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
Top View
DescriptionComponent
Distributes hydraulic fluid between the HPU and the control manifold.
It also has fittings for accumulators and filters.
Main manifold1
Distributes hydraulic fluid to and from a single hydraulic channel. A
hydraulic channel is usually associated with an actuator and a
Control manifold2
servovalve. The control manifold also contains a low-pressure solenoid
valve, a high-pressure solenoid valve, a main valve, a slow turn-on
valve, and a pressure gage.
Sets the low-pressure output of the hydraulic channel.Low-pressure
adjustment
3
Allows low-pressure hydraulic fluid to be output to the hydraulic
channel.
Low-pressure solenoid
valve
4
Allows high-pressure hydraulic fluid to be output to the hydraulic
channel.
High-pressure solenoid
valve
5
Filters the hydraulic fluid as it is input to the main manifold.Main filter6
Filters the hydraulic fluid as it is input to the pilot pressure circuit.Pilot pressure filter7
Reduces pressure and flow fluctuations resulting from changing system
demands.
Pressure accumulator8
Reduces pressure and flow fluctuations resulting from changing system
demands.
Return accumulator9
Reduces pressure and flow fluctuations at the pilot pressure port.Pilot pressure
accumulator
10
Indicates system hydraulic pressure.Pressure gage11
18 | Model 293.32 Hydraulic Service Manifold
Introduction