Mikasa MVC Series Plate Compactor Instruction Manual

Mikasa MVC Series Plate Compactor

1. Preface

• This operation manual describes the proper operation, basic inspection and maintenance procedures of the plate compactor. Please read this operation manual before use in order to maximize the excellent performance of this machine and make your work more efficient and effective.
• After reading the manual, please keep it in a handy location for easy reference.
• For the handling the engine, please refer to the separate engine operation manual.
• For inquiries about repair parts, parts lists, service manuals, and repairs, please contact the store where you purchased the product, our sales office, or the Mikasa Parts Service Center. For parts lists, please visit our homepage at: http://www.mikasas.com/ where you can access Mikasa WEB parts lists.
• The illustrations in this manual might slightly differ in part from the machine you actually purchased due to design changes.

Applications, Warnings,

Structure and Power Transmission

Applications
Plate compactor is the machine that compacts the ground and it intends to make the surface smooth, by transmit-ting vibration through vibrating plate, which power generated from single rotor in vibrator case.
This machine is suitable for making the ground surface smooth, such as leveling the soil and beaching, finishing the asphalt paving.
Warning about incorrect applications and techniques
This machine is hard to move forward on a soil with much water (especially clay soil). It is not suitable for such application. This machine is difficult to level a ground include big stones due to insufficient compacting force. Plate compactor is mainly applied for compacting surface smooth and it is not effective for jobs that requires heavy compaction. In case of compacting ground deeply into lower layer, it is recommended to use Tamping Rammer, Vibro Compactor or Vibration Roller of which compacting force is rather effective. Please use this compactor for compacting surface on soil, sediment, beaching and asphalt. It is not recommended for use this machine for the other applications.
Structure
The upper part is made up of Power source, Handle, Belt Cover, Water Tank for sprinkling and Guard Hook which are fixed by Engine Base. The Engine base is fixed on Vibrating Plate by Shock Absorbing Rubber. The lower part is made up of Vibrating Plate and Vibrator Unit that has an Eccentric rotary shaft built in. The power source is transmitted from the centrifugal clutch on engine output shaft to the Eccentric rotary shaft through V-belt.
Power transmission
Air-cooled Single Cylinder Engine is amounted as power source and Centrifugal Clutch is fixed on engine output shaft.
Centrifugal Clutch engages by running up the engine and engine R.P.M. is reduced to suitable number for compacting. The rotation of engine is transmitted from V-pulley integrated with Clutch Drum to Vibrator Pulley through V-belt.
Vibrator Pulley rotates Eccentric Rotor Shaft that is contained in Vibrator Case. The generated vibration created from Eccentric Rotor is transmitted to Vibrating Plate.
Vibration of Vibrating Plate carries the machine forward; the vibration with the weight of the machine makes the compaction of the ground possible.

Warning Symbols

The triangle marks used in this manual and on the decals on the machine are warning symbols. Please follow these precautions.

Warning symbols indicating personnel hazards

DANGER

Extremely hazardous. If the warning is not followed, it is likely to result in serious injury or death.

WARNING

Hazardous. If the warning is not followed, it is likely to result in serious injury or death.

CAUTION

Potential hazard. If the warning is not followed, it may result in injury.

Precautions without mar If the warning is not followed, it may result in property damage

Safety Precautions

General Precautions

WARNING

• Do not operate the machine,
• If you do not feel well due to overwork or illness. If you are taking any medicine.
• If you are under the influence of alcohol.

CAUTION

• Read this manual carefully and handle the machine as described to ensure safe work.
• For details about the engine, refer to the separate manual for the engine.
• Make sure you understand the structure of the machine well.
• For safe work, always wear protective gear (helmets, safety shoes, ear plugs, etc.) and work in appropriate clothes.
• Always check the machine before your work to make sure it is in normal condition.
• Decals on the machine (operation method labels, warning labels, etc.) are very important for your safety. Keep the machine clean so that the decals can be read all the time. Replace a decal if it becomes illegible.
• Before performing maintenance work, be sure to turn the engine off.
• It is very dangerous if children come into close contact with the machine. Have the utmost concern about how and where to store the machine. In particular, for an engine with a cell, always remove the starter key and keep it in a designated place.
• Before inspection and maintenance work, stop the engine, and do your work on a flat surface area. If a cell is attached, remove the battery wiring before your work.
• Mikasa does not accept any responsibility for accidents caused by remodeling or rework done on the machine.

