Multiquip MRH800DS2 User Manual
OPERATION AND PARTS MANUAL
SERIES
MODEL MRH800DS2
VIBRATORY ROLLER
(YANMAR L100V1AJ1R1AAMK DIESEL ENGINE)
Revision #1 (4/12/11)
To fi nd the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PROPOSITION 65 WARNING
Diesel engine exhaust and some of
PAGE 2 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
NOTES
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 3
TABLE OF CONTENTS
MRH800DS2 Vibratory Roller
Proposition 65 Warning ........................................... 2
Parts Ordering Procedures ...................................... 5
Safety Information ..............................................6-10
Specifi cations ................................................... 12-13
Dimensions ............................................................ 14
General Information ............................................... 15
Components ..................................................... 16-19
Basic Engine .......................................................... 20
Inspection ......................................................... 22-23
Operation .......................................................... 24-27
Maintenance ..................................................... 28-32
Troubleshooting ................................................ 33-35
Explanation Of Code In Remarks Column............. 36
Suggested Spare Parts ......................................... 37
Nameplates And Decals ................................... 38-39
Axle Assy. ......................................................... 40-41
Base Assy. ........................................................ 42-43
Front Guard Assy. ............................................. 44-45
Side Cover Assy. ............................................... 46-47
Water Tank Assy. .............................................. 48-49
Hydraulic System Assy. .................................... 50-53
Hydraulic Oil Tank Assy. .................................... 54-55
Engine Assy. ..................................................... 56-57
Electric Device Assy. ......................................... 58-59
Clutch (Vibration) Assy. ..................................... 60-61
Vibrator Assy. .................................................... 62-63
Upper Control Arm Assy. .................................. 64-67
Lower Control Arm Assy. .................................. 68-69
Yanmar L100V1AJ1R1AAMK Engine
Cylinder Block Assy .......................................... 70-71
Cylinder Head And Cover Assy ........................ 72-73
Air Cleaner And Muffl er Assy ........................... 74-75
Crankshaft, Piston, Camshaft Assy .................. 76-77
Lub. Oil Pump And Governor Assy....................78-79
Cooling And Starting Device Assy. ................... 80-81
Fuel Injection Pump And Valve Assy. ................ 82-83
Fuel Tank Assy. ................................................. 84-85
Starting Motor And Dynamo Assy. .................... 86-87
Tool, Label And Gasket Set .............................. 88-89
Terms and Conditions of Sale — Parts ................. 90
NOTICE
Specifi cations and part numbers are subject to change
without notice.
PAGE 4 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
PARTS ORDERING PROCEDURES
www.multiquip.com
Ordering parts has never been easier!
Choose from three easy options:
January 1
Effective:
st
, 2006
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specifi cation Information
Goto www.multiquip.com and click on
Order Parts
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
to log in and save!
Order via Phone:
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change
Domestic (US) Dealers Call:
1-800-427-1244
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 5
When ordering parts, please supply:
❒ Dealer Account Number
❒ Dealer Name and Address
❒ Shipping Address (if different than billing address)
❒ Return Fax Number
❒ Applicable Model Number
❒ Quantity, Part Number and Description of Each Part
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL
■ Priority One ✓ Truck
■ Ground
■ Next Day
■ Second/Third Day
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 specifi cally 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
The following table shows the potential hazards associated
with the operation of this equipment.
Symbol Safety Hazard
Lethal exhaust gas hazards
Explosive fuel hazards
Burn hazards
Respiratory hazards
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.
Rotating parts hazards
Pressurized fluid hazards
Electric shock hazards
Runover hazards
PAGE 6 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
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 infl uence 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.
NOTICE
This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation 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
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst 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 fi re department.
This information will be invaluable in the case of an
emergency.
ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 7
SAFETY INFORMATION
ROLLER SAFETY
DANGER
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re 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.
Never leave the roller unattended with the engine
running. Turn off engine.
DO NOT use worn-out hoses or couplings. Inspect daily.
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 fl ow of cooling air. NEVER operate this equipment
in any enclosed or narrow
area where free fl ow of the
air is restricted. If the air
fl ow is restricted it will cause
injury to people and property
and serious damage to the
equipment or engine.
DANGEROUS
GAS FUMES
Use chock blocks when parking roller on a grade.
Use extreme care when operating near obstructions, on
slippery surfaces, grades, and slide slopes.
When reversing, particularly on the edges and banks
of ditches, as well as in front of obstaces, the operator
must stay in a standing position at a safe distance from
the machine.
