MQ Multiquip Mikasa MT76D Guide

OPERATION AND PARTS MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
SERIES
MODEL MT76D
TAMPING RAMMER
(YANMAR L40ADRM DIESEL ENGINE)
Revision #7 (07/14/16)

PAGE 2 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
FUEL AND CHEMICAL EXPOSURE WARNINGS
Diesel engine exhaust and some of
its constituents are know to cause
cancer, birth defects and other
reproductive harm.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 3
NOTES

PAGE 4 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
TABLE OF CONTENTS
MT76D Tamping Rammer
Fuel And Chemical Exposure Warnings.................. 2
Table Of Contents.................................................... 4
Parts Ordering Procedures...................................... 5
Safety Information ................................................ 6-9
Specifications ........................................................ 10
General Information............................................... 11
Components .......................................................... 12
Basic Engine.......................................................... 13
Inspection .............................................................. 14
Operation.......................................................... 15-16
Maintenance..................................................... 17-20
Troubleshooting (Rammer) .................................... 20
Troubleshooting (Engine)....................................... 21
Explanation Of Code In Remarks Column............. 22
Suggested Spare Parts ......................................... 23
Component Drawings
Nameplate And Decal Assembly...................... 24-25
Crankcase And Engine Assembly .................... 26-29
Guide Cylinder Assembly ................................. 30-31
Fuel Tank And Handle Assy.............................. 32-33
Yanmar L40ADRM Diesel Engine
Drawings
Cylinder Block Assembly .................................. 34-35
Cylinder Head And Bonnet Assembly .............. 36-37
Cranshaft, Piston, Camshaft Assembly ............ 38-39
Lubrication Oil Pump, Governor Assembly....... 40-41
Cooling And Starting Assembly........................ 42-43
Fuel Injection Pump Assembly ......................... 44-45
Air Cleaner And Muffler Assembly.................... 46-47
Label And Gasket Assembly .............................48-49
Loose Parts Assembly...................................... 50-51
Terms and Conditions of Sale — Parts ................. 52
NOTICE
Specifications and part numbers are subject to change
without notice.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 5
PARTS ORDERING PROCEDURES
www.multiquip.com
Ordering parts has never been easier!
Choose from three easy options:
WE ACCEPT ALL MAJOR CREDIT CARDS!
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
❒Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓DHL
■Priority One ✓Tr u ck
■Ground
■Next Day
■Second/Third Day
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.
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■View Parts Diagrams
■Order Parts
■Print Specification Information
Note: Discounts Are Subject To Change
Goto www.multiquip.com and click on
Order Parts to log in and save!
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
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)
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Phone: Domestic (US) Dealers Call:
1-800-427-1244
Best Deal!
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
Note: Discounts Are Subject To Change
Effective:
January 1st
, 2006
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.

PAGE 6 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
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.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 7
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.
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.
RAMMER 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.
DO NOT
use this machine on ground that is harder than
the machine can handle, or for driving pilings or tamping
rock beds. Furthermore, use of the machine on sloping
ground, such as the side of an embankment, may make
the machine unstable and can cause an accident. It can
also result in premature machine wear due to uneven
loads on the machine.
Use the machine with confidence for tamping earth and
sand, soil, gravel, and asphalt. DO NOT
use the machine
for other types of jobs.
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.

PAGE 8 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
SAFETY INFORMATION
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.
WARNING

DO NOT place hands or fingers inside engine
compartment when engine is running.

NEVER operate the engine with heat shields or
guards removed.

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 rammer.
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.
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. 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.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — 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 lifting 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.

Never allow any person or animal to stand underneath the
equipment while lifting.
ENVIRONMENTAL SAFETY
NOTICE

Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel filters.

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.