Refueling Precautions

DANGER

• When adding fuel,
• Make sure you work in a well ventilated location.
• Make sure the engine is stopped and wait until it cools down.
• Take the machine to a clear flat location without any combustibles nearby. Be careful not to spill the fuel. Wipe well if any spill occurs.
• Do not fill to the rim due to potential spillage. After adding the fuel, tightly close the tank cap.

Location and Ventilation Precautions

DANGER

• Do not run the machine in an unventilated location, such as indoors or inside a tunnel. The exhaust gas from the engine contains toxic gases such as carbon monoxide and is very hazardous.
• Do not operate the machine near open flames.

Precautions Before Starting

CAUTION

• Check each part to see if it is tightened properly. Vibration causes loosening of bolts, which results in unexpected serious malfunctions of the machine. Tighten the bolts securely.

Precautions During Work

• Before starting the machine, make sure it is safe to start by checking your surroundings for people and objects.
• Always pay attention to your footing. Work in an area where you can maintain a good balance of the machine and a safe comfortable posture.
• The engine and muffler become very hot. Do not touch immediately after the machine stops because they are still very hot.
• If you notice deterioration of machine operation during your work, stop your work immediately.
• Before moving away from the machine, be sure to turn the engine off. Also when the machine is transported, stop the engine and close the fuel cock.
• Keep its safety in turning a handle back and forth.
  An attached handle is movable.
  Keep its safety by clearing any obstacle in handle motion.
  In case of the operation turning a handle forward,
  move a handle down slowly by holding a handle,
  to resist its weight.

 Lifting Precautions

For unloading using a crane, a licensed crane operator is needed. An operator should be qualified for crane and hooking work.

DANGER

• Before lifting, check the machine parts (especially the hook and anti-vibration rubber) for any damage and loosened or missing bolts.
• Stop the engine and shut the fuel cock while lifting.
• Use a wire rope with sufficient strength.
• For lifting, use only one point hoisting hook, and do not lift at any other part. When the machine is hoisted, never let people or animals come underneath. For safety reasons, do not lift to a height that is higher than necessary.

CAUTION

• Use lifting handles for lifting up by hand.
  In case of loading/unloading or lifting transportation by hand, hold each lifting handle or lifting edge securely located in vibrating plate.
  Do not use the operation handle for lifting up. This lifting handle is for manual lifting only. Do not use this lifting handle as a machine lift point. Use the lifting point on the top of the machine.

 Transportation and Storage Precautions

WARNING

• Stop the engine during transportation.
• Transport after the engine and the machine are cooled down.
• Always drain the fuel before transporting.
• Securely fix the machine to prevent it from moving or falling during transportation.

Maintenance Precautions

WARNING

• Appropriate maintenance is required to ensure safe and efficient operation of the machine. Always pay attention to the machine’s condition and keep it in good condition. Pay special attention to the parts used for lifting, if they are not maintained properly, it might result in a serious accident.
• Start maintenance work after the machine has cooled down completely. The muffler, in particular, becomes very hot, and there is a danger of burn. The engine, engine oil and vibrator also become very hot. Be careful not to get burned.

CAUTION

• Always stop the engine before inspection and adjustment. If you are caught in a rotating part, serious injury might occur.
• After maintenance work, check the security parts to see if they are securely installed. Special attention should be paid when checking bolts and nuts.
• If disassembly is involved in maintenance, refer to the maintenance instruction manual to make your work safe.