When operating near any house/building or pipelines,
always check the effect of machine vibration. Stop work
if necessary.
DO NOT operate the roller with the covers open.
ALWAYS keep the machine away from other personnel
and obstacles. Always keep immediate are free of
bystanders.
NOTICE
ALWAYS keep the machine in proper running condition.
Fix damage to machine and replace any broken parts
immediately.
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 fi ngers, hands hair and clothing away
from all moving parts to prevent injury.
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 roller.
CAUTION
NEVER touch the hot exhaust manifold,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
Always turn the engine off before performing maintenance.
PAGE 8 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
SAFETY INFORMATION
NOTICE
NEVER run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
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 diffi cult.
FUEL SAFETY
DANGER
DO NOT add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
fi re due to static electricity.
FUEL
or hot.
DO NOT overfi ll 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 fl ames.
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.
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 fl ames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
fl ame or spark, an explosion could occur.
FUEL
DO NOT start the engine near spilled fuel or combustible
fl uids. Diesel fuel is extremely fl ammable and its vapors
can cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open fl ames.
ALWAYS use extreme caution when working with
fl ammable liquids.
DO NOT fi ll the fuel tank while the engine is running
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,
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 9
SAFETY INFORMATION
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.
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 are not
damaged and screws are not loose or missing.
transporting on a trailer. Make sure all supports attaching
the roller to the trailer are tight.
ENVIRONMENTAL SAFETY
NOTICE
Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel fi lters.
DO NOT use food or plastic containers to dispose of
hazardous waste.
DO NOT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
Use lifting equipment capable of lifting the weight of
the roller.
Always make sure crane or lifi tng 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 suffi cient
strength.
Use one point suspension hook and lift straight upwards
with suffi cient bearing capacity to prevent machine from
tilting or slipping.
DO NOT lift machine to unnecessary heights.
ALWAYS make sure that roller is secured correctly when
PAGE 10 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
NOTES
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 11
Table 1. Specifi cations (Vibratory Roller)
SPECIFICATIONS
Dimensions
Drum Diameter 16 in. (406 mm)
Drum Width 25.6 in. (650 mm)
Curb Clearance 9.6 in. (243 mm)
Side Overhang .83 in.(21 mm)
Operating Weight (with water) 1562 lbs. (710 kg)
Vibration Frequency 3,300 vpm
Centrifugal Force 23.5/2,400 kn/kgf
Drive System Hydraulic Motor
Vibration System Frame
Vibration Method Belt Drive
Vibrator Shaft Twin
Gradeablility 35 degrees
Working Speed 0 - 3 mph (0 - 4.8 kph)
Fuel Tank Capacity 1.88 gallons (7.1 liters)
Lubricating Oil 6.6 gallons (25 liters)
105 x 27.2 x 41.7 in
(2670 x 692 x 1060 mm)
Water Tank Capacity 10.57 gallons (40 liters)
Engine Model YANMAR Model L100V1AJ1R1AAMK
Starting System Electric/Recoil Start
PAGE 12 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
SPECIFICATIONS
Table 2. Specifi cations (Engine)
Engine Model YANMAR L100V1AJ1R1AAMK
Engine Type Air-cooled Diesel
Cylinder Bore X Stroke 3.4 x 2.95 in (86 x 75 mm)
Displacement 14.7 fl oz (435 cc)
Maximum Ouput 8.7 HP
Fuel Tank Capacity 5.6 quarts (5.4 liters)
Oil Capacity 1.7 quarts (1.6 liters)
Dry Net Weight 117.9 lbs. (54 kg)
Dimensions (L x W x H) 16.22 x 18.54 x 19.45 in (412 x 471 x 494 mm)
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 13
DIMENSIONS
Figure 1. MRH800DS2 Dimensions
Table 3. Dimensions
A 105 in. 2670 mm.
B 57 in. 1445 mm.
LENGTH
WIDTH
HEIGHT
PAGE 14 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
C 10 in. 255 mm.
D 22.8 in. 580 mm.
E 13.8 in. 350 mm.
F 27.2 in. 692 mm.
G 13.6 in. 346 mm.
H 78.3 in. 1990 mm.
I 46.5 in. 1180 mm.
J 37.4 in. 950 mm.
K 41.7 in. 1060 mm.
L 9.6 in. 245 mm.
The Mikasa Model MRH800DS2 is a powerful compacting
tool capable of applying tremendous force in consecutive
impacts to a soil surface. Its applications include soil
compacting for backfi lling for gas pipelines, water pipelines
and cable installation work.
