Power Cube Maintenance

Hydraulic System Maintenance

Wear your Personal Protective Equipment

Generic

• Any intervention must be carried out with pressure and tension released."
• Check for visible leaks (particularly at connections). Tighten or seal if necessary.
• Check state of hydraulic fluid. Completely replace if deteriorating (sunk color, odor, milky aspect).
• Check hydraulic fluid level. Refill with same viscosity and to same line if necessary.
• If system is to be shut down for a long time, leave hydraulic oil in the circuit.
• Replace hydraulic fluid: every 24 months of use
• Replace hydraulic fluid filters: every 12 months
• Inspect hoses for damage, blisters, leaks or fraying. Replace if necessary.
• Ensure pressure relief valve is not held partially open by contamination.
• Check for corroded or loose fasteners.

Pump Maintenance

Performance parameters:

• suction pressure (Ps)
• discharge pressure (Pd)
• flow (Q)
• pump speed (Nr)
• pumpage properties
• power

Measure power with a clip on amp meter. It's not all that accurate, but it's good for a baseline comparison.

Locate suction and discharge gauges to determine (Ps) and (Pd).

• normal (perpendicular) to the pipe wall
• on centerline of pipe
• in a straight section of pipe
• not in the bottom or top (avoid air and solids)

Measure flow. It's difficult if a permanent flow meter isn't installed.

• insert a pitot tube into the pipe
• use a doppler or transitime device (non-intrusive)
• each measuring device must be calibrated (don't underestimate the importance of this)

===Fluid Maintenance===

• Control the temperature
• Keep the area clean
• Keep the fluid clean
• Follow an oil analysis program

Mechanical System Maintenance

Engine Maintenance

• Check oil level: every 5 hours
• Change oil and oil filter: after first five hours
• Change oil: every 50 hours or every season (more often if dirty conditions)
• Change oil filter: every 100 hours or every season
• Replace foam air cleaner: every 25 hours or every season
• Replace paper air filter: every 25 hours or every season
• Replace paper air filter w/ foam air cleaner: every 100 hours or every season
• Replace spark plugs: every 100 hours or every season
• Replace fuel filter: every 100 hours or every season

schedule from Briggs & Stratton website