 Labeling Position

REF

No.

| PART No.| PART NAME| Q’ TY| LABEL

No.

| REMARK
---|---|---|---|---|---
1| | PLATE, SERIAL NO. / EU| 1| |
2| 9202-10330| DECAL,EC NOISE REQ.LWA105| 1| NPA-1033|
3| 9209-00090| DECAL,DO NOT LIFTING| 1| NPA-1473|
4| 9209-00090| DEAL,LIFTING POSITION| 1| NPA-1474|
5| 9209-00090| DEAL,CAUTION ICONS| 1| NPA-1479| Warnig labels
6| 9209-00090| DECAL,ENGINE HANDLING /GS| 1| NPA-1480| Starting, and stopping
7| 9201-09530| DECAL,MIKASA(125MM)YELLOW| 1| NP-953| 40G
8| 9201-00920| DECAL, MIKASAMARK| 1| NP-92| 50GB/ WATER TANK
9| 9201-05070| DECAL,MIKASA MARK 125MM| 1| NP-507| 50GB/ WATER TANK

REF

No.

| PART No.| PART NAME| Q’ TY| LABEL

No.

| REMARK
---|---|---|---|---|---
1| | PLATE, SERIAL NO. / EU| 1| |
2| 9201-01410| DECAL, MIKASA MARK 120X60| 1| NP-141| WATER TANK
3| 9201-05070| DECAL,MIKASA MARK 125MM| 1| NP-507| WATER TANK
4| 9209-00090| DEAL,LIFTING POSITION| 1| NPA-1474|
5| 9209-00090| DEAL,CAUTION ICONS| 1| NPA-1479| Warnig labels
6| 9209-00090| DECAL,DO NOT LIFTING| 1| NPA-1473|
9| 9209-00090| DECAL,ENGINE HANDLING /GS| 1| NPA-1480| Starting, and stopping
10| 9202-08450| DECAL,LIFTING POSITION| 1| NPA-845|

Descriptions of symbols used on warning labels

• Danger: poisonous exhaust gas Carbon monoxide poisoning may occur if the exhaust gas is inhaled. Do not operate the machine in a poorly ventilated area.

• Be careful not to get caught in the rotating parts.
  During operation, be careful not to have your fingers, body, clothes, etc. come in contact with the rotating parts such as the V-belt and clutch.

• Refueling Hazard.
  Don’t fill the fuel tank while the engine is running or hot.

• Read the manual carefully.
  Always read the operation manual and have good understanding of operation before your work.

• Be careful not to get burned.
  Accidental burn may occur if you touch the hot parts (engine, muffler, etc.) during opera-tion or immediately after the machine stops.

• Be careful not to approach danger source.
  During operation, Be careful not to approach hot parts and rotating parts.

• Fire hazard
  Stop the engine when refueling. Fire may occur if a flame is near the tank fuel port.

• Danger of hearing damage caused by noise
  Always use ear plugs while operating the machine.

• Do not lift the machine at this point.
  Lifting by the handle is prohibited .

• Lifting position.
  For lifting, use only one point hoisting hook, and do not lift at any other part.

Starting, and stopping

START

1. Open Fuel Cock to start
2. Turn Stop Switch to “I”(ON) position Close Choke Lever
3. Pull Recoil Starter to start
4. Return Choke Lever to open

STOP

1. Return Throttle Lever fully until “O”(OFF) position to stop work
2. After cooling down enough, stop the engine to move Stop Switch to “O”(OFF) position
3. Close Fuel Cock at the end

Specifications

Machine Specifications

Overall Length Without water tank

With water tank

|

mm mm

|

855

|

865

|

880

940

|

915

965

|

880

940

Overall Width| mm| 290| | 345| 345|
Overall Height| mm| 920| 865| 850| 920| 850
Plate Size (W x L)| mm| 290 x 420| | 345 x 460| 345 x 460|
Operating Weight

Without water tank With water tank

|

kg kg

|

46

|

47

|

60

67

|

59

65

|

60

66

Travelling Speed| m/min| 25| | 25| 25|
Vibrating Frequency| Hz(vpm)| 103(6200)| | 97(5800)| 97(5800)|
Centrifugal Force| kN(kgf)| 7.2(730)| | 9.8(1000)| 9.8(1000)|
Vibrating unit| | SAE 10W-30| | SAE 10W-30| SAE 10W-30|
Lubrication oil

invibration case

| cc|

300

| |

300

|

300

|
Water tank capacity| liters| | | 8.5| 8.5|
V-Belt Size| | RPF3270| | RPF3270| RPF3270|

