m be certain. MTS Series 311 Load Frame Product Information Model 311.11 Model 311.21 Model 311.31 Model 311.41 Model 311.51 Model 311.61 Model 311.
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Contents Technical Support 5 Preface 9 Conventions 10 Introduction 13 Component Identification Functional Description Specifications 15 17 19 Safety 21 Installation 33 Unpacking the Load Frame Connecting Cables 34 38 Connecting Hydraulics 39 Removing the Shipping Collars 40 Operation 41 Lift and Lock Controls Crush Point Hazards Installing a Specimen 42 43 44 Maintenance 47 Routine Maintenance Overview Checklist Maintenance Intervals 51 Making Daily Inspections Cleaning the Columns Preventi
Checking the Accumulators’ Precharge Bleeding the Hydraulic Lift Cylinders Adjusting the Hydraulic Locks 59 Aligning the Force Transducer 61 55 56 Servohydraulic Load Frame Maintenance and Service Logs 67 8 Hours/Daily 68 40 Hours/Weekly 69 80 Hours/Biweekly 70 500 Hours: Crosshead and Frame 500 Hours: Actuator 500 Hours: HSM 71 72 73 500 Hours: Hoses and Cables 74 500 Hours: Overall Complete System 500 Hours: Grips 76 1000 Hours 77 2000 Hours: Annual Maintenance Addendum 79 78 75
Technical Support How to Get Technical Support Start with your manuals The manuals supplied by MTS provide most of the information you need to use and maintain your equipment. If your equipment includes MTS software, look for online help and README files that contain additional product information. If you cannot find answers to your technical questions from these sources, you can use the internet, e-mail, telephone, or fax to contact MTS for assistance. Technical support methods MTS web site www.mts.
Know information from prior technical assistance Identify the problem Know relevant computer information Know relevant software information 6 Technical Support If you have contacted MTS about this problem before, we can recall your file.
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Problem Submittal Form in MTS Manuals Use the Problem Submittal Form to communicate problems you are experiencing with your MTS software, hardware, manuals, or service which have not been resolved to your satisfaction through the technical support process. This form includes check boxes that allow you to indicate the urgency of your problem and your expectation of an acceptable response time. We guarantee a timely response—your feedback is important to us.
Preface Before You Begin Safety first! Before you attempt to use your MTS product or system, read and understand the Safety manual and any other safety information provided with your system. Improper installation, operation, or maintenance of MTS equipment in your test facility can result in hazardous conditions that can cause severe personal injury or death and damage to your equipment and specimen. Again, read and understand the safety information provided with your system before you continue.
Conventions Conventions Documentation Conventions The following paragraphs describe some of the conventions that are used in your MTS manuals. Hazard conventions As necessary, hazard notices may be embedded in this manual. These notices contain safety information that is specific to the task to be performed. Hazard notices immediately precede the step or procedure that may lead to an associated hazard. Read all hazard notices carefully and follow the directions that are given.
Conventions Hypertext links Series 311 Load Frame The electronic document has many hypertext links displayed in a blue font. All blue words in the body text, along with all contents entries and index page numbers, are hypertext links. When you click a hypertext link, the application jumps to the corresponding topic.
Conventions 12 Preface Series 311 Load Frame
Introduction The Series 311 Load Frames are designed to perform high-velocity tension or compression testing, high-frequency fatigue testing, as well as other tests. The load frame must be configured with optional actuators, servovalves, force transducers, grips, and other components from MTS Systems Corporation. Contents Component Identification Functional Description Specifications Base Mounted Actuator 15 17 19 Crosshead Mounted Actuator Custom T-Slot Baseplate Model 311.
What you need to know Related products 14 Introduction This manual assumes that you know how to use your system controller. See the appropriate manual for information about performing any controller-related step in this manual’s procedures. You are expected to know how to do the following: • Turn system electrical power on and off. • Turn hydraulic pressure on and off. • Manually adjust the actuator position. • Use your grips and fixtures. The load frame includes other products.
Component Identification Component Identification Lifting Rings Crosshead Crosshead Locks Force Transducer Crosshead Lifts Actuator Control Panel Servovalve Manifold Accumulator LVDT Isolation Pads Series 311 Load Frame Introduction 15
Component Identification Component Descriptions Item Description Lifting rings Allows the load frame to be moved by lifting the entire load frame. Crosshead Moves up and down the columns to accommodate different sized specimens and fixtures. The crosshead is stiff and light weight; it is one end of the force train. Crosshead locks Clamps the crosshead to the columns. The crosshead locks are hydraulically powered. Force transducer Measures the axial forces applied to specimen.
Functional Description Functional Description The load frame is a stand alone testing structure. The following components are used with the load frame: Load frame • Crosshead lifts and locks • Actuator • Servovalves • Hydraulic manifold • Transducers – Force – Displacement The load frame is the basic structure which provides the reaction mass for the force train. The base of the load frame is one end of the reaction mass and the crosshead is the other end of the reaction mass.
