Service Manifold Manual
Table Of Contents
- Technical Support
- Preface
- Introduction
- About the Hydraulic Service Manifold (HSM)
- 293.32 HSM Component Identification
- HSM Fluid Flow
- HSM Filtering
- HSM Pressure Control
- About HSM Pilot Pressure
- HSM Accumulators
- HSM Slow Turn-On
- HSM Rapid Pressure Reduction
- Model 239.32 HSM Hydraulic Schematic
- Model 293.32 HSM Dimensions
- Model 293.32 HSM Specifications
- Safety
- General Safety Practices: Hydraulic Power Units and Hydraulic Service Manifolds
- Hazard Placard Placement
- Read all manuals
- Locate and read hazard placards/labels
- Specimen Temperature Changes
- Know facility safe procedures
- Know controls
- Have first aid available
- Know potential crush and pinch points
- Be aware of component movement with hydraulics off
- Know electrical hazards
- Keep bystanders safely away
- Wear proper clothing
- Remove flammable fluids
- Check bolt ratings and torques
- Practice good housekeeping
- Protect hoses and cables
- Provide proper hydraulic fluid filtration
- Protect accumulators from moving objects
- Do not exceed the Maximum Supply Pressure
- Do not disable safety devices
- Use appropriately sized fuses
- Provide adequate lighting
- Provide means to access out-of-reach components
- Wear appropriate personal protection
- Handle chemicals safely
- Know system interlocks
- Know system limits
- Do not disturb sensors
- Ensure secure cables
- Stay alert
- Contain small leaks
- Stay clear of moving equipment/avoid crush points
- Know the causes of unexpected actuator motions
- Do not use RF transmitters
- Know compressed gas hazards
- General Safety Practices: Hydraulic Power Units and Hydraulic Service Manifolds
- Installation
- Operation
- Maintenance
Do not disturb sensors
Do not bump, wiggle, adjust, disconnect, or otherwise disturb a sensor (such as an accelerometer or
extensometer) or its connecting cable when hydraulic pressure is applied.
Ensure secure cables
Do not change any cable connections when electrical power or hydraulic pressure is applied. If you attempt
to change a cable connection while the system is in operation, an open control loop condition can result.
An open control loop condition can cause a rapid, unexpected system response which can result in severe
personal injury, death, or damage to equipment. Also, ensure that all cables are connected after you make
any changes in the system configuration.
Stay alert
Avoid long periods of work without adequate rest. In addition, avoid long periods of repetitious, unvarying,
or monotonous work because these conditions can contribute to accidents and hazardous situations. If
you are too familiar with the work environment, it is easy to overlook potential hazards that exist in that
environment.
Contain small leaks
Do not use your fingers or hands to stop small leaks in hydraulic or pneumatic hoses. Substantial pressures
can build up, especially if the hole is small. These high pressures can cause the oil or gas to penetrate
your skin, causing painful and dangerously infected wounds. Turn off the hydraulic supply and allow the
hydraulic pressure to dissipate before you remove and replace the hose or any pressurized component.
Stay clear of moving equipment/avoid crush points
Stay clear of mechanical linkages, connecting cables, and hoses that move because you can get pinched,
crushed, tangled, or dragged along with the equipment. High forces generated by the system can pinch,
cut, or crush anything in the path of the equipment and cause serious injury. Stay clear of any potential
crush points. Most test systems can produce sudden, high-force motion. Never assume that your reactions
are fast enough to allow you to escape injury when a system fails.
Know the causes of unexpected actuator motions
The high force and velocity capabilities of MTS actuators can be destructive and dangerous (especially if
actuator motion is unexpected). The most likely causes of unexpected actuator response are operator
error and equipment failure due to damage or abuse (such as broken, cut, or crushed cables and hoses;
shorted wires; overstressed feedback devices; and damaged components within the servocontrol loop).
Eliminate any condition that could cause unexpected actuator motion.
32 | Model 293.32 Hydraulic Service Manifold
Safety