YARDMAX YC1160 User manual

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Plate Compactors
Operator’s Manual
FOR YOUR SAFETY
READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE
MODEL NUMBER
YC1160
YC1390
SERIAL NUMBER
PURCHASE DATE
Both model number and serial
number may be found on the
main label (see Page 2, Figure 1a
& Figure 1b). You should record
both of them in a safe place for
future use.
Tame the Great Outdoors®

Introduction 1
Specications 3
Symbols 4
Safety 4
Contents Supplied 7
Assembly 8
Know Your Machine 10
Operation 11
Maintenance 13
Storage 16
Lifting / Transporting 17
Troubleshooting 18
Parts Diagram 19
TABLE OF CONTENTS
Your new YARDMAX®plate compactor offers quality
construction, and is easy and safe to operate. With
proper use and care, it is designed to give you many years
of dependable service.
Prepare to experience the durability to take on any job
with the ease, portability, and convenience of your new
plate compactor!
Discover the YARDMAX Advantage
At YARDMAX, we understand that land ownership
definitely has its privileges, but it also comes with a
great deal of responsibility. When duty calls and you
need to respond, will you have what it takes to tame the
great outdoors?
When looking for outdoor power equipment (OPE) to get
the job done right, at the right price, YARDMAX delivers
the perfect combination of performance and practicality.
YARDMAX has a solution that’s right for you.
MAX Performance, MAX Value, MAX Support —
that’s YARDMAX
Backed by decades of proven manufacturing expertise
Enhanced design features come standard
Engineered for the best user experience
Quality metal parts are used instead of plastic
A robust warranty supports all products
Budget-friendly prices make it practical
Up for the job? YARDMAX is.
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1YC0850PM01 - 1706
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Introduction

Carefully read through this entire operator's manual
before using your new unit. Pay attention to all
cautions and warnings.
This unit is a gasoline engine driven plate compactor. It
is perfect for creating optimal density for the foundation
of any paving project. It is easy and safe to operate. With
proper use and care, it should give you many years of
dependable service.
ENGINE MANUAL
Please refer to the Engine Manufacturer’s owner/
operator’s manual, packed separately with your unit, for
more information.
EMISSION CONTROL SYSTEM
This equipment or its engine may include exhaust and
evaporative emission control system components
required to meet U.S. Environmental Protection Agency
(EPA) and/or California Air Resources Board (CARB)
regulations. Tampering with emission controls and
components by unauthorized personnel may result
in severe fines or penalties. Emission controls and
components can only be adjusted by an authorized
engine manufacturer's service center.
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust, some of its constituents and certain
product components contain or emit chemicals known to
the state of California to cause cancer and birth defects
or other reproductive harm. For more information, go to
www.P65Warnings.ca.gov.
MODEL AND SERIAL NUMBERS
Record the model and serial number as well as date
and place of purchase for future reference. Have this
information available when ordering parts, optional
accessories and when making technical or warranty
inquiries.
ENVIRONMENTAL
Recycle unwanted materials instead of disposing of
them as waste. All tools, hoses, and packaging should
be taken to the local recycling center and disposed of
in an environmentally safe way.
DISCLAIMER
YARDMAX reserves the right to discontinue, change,
and improve its products at any time without notice
or obligation to the purchaser. The descriptions and
specications contained in this manual were in effect at
printing. Equipment described within this manual may be
optional. Some illustrations may not be applicable to your
unit.
YC1160
Engine Displacement:
Plate Size:
Compacting Force:
Vibration Frequency:
Travel Speed:
Operation Weight:
Manufacture Date:
11~201~10
2015 2016 2017
1 2 3 4 5 6
7 8 9 10 11 12
21~30
Manufactured in China
196 cc
21” × 14 1/2”
2500 lbs
5500 vpm
83 ft./min
128 lbs
Plate Compactor
Model Number
Serial Number 1160100010117
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YC0850PM01 - 1706 Introduction
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Figure 1b
Figure 1a

