Wacker Neuson RD 12A, Operator'S Manual

Page: 70 / 106

Basic Troubleshooting RD 12A
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wc_tx001558gb.fm
6 Basic Troubleshooting
Problem / Symptom Reason / Remedy
ENGINE DOES NOT
START
• Fuel tank empty.
• Wrong type of fuel.
• Old fuel. Drain tank, change fuel filter and fill with fresh fuel.
• Fuel system not primed.
• Fuel filter restricted or plugged. Replace filter.
• Battery connections loose or corroded. Battery dead.
• Air cleaner element plugged.
• Starter motor defective.
• Fuel solenoids on engine inoperative.
• Starter relay inoperative.
• Electrical connections loose or broken.
ENGINE STOPS BY
ITSELF
• Fuel tank empty.
• Fuel filter plugged.
• Fuel lines broken or loose.
• No spark.
NO VIBRATION • Defective switch or poor connection.
• Solenoid on vibration valve damaged or disconnected.
• Exciter assembly damaged.
• Exciter motor coupling damaged or broken.
• Exciter motor damaged.
• Exciter pump damaged.
• Exciter bearings damaged.
NO TRAVEL or
TRAVEL ONLY IN
ONE DIRECTION
• Pin sheared on forward/reverse control.
• Control cable loose or broken.
• Drive motor damaged.
• Drive pump damaged.
• Defective relief valve or valves.
NO STEERING • Steering cylinder damaged.
• Steering unit damaged.
• Steering relief valve stuck or damaged.
• Articulation joint lockarm engaged.