MQ Multiquip MVH308DE User manual

OPERATION MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
SERIES
MODEL MVH308DE
REVERSIBLE PLATE COMPACTOR
(HATZ 1B30E DIESEL ENGINE)
Revision #0 (09/06/22)
To find the latest revision of this publication or
associated parts manual, visit our website at:
www.multiquip.com

PAGE 2 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
PROPOSITION 65 WARNING

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 3
NOTES

PAGE 4 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
TABLE OF CONTENTS
MVH308DE Reversible
Plate Compactor
Proposition 65 Warning ........................................... 2
Safety Information ................................................ 5-9
Specifications ........................................................ 10
Dimensions............................................................ 11
General Information............................................... 12
Components ..................................................... 14-15
Basic Engine.......................................................... 16
Inspection ......................................................... 17-19
Startup.............................................................. 20-21
Operation.......................................................... 22-23
Maintenance..................................................... 25-31
Troubleshooting (Compactor) ................................ 32
Troubleshooting (Engine).................................. 33-34
Wiring Diagram...................................................... 35
NOTICE
Specifications and part numbers are subject to change
without notice.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 5
SAFETY INFORMATION
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.

PAGE 6 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
SAFETY INFORMATION
GENERAL SAFETY
CAUTION

NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.

NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.

NEVER operate this equipment under the influence of
drugs or alcohol.

ALWAYS check the equipment for loosened threads or
bolts before starting.

DO NOT use the equipment for any purpose other than
its intended purposes or applications.

ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.
NOTICE

This equipment should only be operated by trained and
qualified personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
NEVER
use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fire extinguisher.
ALWAYS know the location of the nearest
first aid kit.
ALWAYS know the location of the nearest phone or
keep
a phone on the job site.
Also, know the phone numbers
of the nearest ambulance, doctor and
fire department.
This information will be invaluable in the case of an
emergency.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 7
SAFETY INFORMATION
COMPACTOR SAFETY
DANGER

NEVER operate the equipment in an explosive
atmosphere or near combustible materials.An
explosion or fire could result causing severe
bodily harm or even death.
WARNING

NEVER disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.
CAUTION

NEVER lubricate components or attempt service on a
running machine.
NOTICE

ALWAYS keep the machine in proper running condition.

Fix damage to machine and replace any broken parts
immediately.

ALWAYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
ENGINE SAFETY
DANGER

The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.

The engine of this equipment requires an adequate
free flow of cooling air. NEVER operate this equipment
in any enclosed or narrow
area where free flow of the
air is restricted. If the air
flow is restricted it will cause
injury to people and property
and serious damage to the
equipment or engine.
MVH-306
MVH-306
WARNING
DO NOT
place hands or fingers inside engine
compartment when engine is running.
NEVER
operate the engine with heat shields or
guards removed.
Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the radiator cap while the
engine is hot. High pressure boiling water will gush out
of the radiator and severely scald any persons in the
general area of the compactor.
DO NOT remove the coolant drain plug
while the engine is hot. Hot coolant will
gush out of the coolant tank and severely
scald any persons in the general area of
the compactor.
DO NOT
remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
compactor.
CAUTION
NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
NEVER
run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filter
frequently to prevent engine malfunction.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
NEVER
tip the engine to extreme angles during lifting as
it may cause oil to gravitate into the cylinder head, making
the engine start difficult.

PAGE 8 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
SAFETY INFORMATION
FUEL SAFETY
DANGER
DO NOT add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
fire due to static electricity.
DO NOT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open flames.
ALWAYS use extreme caution when working with
flammable liquids.
DO NOT fill the fuel tank while the engine is running
or hot.
DO NOT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
NEVER use fuel as a cleaning agent.

DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
MVH-306
MVH-306
BATTERY SAFETY (ELECTRIC START ONLY)
DANGER
DO NOT
drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
WARNING
ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up
the battery.
ALWAYS
keep the battery charged. If the battery is not
charged, combustible gas will build up.
DO NOT
charge battery if frozen. Battery can explode.
When frozen, warm the battery to at least 61°F (16°C).
ALWAYS
recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gases.
If the battery liquid (dilute sulfuric acid)
comes into contact with clothing or skin,
rinse skin or clothing immediately with
plenty of water.