The impact force of the MRH800DS2 levels and uniformly
compacts voids between soil particles to increase dry
density.
Features include:
Hydraulic transmission to allow speed change without
gear shifting.
Deadman device which when pressed or hit will cause
the travel lever to return to neutral position bringing the
machine to a stop.
A horn to warn of machine’s approach.
Non-corrosive water tank for the sprinkler system with
a capacity of more than 10 gallons.
GENERAL INFORMATION
Lifting hook to transport machine.
Front bumper and working light.
Narrow profi le with less than one inch wall clearance.
Narrower width allows access to tighter areas. No
exposed hydraulic hoses.
Oil bath lubricated bearings and external vibration for
less servicing and more dependability.
Front and rear drum scrapers.
Drum sprinkler system controls located near the operator.
Easy access to hydraulic components and hydraulic fi lter.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 15
COMPONENTS
1
2
4
3
6
8
9
5
10
11
7
Figure 2. MRH800DS2 Components
PAGE 16 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
Figure 2 illustrates the location of the major components
for the MRH800DS2 Vibration Roller. The function of each
component is described below:
1. Fuel Tank/Cap — Fill with diesel fuel. Fuel tank holds
approximately 2 gallons (7.5 liters). DO NOT top off
fuel. Wipe up any spilled fuel immediately.
2. Center Cover — When opened and supported by strut,
provides access to oil pump and fi lter, battery, V-belt,
and clutch box.
3. Vibration Rollers — 25-inch wide steel drums that
provide compaction force in the compaction and
patching of asphalt type surfaces.
4. Front Headlights — Activate using switch on control
handle. Use to illuminate ground during nighttime or
low-light operating conditions.
5. Hydraulic Oil Gauge — Indicates the hydraulic oil
level.
COMPONENTS
6. Oil Tank — Fill with proper grade of hydraulic oil.
7. Vibrator Oil Level Plug — Remove to check vibrator
oil level.
8. Lifting Hook — Used to lift the machine with crane or
other lifting device.
9. Engine — This machine uses the Yanmar
L100V1AJ1R1AAMK engine. Refer to the engine
Owner’s Manual for more information.
10. Water Tank — Holds 10.57 gallons (40 liters) for the
sprinkler system.
11. Parking Brake — Makes sure machine will not
accidentally move when parked or not in use.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 17
3
4
COMPONENTS
1
2
5
Figure 3. Handle Bar/Lever Components
PAGE 18 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
6
HANDLE BAR/LEVER COMPONENTS
Figure 3 illustrates the location of the major lever
components on the handle bar of the machine. Each
component is described below:
1. Travel Lever — Controls the direction of travel of the
machine (forward and reverse).
2. Horn Button — When pressed, gives a warning sound
of the machine approaching.
3. Vibration Lever — Turns vibration on and off.
4. Throttle Lever — Controls the start up of the machine.
5. Dead-Man Device — When pressed or hit while
traveling in reverse, causes the travel lever to return
to neutral position to stop the machine.
6. Light ON/OFF Switch — Turns headlight on and off.
7. Starter Switch — Engine starts when key is turned
to the RUN position.
COMPONENTS
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 19
BASIC ENGINE
Figure 4. Yanmar Engine Components
ENGINE COMPONENTS
Figure 4 illustrates the location of the major engine
components. Each component is described below:
1. Fuel Filler Cap — Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fi ll.
2. Fuel Tank — Diesel engine holds 5.7 quarts of diesel
fuel.
3. Air Cleaner — Prevents dirt and other debris from
entering the fuel system. Remove wing-nut on top of
air fi lter canister to gain access to fi lter element.
4. Muffl er — Used to reduce noise and emissions.
5. Recoil Starter (pull rope) — Type of engine starting
method. Alternate type would be electric start (ignition
key).
PAGE 20 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
6. Recoil Starter — Housing for pull rope and starter.
7. Oil Filler Cap/Dipstick — Remove this cap to add oil
to the oil tank. Use dipstick to check oil level.
8. Oil Drain Plug — Unscrew plug to drain oil from engine
crankcase. Dispose of oil in a safe manner.
9. Decompression Lever — Press down before starting
engine. To prevent damage to the engine, DO NOT use
for any other purpose.
10. Fuel Cock — Controls the fl ow of diesel fuel to the
engine. Must be in the ON position when starting and
running the engine.