PAGE 10 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
SPECIFICATIONS
Table 1. Rammer Specifications
Overall Height 39.4 in. (1,000 mm)
Overall Width 16.1 in (410 mm)
Over Length 28.3 in (720 mm)
Shoe Size (W x L) 11 in. (285 mm)
Fuel Tank Capacity .871 qal. (3.3 liters).
Lubrication Oil Bath Capacity .85 qt. (.80 liters).
No. of Impacts Per Second 700
Impact Force 3,600 lbs./blow (1,623 kg/blow)
Engine Speed 3,250 ~ 3,300 rpm
Clutch Automatic Centrifugal
Impact Plate Stroke 2 - 3.2 in. (50 - 80 mm)
Operating Weight 176 lbs. (80 kg)
Table 2. Engine Specifications
Model YANMAR L40ADRM
Type Air-Cooled 4 Stroke, Diesel Engine
Piston Displacement 12.14 cu. in. ( 199 cc)
Bore Stroke 2.67 x 2.16 in. (1.68 x 55 mm)
Max. Governed Speed, No Load 3,300 rpm
Output Continuous 3.8 HP (2.8 kW)
Output Maximum 4.2 HP (3.1 kW)
Cooling System Forced Air Cooling By Flywheel Fan
Lubricant for Engine Diesel Engine Lububricating Oil API Classification ""CC"" or ""CD"" Grade
Engine Oil Capacity 0.21 gal. (0.80 liters)
Fuel No. 2 Diesel Fuel
Air Cleaner Wet Type Paper Element Filter
Starting System Recoil Starter with Auto-Return Decompression Device
Dry Weight 56.2 lbs. (25.5 kg.)

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 11
GENERAL INFORMATION
The Multiquip MT76D tamping rammer is a powerful
compacting tool capable of applying a tremendous force
in consecutive impacts to a soil surface. Its applications
include soil compacting for road, embankments and
reservoirs as well as backfilling for gas pipelines, water
pipelines and cable installation work.
The impact force of the MT76D levels and uniformly
compacts voids between soil particles to increase dry
density.
Circular motion is converted to create impact force. The
MTX76D tamping rammer develops a powerful compacting
force at the foot of the rammer. To maintain optimum
performance, proper operation and service are essential.
The MT76D is equipped with an air cooled, four- cycle
Yanmar diesel engine. Transmission of the power takes
place by increasing the engine speed to engage the
centrifugal clutch.
The MT76D uses an oil bath lubrication system. Always
check the oil level through the oil level sight glass at the
rear of the tamper foot.
Before starting the MT76D Tamping Rammer identify and
understand the function of the controls.
CAUTION
Before starting operation check the lifting
handle to:
1. Make sure that there is no damage on the bolts.
2. Make sure that there is no crack or breakage on
handle.
3. Make sure that there is no fissure on the surface.
If there is any abnormality or damage, replace
with new one.
For operation:
This handle is to be used to lift up the shoe part of
the machine with the body laid down on the ground
or truck bed.
1. Use proper lifting techniques to avoid back injury.
This handle is for manual lifting only.
2. Do not use this handle as a rammer lift point. Use
the lifting point on the top of the machine.
3. Do not move the rammer with the lifting handle
and the front rollers more than 16 feet (5 meters).