Engine Specifications

/ 4200min-1

| 3.2kW(4.3PS)

/ 4000min-1

| 2.6kW(3.5PS)

/ 3600min-1

Fuel Tank Capacity| liters| 1.5| 2.7| 2.5
Lubricant capacity| cc| 300| 600| 600
Starting system| | Recoil starting
Set R.P.M| rpm| 4000| 3600| 3600

Machine Specifications

Model

| MVC-T90R| MVC-T90E| MVC-T90H| MVC-T100D
---|---|---|---|---
Engine model| Subaru EY20-3D| Subaru EX17| Honda GX160| Yanmar L48N
Overall Length| mm| 1100 (1050)| 1100 (1050)| 1100 (1050)| 1100 (1050)
Overall Width| mm| 500| 500| 500| 500
Overall Height| mm| 825(950)| 825(950)| 825(950)| 825(950)
Plate Size (W x L)| mm| 500 x 525| 500 x 525| 500 x 525| 500 x 525
Operating Weight

Without water tank

With water tank

| kg kg|

92

102

|

91 (VAS:94) 101

(VAS:104)

|

91 (VAS:94) 101

(VAS:104)

|

103 (VAS:106) 113

(VAS:116)

Travelling Speed| m/min| 25| 25| 25| 25
Vibrating Frequency| Hz(vpm)| 100(6000)| 100(6000)| 100(6000)| 100(6000)
Centrifugal Force| kN(kgf)| 15.0(1530)| 15.0(1530)| 15.0(1530)| 15.0(1530)
Vibrating unit| | SAE 10W-30| SAE 10W-30| SAE 10W-30| SAE 10W-30
Lubrication oil

invibration case

| cc| 200| 200| 200| 200
Water tank capacity| liters| 13| 13| 13| 13
V-Belt Size| | RPF3330| RPF3330| RPF3330| RPF3380

• VAS = Vibration Absorbing System
• 2 In case the above models equipped with folding cart, add 4kg to each operating weight.

Engine Specifications

(petrol)

| EX17

(petrol)

| GX160

(petrol)

| L48N

(diesel)

Max. Output| | 3.7kw(5.0PS)

/ 4000min-1

| 4.2kw(5.7PS)

/ 3600min-1

| 3.6kw(4.9PS)

/ 3600min-1

| 3.5kw(4.7PS)

/ 3600min-1

Fuel Tank Capacity| liters| 3.8| 3.6| 3.1| 2.4
Lubricant capacity| cc| 600| 600| 630| 800
Starting system| | Recoil starting| Recoil starting| Recoil starting| Recoil starting
Set R.P.M| rpm| 3600| 3600| 3600| 3600

Appearance

Overall Dimensions

Control Unit Positions and Names

1. Starter Grip

2. Engine ON/OFF Switch

3. Choke Lever

4. Speed Control Lever

5. Fuel Cock

6. Handle Bar

7. Folding Handle

8.  Lifting Hook

9. Vibrating Plate

10. Vibration Case

11. Water Shut-Off Valve

12. Water Tank Cap

13. Fuel Tank Cap

14. Lifting Hook

15. Handle Bar

16. Gasoline Engine

17. Belt Cover

18. Vibrating Plate Vibration Case

19. Water Tube (Sprinkler) Water Shut-Off Valve Water Tank

20. Fuel Tank

21. Engine ON/OFF Switch Recoil Starter (pullrope) Air Cleaner

22. Spark Plug

23. Muffler

24. Starter Grip

25. Throttle Lever

26. Fuel Valve Lever Choke Lever

7. Inspection Before Operation

DANGER

Conduct inspection while the engine is stopped. If you get caught in the rotating parts, you may suffer serious damage. Conduct inspection after making this machine level and checking that the body does not move.
Refer to the “Regular Check and Adjustments” on page 17 for the inspection points before start-ing operation.