SPECIFICATIONS
SUPPORT
Have questions about your YARDMAX equipment?
Call us at 844-YARDMAX, email us at
[email protected], or contact us via your
favorite social media site.
Model Number YC1160 YC1390
Engine YARDMAX Briggs & Stratton
Displacement 196 cc 208cc
Start Type Recoil Recoil
Compaction Force 2500 lbs 3000 lbs
Blows per Minute 5500 5500
Plate Depth 14.5" 16.5"
Plate Width 21" 21"
Travel Speed (ft per minute) 75 50
Wheels Fold-up transport wheels always attached to the vibrator for anytime use.
Operation Weight 135 lbs 185 lbs
3YC0850PM01 - 1706
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Introduction & Specications

SYMBOLS
The rating plate on your machine may show symbols. These represent important information about the product or instructions on its use.
SAFETY
GENERAL SAFETY RULES
UNDERSTAND YOUR MACHINE
Read this manual and labels afxed to the machine to understand
its limitations and potential hazards.
Be thoroughly familiar with the controls and their proper
operation. Know how to stop the machine and disengage the
controls quickly.
Make sure to read and understand all the instructions and safety
precautions as outlined in the Engine Manufacturer’s manual
packed separately with your unit. Do not attempt to operate the
machine until you fully understand how to properly operate and
maintain the engine and how to avoid accidental injuries and/or
property damage.
If the unit is to be used by someone other than original purchaser
or loaned, rented, or sold, always provide this manual and any
needed safety training before operation. The user can prevent
and is responsible for accidents or injuries that may occur to
themselves, other people, and property.
Do not force the machine. Use the correct machine for your
application. The correct machine will do the job more efciently
and safer at the rate it was designed.
Read these instructions carefully.
Wear eye protection.
Wear hearing protection.
Wear protective gloves.
Wear safety footwear.
Do not remove or tamper with the
protection and safety devices.
No smoking, sparks, or ames.
Keep your hands clear from all rotating
parts.
Do not touch parts that are hot from
operation. Serious burns may result.
Keep children and bystanders off and
away.
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Regularly check to see that keys and adjusting wrenches are
removed from the machine area before starting it. A wrench or
a key that is left attached to a rotating part of the machine may
result in personal injury.
Avoid accidental starting. Be sure the engine’s switch is off before
transporting the machine or performing any maintenance or
service on the unit. Transporting or performing maintenance or
service on a machine with its switch on invites accidents.
If the machine should start to vibrate abnormally, stop the
engine (motor) and check immediately for the cause. Vibration is
generally a warning sign of trouble.
ENGINE SAFETY
This machine is equipped with an internal combustion engine.
Do not use on or near any unimproved, forest covered, or brush
covered land unless the exhaust system is equipped with a spark
arrester meeting applicable local, state, or federal laws.
In the state of California, a spark arrester is required by law.
Other states have similar laws. A spark arrester, if used, must be
maintained in effective working order by the operator.
Never start or run the engine inside a closed area. The exhaust
fumes are dangerous, containing carbon monoxide, an odorless
and deadly gas. Operate this unit only in a well-ventilated
outdoor area.
Do not tamper with the engine to run it at excessive speeds. The
maximum engine speed is preset by the manufacturer and is
within safety limits. See engine manual.
Keep a Class B fire extinguisher on hand when operating this
plate compactor in dry areas as a precautionary measure.
FUEL SAFETY
Fuel is highly flammable, and its vapors can explode if ignited.
Take precautions when using to reduce the chance of serious
personal injury.
When refilling or draining the fuel tank, use an approved fuel
storage container while in a clean, well-ventilated outdoor area.
Do not smoke, or allow sparks, open ames, or other sources of
ignition near the area while adding fuel or operating the unit.
Never ll the fuel tank indoors.
Keep grounded conductive objects, such as tools, away from
exposed, live electrical parts and connections to avoid sparking or
arcing. These events could ignite fumes or vapors.
Always stop the engine and allow it to cool before lling the fuel
tank. Never remove the cap of the fuel tank or add fuel while the
engine is running or when the engine is hot. Do not operate the
machine with known leaks in the fuel system.
PERSONAL SAFETY
Do not permit children to operate this machine at any time.
Keep children, pets, and other people not using the unit away
from the work area. Be alert and shut off unit if anyone enters
work area. Keep children under the watchful care of a responsible
adult.
Do not operate the machine while under the inuence of drugs,
alcohol, or any medication that could affect your ability to use it
properly.
Dress properly. Wear heavy long pants, boots, and gloves. Do not
wear loose clothing, short pants, or jewelry of any kind. Secure
long hair so it is above shoulder level. Keep your hair, clothing,
and gloves away from moving parts. Loose clothes, jewelry, or
long hair can be caught in moving parts.
Protect eyes, face, and head from objects that may be thrown
from the unit. Always wear safety goggles or safety glasses with
side shields when operating.
Wear appropriate hearing protection.
Always keep hands and feet away from all moving parts during
operation. Moving parts can cut or crush body parts.
Always keep hands and feet away from all pinch points.
Do not touch parts that might be hot from operation. Allow parts to
cool before attempting to maintain, adjust, or service.
Stay alert, watch what you are doing, and use common sense
when operating the machine.
Do not overreach. Do not operate the machine while barefoot
or when wearing sandals or similar lightweight footwear. Wear
protective footwear that will protect your feet and improve
your footing on slippery surfaces. Keep proper footing and
balance at all times. This enables better control of the machine in
unexpected situations.
INSPECT YOUR MACHINE
Check your machine before starting it. Keep guards in place and
in working order. Make sure all nuts, bolts, etc., are securely
tightened.
Never operate the machine when it is in need of repair or is in
poor mechanical condition. Replace damaged, missing, or failed
parts before using it. Check for fuel leaks. Keep the machine in
safe working condition.
Do not use the machine if the engine’s switch does not turn it on
or off. Any gasoline powered machine that can’t be controlled
with the engine switch is dangerous and must be replaced.
5YC0850PM01 - 1706
|
Safety