If the battery liquid (dilute sulfuric acid) comes into
contact with eyes
, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CAUTION
ALWAYS disconnect the
NEGATIVE battery terminal
before performing service on the equipment.
ALWAYS
keep battery cables in good working condition.
Repair or replace all worn cables.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 9
SAFETY INFORMATION
TRANSPORTING SAFETY
CAUTION

NEVER allow any person or animal to stand underneath
the equipment while lifting.
NOTICE

Before lifting, make sure that the equipment parts (hook
and vibration insulator) are not damaged and screws are
not loose or missing.

Always make sure crane or lifitng device has been
properly secured to the lifting bail (hook) of the
equipment.

ALWAYS shutdown engine before transporting.

NEVER lift the equipment while the engine is running.

Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.

Use adequate lifting cable (wire or rope) of sufficient
strength.

Use one point suspension hook and lift straight
upwards.

DO NOT lift machine to unnecessary heights.

ALWAYS tie down equipment during transport by
securing the equipment with rope.
ENVIRONMENTAL SAFETY/
DECOMMISSIONING
NOTICE
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below:

DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.

Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
When the life cycle of this equipment is over, remove
battery and bring to appropriate facility for lead
reclamation. Use safety precautions when handling
batteries that contain sulfuric acid.

When the life cycle of this equipment is over, it is
recommended that the trowel frame and all other metal
parts be sent to a recycling center.
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.
EMISSIONS INFORMATION
NOTICE
The diesel engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
contained in diesel exhaust emissions.
This engine has been certified to meet US EPA Evaporative
emissions requirements in the installed configuration.
Attempting to modify or make adjustments to the engine
emission system by unauthorized personnel without proper
training could damage the equipment or create an unsafe
condition.
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fines or other penalties.
Emission Control Label
The emission control label is an integral part of the emission
system and is strictly controlled by regulations.
The label must remain with the engine for its entire life.
If a replacement emission label is needed, please contact
your authorized Kohler Engine Distributor.

PAGE 10 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
SPECIFICATIONS
Table 1. MVH308DE Specifications
Centrifugal Force 9,217 lbf (41 kN)
Vibration Frequency 4,400 vpm (73 Hz)
Maximum Traveling Speed 85 ft/min (26 m/min)
Plate Size (W x L) 17.52 x 33.86 in (445 x 860 mm)
Plate Size (W x L) with extension plates 23.62 x 33.86 in (600 x 860 mm)
Recommended Battery Types Centennial 51R-75, Interstate MT-51R
Optima D51R
Battery Dimensions (LxWxH) 9.65 x 6.88 x 7.99 in. (245 x 175 x 203 mm)
Operating Weight 760.59 lbs. (345 kg.)
Operating Weight with extension plates 793.66 lbs. (360 kg.)
Table 2. Engine Specifications
Engine Make HATZ
Engine Model 1B30E
Engine Type Air-cooled, 4 Cycle Diesel Engine
Cylinder Bore X Stroke 3.15 x 2.72 in. (80 x 69 mm)
Displacement 21.18 cu-in (347 cc)
Maximum Ouput 6.1 BHP (4.5 Kw) @ 3600 RPM
Fuel Tank Capacity Approx. 1.4 U.S. gallons (5.3 liters)
Fuel Type Diesel
Oil Capacity 1.27 qts (1.2 liters)
Starting Method Recoil/Electric Start
Dry Net Weight 90 lbs (40.8 Kg)
Table 3. Noise and Vibration Emissions
Measured Sound Power Level in dB(A) 107
Guaranteed Sound Power Level in dB(A) 108
Hand-Arm Vibration in m/s25.5
NOTES:
1. Products are tested for vibration level in accordance with European Directives 2002/44/EC.
2. Test course (crushed gravel) is in compliance with European Directive EN500-4.
3. The above values are subject to change if machine is modified and/or the required regulations change.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 11
DIMENSIONS
Table 4. Dimensions
REF. DES IN. (MM)
A 17.52 (445)
B 23.62 (600)
C 34.65 (880)
D 47.64 (1210)
E 53.54 (1360)
F 33.86 (860)
G 60.63 (1540)
H 40.55 (1030)
Figure 1. Dimensions
STORED POSITION
WORKING POSITION
EXTENSION PLATE (OPTION)
E
D
H
A
C
G
F
B