PAGE 12 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
COMPONENTS
Figure 1. MT76D Major Components
Figure 1 shows the location of the controls and components
for the MT76D Tamping Rammer. The functions of each
control is described below:
1. Fuel Tank/Cap – Remove this cap to add diesel fuel.
Rifill with No. 2 diesel fuel only. Fuel tank capacity is
.871 gallons (3.3 liters)
2. Throttle Lever – Controls engine speed and the
tamping action of the rammer.
3. Handle – To operate rammer, grip handle assembly
firmly on both sides
4. Oil Bath Fill Plug – Open this plug to add oil to the
oil bath reservoir.
5. Oil Level Sight Glass – Indicates the level of oil in the
oil bath reservoir.
6. Drain Valve – Open this valve to remove oil from the
bellows.
7. Foot – Laminated wood with tempered steel plate for
superior shock absorption.
8. Bellows – Reservoir for oil bath.
9. Engine Air Cleaner – Prevents dirt and other debris
from entering the engine.
10. Decompression Lever – Use in the starting of the
engine. Press down on lever to engage. After engine
starts lever will return to original position.
11. Fuel Filter – Located inside fuel tank. Prevents dirt and
debris from entering fuel system.
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.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 13
BASIC ENGINE
The engine (Figure 2) must be checked for proper lubri-
cation and filled with fuel prior to operation. Refer to the
engine manufacturer's manual for detailed operation and
service information.
1. Muffler — Used to reduce noise and emissions. Never
touch muffler when it is hot.
2. Starter Grip — To start engine, pull the starter grip
until resistance is felt, then pull briskly and smoothly.
3. Recoil Starter (pull rope) — Manual-starting method.
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.
4. Engine Oil filter – Prevents dirt and other debris from
entering the engine.
5. Oil Drain Plug — Remove this plug to remove oil from
the engine's crankcase.
6. Dipstick/Oil Filler Cap — Remove this cap to
determine if the engine oil is low. Add oil through this
filler port as recommended in Table 3.
7. Engine Speed Lever — Controls engine speed.
8. Fuel Injection Pump — Pumps fuel to the injector.
Figure 2. Yanmar L40ADRM Diesel Engine

PAGE 14 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
INSPECTION
It is extremely important that this section be read carefully
before attempting to operate the rammer. DO NOT use
your rammer until this section is thoroughly understood.
GENERAL INSPECTION
1. Check all nuts, bolts fasteners for tightness. Retighten
as necessary.
2. Clean any dirt from the recoil starter and foot pedestal.
Wipe the entire unit clean before operating.
3. Replace any missing or damaged Safety Operation
decals.
4. Adjust height of handle. Adjust handle by loosening
nuts and moving handle to suit operation. Retighten
nuts.
CRANKCASE AND SPRING CYLINDER OIL BATH
This unit uses an oil bath lubrication system. Perform the
following:
5. Check the oil level through the oil level sight glass
(Figure 3) at the rear of the tamper foot.
Figure 3. Foot Housing Sight Glass
6. If oil is not visible, add 10W-30 SE, SF or higher grade
motor oil into the oil fill plug opening (Figure 3). The
bath contains approximately 0.85 qt. (0.80 liter).
ENGINE
1. Fill the fuel tank (Figure 4) with No. 2 diesel fuel. At the
same time, check the engine oil and make it a habit to
replenish it often (Figure 5).
NOTICE
The oil level should be kept at the half way point of the
sight glass.
Figure 4. Fuel Tank
Figure 5. Engine Oil Dipstick
2. Low levels of oil may result in engine seizure due to
high levels of consumption during operation.
3. Check the engine oil level and if the engine oil level is
low, it should be refilled. Use the proper motor oil as
suggested in the Table 3 below.
WARNING
Adding fuel to the tank should be
accomplished 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.
Table 3. 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

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 15
OPERATION
INITIAL STARTUP
When starting the MT76D Tamping Rammer perform the
following:
1. The throttle lever is used only at three positions (stop,
idle and operation). When moving the lever from the
stop to idle position, press button on lever at same
time lever is moved.
2. Move the throttle lever (Figure 6) to the idle position.
Figure 6. Throttle Lever (Idle Position)
CAUTION
Failure to understand the operation of the Tamping
Rammer could result in severe damage to the unit or
personal injury.
NOTICE
In cold weather, the engine should be started at the
operation position or between the idle and operation
position on the throttle lever. Use caution as higher
engine RPM may engage clutch, when engine starts.
Return throttle lever from starting position to idle
position when engine starts
3. Grip the recoil starter handle (Figure 7) and pull it until
you feel a slight resistance.
Figure 7. Recoil Starter
4. Press the decompression lever (Figure 8) to release
decompression. The decompression lever will return
automatically when the recoil starter is pulled.
Figure 8. Decompression Lever
NOTICE
DO NOT pull the starter rope all the way to the end
and do not let the starter rope snap back as damage
may result.