Loosen the fuel tank cap slowly to relieve any pressure in the tank.
Never overfill the fuel tank. Fill the tank to no more than 1/2”
below the bottom of the ller neck to provide space for expansion
as the heat of the engine can cause fuel to expand.
Replace all fuel tank and container caps securely and wipe up spilled
fuel. Never operate the unit without the fuel cap securely in place.
Avoid creating a source of ignition for spilled fuel. If fuel is spilled,
do not attempt to start the engine but move the machine away
from the area of spillage and avoid creating any source of ignition
until fuel vapors have dissipated.
When fuel is spilled on yourself or your clothes, wash your skin
and change clothes immediately.
Store fuel in containers specifically designed and approved for
this purpose.
Store fuel in a cool, well-ventilated area, safely away from sparks,
open ames, or other sources of ignition.
Never store fuel or a machine with fuel in the tank inside a
building where fumes may reach a spark, open ame, or any other
source of ignition, such as a water heater, furnace, or clothes
dryer. Allow the engine to cool before storing in any enclosure.
To avoid injury, keep hands, ngers and feet away from the base
plate. Grip the handle of the plate compactor firmly with both
hands. If both hands are holding the handle and your feet are
clear of the compactor base, your hands, ngers and feet can not
be injured by the compactor base.
Always operate the machine from behind. Never pass or stand in
front of the machine when the engine is running.
Never place tools or any other item under the plate compactor.
If the unit strikes a foreign object, stop the engine, disconnect the
spark plug, thoroughly inspect the machine for any damage, and
repair the damage before restarting and operating the machine.
Do not overload the machine capacity by compacting too deep in
a single pass or at too fast a rate.
Never leave the operating position or leave the plate compactor
unattended when the engine is running.
SPECIFIC SAFETY RULES
Always stop the engine when compacting is delayed or when
walking from one location to another.
Stay away from the edged of ditches and avoid actions that may
cause the plate compactor to topple over.
Always ascend slopes carefully and in a direct path, with the plate
compactor below the operator to prevent the plate compactor
from toppling over onto the operator.
Always park the machine on a level surface and turn the engine
off when not in immediate use.
To reduce exposure to vibration, limit the hours of operation
and take periodic breaks to minimize repetition. Reduce the
speed and force in which you do the repetitive movement. Try
to balance days using the compactor with days where operating
hand-held power equipment is not required.
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Your YARDMAX plate compactor comes partially assembled and contains the following:
CONTENTS SUPPLIED
1. Main Machine
2. Folding Wheels Kit
3. Handle
4. Paving Pad (Optional-sold separately)
5. Clamp Plate (Optional-sold separately)
6. Operator’s Manual & Engine Manual
7. Tank Cap (YC1390 Only)
8. Tools for Spark Plug Assembly
OPTIONAL-SOLD SEPARATELY
HARDWARE KITOPTIONAL-SOLD SEPARATELY
9
2 31
4
5
6
8
7
9. Hardware Kit, Including
7YC0850PM01 - 1706
|
Contents Supplied
M5 × 1 1
M10 × 70 × 2
M10 × 30 × 2 2
M10 × 20 × 3 YC1160
M10 × 25 × 3 YC1390