PAGE 12 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
GENERAL INFORMATION
DEFINITION OF PLATE COMPACTOR
The Mikasa MVH308DE is a reversible plate compactor
designed for efficient compaction of sand, gravel and
cohesive soils. This plate compactor is a powerful
compacting tool capable of applying a tremendous force
in consecutive high frequency vibrations to a soil surface.
Its applications include compacting for road, embankments
and reservoirs as well as backfilling for gas pipelines, water
pipelines and cable installation work.
VIBRATORY PLATES
The vibratory plates of the compactor produce low
amplitude high frequency vibrations, designed to compact
granular soils and asphalt.
The resulting vibrations cause forward motion.The engine
and handle are vibration isolated from the vibrating plate.
FREQUENCY/SPEED
The compactor's vibrating plate produces a vibration
frequency of 4,400 VPM (vibrations per minute).
The travel speed of the compactor is approximately
85 ft/minute (26 meters/minute).
ENGINE
This plate compactor is equipped with a Hatz 1B30E
air cooled, 4-cycle diesel engine. The engine drives an
eccentric weight at a high speed to develop a compaction
force.
CONTROLS
Before starting the plate compactor identify and understand
the function of all the controls and components.
NOTICE
The MVH308DE plate compactor is shipped from the
factory without the battery. Battery can be purchased
locally. Reference Table 1 for battery specifications.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 13
NOTES

PAGE 14 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
COMPONENTS
Figure 2. Plate Compactor Components
Forward
Neutral Reverse
2
3
4
5
6
7
8
9
10
11
12
14
15
16
18
19
20
21
22
23 14
24
25
1
13
17

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 15
Figure 2 shows the location of the basic controls and
components of the MVH308DE Plate Compactor. The
function of each control is described below:
1. Rubber Cover — Lift this rubber cover to gain access
to the fuel tank.
2. Fuel Tank Cap — Remove cap to add fuel to the unit.
3. Hour/Tachometer — Displays the cumulative time
that the machine has been in use. During operation it
displays the rpm reading. The tachometer also has a
battery checker that lights red when the charge is low.
4. Handle Lock — Locks the handle in place when in
the stored position.
5. Key Switch — Used to turn the engine on or off.
6. Breather Plug — Allow pressure to escape to the air
in the form of a gas from heat.
7. Hand Grip — When operating the compactor use this
hand grip to maneuver the compactor.
8. Hydraulic Pump (Oil Reservoir) — Regulates
hydraulic oil flow produced by the direction of the
control lever.
9. Cyclone Cleaner — Filters large dust particles to keep
air cleaner from getting clogged easily.
10. Extension Plate — Provides additional area of
vibration to the vibrating plate.
11. Oil Filler for Engine — Used to fill engine oil.
12. Direction Control Lever (variable speed adjustable)
— Push the lever forward to move compactor in a
forward direction. Pull the lever backwards to move
compactor in backwards direction. Placing the lever in
the middle (midway) will cause the compactor not to
move (neutral).
13. Throttle Knob —Controls speed of the plate
compactor. Place straight vertically to start, push fully
counterclockwise for full throttle and fully clockwise to
stop plate compactor.
14. Handle — When operating the compactor, this handle
is to be in the downward position.When the compactor
is to be stored, move the handle bar to the upright
position.
15. Grip (Handle Bar Height Adjuster) — Adjusts the
handle bar to the desired height by loosening the wing
nut and turning the grip clockwise to raise the handle
bar and counterclockwise to lower the handle bar.
16. Battery — Provides +12V DC to the electrical system.
17. Vibrator Oil Drain Plug — Used to drain vibrator oil
from the machine.
18. Vibration Case Oil Filler — Used to add oil to the
vibration case.
19. Engine — This plate compactor uses a Hatz 1B30E
diesel engine. Refer to the owner’s manual for engine
information.
20. Front Cover — Covers the front of the compactor.
21. Center Cover — Covers the center of the compactor.
22. Stopper for Rear Cover — Holds the rear cover in
place.
23. Rear Cover — Covers the rear of the compactor.
24. Vibrating Plate — A flat, open plate made of durable
cast iron construction used in the compacting of soil.
25. Hook (Lifting Bale) — When lifting of the compactor is
required either by forklift, crane etc., tie rope or chain
around this lifting point.
COMPONENTS