PAGE 16 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
OPERATION
5. Return the recoil starter, and pull the handle sharply
and quickly. Warm up the engine by running at low
speed for three to five minutes, while checking for fuel
leakage or abnormal sounds.
6. Repeat steps 1 thru 5.
7. If the engine does not start after repeated attempts,
check the fuel injection system.
OPERATION
1. To start the rammer tamping action, move the throttle
lever (Figure 9) quickly from IDLE to the OPERATION
position. DO NOT move the throttle lever slowly as this
may cause damage to the clutch or spring.
Figure 9. Throttle Lever (Start Position)
2. The MT76D tamping rammer is designed to run at
3,250 to 3,300 rpm. At optimum rpm the foot hits at
a rate of 700 impacts per minute. Increasing throttle
speed past factory set rpm does not increase impacts
and may damage unit.
CAUTION
Make sure that the throttle lever is moved to the
OPERATION position. Operating the rammer at less
than full speed can result in damage to the clutch
springs or foot.
3. The MT76D is designed to advance while tamping. For
faster advance, pull back slightly on the handle so that
the rear of the foot contacts the soil first
4. The rammer can be warmed by quickly moving the
throttle lever from the OPERATION to the IDLE position
several times until the rammer operates smoothly.
5. To stop tamping, quickly move the throttle lever from
the OPERATION to IDLE position. Do not move the
lever slowly as irregular action and damage may resul
STOPPING THE ENGINE
1. Move throttle lever quickly from the OPERATION to
IDLE position while pressing the throttle lever button.
2. Run the engine for three minutes at low speed.
3. After the engine cools, move throttle lever quickly from
IDLE to STOP (Figure 10) while pressing the throttle
lever button.
Figure 10. Throttle Lever (Stop Position)
NOTICE
Following the procedure below will prevent improper
cylinder lubrication caused by a overheated engine.

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 17
MAINTENANCE
DAILY
Thoroughly remove dirt and oil from the engine and
control area.
Clean or replace the air cleaner elements as necessary.
Check and retighten all fasteners as necessary.
Check the spring box and bellows for oil leaks. Repair
or replace as needed.
FUEL FILTER (EVERY 50 HOURS)
1. Remove fuel hose from outlet port on fuel filter. Drain
fuel into a suitable container.
2. Remove fuel filter mounting hardware (Figure 11) from
the fuel tank.
Figure 11. Removing Fuel Filter
3. Next, remove fuel filter from fuel tank (Figure 11).
4. Remove the fuel tank cap and inspect for dirt inside
the fuel tank. If dirty, clean fuel tank.
5. Replace fuel filter and o-ring.
6. Reinstall fuel filter and o-ring back into fuel tank.Secure
fuel filter with mounting hardware.
7. Reconnect fuel hose to fuel filter outlet port.
NOTICE
Replace fuel lines every 2 years even if there is no
visible damage.
FUEL STRAINER (EVERY 50 HOURS)
1. Thoroughly clean the area around the fuel cap.
2. Remove the fuel cap from the fuel tank.
3. Next, remove, inspect and clean the fuel strainer
(Figure 12) with solvent.
Figure 12. Fuel Strainer Removal
4. Reinstall fuel strainer and fuel cap.
REPLACEMENT OIL BATH LUBRICANT
1. Remove the drain plug at the rear of tamper foot and
drain the dirty oil. Refill with clean oil to the middle of
the sight glass.
Figure 13. Draining Oil Bath Lubricant
2. Remove the oil drain plug on foot housing (Figure 13)
and drain the oil. Refill with approximately 0.85 qt. (0.80
litesr) of 10W-30 SE, SF or higher grade motor oil. Oil
should be midway in sight glass. Break in oil should
be changed after first 50 hours of operation.
3. Second oil change and/or later, every 200 hours of
operation.