M5 × 1 1
M10 × 70 × 2
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YC0850PM01 - 1706
This plate compactor was partially assembled at the factory. To assemble your machine follow the below instructions.
ASSEMBLY
HANDLE
FOLDING WHEELS KIT
1. Unfold the handle. (See Figure 2a)
1. Line up the holes in the link plates and engine deck. Secure the
wheels using the nuts, washers, and bolts found in hardware
packet #2. Do not overtighten the bolts, leave the wheel
assembly so that it can be released with ease. (See Figure 3a)
2. Mount the handle as shown. Slide the handle ends into the
engine deck slots. (See Figure 2b). Secure with the at washers,
nuts and bolts found in packet #1 of the hardware kit.
3. Unwrap the throttle cable from around the top of the engine.
4. Unscrew bolt 5×35 from throttle control. Secure the throttle
control onto the upper handle with a at washer 5 and the bolt
5×35 that just were unscrewed. (See Figure 2c, illustration 1 & 2)
5. Fasten the throttle control cable with cable fasteners.
Figure 2a
Figure 2b
Figure 2c
Figure 3a
M10 × 30 × 2 2
1 2 M5 (×1)
M10 × 70 (×2)
Lower Handle
1 2 M5 (×1)
M10 × 70 (×2)
Lower Handle
Mounting Holes
M10 × 30 (×2)
Upper Handle
16 mm
15 mm
16 mm
15 mm
17 mm
18 mm
30 mm
13 mm
11 mm
16 mm
15 mm

Rubber Plug
Tank Cap
9YC0850PM01 - 1706
|
Assembly
Wheel Axle Couple
M10 × 20 / M10 × 25 (×3)
Base Plate
Paving Pad
Clamp Plate
2. Before compacting, fold up the Wheel Kit. (See Figure 3b)PAVING PAD KIT (OPTIONAL-SOLD SEPARATELY)
FUEL TANK CAP (YC1390 ONLY)
The Paving Pad is for use on decorative and delicate surfaces
like pavers, stone, and block. It prevents scuffs, scrapes, and
cracking of the stones while using the unit, and also will help
reduce operating noise.
Attach the Paving Pad onto the Base Plate as shown. Align
the holes in the Base Plate, Paving Pad and Clamp Plates, and
secure it with the bolts and washers found in Hardware Kit
Packet #3. (See Figure 5)
For YC1390, the last step is to remove the rubber cap used for
shipping from the gas tank. Then screw the tank cap (found in your
manual bag) into place. (See Figure 4a & Figure 4b)
Figure 3b
Figure 5
Figure 4b
Figure 4a
M10 × 20 × 3 YC1160
M10 × 25 × 3 YC1390
17 mm
18 mm
30 mm
13 mm
11 mm