PAGE 16 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
BASIC ENGINE
Figure 3. Engine Controls and Components
6. Engine Motor Mounts — Attach these engine mounts
to the compactor frame. Tighten securely.
7. Oil Filter — Remove this bolt to gain access
(internal) to the engine oil filter. Service the oil filter
as recommended in the maintenance section of this
manual.
8. Oil Drain Plugs —There are two oil drain plugs, one
is underneath the flywheel, the other on the side of the
engine. Remove these plugs to drain engine oil from
the engine crankcase.
9. Crankshaft — Connect this shaft to the input of the
transmission.
10. Muffler — Used to reduce noise and emissions.
11. Nameplate — Contains information about the engine.
NOTICE
Operating the engine without an air filter, with a
damaged air filter, or a filter in need of replacement
will allow dirt to enter the engine, causing rapid engine
wear.
WARNING
Engine components can generate
extreme heat. To prevent burns,
DO NOT touch these areas while the
engine is running or immediately after
operating. NEVER operate the engine
with the muffler removed.
INITIAL SERVICING
The engine (Figure 3) must be checked for proper lubrication
and filled with fuel prior to operation. Refer to the manufac-
turer’s Engine manual for operating and servicing information.
1. Fuel Filler Cap/Fuel Tank — Pull this latch to add
diesel fuel to the tank. After refueling, always make
sure the fuel cap is latched properly. DO NOT over
fill. For additional information refer to engine owner’s
manual.
.
2. Engine Lifting Straps/Cover — Remove the air
cleaner cover, then lift this cover (the one with decals
on it) to gain access to the engine lifting straps.
3. Air Cleaner/Cover — Prevents dirt and other debris
from entering the fuel system. Remove wing-nut on
side of air filter cover to gain access to filter element.
4. Speed Control Lever — This lever is connected to
the throttle control which is located on the side of the
engine compartment cover. Use this lever to control
engine speed.
5. Dipstick — Remove dipstick to determine if the engine
oil level is low. If low, add oil as specified.
DANGER
Adding fuel to the tank should be done
only when the engine is stopped and has
had an opportunity to cool down. In the
event of a fuel spill, DO NOT attempt to
start the engine until the fuel residue has
been completely wiped up, and the area
surrounding the engine is dry.

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 17
INSPECTION
BEFORE STARTING
1. Read all safety instructions at the beginning of manual.
2. Clean the compactor, removing dirt and dust,
particularly the engine cooling air inlet, carburetor and
air cleaner.
3. Check the air filter for dirt and dust. If air filter is dirty,
replace air filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with
dry compressed air.
5. Check fastening nuts and bolts for tightness.
ENGINE OIL CHECK
1. To check the engine oil level, place the compactor on
secure level ground with the engine stopped. If the oil
level is low, add oil (Grade CC or above).
2. Lubrication is done from the top of the engine (Figure 4).
Figure 4. Adding Engine Oil
Oil inlet at the top
NOTICE
Pour oil slowly from the top. Oil might overflow if large
amount of oil is poured right away.
Table 5. Oil Type
Season Temperature Oil Type
Summer 25°C or Higher SAE 10W-30
Spring/Fall 25°C~10°C SAE 10W-30/20
Winter 0°C or Lower SAE 10W-10
FUEL CHECK
1. The fuel tank cap is equipped with a lock lever. Unlock
the lever before opening cap (Figure 5).
Figure 5. Unlocking Fuel Cap Lever
1. Visually inspect to see if fuel level is low. If fuel is low,
replenish with unleaded fuel. Fuel inlet is located under
the rubber cover at the front cover top portion.
2. When refueling, be sure to use a strainer for filtration.
DO NOT top-off fuel. Wipe up any spilled fuel
immediately.
DANGER
EXPLOSIVE FUEL!
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt
to refuel the compactor if the engine is
hot! or running.
Lock lever Fuel tank cap
Put your finger at the lock lever
to pull it up towards you.
Unlock the lock lever.
Put your fingers to the tabs at
the two locations of the tank
cap to pull up towards you.