NOTES
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 21
INSPECTION
BEFORE STARTING
1. Read safety information at the beginning of manual.
2. Remove dirt and dust, particularly in the engine cooling
air inlet, carburetor and air cleaner.
3. Check the air fi lter for dirt and dust. If air fi lter is dirty,
replace air fi lter with a new one.
4. Check carburetor for external dirt and dust. Clean with
dry compressed air.
5. Check fastening nuts and bolts for tightness.
6. Understand the geographical features and regulations
of the job site.
ENGINE OIL CHECK
1. To check the engine oil level, place the machine on
secure level ground with the engine stopped.
2. Remove the fi ller dipstick from the engine oil fi ller hole
(Figure 5) and wipe clean.
CHECKING THE HYDRAULIC SYSTEM
1. Check the oil tank level gauge (Figure 6). Oil level
should be at the middle indication of the gauge or
higher. Fill as required.
LEVELS SHOULD BE
MIDDLE OF GAUGE
OR HIGHER
Figure 6. Hydraulic System Oil Level Gauge
2. Check the surroundings of the oil tank, hydraulic pump
and motor for oil leakage.
CHECKING THE V-BELT
Figure 5. Engine Oil Level
3. Insert and remove the dipstick without screwing it into
the fi ller neck. Check the oil level shown on the dipstick.
4. If the oil level is low, fi ll to the edge of the oil fi ller hole
with the recommended oil type (Table 4). Maximum oil
capacity is 1.16 quarts (1.1 liters).
Table 4. Oil Type
Season Temperature Oil Type
Summer 25°C or Higher SAE 10W-30
DANGER
ALWAYS keep hands and fi ngers away
from pinch points. DO NOT allow anyone
to reach in on dangerous sections of the
machine to avoid any accidents.
1. Remove the 2 bolts, one on each side of the center
cover, with a #13 socket wrench. Open the center cover
of the machine and support it with the strut by inserting
its end to the hole in the base (Figure 7).
CENTER
COVER
STRUT
V-BELT
Spring/Fall 25°C~10°C SAE 10W-30/20
Winter 0°C or Lower SAE 10W-10
2. Check V-belt for proper tension. Insuffi cient tension
Figure 7. Checking V-Belt Tension
causes weak vibration.
PAGE 22 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
INSPECTION
CHECKING THE VIBRATOR OIL LEVEL
1. Check vibrator casing for any oil leakage.
2. If any leakage is noticed, remove the level plug on the
side of the plate (Figure 8).
VIBRATOR OIL
LEVEL PLUG
Figure 8. Checking Vibrator Oil Level
3. Check the oil level.
FUEL CHECK
DANGER
Motor fuel is highly fl ammable and can be
dangerous if mishandled. DO NOT smoke
while refueling. DO NOT attempt to refuel
the pump if the engine is hot or running.
CHECKING LEVERS AND HORN
1. Check travel, vibration, and throttle levers to make sure
they are functioning properly (Figure 3).
2. With travel lever placed in reverse, push the deadman
device and verify that the travel lever returns to neutral
position. The travel lever stays in neutral position once
the deadman device is released.
3. Press the horn and verify that it functions properly.
CHECKING SCRAPERS
1. Check scrapers and make sure that they are not
clogged with mud, bent or damaged (Figure 10).
SCRAPERS
Figure 10. Checking Scrapers
1. Remove the fuel cap located on top of the engine fuel
tank.
2. Visually inspect to see if the fuel level is low. If fuel is
low, replenish with unleaded gasoline using a strainer
for fi ltration. DO NOT top-off fuel. Wipe up any spilled
fuel immediately!
CHECKING WATER TANK
Check the water tank to see if fi lled. Add water if necessary.
The water tank has a capacity of approximately 10 gallons
(40 liters). See Figure 9.
Figure 9. Checking Water Tank
2. Adjust clearance between drums and scrapers as
necessary.
CHECKING BOLTS, NUTS AND SCREWS
1. Check bolts, nuts, and screws on various parts of the
machine, including the engine, for proper tightness.
POSITIONING THE HANDLE BAR
1. Release the handle bar release pin (Figure 11) and
position the handle bar to the lowered position before
starting operation.
HANDLE BAR
RELEASE PIN
Figure 11. Positioning the Handle Bar
CAUTION
2. When machine is not in use, release the handle bar
release pin and position the handle bar to the upright
Be careful not to confuse the water tank with the oil tank.
position.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 23
OPERATION
CAUTION
DO NOT attempt to operate the roller
until the Safety Information, General
Information, and Inspection sections of this
manual have been read and thoroughly
understood.