KNOW YOUR MACHINE
FEATURES AND CONTROLS
Upper Handle
Oil Drain Hose
Exciter
Throttle Control Lever
Air Cleaner
Lower Handle
Fuel Tank
Base Plate
Mufer
Belt Guard
Recoil Starter Handle
Engine ON/OFF Switch
Choke Control
Fuel Shut-Off Valve
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Never use choke to stop engine.
ENGINE ON/OFF SWITCH
The engine switch has two positions. OFF - engine will
not start or run. ON - engine will start and run.
RECOIL STARTER HANDLE
The recoil starter handle is used to pull-start the engine.
FUEL SHUT-OFF VALVE
The fuel shut – off has two position. CLOSED ( ) -
use this position to service, transport, or store the unit.
OPEN ( ) - use this position to run the unit.
THROTTLE CONTROL
The throttle control regulates the speed of the engine
and will shut off the engine when it is moved to the
STOP position. The throttle control moves between
FAST , SLOW , and STOP positions.
CHOKE CONTROL
The choke control is used to choke the carburetor and
assist in starting the engine. The choke control slides
between the CHOKE CLOSED and CHOKE OPEN
positions.
OIL DRAIN HOSE
Running the engine with dirty oil can cause premature
engine wear and failure. Changing oil regularly is extremely
important. The exible oil drain hose is equipped to drain
oil into appropriate receptacle. (See Figure 6)
EXCITER
An eccentric weight mounted on the exciter shaft
contained within exciter housing is driven at high
speed by a clutch and belt drive system. This high
speed shaft revolution causes the rapid lifting and
downward ramming motion of the machine as well as
imparting a forward motion.
OPERATION
1. Make sure the compactor is on a at, level surface.
3. Using a funnel, add oil up to the FULL mark on the dipstick.
Gasoline is highly ammable and explosive. You can
be burned or seriously injured when handling fuel.
Use extreme care when handling gasoline.
Fill the fuel tank outdoors, never indoors. Gasoline
vapors can ignite if they collect inside an enclosure.
Explosion can result.
DO NOT OVERFILL. Check engine oil level daily and
add as needed.
The engine is shipped without oil. Do not start the
engine before adding oil.
ADD GASOLINE TO ENGINE
ADD OIL TO ENGINE
2. Remove the oil ll cap/dipstick
to add oil.
CLOSEDOPEN
2
1
Locking Nut
Oil Drain Hose
See engine manual for oil capacity, oil recommendation,
and location of ll cap.
11 YC0850PM01 - 1706
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Know Your Machine & Operation
Figure 6

