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12.2 Diesel Engine

(1) Starting problems

(2) Insufficient output and operation problems

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 (A) In case of compression problems

(B) In case of inappropriate fuel injection inside the combustion chamber

 (C) Fuel and compression pressure appropriate, but the engine does not start.

Intake/exhaust valve upthrust

Decompressor adjustment problems

Contact with seat not close enough.

Piston ring wear

Cylinder wear

Cylinder, cylinder head mating surface problems

Nozzle seat looseness

Clogging of the tank cap air hole.

Clogging of the fuel filter

Fuel cock not open

Air inside the fuel pipe

Injection pump barrel, plunger stuck

Nozzle hole clogging

Nozzle needle stuck

No compression at all

Almost no compression

Fuel flow low or no flow

Fuel not injected inside 

the combustion chamber

No fuel in the fuel tank

Mixing of water or foreign materials

Does not reach 

the starting revolution.

Insufficient compression

Engine overheating 

with black smoke

Revolution fluctuation

Inappropriate starting operations

Engine oil viscosity high, engine oil is very dirty.

Air trapped inside the fuel pipe.

See the comment for insufficient compression.

Dirt and breakage of cooling fin

Mixing of water inside the fuel filter

Carbon accumulated in the combustion chamber or exhaust hole.

Smoke set inappropriate

Overload

Inappropriate injecting timing

Nozzle clogging

Governor fork and sleeve mating surface problems

Governor spring problems

Fly plate and sliding part wear and operation problems

Summary of Contents for 455115

Page 1: ...8 MVH 158 http www mikasas com en REVERSIBLE COMPACTOR INSTRUCTION MANUAL 402 09402 402 09402 Contents of Declaration of Conformity Please refer the EC DECLARATION OF CONFORMITY in this manual as well...

Page 2: ...Chiyoda ku Tokyo Japan 3 Name and address of the person who keeps the technical documentation Takahiro Kishino engineer R D Division Mikasa Sangyo Co Ltd Shiraoka city Saitama Japan 4 Type Vibratory...

Page 3: ...n l annexe VIII procedura Garanzia di Qualit totale 13 Nom et adresse de l organisme notifi 14 Mandataire dans la Communaute Europeenne 15 Directive concernee Est egalement conforme aux dispositions d...

Page 4: ...ation Loading And Unloading Transportation Precautions Storage Inspection And Maintenance Schedule Table Open The Front Cover Changing The Engine Oil Cleaning The Air Cleaner Checking Changing The V b...

Page 5: ...endulum revolution suitable for compacting The vibrator pulley rotates the pendulum axis of the drive side The two pendulums inside the vibrator are fixed to the two pendulum axes that are positioned...

Page 6: ...gerous for young children to come near the machine Please pay careful atten tion to the method of storing and the storage location for this machine Especially the engine start key has to be taken out...

Page 7: ...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 awa...

Page 8: ...hecking bolts and nuts If disassembly is involved in maintenance refer to the maintenance instruction manual to make your work safe If the battery fixing bolts have been removed put them back and tigh...

Page 9: ...5 4 9 Label Position The illustration is shown for model MVH 158DZ Specifications are subject to change without notice 1 6 9 4 10 7 8 2 5 9 5 3 158GH 128GH...

Page 10: ...o move Stop Switch to O OFF position Close Fuel Cock at the end START STOP Starting and stopping P N 9209 00110 DECAL SET MVH MRH EXP EU NPA 1476 Diesel engine type is excluded Refer to engine instruc...

Page 11: ...el tank Hand pump Breather plug with plug cap Handle lock Stored position Grip Front cover Hook Throttle lever Direction control lever variable speed adjustable MVH 158DZ Handle Air cleaner Engine Vib...

Page 12: ...Front cover Hook Throttle lever Direction control lever variable speed adjustable Handle Air cleaner Engine switch Engine Muffler Vibrating plate Rubber cover Fuel tank cap Fuel inlet Recoil starter...

Page 13: ...ibrating Frequency Centrifugal Force Max Traveling Speed mm mm mm mm mm kg kw min 1 PS min 1 r p m Hz VPM kN m min MODEL MVH 158GH MVH 158DZ Specifications are subject to change without notice Main Di...

Page 14: ...E The illustration is shown for model MVH 158DZ Specifications are subject to change without notice MVH 128 590mm MVH 158 700mm MVH 128 400mm MVH 158 430mm MVH 128 1030mm MVH 158 1140mm MVH 128 965mm...

Page 15: ...or Looseness Falling off Check item The check is details of engine is referred to engine instruction manual independently Set the machine on a level surface then remove the oil gauge of the vibrator C...

Page 16: ...mes while refuel ing Do not fill to the rim because the fuel might spill Wipe off well if a spill occurs Use clean automotive gasoline or automotive light oil appropriate for the engine Let the fuel r...

Page 17: ...minutes This is especially important in cold weather 5 6 7 8 Rotation number is displayed during opera tion Fig 13 Open the throttle lever to the idling position Fig 14 Hold the recoil starter grip a...

Page 18: ...hrottle lever before the rotational speed is possible fall CAUTION 8 2 Operation During operation pay sufficient attention to dangerous objects obstacles in the direc tion of your work and surrounding...

Page 19: ...cool it down before stopping Turn the engine switch to the OFF position then the engine stops Fig 19 Shut the fuel cock Fig 20 Move the throttle lever to idle position Run the engine for 3 to 5 minute...

Page 20: ...transportation Fix the machine securely to prevent the ma chine from moving or falling When putting the handle into the stored condition vertical condition make sure it is properly locked When transpo...

Page 21: ...forth motion lever linking parts Back and forth motion lever operation Bolts and nuts Duct hose Engine oil Engine oil filter Engine oil Engine oil filter Vibrator oil Hydraulic oil Battery terminal V...

Page 22: ...ighten the bolts firmly Perform the first engine oil change after 20 hours of operation then change at every 100 hours Fig 26 The Engine Air Cleaner When the air cleaner element becomes dirty the engi...

Page 23: ...e vibra tor pulley Push the V belt to the left side of the upper clutch Similar to removing the V belt turn the wrench clockwise to install Stop the engine when inspecting or chang ing the V belt Be c...

Page 24: ...ee if it is within the allowable range Fig 37 Change the vibrator oil at every 300 hour operation Drain the oil from the drain plug For draining put a beam under the com pacting board at the other sid...

Page 25: ...rbon accumulated in the cylinder Carburetor oil level inappropriate Compression is good No fuel in the fuel tank Fuel cock does not open properly Clogging of fuel filter Clogging of tank cap air hole...

Page 26: ...Nozzle needle stuck No compression at all Almost no compression Fuel flow low or no flow Fuel not injected inside the combustion chamber No fuel in the fuel tank Mixing of water or foreign materials...

Page 27: ...talled forward backward motion lever Breakage of the oil hose Mixing of air in the hydraulic oil Clogging of foreign materials in the check valve inside the hand pump Breakage of the piston bearing in...

Page 28: ...PRINTED IN JAPAN MIKASA SANGYO CO LTD 1 4 3 Kanda Sarugakucho Chiyoda ku Tokyo 101 0064 Japan...

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