cap, muffler, safety shrouds and the area underneath
the unit for signs of leakage or damage. Fix any leaks and correct any damage before operating.
2. Inspect the entire unit for damaged or missing parts and repair or replace parts as needed.
3. Check the fuel level. If necessary, fill the fuel tank with the proper fuel.
4. Check all fastening hardware to ensure it is adequately tightened and that none is missing or broken.
5. Do not operate faulty equipment.
6. Be observant of people and obstructions within the work area.
7. Read “INSTRUCTIONS FOR USE” for HONDA GX120 engine for MX80 and GX160 engine for MX90/110 models and this
instruction manual for correct use and care.
Be sure the unit is correctly maintained in good operating condition.
4-1

SECTION 4 - OPERATING INSTRUCTIONS
NSPECTION PRIOR TO OPERATION
CHECK ENGINE OIL
Before checking or refilling engine oil, be sure the compactor is located on a stable level surface.
Do not thread the gauge into oil filler to check oil level. If the oil level is below the lower level line on the dipstick, refill with the
proper oil to the upper level (to the neck of oil filler). See section 9.
CHECK ENGINE FUEL
Do not refuel while smoking, near an open flame or other potential hazards.
CLEANING AIR CLEANER
Do not run the engine without the air cleaner. Rapid engine wear will result.
If the air cleaner element is seriously contaminated, engine start up failure, poor output or engine
malfunction may result.
Check Air Cleaner to be sure it is clean and not contaminated. If cleaning is required, perform the following steps:
Remove the wing nut, air cleaner cover, outer urethane foam element and inner paper element. Wash the foam element in a
household cleaner and warm water. Rinse thoroughly and allow to dry completely. Saturate the foam element in engine oil and
squeeze out the excess oil. Tap the inner paper element lightly on a hard surface or blow out with compressed air from the
inside. Do not use a brush to clean the element. Wipe out the air cleaner cover with a clean damp cloth and reassemble the air
cleaner.
CHECK EACH PART FOR LOSE OR BROKEN BOLTS AND NUTS
Tighten loose bolts and nuts, if any. Check each part for fuel or oil leak. Replace broken or damaged parts, if any, with new
ones.
4-2

SECTION 4 - OPERATING INSTRUCTIONS
OPERATION
STARTING
1. Turn the STOP SWITCH (1, Figure 4-1) clockwise to the position “I” (ON).
Figure 4-1
2. Open the FUEL COCK (1, Figure 4-2) located right side.
Figure 4-2
3. Close the CHOKE LEVER (1, Figure 4-2). If the engine is cold or the ambient temperature is low, close the Choke Lever
fully. If the engine is warm or the ambient temperature is high, open the Choke Lever half-way, or keep it fully open.
4-3

SECTION 4 - OPERATING INSTRUCTIONS
4. Position THROTTLE LEVER (Figure 4-2) to “LOW” speed position.
Avoid fully pulling out the rope. Return the Handle to its original position.
5.Pull the STARTER HANDLE (1, Figure 4-2) of RECOIL STARTER slowly until resistance is felt. This is the “COMPRESSION”
point. Return the Handle to its original position and pull swiftly. After starting the engine, allow the Starter Handle to return
to its original position while still holding the Handle.
After the engine starts, set the Throttle Lever (Figure 4-2) at the low speed position “LOW” and warm it up without load for a few
minutes. Fully open CHOKE LEVER (1, Figure 4-2) gradually.
RUNNING
1. Shift the Throttle Lever (Figure 4-2) to “HIGH” speed position quickly. Vibration starts and the unit moves forward..
STOPPING
1. Shift the throttle lever (Figure 4-2) to “LOW” speed position.
2. Allow the engine to run at low speed for 2-3 minutes before stopping.
3. Turn the STOP SWITCH (1, Figure 4-1) counterclockwise to the position “O”(OFF).
4.Close the fuel cock (1, Figure 4-2).
Do not stop engine suddenly while running at high speed
4-4

SECTION 4 - OPERATING INSTRUCTIONS
LONG STORAGE
Discharge fuel (No Smoking !)
1. Remove the strainer cup of the fuel cock, place the strainer over a container and open the fuel cock to discharge fuel from
the fuel tank. Remove the carburetor float chamber bolt from the bottom and discharge fuel from the carburetor
2. Close the fuel cock.
3. Change the engine oil.
4. Remove the spark plug, pour about 5 cc (0.2 ounces) of the engine oil into the cylinder, slowly pull the starter handle of the
recoil starter 2 or 3 times, and re-install the spark plug.
5. Slowly pull the recoil starter handle until resistance is felt and leave it in that position.
6. Clean the unit and engine.
7. Store the unit and engine indoors in a well-ventilated, low humidity area. Use the cover to avoid dirt, etc. if storage will be
for a long time.
Always stop the engine and allow cooling down before covering the unit.
4-5