IMPORTANT: DO NOT OVERFILL!
This equipment and/or its engine may include
evaporative emissions control system components,
required to meet EPA and/or CARB regulations, that
will only function properly when the fuel tank has
been filled to the recommended level. Overfilling
may cause permanent damage to evaporative
emissions control system components. Filling to the
recommended level ensures a vapor gap required to
allow for fuel expansion. Pay close attention while
lling the fuel tank to ensure that the recommended
fuel level inside the tank is not exceeded. Use a
portable gasoline container with an appropriately
sized dispensing spout when lling the tank. Do not
use a funnel or other device that obstructs the view
of the tank lling process.
If the engine is hot,
closing the choke is not
necessary.
STARTING ENGINE
1. Move the engine switch to the
ON position.
2. Open the fuel shut-off valve.
3. Move the choke lever to the
CLOSED position.
SLOWFAST
OPENCLOSED
ONOFF
ONOFF
3. Reinstall the fuel cap and tighten. Always clean up spilled fuel.
1. The engine must be off and allowed to cool at least two minutes
before adding fuel.
2. Remove the fuel ller cap and ll the tank. (See engine manual
for fuel capacity, fuel recommendation, and location of fuel
cap.)
Rapid retraction of the starter cord (kickback) will pull
your hand and arm toward the engine faster than you
can let go. Broken bones, fractures, bruises, or sprains
could result.
Do not operate plate on concrete or on extremely
hard, dry, compacted surfaces. The plate will jump
rather than vibrate and could damage both plate and
engine.
5. Pull the recoil starter until engine compression has become
difcult to pull. Let the recoil return to the home position,
then pull quickly to start the engine. Repeat steps as needed.
Fully open the choke and set the throttle to the FAST position,
before operating the unit.
1. After engine warms up, pull throttle lever to accelerate engine
speed. Plate will begin vibrating and move forward.
2. The plate compactor is designed to run at an engine speed
(engine take off shaft) of 3600 rpm (Normally considered
full throttle). Running the engine at lower rpm will result in a
decrease of compaction force and lower travel speed. It will
create excessive “out-of-sync” vibrations resulting in poor
compaction, maneuverability, excessive wear to the machine,
and discomfort to the operator.
3. In operation, guide the machine, but let the compactor do the
work. Bearing down on the handle is unnecessary and causes
shock absorber wear.
4. On level surfaces the compactor moves forward rapidly. On
uneven surfaces or inclines, light forward pressure on handle
may be required to assist the compactor in moving forward.
5. The number of passes required to reach a desired compaction
level will depend on the soil type and on the soil’s moisture
content. Maximum soil compaction has been reached when
excessive kickback is noticed.
When using plate on paving stones, attach a pad to the
bottom of the plate to prevent chipping or grinding
surface of the stones. A special urethane pad designed
for this purpose is available as an optional accessory.
4. Movethethrottle leverslightly
to the FAST speed.
OPERATING
L H
Throttle Lever
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While a certain amount of moisture in the soil is
necessary, excessive moisture may cause soil particles
to stick together and prevent good compaction. If
soil is extremely wet, allow it to dry somewhat before
compacting.
If soil is so dry as to create dust clouds while operating
plate, some moisture should be added to the ground
material to improve compacting. This will also reduce
service to the air lter.
IDLE SPEED
Set the throttle control lever to the SLOW position to reduce
stress on the engine when compacting is not being performed.
Lowering the engine speed will help extend the life of the engine,
as well as conserve fuel and reduce noise level.
STOP ENGINE
To stop the engine in an emergency, simply turn the engine switch
to the OFF position. Under normal conditions, use the following
procedure:
Do not move the choke control to CLOSE to stop the
engine. Backre or engine damage may occur.
Do not disengage the belt drive with the machine
running. This will cause friction and vibration on the
belt drive.
Sudden stopping at a high speed under a heavy load
is not recommended. Engine damage may result.
Never use a “pressure washer” to clean your plate
compactor. Water can penetrate tight areas of the
unit and cause damage to spindles, pulleys, bearings,
or the engine. The use of pressure washers will result
in shortened life and reduce serviceability.
MAINTENANCE
Maintaining your compactor will insure long life to the machine
and its components.
PREVENTIVE MAINTENANCE
1. Turn off engine. Engine must be cool.
2. Keep the engine's throttle lever in its SLOW position, and
remove spark plug wire from spark plug and secure.
3. Inspect the general condition of the plate compactor. Check
for loose screws, misalignment or binding of moving parts,
cracked or broken parts, and any other condition that may
affect its safe operation.
4. Remove all debris from the plate compactor with a soft brush,
vacuum, or compressed air. Then use a premium quality
lightweight machine oil to lubricate all moving parts.
5. Clean the bottom of the compactor base as soon as it begins to
pick up soil being compacted. The unit can not do a good job if
the bottom surface is not smooth and clean.
CHECKING V-BELT(S)
To ensure optimum power transmission from the engine to the
eccentric shaft, the V-belt(s) must be in good condition and
operate under proper tension.
1. Turn off engine. Engine must be cool.
2. Remove the belt guard to access the V-belt(s). (See Figure 7a)
1. Move the throttle lever to the SLOW ( ) position.
2. Let the engine idle for one or two minutes.
3. Turn the engine switch to the OFF position.
4. Turn the fuel valve lever to the OFF ( ) position.
6. Replace spark plug wire.
13 YC0850PM01 - 1706
|
Operation & Maintenance

