Routine Maintenance for SilentFlo HPUs
If hydraulic fluid is the lifeblood of your system, the HPU is the heart. Hundreds of gallons of fluid go through your pump each year, and it is important for system operation and energy consumption that the pump is working as efficiently as possible. As the OEM of the hydraulic power unit, we know what to look for to keep the pump in top operating condition.
Key Benefits
Equipment Reliability
Proactively address issues
Optimize Performance
Checks and adjustments improve system performance
Reduce Downtime
Minimize risk of unplanned downtime
Extend Product Life
Cost-effective way to increase product life
Service Details
On a routine maintenance visit, we’ll check pump hours, operating temperature, accumulator pressure, observable fluid condition, hose condition cable connections and filter status. We’ll charge accumulators and replace filters. At the end of each routine maintenance visit, we’ll provide a report of all services performed, current equipment condition and any recommendations, if necessary.
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MTS Hydraulic Power Unit |
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Recommended service to be performed at each running time interval noted |
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Calendar Time Using 8 Hour Run Time Rate Per Day |
Daily |
Weekly |
Biweekly |
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Annually |
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Running Time - Hours |
8 |
40 |
80 |
500 |
1,000 |
1,500 |
2,000 |
5,000 |
10,000 |
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Check Console Ventilation |
x |
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Check Dirty Filter Indicators |
x |
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Check for Leaks |
x |
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Check Oil Level |
x |
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Check Pressure |
x |
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Check Fluid Color and Odor |
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x |
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Check Interlock Devices |
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x |
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Check Cables and Connectors |
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x |
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Check Console Air Filter |
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x |
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Check Accumulators for Proper Precharge Pressure and Oil |
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MTS |
MTS |
MTS |
MTS |
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Check Condition of Electrical Cables and Cable Connections |
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MTS |
MTS |
MTS |
MTS |
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Check Hydraulic Fluid Color and Odor |
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MTS |
MTS |
MTS |
MTS |
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Check Operating Pressure and Temperature |
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MTS |
MTS |
MTS |
MTS |
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Clean Control Cabinet Air Filter, Replace if Required |
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MTS |
MTS |
MTS |
MTS |
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Inspect Heat Exchanger for Leaks or “Flow (When Off)” |
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MTS |
MTS |
MTS |
MTS |
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Inspect Pump Hoses for Leaks |
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MTS |
MTS |
MTS |
MTS |
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Lubricate Motor Bearings (non 505) |
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MTS |
MTS |
MTS |
MTS |
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Verify Dirty Filter Indicators Status |
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MTS |
MTS |
MTS |
MTS |
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Verify Hydraulic Fluid Level |
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MTS |
MTS |
MTS |
MTS |
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Verify Warning and Interlock Devices |
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MTS |
MTS |
MTS |
MTS |
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Replace All Filters |
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MTS |
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MTS |
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Verify Operation and Settings of psi Control and Relief Valves |
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MTS |
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MTS |
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Check Pump/Motor Coupling for Wear and Debris |
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MTS |
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Check Pump Voltage and Current |
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MTS |
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Check Case Drain Flow |
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MTS |
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Recommend MTS Fluid Care Oil Sample |
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MTS |
MTS |
MTS |
MTS |
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Recommend R/R Heat Exchanger |
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MTS |
MTS |
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Recommend Replacement of Hoses |
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MTS |
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Recommend Replacement of Motor Bearings |
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MTS |
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Recommend Replacement or Rebuild of Pump |
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MTS |
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Recommend Replacement or Rewind of Motor |
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MTS |
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Recommend Hydraulic Fluid Change & Clean Pump Inlet Strainer |
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MTS |
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Note: MTS |
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Symbol denotes service performed by trained field service engineers as part of an MTS Routine Maintenance plan. Some of these procedures require special service tools and/or specific service training to complete. |
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Note: x |
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Symbol denotes services performed by equipment operators. Most of these procedures involve visual checks that should not interfere with test system operation. These checks are also completed by trained field service engineers on each Routine Maintenance visit. |
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