Instruction Manual

PROBLEM POSSIBLE CAUSE AND SOLUTION
Bridge raises slowly.
• The structural members of the bridge may be
binding.
• The tubing or hose is obstructed or broken. Where
pipe is used, check for obstruction in the line.
• The hydraulic line or hose may be leaking.
• The oil viscosity is not suited for the environmental
conditions. Refer to “Routine Maintenance” section
for oil recommendations.
• Check the oil level in the reservoir.
• The motor voltage/wiring may be incorrect.
• The suction screen may be clogged. Remove and
clean the screen. Drain and replace the oil.
• The suction line may be leaking air due to a loose
fitting. Tighten as needed.
• The breather holes in the reservoir fill plug may be
clogged. Remove and clean.
• The power unit pump may be defective.
Bridge lowers slowly.
• The structural members of the bridge is binding.
• The tubing or hose is obstructed or broken. Where
pipe is used, check for obstruction in the line.
• The oil viscosity is not suited for the environmental
conditions. Refer to “Routine Maintenance” section
for oil recommendations.
• The return filter may be clogged due to dirt or
damage.
TROUBLESHOOTING ANALYSIS
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