SECTION 5 - FUEL AND LUBRICATION SPECIFICATIONS
Contents Page
GENERAL INFORMATION __________________________________________________________________ 1
FLUID CAPACITIES ______________________________________________________________________ _ 1
GENERAL INFORMATION
Lubrication is an essential part of preventive maintenance, affecting to a great extent the useful life of the unit. Different
lubricants are needed and some components in the unit require more frequent lubrication than others.
Specific recommendations of brand and grade of lubricants are not made here due to regional availability, operating conditions,
and the continual development of improved products. Where questions arise, refer to the requirements and specifications in the
engine manufacturer's manual.
All oil levels are to be checked with the machine parked on a level surface, and while the oil is cold, unless otherwise specified.
TABLE 5-1 FLUID CAPACITIES
Fuel is flammable. May cause injury and property damage.
Shut down the engine, extinguish all open flames and do not smoke while filling the fuel tank.
Always wipe up any spilled fuel.
1. Stop the engine and open the fuel tank cap.
2. Use the automobile unleaded gasoline only.
3. Close the fuel cock before filling the fuel tank.
4. When filling the fuel tank, always use the fuel filter.
5. Wipe off any spilled fuel before starting the engine.
5-1
FUEL/OIL APPROXIMATE CAPACITY
MX-80 MX-90/110
ENGINE FUEL (Unleaded Gasoline) ______________________________ 2.5 litter 3.6 litter
VIBRATORY SHAFT CASE OIL(SAE 10W30) _______________________ 0.2 litter 0.2 litter
ENGINE OIL (SAE 10W30) ______________________________________ 0.6 litter 0.6 litter

SECTION 6 - INITIAL BREAK-IN MAINTENANCE
Contents Page
ENGINE OIL __________________________ ___________________________________________________ 1
GENERAL INFORMATION __________________________________________________________________ 2
Improper maintenance can be hazardous.
Read and understand SECTION 1 - SAFETY PRECAUTIONS AND GUIDELINES before you perform
any maintenance, service or repairs.
ENGINE OIL
Drain the engine oil after the first 20 hours of operation. Fill with the correct amount of the recommended oil. Check the oil
level with the oil filler cap/dip stick. See Section 9.
Hot oil and/or components can burn.
Oil must be at normal operating temperature when draining.
Avoid contact with hot oil or components.
6-1

SECTION 6 - INITIAL BREAK-IN MAINTENANCE
GENERAL MAINTENANCE
Perform the following maintenance checks after the initial break in period.
1. Check Bolts and Nuts for looseness. Tighten it if necessary.
2. Check for fuel and oil leak.
3. Keep the RUBBER BUFFER away from oil and fuel.
4. Check the V-Belt for wear, damage and cracks. If necessary, replace the belt with new one.
5. Please refer to “Owner’s Manual” for Honda GX120 for MX-80 and Honda GX160 for MX-90/110 regarding engine
maintenance.
6-2

SECTION 7 - TOUBLE SHOOTING - GENERAL MAINTENANCE
Contents Page
TROUBLE SHOOTING _____________________________________________________________________ 1
GENERAL MAINTENANCE _________________________ ________________________________________ 2
TROUBLESHOOTING
1) Engine fails to start.
2) Engine runs irregularly.
3) Machine fails to vibrate.
4) The traveling is bad or the vibration is diffuse.
7-1
a)Spark plug is defective Clean or replace.
b)Air in the fuel system. Bleed air completely.
c) Fuel tank is empty. Fill Tank
d)Carburetor is clogged Clean or replace, if necessary.
e)Excessive fuel. Open fuel drain cock and drain fuel. Clean spark plug.
a) Fuel line sucks air. Retighten the fuel pipe joints and bleed air.
b) Air cleaner is clogged. Clean air cleaner or replace element.
c) Engine stalls during operation. Clean fuel system and retighten the fuel pipe joints.
d) Low compression. Replace head gasket or retighten spark plug.
a) Incorrect setting RPM of engine. Adjust.
b) Throttle cable is slacked. Adjust.
c) Centrifugal clutch is slipped. Overhaul or replace, if necessary.
d) Belt is slipped. Adjust or replace, if necessary.
a) Incorrect setting RPM of engine. Adjust.
b) Air cleaner is clogged. Clean air cleaner or replace element.
c) Centrifugal clutch is slipped. Overhaul or replace, if necessary.
d) Belt is slipped. Adjust or replace, if necessary.