On new machines or after installing a new belt, check
belt tension after first 20 hours of operation. Check
and adjust belt every 50 hours thereafter.
3. Check the condition of the V-belt(s). If any V-belt is cracked,
frayed, or glazed, it should be replaced as soon as convenient.
4. Check the V-belt tension by squeezing them in the center.
The normal deection on each side should be 3/8"(9mm) to
1/2"(13mm) with moderate pressure from your thumb or
nger. (See Figure 7b)
TENSIONING V-BELT(S)
Proper belt tension is critical to good performance.
Proper adjustment will assure long belt life. Too much or too little
belt tension will cause premature belt failure.
1. Loosen 4 engine mount bolts (do not remove) only enough to
move the engine forward. (See Figure 8a & Figure 8b)
Figure 7a
Figure 7b
3/8”
Engine Mount Bolt (×2)
Engine Mount Bolt (×2)
When adjusting the belt(s), make sure that the clutch
pulley is in alignment with exciter pulley.
2. Loosen the jam nuts B, leaving enough space between the nut
and bracket.
3. Push engine toward the back of the plate by turning the
adjustment bolts A to remove any slack in V-belt(s).
4. When the V-belt tension is correct, tighten the jam nuts B
against the bracket. (See Figure 8c & Figure 8d)
Figure 8a
Figure 8b
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10mm
13mm
17 mm
18 mm
30 mm
13 mm
11 mm
17 mm
18 mm
30 mm
13 mm
11 mm

REPLACING V-BELT(S)
Both V-belts should be replaced at the same time
because they will wear evenly through normal use.
Work on one belt at a time.
1. Turn off engine. Engine must be cool.
2. Remove the belt guard to access the V-belts. (See Figure 7a)
3. Refer to the belt tension adjustment steps. If the adjustment
bolts have no more adjustment left,the belt(s) have to be
replaced.
4. Loosen the jam nuts B, leaving enough space between the nut
and bracket.
5. Push the engine toward the front of plate as far as possible, in
order to loosen the belts enough to slide them off.
EXCITER LUBRICATION
The exciter housing is pre-serviced using Automatic Transmission
Fluid Dextron III, Mercon, EXXON (ESSO) NUTO H-32 or its
equivalent. Change uid after 200 hours of operation.
1. Let exciter cool before changing exciter oil.
2. Remove the belt guard and V-belt(s).
3. Remove the bolts that hold the deck to the housing. (See Figure 9a)
4. Lift entire deck with engine from housing.
When adjusting the belt(s), make sure that the clutch
pulley is in alignment with exciter pulley.
When removing or installing the drive belt(s), be
careful not to get your fingers caught between the
belt and pulley.
5. Tighten the engine mount bolts.
6. Attach the belt guard.
V-Belt Clutch PulleyExciter Pulley
Figure 8c
Figure 8d
Figure 9a
6. Slip the old V-belt(s) off the pulleys and install the new ones in
their place.
7. Move the engine back by turning the adjusting bolts A until
reach the right belt tension, Refer to the Figure 7b to check the
belt tension. Then lock the jam nut B.
8. Fasten the four engine mount bolts.
9. Attach the belt guard.
LOOSEN TIGHTEN
BA
Adjustment
Bolts
Jam
Nuts
15 YC0850PM01 - 1706
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Maintenance
17 mm
18 mm
30 mm
13 mm
11 mm
5 mm
6 mm

5. Remove pipe plug from top of exciter housing. Tilt housing
upside down so oil drains from exciter. Examine oil for metal
chips as a precaution to future problems. (See Figure 9b)
6. Return plate housing to the upright position.
7. Fill the exciter housing with exciter oil. (See Figure 9c)
8. Apply pipe sealant to pipe plug and reinstall into top of exciter
housing.
9. Reinstall deck, V-belt(s) and belt guard.
Do not overfill - overfilling can result in excessive
temperatures in the exciter.
Figure 9c
Figure 9b
Exciter
Exciter Shaft
STORAGE
At the end of the season (or if the plate compactor will not be used
for 30 days or longer), follow the storage instructions below.
1. Run the engine until the fuel lines and carburetor are empty
and it stops due to lack of fuel.
2. Allow the engine to cool.
3. Lubricate the machine as instructed.
4. Clean the exterior of the engine and the plate compactor
thoroughly.
5. Touch up all rusted or chipped paint surfaces; sand affected
areas before painting, and use a rust preventative to prevent
the metal parts from rusting.
6. Tighten all loose screws, bolts, and locknuts. Repair or replace
any damaged parts.
Refer to the Engine Manual for information on
storing your engine.
7. Cover the machine and store it in a clean, dry place out of the
reach of children.
PRECAUTIONS
1. Drain the fuel tank completely. Stored fuel containing ethanol
or MTBE can start to go stale in 30 days. Stale fuel has high
gum content and can clog the carburetor and restrict fuel ow.
2. Start the engine and allow it to run until it stops. This ensures
no fuel is left in the carburetor, and helps prevent deposits
from forming inside the carburetor, which can damage the
engine.
3. While the engine is still warm, drain the oil from the engine.
Rell with fresh oil of the grade recommended in the Engine
Manual.
4. Allow the engine to cool. Remove the spark plug and put 60
ml of SAE-30 of high quality motor oil into the cylinder. Pull
the starter rope slowly to distribute the oil. Replace the spark
plug.
16
Plate Compactor
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Operator’s Manual
YC0850PM01 - 1706 Maintenance & Storage
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YC1160 YC1390
80 ml 100 ml

