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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 flames, or other sources of 
ignition near the area while adding fuel or operating the unit. 
Never fill 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 filling 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 influence 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.

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Summary of Contents for YC0850

Page 1: ...Manual FOR YOUR SAFETY READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE MODEL NUMBER YC0850 SERIAL NUMBER PURCHASE DATE Both model number and serial number may be found on the main label...

Page 2: ...tdoors 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...

Page 3: ...or emit chemicals known to the state of California to cause cancer and birth defects or other reproductive harm MODEL AND SERIAL NUMBERS Record the model and serial number as well as date and place o...

Page 4: ...favorite social media site Model Number YC0850 Engine YARDMAX Displacement 79 cc Start Type Recoil Compaction Force 1850 lbs Blows per Minute 5900 Plate Depth 12 5 Plate Width 20 Travel Speed ft per...

Page 5: ...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...

Page 6: ...gine and allow it to cool before filling 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 lea...

Page 7: ...ity 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 sto...

Page 8: ...d Optional sold separately 5 Clamp Plate Optional sold separately 6 Air Filter 7 Operator s Manual Engine Manual 8 Tools for Spark Plug Assembly 9 Hardware Kit Including TOUCH UP PAINT OPTIONAL SOLD S...

Page 9: ...them together with screw See Figure 2c 2 Mount the handle as shown Slide the handle ends into the engine deck slots See Figure 3b Secure with the flat washers nuts and bolts found in packet 1 of the h...

Page 10: ...e Plate Paving Pad and Clamp Plates and secure it with the bolts and washers found in Hardware Kit Packet 3 See Figure 5 Figure 4b Figure 5 Wheel Axle Couple M10 30 2 YC0850 M10 30 2 Paving Pad Clamp...

Page 11: ...AND CONTROLS Throttle Control Lever Oil Drain Hose Exciter Choke Lever Muffler Engine ON OFF Switch Recoil Starter Upper Handle Fuel Tank Base Plate Lower Handle Belt Guard 10 Plate Compactor Operator...

Page 12: ...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 DRAI...

Page 13: ...n ON OFF 3 Reinstall the fuel cap and tighten Always clean up spilled fuel OPERATION 1 Make sure the compactor is on a flat level surface 3 Using a funnel add oil up to the FULL mark on the dipstick T...

Page 14: ...extremely hard dry compacted surfaces The plate will jump rather than vibrate and could damage both plate and engine 4 Pull the recoil starter until engine compression has become difficult to pull Le...

Page 15: ...not do a good job if the bottom surface is not smooth and clean 6 Replace spark plug wire CHECKING V BELT S To ensure optimum power transmission from the engine to the eccentric shaft the V belt s mus...

Page 16: ...ff 6 Slip the old V belt off the pulleys and install the new one in their place When adjusting the belt make sure that the clutch pulley is in alignment with exciter pulley 3 Tighten the engine mount...

Page 17: ...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 When adjusting the belt...

Page 18: ...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...

Page 19: ...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 S...

Page 20: ...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...

Page 21: ...PARTS DIAGRAM YC0850 20 Plate Compactor Operator s Manual Parts Diagram...

Page 22: ...6 22 3 1 32 Lock Washer 6 2 33 Bolt M6 25 w glue 1 34 V Belt 1 35 Belt Guard 1 No Description QTY 36 Bolt M8 20 w glue 3 37 Nut M8 4 38 Flat Washer 8 5 39 Bolt M8 16 1 40 Limited Block 1 41 Handle Sho...

Page 23: ...No Description QTY 1 Paving Pad 1 2 Clamp Plate 1 3 LockWasher10 2 4 Bolt M10 30 2 5 Nut M10 2 Optional Paving Pad Kit YCP320 22 Plate Compactor Operator s Manual Parts List...

Page 24: ...Tame the Great Outdoors TM 1850 W Winchester Rd Suite 106 Libertyville IL 60048 844 YARDMAX 844 927 3629 info yardmax com yardmax com...

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