PAGE 18 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
V-BELT COVER REMOVAL
To inspect the V-belt, remove the top and bottom belt covers.
The V-belt will be as shown in Figure 6.
Figure 6. V-Belt Cover Removal
V-BELT INSPECTION
Visually examine the V-belt (Figure 7) and determine if it
is full of tiny cracks, frayed, has pieces of rubber missing,
is peeling or otherwise damaged.
Also, examine the belt and determine if it is oil soaked or
"glazed " (hard shiny appearance on the sides of the belt).
Either of these two conditions can cause the belt to run hot,
which can weaken it and increase the danger of it breaking.
If the V-belt exhibits any of the referenced wear conditions
replace the V-belt immediately.
Figure 7. Drive Belt Inspection
CLUTCH
V-BELT
VIBRATION PULLEY
GLAZED
OIL SOAKED
BROKEN
CORD FAILURE
CRACKS
MISSING RUBBER
SIDEWALL
WEAR
WORN BACK
COVER
INSPECTION
V-BELT TENSION
The V-belt tension is proper if the V-belt bends 10 to 15 mm
(Figure 8) when depressed with finger at midway between
the clutch and vibrator pulleys.
Figure 8. V-Belt Tension
VIBRATOR OIL CHECK
1. Place the plate compactor horizontally on a flat surface.
Make sure the compactor is level when checking the
oil in the vibrator assembly.
2. Check vibrator oil level by removing the oil plug (vibrator
oil gauge) as shown in Figure 9. Clean the oil gauge
and re-thread back in. Remove the oil gauge again and
confirm oil level does not exceed the cross hash of the
oil plug. DO NOT OVERFILL!.
3. The vibrator holds approximately 20.3 oz. (600 cc).
IMPORTANT, if oil is required, replace using only SAE
10W-30 motor oil.
Figure 9. Vibrator Oil Check
CORRECT V-BELT
TENSION 10-15 MM
WHEN DEPRESSED
AS SHOWN.
V-BELT
CLUTCH
PULLEY
VIBRATOR
PULLEY
Effective
Oil gauge
(19mm wrench)
Drain plug
(14mm wrench)

MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22) — PAGE 19
HANDLE BAR
The height of the handle bar can be adjusted for ease of
use. Adjust the handle height as follows. Refer to Figure 10.
1. Loosen the wing nut.
2. Turn the grip clockwise to raise the handle or
counterclockwise to lower the handle.
3. When the handle bar is raised to the desired height,
tighten the wing nut.
Figure 10. Handle Height Adjustment
Grip
Wing nut
INSPECTION

PAGE 20 — MVH308DE PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (09/06/22)
This section is intended to assist the operator with the
initial startup of the compactor. It is extremely important
that this section be read carefully before attempting to use
the compactor in the field.
STARTING THE ENGINE
Electric Start
1. Insert the key to the key switch.
2. Move the throttle lever (Figure 11) to the idle position.
Figure 11. Throttle Lever (Idle Position)
3. Turn the key to the "Run" position (Figure 12). The
buzzer sounds.
Figure 12. Key Positions
4. After "HA" is displayed on the hour tachometer, the
display will change immediately to "cumulative time"
(Figure 13).
CAUTION
DO NOT attempt to operate the compactor
until the Safety, General Information and
Inspection sections of this manual have
been read and thoroughly understood.
Stop position
Throttle lever
Handle
Idle position
STARTUP
DIESEL
ENGINE TACH &HOUR METER
DIESEL
ENGINE TACH &HOUR METER
HRS
"HA" is displayed at the operationposition, then
immediately it will change to "Cumulative time".
Figure 13. Hour Tachometer (Cumulative Time)
5. Turn the key further to the "Start" position to start the
engine.When the engine starts, let go of the key.When
the engine revolution increases, the buzzer stops.
6. When the engine is in operation, the Hour Tachometer
display will show the 'rotation number" (Figure 14).
Figure 14. Hour Tachometer (Rotation Number)
7. After the engine has started, warm up the engine at low
speed for 2 to 3 minutes, especially in cold weather.
DIESEL
ENGINE TACH &HOUR METER
HRS
DIESEL
ENGINE TACH &HOUR METER
RPM
Rotation number
Cumulative time
CAUTION
When the engine does not start, do not run the cell
motor continuously for more than 5 seconds. Move
the key back to the "Run" position then wait about 10
seconds to restart.
While the engine is running, never turn the key switch
to the "Start" position.