STARTING THE ENGINE
The engine can be started by motor (electric) or manually
(recoil). Refer to Figure 2 and Figure 3 for the location of
controls and components.
Electric Start
CAUTION
When the engine is running, never turn the starter key
to the START position
1. On the control handle:
a. Move the throttle lever to the RUN position.
b. Move the travel lever to the NEUTRAL position.
c. Move the vibration lever to the OFF position.
2. Open the fuel cock by turning it clockwise to the down
position (Figure 12).
4. Turn the starter key further to the right to the START
position (Figure 14) to start the engine. Buzzer stops
sounding when the engine speed increases. With safety
switch equipped, motor runs only when the travel lever
is in the neutral position.
Figure 14. Starter Key (Start Position)
5. If the engine fails to start, do not continue to rotate the
starter key for more than 5 seconds. Return the key
to the RUN position and wait 20 to 30 seconds before
starting again.
6. After starting the engine, continue to warm up the
engine for about 3 to 10 seconds especially in cold
weather.
7. If the buzzer does not stop sounding after the engine
has started, shutdown engine immediately and check
engine oil level. The buzzer functions as engine oil
level warning also.
RECOIL START
1. Move the throttle lever to the RUN position.
2. Open the fuel cock by turning it clockwise to the down
position (Figure 12).
3. Pull the starting handle slowly until you feel some
resistance (Figure 15). Return handle to original
FUEL COCK
(OPEN POSITION)
Figure 12. Open Fuel Cock
3. Insert the starter key into the key switch and turn it
to the RUN position (Figure 13). The buzzer should
sound at this time.
Figure 13. Starter Key (Run Position)
PAGE 24 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
position.
PULL HANDLE
TO START
Figure 15. Engine Start Handle
OPERATION
4. Push down the decompression lever (Figure 16).
Figure 16. Decompression lever
5. Pull the starting handle hard and fast to start engine
(Figure 15).
6. If the engine does not start, repeat steps 3 through 5.
NOTICE
When starting with a motor starter, a decompressor
is not normally required. However, when ambient
temperature or battery charger level is low, use of a
decompressor will help make the start-up easier.
TRAVELING
6. Push the travel lever backward to go in the reverse
direction.
CAUTION
Do not reduce speed during work. When shifting travel
lever from forward to reverse, be sure to stop the lever at
the neutral position fi rst before moving the lever to the
opposite direction. Do not shift the lever from forward to
reverse (or reverse to forward) in one motion.
CAUTION
After test travel, shut down engine and check for any
problems including oil leakage. If any trouble is found,
correct the problem before attempting to operate the
roller again.
VIBRATING
1. Shift the vibration lever away from its off position. The
vibration lever will automatically spring forward and the
roller will start vibrating (Figure 18).
1. Before starting to travel, make sure to release parking
brake located on the left side of the rear roller. If the
parking brake lever is tight, moving the roller back and
forth will make it easier (Figure 17).
PARKING BRAKE
(RELEASED
POSITION)
Figure 17. Parking Brake
2. With the throttle lever in the RUN position, increase
the engine rotation.
3. Push the travel lever forward slightly. This will cause
the roller to travel forward at slow speed.
4. To increase the travel speed, push the travel lever
further.
5. Travel speed can be varied between 0 and 3 km/h
(both forward and reverse).
VIBRATION LEVER
(OFF POSITION)
Figure 18. Vibration Lever (Off Position)
CAUTION
Using vibration with clutch slipping causes the clutch to
burn. Also, vibration should not be used over completely
compacted area, paved road surface, or with stationary
roller.
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 25
OPERATION
WATERING
2. For watering work, turn the water cocks clockwise, at
the rear of the machine, to start sprinkling. (Figure 19).
WATER COCK
FOR FRONT DRUM
WATER COCK
FOR REAR DRUM
Figure 19. Water Cocks
SAFETY FEATURES
A horn is provided to warn of approach.
The dead man device prevents accidental traveling in
reverse. It automatically makes the travel lever return to
neutral position by stopping the machine when an object
comes in contact with the dead man device.
STOPPING
1. With travel lever in the neutral position, and the
vibration lever in the off position, return the throttle
lever to the START position. Allow the machine to cool
down for 3 to 5 minutes.
2. Push the throttle lever forward to stop the engine. In a
motor start, return the key switch to the STOP position
as soon as the engine stops.