1. Clean each part of the machine well to maintain dirt and dust-free condition. Pay special attention to the soil adhered to the bottom of the vibrating plate, engine cooling air inlet, and the carburetor and air cleaner area to keep those parts clean.
2. Check each part for any looseness of bolts. Vibration causes bolts & nuts to loosen, which might result in unexpected accident or malfunction.
3. Inspect the guard hook, belt cover and anti-vibration rubber, as well as to check the function of speed adjust-ment wire and speed adjusting lever.
4. Check V-belt tension. The belt should have about 10 – 15mm of flexibility when pushed strongly with a finger at the mid-point between the axes. If V-belt is loosened, power is not transmitted well, which reduces compacting force and shortens the life of V-belt. In addition, the generated compaction force will lead to irregular vibrations when the engine revolutions are increased, and may result in a machine failure.
5. Set the engine on a level surface to check the oil level. If the oil level is low, add oil. Use the following engine oil.
   Temperature| Use oil
   ---|---
   More than 25| SAE#30
   10    25| SAE#30, #20
   10     0| SAE#20
   Less than 0| SAE#10

Quality: Diesel engine oil, Grade CC or above
Gasoline engine oil, Grade SE or above Viscosity: SAE No. 30 at 20°C and above (summer)

6. Set the machine on a level surface, then remove the oil gauge of the vibrator. Check the oil gauge to see if the oil is at the specified level. Use engine oil SAE10W-30 as lubrication oil.
   Remove the oil plug in Vibrator Assembly and check the oil level. Make sure the oil quantity is set at level of plug hole for checking. Every month or every 200 hours of operation, replace the oil.

7. A regular grade gasoline or diesel oil should be used in the engine. When filling the fuel tank, make sure the fuel filter is used.

DANGER

• Never refuel this machine while leaving the engine running. There is danger of fire.
• Never smoke, or put other flames close to this machine while refueling. Serious hazards such as burns and fire may result.
• Choose a place free from flammable substances for refueling. Be careful not to spill fuel. In case fuel should be spilled, wipe off the spilled fuel completely.
  Pour water into the water tank for sprinkling work.
  Note: Pour water only. If you should put liquids other than water, the resin, tank cap seal, etc. may deterio-rate or swell, leading to leakage or damage.
  The water tank can be removed by pulling it upward. When mounting the water tank again, insert the hook into the groove of the water tank securely. The amount of sprinkling water can be adjusted by the cock.

From Stopped Condition To Carrying Condition

1. Disengage the hook at the end of lock wire from the lock holder.

2. Pull up the lock knob to revolve the axle and let the wheel touch the ground.

3. Put the lock wire around the handle, then let the end part hook on the wire.

4. Tilt the handle to the front to let the rear end of the compaction board move up from the ground. Then, revolve the axle to below the compaction board until the axle arm touches the compaction board.

5. Pull back the handle to the rear, then raise the compaction board slightly from the ground to move the machine.

From Carrying Condition To Stoped Condition

1. Let the end of the compaction board touch the ground, then tilt the handle forward to make the wheel move away from the ground.

2. Turn the axle rearward, and let the compaction board touch the ground.

3. Raise the axle and revolve it to the stored position.

4. After the lock pin stopper touches the lock pin, the lock pin moves up, and once it fits into the stopper hole, it moves down automatically. Revolve until the lock pin is set to this locked condition.

5. With the lock wire coming at the back side of the axle, put the hook at the end on the lock holder hole.

6. This completes the storing.

Operation

Starting

DANGER
The engine exhaust gas contains carbon dioxide and is very dangerous. Do not use this machine where ventilation is poor.

Gasoline engine

1. Turn the lever of the fuel cock downward and feed fuel.

2. Turn the stop switch to “ON (I)” position.

3. Open the speed control lever half.

4. When it is cold or the engine does not start easily, close the choke lever.

5. Grip the starting knob of the recoil starter. When you pull the rope a little, you will feel some resistance. Then pull it at a stroke. Be careful not to pull the rope too strongly, or the rope may break or come off.

6. When the engine has started, return the speed control lever to the low speed position immediately. Listening to the sound of the explosion, return the choke lever grade-ally to the fully open condition.