PAGE 18 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
ENGINE OIL REPLACEMENT
1. Remove oil guage/dipstick from its holder.
2. Using a wrench remove the engine oil drain plug
(Figure 14) and let oil drain into a suitable container.
Always drain engine oil while it is warm.
Figure 14. Draining Engine Oil
3. Reinstall oil drain plug and fill with recommended type
oil as listed in Table 2. DO NOT overfill.
4. Break in oil should be changed after first 20 hours
of operation.
5. Second oil change and/or later, every 100 hours of
operation.
ENGINE OIL FILTER REPLACEMENT
1. Remove and replace the engine oil filter and o-ring
(Figure 15) every 1,000 hours of operation.
Figure 15. Engine Oil Filter
ENGINE AIR CLEANER
Foam Element
2. Release the retaining latches (Figure 16) on both sides
of the air cleaner upper body (cover).
3. Next, remove the foam filter element and paper element
from the air cleaner lower body.
Figure 16. Engine Air Cleaner
DANGER
DO NOT use gasoline as a cleaning
solvent, the possibility exists of fire or
explosion which can cause damage to
the equipment and severe bodily harm or
even DEATH!
NOTICE
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result. This can
lead to a loss of power, excessive carbon buildup in
the combustion chamber and high fuel consumption.
Change air cleaner more frequently if these conditions
exist.
NOTICE
Operating the engine with loose or damaged air cleaner
components could allow unfiltered air into the engine
causing premature wear and failure.
BODY
(UPPER) LATCH
BODY
(LOWER)
FOAM
ELEMENT
PAPER
ELEMENT
MAINTENANCE

MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16) — PAGE 19
MAINTENANCE
4. Clean foam element (Figure 17) in warm, soapy water
or non-flammable solvent. Rinse and dry thoroughly.
5. Next, dip the element in clean engine oil and completely
squeeze out the excess oil from the element before
installing.
Figure 17. Cleaning Foam Element
Paper Air Filter Element
1. Check the paper element daily or before starting the
engine
2. Check for and correct heavy buildup of dirt and debris
along with loose or damaged components.
3. To clean the paper air filter element as referenced in
(Figure 18), tap the filter element several times on a
hard surface to remove dirt, or blow compressed air
(not to exceed 30 psi (207 kPa, 2.1 kgf/cm2) through
the filter element from the inside out.
SOLVENT
ENGINE OIL
FOAM
ELEMENT
SQUEEZE
THOROUGHLY
CAUTION
Wear protective equipment such as
approved safety glasses or face shields
and dust masks or respirators when
cleaning air filters with compressed air.
NOTICE
DO NOT use excessive air pressure or the paper
air filter element will be damaged and will need to be
replaced.
Figure 18. Cleaning Paper Element
TRANSPORTATION
Maintain upright position of rammer at all times. Transport
rammer in upright position. If rammer must be laid down
for transportation, drain the diesel fuel first and lay rammer
with muffler side down (Figure 19).
Figure 19. Transporting Rammer
The fuel filter is installed at the bottom of fuel tank. Should
the rammer be laid on its side, dirt from the fuel filter may
contaminate the injection nozzle, causing damage to the
fuel pump.
PAPER
ELEMENT
BLOW COMPRESSED
AIR FROM THE
INSIDE OUT

PAGE 20 — MT76D RAMMER • OPERATION AND PARTS MANUAL — REV. #7 (07/14/16)
LONG TERM STORAGE
Place the throttle lever in the STOP position.
Drain the fuel tank completely, including fuel lines or add
STA-BIL to the fuel,
Replace lubrication fresh oil.
Cover the air intake on the air cleaner and the exhaust
outlet on the muffler.
Clean exterior of rammer with an oil moistened cloth.
Store rammer indoors covered with plastic sheet in
moisture free and dust free location out of direct sunlight.
MAINTENANCE/TROUBLESHOOTING
Troubleshooting (Rammer)
Symptom Possible Problem Solution
Engine runs but rammer jumps
erratically or not at all.
Operating speed of throttle lever is
incorrectly set? Set throttle lever to correct position.
Oil in excess? Drain excess oil. Bring to correct level.
Clutch slips? Replace or adjust clutch.
Spring Failure? Replace spiral spring.
Speed of engine improper? Adjust engine speed to correct
operating RPM setting.
Soil over-compacted? Shut down machine and test soil.