UNLOADING
5. If you need to move the roller by pushing it manually
once engine is stopped, loosen bolt of bypass valve
on oil pump by one rotation counterclockwise. This will
cause the hydraulic brake to disengage and allow the
roller to be moved more easily (Figure 20).
Bypass
Valve
Bolt
Figure 20. Location of Bypass Valve Bolt
6. After moving, tighten the bolt again. Tightening torque
is 55 to 70 kgf-cm.
CAUTION
NEVER tow roller with any type of vehicle. Doing so
will damage the hydraulic system.
Never perform unloading procedure on a slope. This
may cause roller to roll down if parking brake or blocking
is defi cient.
LIFTING
CAUTION
Neglecting to return the key switch to the STOP position
will cause the battery to discharge making start up
impossible the next time.
3. After the engine stops, close the fuel cock.
4. Lock the parking brake by pulling the brake lever and
rotating it 90° clockwise.
NOTICE
Parking brake system should always be kept clean to
avoid mud deposits.
PAGE 26 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
1. Use a crane or lift to load and unload the machine. A
skilled crane operator is required to perform the job.
2. When lifting the machine, check for any damaged or
loose bolts, lifting hooks, and shock mounts.
3. Check any damaged or loose bolts in the guard frame
to avoid machine sliding off.
4. Make sure that the machine is shut off before machine
is lifted.
5. Use reliable cable for lifting.
6. Always lift the machine vertically and keep the machine
away from workers and animals.
7. Do not lift the machine higher than the required height.
TRANSPORTING
1. Always make sure that the machine is shut off while
being transported.
2. Check that the fuel cap is properly closed and tightened.
3. When traveling long distances or on rugged terrain,
drain the fuel of the machine before transporting.
4. Tie down the machine securely on the transportation
so that it will not move or topple over.
CAUTION
Inspection and other services should always be carried
out on hard and level ground with the engine shutdown.
OPERATION
MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 27
MAINTENANCE
CAUTION
Inspection and other services should always be carried
out on hard and level ground with the engine shutdown.
INSPECTION AND MAINTENANCE SERVICE TABLES
To make sure your vibratory roller is always in good
working condition before using, carry out the maintenance
inspection procedures.
Table 5. Machine Inspection
ITEM HOURS OF OPERATION
Loose or Missing Screws Every 8 hours (every day)
Damaged Parts Every 8 hours (every day)
Function of Controlling
System Part
Hydraulic System Leak Every 100 hours
Vibrator Oil Check Every 100 hours
Vibrator Oil Replacement Every 300 hours
Hydraulic Oil Check Every 100 hours
Hydraulic Oil Replacement
V-belt (clutch) Check Every 200 hours
Battery Check Every 100 hours
NOTICE
Every 8 hours (every day)
First after 200 hours, then
every 1,000 hours
Table 6. Engine Check
ITEM HOURS OF OPERATION
Oil or Fuel Leak Every 8 hours (every day)
Tightness of Fastening
Threads
Engine Oil Check and
Replenishment
Engine Oil Replacement
Every 8 hours (every day)
Every 8 hours (every day)
(Replenish to specifi ed
maximum level)
After fi rst 25 hours then
every 50 to 100 hours
Air Filter Cleaning Every 100 hours
DAILY SERVICE
1. Check for leakage of fuel or oil.
2. Check for loose screws including tightness. See Table
7 below (tightening torque ), for retightening:
Table 7. Tightening Torque (in. kg/cm) Diameter
Material
4T
6-8T
11T
*
6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm
70 150 300 500 750 1,100 1,400 2,000
100 250 500 800 1,300 2,000 2,700 3,800
150 400 800 1,200 2,000 2,900 4,200 5,600
300~
350
650 ~
700
100
These inspection intervals are for operation under
normal conditions. Adjust your inspection intervals
based on the number of hours the roller is in use, and
your particular working conditions.
NOTICE
3. Remove soil and clean the bottom of roller.
4. Check hydraulic pump, piping and hose for any leakage.
5. A loosened hydraulic hose can be a cause for leakage.
Check hydraulic hose connections with wrench applied
for tightness.
Fuel piping and connections should be replaced every
2 years.
6. Check engine oil.
ENGINE OIL REPLACEMENT:
1. Replace engine oil in the fi rst 25 hours of operation
and every 50 to 100 hours afterwards.
2. Oil may be drained more easily when it is warm after
operation (For more details, see separate engine
Owner's Manual).
PAGE 28 — MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11)
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