Diesel engine

1. Open the fuel cock lever.

2. Open the speed control lever to about 30° for the idling position.

3. Push down the decompression lever and release

4. Grasp the starter grip and slowly pull it out. The resistance becomes the hardest at a certain position, corresponding to the compression point. Pull the starter grip briskly and smoothly for starting.

5. If the engine does not start, repeat steps 1 thru 4.

8.2 Operation

1. If you open the speed control lever at a stroke, this machine starts vibration and moves forward. If you open it slowly, the clutch may slip, so open the speed control lever at a stroke without hesitation.

2. When this machine is used on cohesive soils, the vibrat-ing plate dose not move over the ground easily and the travel speed becomes slow. Check that clay is not adhering to the bottom of the compaction board.
   The compaction force of this machine dose not act effectively on cohesive soils or soils of a high moisture ratio. In this case, use other machine such as a rammer, or dry the soils and decrease the moisture ratio.

3. When conducting sprinkling work, open the cock of the water tank.

4. When you stop the operation, return the speed control lever at a strake.

DANGER
When you use machine on inclined area, various risk is accompanied. When you cannot get safety, never use it.
Do not ride a weight on the machine. The machine loses the balance and there is fear a weight drops, and be damaged.
If the machine is operated on the surface where one of the interlocking locks is too big or too heavy or when the road surface is sufficiently tamped, the vibration of the machine becomes big, causing the machine to get damaged earlier than normal. Also, the vibration that the opera-tor’s hands receive will increase, leading to a danger of vibration disease if the machine is operated for an extended period of time.

Stopping Machine

1. When you finish the work and stop the engine, return the speed control lever to the low speed position, and keep the engine running at low speed for 3-5minutes. When the temperature of the engine has decreased, stop the engine.
   CAUTION
   If you stop the engine while it is still hot, this machine will be affected adversely, causing, for example, burning of the oil film on the inner wall of the cylinder, which may accelerate wear of the inner wall of the cylinder. This may result in a shorter life of this machine, or cause unex-pected failure.
   Gasoline engine

2. Turn the engine switch to the OFF position, then the engine stops.

Diesel engine
Move the speed control lever to the stop position to stop the engine.

3. Close the lever of the fuel cock

4. When you have conducted sprinkling work, close the cock of the water tank.

Transportation

WARNING

• Make sure there is no breakage of guard frame and anti-vibration rubber nor loosened or missing bolts. Always stop the engine when lifting.
• Use an intact wire rope without any deformation with sufficient strength.
• Slowly lift upward without applying any impact. Never let people or animals go under the lifted machine. For safety reasons, do not lift to a height that is higher than necessary.

Loading and Unloading

For loading and unloading using a crane, an opera-tor qualified for cranes and hooking works is needed.

1. Use a crane for loading and unloading the machine.
2. Designate a person to guide the loading and unloading, and always work under the instruction of that person.
3. When lifting, always use a special hook on the guard frame.
   Never lift by using the hook on the handle.

Transportation Precautions

WARNING

• Stop the engine when the machine is transported.
• Always drain the fuel before transportation.
• Fix the machine securely to prevent the machine from moving or falling.

Storage

1. Wash with water to remove any dust and dirt from all parts of the machine.
2. Store in a dry area away from direct sunlight after putting the cover over the machine to prevent dust and dirt buildup.
3. Drain the fuel from the fuel tank, fuel pipe, and carbure-tor completely.
4. Conduct fueling and replenishment/change of oil without omission. Remove the spark plug, put a few drops of engine oil into the cylinder, and rotate the engine manually for spreading the oil inside sufficiently.
5. Securely cover the air cleaner and muffler air inlets and exhaust port.
6. Do not leave the machine outdoors. Keep it indoors.
7. Do not store this machine by laying it on its side (or backward).