LIFTING / TRANSPORTING
5. Use clean cloths to clean off the outside of the compactor and
to keep the air vents free of obstructions.
6. Pull up the spring bolt and fold up the wheels bracket. (See
Figure 3b, Page 9)
7. Carefully fold the upper handle down. Do not allow control
cables to become pinched or bent. (See Figure 10)
Machine may fall and cause damage or injury if lifted
incorrectly. Lift using handles at base of plate.
Remove the spark plug and drain all of the oil from
the cylinder before attempting to start the unit after
storage.
Do not use strong detergents or petroleum based
cleaners when cleaning plastic parts. Chemicals can
damage plastics.
Figure 10
Figure 11
See technical data for the weight of the machine.
To avoid burns or re hazards, let engine cool before lifting /
transporting machine or storing indoors.
The unit can be lifted by the handles in front and back of the unit.
(See Figure 11)
The unit must be transported in the upright position to prevent
fuel from spilling. Do not allow the machine to rest on its side or
its top.
Secure or tie down unit using the lifting handle to prevent machine
from sliding or tipping over.
Always shut off engine, remove key, and close fuel shut-
off valve when transporting unit on a truck or trailer.
Do not transport machine while engine is running.
17 YC0850PM01 - 1706
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Storage & Lifting / Transporting

TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start
1. Spark plug wire disconnected
2. Out of fuel or stale fuel
3. Throttle control lever not in
correct starting position
4. Choke not in ON Position
5. Blocked fuel line
6. Fouled spark plug
7. Engine ooding
1. Attach spark plug wire securely to
spark plug
2. Fill with clean, fresh gasoline.
3. Move throttle control lever to start position
4. Throttle must be positioned at choke
for a cold start
5. Clean the fuel line
6. Clean, adjust gap, or replace
7. Wait a few minutes to restart, but do
not prime
Engine runs erratically
1. Spark plug wire loose
2. Unit running on CHOKE
3. Blocked fuel line or stale fuel
4. Vent plugged
5. Water or dirt in fuel system
6. Dirty air cleaner
1. Connect and tighten spark plug wire
2. Move choke lever to OFF
3. Clean fuel line. Fill tank with clean,
fresh gasoline
4. Clear vent
5. Drain fuel tank. Rell with fresh fuel
6. Clean or replace air cleaner
Engine overheats
1. Engine oil level low
2. Dirty air cleaner
3. Air ow restricted
1. Fill crankcase with proper oil
2. Clean air cleaner
3. Remove blower housing and clean
Engine will not stop
when throttle control
is positioned at stop,
or engine speed does
not increase properly
when throttle control
is adjusted
Debris interfering with throttle
linkage Clean dirt and debris
Compactor is difcult
to control when
pounding (machine
jumps or lurches
forward)
Too high engine speed on hard ground Set the throttle lever at lower speed
18
Plate Compactor
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Operator’s Manual
YC0850PM01 - 1706 Troubleshooting
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PARTS DIAGRAM
YC1160
19 YC0850PM01 - 1706
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Parts Diagram