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Troubleshooting – Multiquip MVH150VD2 User Manual

Page 23

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MVH150VD2 PLATE COMPACTOR • OPERATION AND PARTS MANUAL — REV. #0 (10/10/08) — PAGE 23

TROUBLESHOOTING

Engine Troubleshooting

Table 8.

Symptom

Possible Problem

Solution

Engine will not start
or start is delayed,
although engine can be
turned over.

Speed control lever is in ""STOP"" position?

Set speed control lever to ""START""
position.

No fuel reaching injection pump?

Add fuel. Check entire fuel system.

Defective fuel pump?

Replace fuel pump.

Fuel fi lter clogged?

Replace fuel fi lter and clean tank.

Faulty fuel supply line?

Replace or repair fuel line.

Compression too low?

Check piston, cylinder and valves. Adjust or
repair per engine repair manual.

Fuel injector not working correctly?

Repair or replace injector in accordance
with engine repair manual.

Oil pressure too low?

Check engine oil pressure.

Low starting temperature limit exceeded?

Comply with cold starting instructions and
proper oil viscosity.

At low temperatures,
engine will not start.

Fuel separates has inadequate resistance to
low temperatures?

Check whether clear (not turbid) fuel
emerges from the fuel line (detach from
injection pump). If the fuel is turbid or
separated, warm up the engine or drain the
complete fuel supply system. Refuel with
winter grade diesel fuel.

Engine oil too thick?

Refi ll engine crankcase with correct type of
oil for winter environment.

Engine fi res but stops
as soon as starter is
switched off.

Throttle lever in STOP position?

Reposition throttle lever to RUN position.

Fuel fi lter blocked?

Replace fuel fi lter.

Fuel supply blocked?

Check the entire fuel system.

Engine stops by itself
during normal operation.

Fuel tank empty?

Add fuel.

Fuel fi lter blocked?

Replace fuel fi lter.

Low engine power,
output and speed.

Fuel tank empty?

Fill with No.2 diesel fuel.

Fuel fi lter clogged?

Replace fuel fi lter.

Fuel tank venting is inadequate?

Ensure that tank is adequately vented.

Speed control lever does not remain in
selected position?

See engine manual for corrective action.

Engine oil level too full?

Correct engine oil level.

Low engine power
output and low speed,
black exhaust smoke.

Air fi lter blocked?

Clean or replace air fi lter.

Incorrect valve clearances?

Adjust valves per engine specifi cation.

Malfunction at injector?

See engine manual.