Regular Check and Adjustments

Inspection and Maintenance Schedule Table

Daily

(before starting)

| Appearance| Flaw, deformation|
Fuel tank| Leakage|
Fuel system| Leakage|
Engine oil| Leakage, oil level, dirt| Engine oil
Shock absorber| Crack, damage, wear|
Vibrator oil| Leakage| Engine oil
Air cleaner element| Dust, deformation|
Guard frame| Breakage, flaw, loosened or missing bolts and nuts|
Bolts and nuts| Looseness, missing|
Every 20 hours| Engine oil| Replace only after the first 20 hours| Engine oil
Engine oil filter (Diesel)| Replace only after the first 20 hours|
Every 100 hours| Engine oil| Change| Engine oil
Engine oil filter| Washing|
Vibrator oil| Leakage, oil level, dirt| Engine oil
Every 200 hours| V-belt for vibrator| Flaw, tension|
Clutch| Dirt, flaw, wear|
Engine bolt| Wear, deformation, degradation|
Every 300 hours| Vibrator oil| Change| Engine oil
Fuel filter| Change|
Engine oil filter (Diesel)| Change|
Every 2 years| Fuel pipes| Change|
As necessary in time| Air cleaner element| Change|

For details about the check and maintenance of the engine, please refer to the attached engine operation manual.

Caution:
The above table shows the check frequency for standard condition.
The check frequency may vary depending on the condition in which the machine is used.
For check of bolt and nut looseness and tightening, please see the following tightening torque list.
Tightening Torque List (unit: kgf-cm, 1kgf-cm=9.80665N-cm)

| Thread diameter
---|---
6mm| 8mm| 10mm| 12mm| 14mm| 16mm| 18mm| 20mm
Material| 4T(SS41)| 70| 150| 300| 500| 750| 1,100| 1,400| 2,000
6-8T(S45C)| 100| 250| 500| 800| 1,300| 2,000| 2,700| 3,800
11T(SCM3)| 150| 400| 800| 1,200| 2,000| 2,900| 4,200| 5,600
When the mating material is aluminum.| 100| 300 350| 650 700|
| Thread diameter
6mm| 8mm| 10mm| 12mm| 14mm| 16mm| 18mm| 20mm
Material| 4T(SS41)| 70| 150| 300| 500| 750| 1,100| 1,400| 2,000
6-8T(S45C)| 100| 250| 500| 800| 1,300| 2,000| 2,700| 3,800
11T(SCM3)| 150| 400| 800| 1,200| 2,000| 2,900| 4,200| 5,600
When the mating material is aluminum.| 100| 300 350| 650 700|

Changing Engine Oil
Perform the first engine oil change after 20 hours of operation, then change at every 100 hours.
Cleaning Air Cleaner
When the air cleaner element becomes dirty, the engine does not start smoothly, and sufficient output cannot be obtained. Machine operation will be affected and the engine life will be shortened greatly. Do not forget to clean the element. (For details, please see the separate engine operation manual.) If the element cannot be cleaned, replace it with a new one.
Checking/Changing V-belt and Clutch
Checking V-belt
Remove the belt cover and check that V-belt is properly stretched every 200 hours. Press on the portion midway between the two shafts with your fingers strongly. The belt is properly stretched if that portion bows by about 10-15 mm.
Checking the clutch
Inspect Clutch concurrently with the inspection of V-belt. Check visually for burning of each clutch-shoe. Check for wear the lining shoe or the like, in the opera-tion check. If the shoe wears, power transmission is not performed properly and Clutch slips. Check wear or any damage to V-groove also. If V-groove is stained, clean it thoroughly.

CAUTION
When the vibration weakens during operation, or this machine does not vibrate at all though the engine rotates normally, conduct the inspection or change of the V-belt and clutch without regard to the regular inspection of every 200 hours.
Inspection and Change of Vibrator Oil
Make this machine level, and remove the oil level plug off the vibrator. Check that vibrator oil is provided up to the mouth level. The oil level plug is on the right side of the vibrator case (opposite to the belt side). (Refer to Fig.1 on page 10.)
Use the engine oil #10W-30 for vibrator oil. Refer to page 10 for the amount. Drain the vibrator oil completely by removing the plug and tilting the body once a month or every 200 hours’ operation. Replace with new oil.

CAUTION
Always stop the engine before inspection and adjustment. If you are caught in a rotating part, serious injury might occur.

Troubleshooting

Gasoline Engine

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