Functional Description Transducers 18 Introduction The load frame usually includes a force transducer and an LVDT (or other displacement measurement device. Force The force transducer (also called load cell or force sensor) measures the amount of tension or compression and rotational torque applied to it. It has four strain gages that form a balanced Wheatstone bridge.
Specifications Specifications This section provides some of the specifications of the Series 311 Load Frame. Other specifications can be found on the assembly drawings specific to each load frame. Parameter Specification Force rating 311.11 311.21 311.31 311.41 311.51 311.61 311.71 Crosshead weight 311.11 311.21 311.31 311.41 311.51 311.61 311.71 Total weight* 311.11 311.21 311.31 311.41 311.51 311.61 311.
Specifications 20 Introduction Series 311 Load Frame
Safety General Safety Practices This section provides information about safety issues that pertain to servohydraulic systems in general. These issues include statements to the intended use and foreseeable misuse of the system, the hazard zone, definition for the graphical hazard labeling that is affixed to your product, and other (more general) safety information that relates to the high-pressure and highperformance characteristics of MTS servohydraulic systems.
If you have system related responsibilities (that is, if you are an operator, service engineer, or maintenance person), you should study safety information carefully before you attempt to perform any test system procedure. You should receive training on this system or a similar system to ensure a thorough knowledge of your equipment and the safety issues that are associated with its use.
Locate and read hazard placards/labels Find, read, and follow the hazard placard instructions located on the equipment. These placards are placed strategically on the equipment to call attention to areas such as known crush points and electrical voltage hazards. Locate Lockout/tautog points Know where the lockout/tagout point is for all of the supply energies associated with your system.
Keep bystanders safely away Wear proper clothing Remove flammable fluids Know compressed gas hazards Keep bystanders at a safe distance from all equipment. Never allow bystanders to touch specimens or equipment while the test is running. Do not wear neckties, shop aprons, loose clothing or jewelry, or long hair that could get caught in equipment and result in an injury. Remove loose clothing or jewelry and restrain long hair.
• Ensure that all pressurized air or gas is bled out of a pneumatic or gascharged device before you start to disassemble it. A thorough understanding of the assembly and its pressurized areas is necessary before you undertake any maintenance. Refer to the appropriate product information for the correct bleeding procedure. It might not be obvious or intuitive which bolts or fittings are used to restrain a pressurized area.
Provide proper hydraulic fluid filtration. If the system is equipped with a non-MTS hydraulic power unit, ensure proper filtration to the hydraulic distribution system and testing components. Particles present in hydraulic fluid and cause erratic or poor system response. Protect accumulators from moving objects. Protect accumulators with supports or guards. Do not strike accumulators with moving objects.
Provide test area guards Use protective guards such as cages, enclosures, and special laboratory layouts when you work with hazardous test specimens (for example, brittle or fragmenting materials or materials that are internally pressurized). Specimen temperature changes During cyclic testing, the specimen temperature can become hot enough to cause burns. Wear personal protection equipment (gloves) when handling specimens.
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.
Icon Description Do not climb on machine. Part number 57-230-037. Read the manuals or instructions. Become familiar with safety information. Also become familiar with operating and maintenance information. Part number 57-237-501. Possible explosive or flying debris. Wear appropriate protection such as safety goggles and hearing protection. Part number 57-237-506. Lift point. Part number 572375-13.
Base Assembly 2 1 1 3 5 4 View A-A Item 1 Part Number 045-384-101 Description Warning. High force moving parts. Can cause severe injury or equipment damage. Stay clear and use eye protection while test is in progress. Read instructions before operating or servicing. 2 037-588-901 Identification label. Includes model number, part number, serial number, force capacity, and manufacture date. 3 050-275-301 Information label. No step. 4 050-275-201 Caution.
Cylinder Assembly 1 2 Item Part Number Description 1 037-588-801 Identification label. Includes model number, serial number, assembly number, force, effective date, static stroke, dyn stroke, and hydrostatic bearing. 2 038-202-801 Warning. Subjecting this equipment to working pressure above 3000 psi (21 MPa) can result in component rupture and injury to personnel. See the product manual for safety precautions before operating.
Crush Point Hazards It is important to stay clear of any potential crush points when the system is operating. You should know where the crush points are in your system and protect yourself and others from those crush points with appropriate safety devices. The following paragraphs describe crush points and precautions to take while working around crush points.
Installation This section describes how to install the Series 311 Load Frame. Contents Unpacking the Load Frame Connecting Cables 34 38 Connecting Hydraulics 39 Removing the Shipping Collars Prerequisite 40 You will need a fork lift or overhead crane capable of lifting the load frame. Ensure the lifting equipment can accommodate the weight of the load frame, see the following table. Series 311 Load Fame Weights Procedure Model Weight 311.11 900 kg (2000 lb) 311.21 2000 kg (4500 lb) 311.
Unpacking the Load Frame Unpacking the Load Frame Required equipment The load frame is shipped horizontally on a wooden pallet. You will need the following equipment to unpack the load frame: • Lifting slings—not chains—to lift the load frame from its pallet • Lifting chains to tip the load frame upright • Rubber mats for the load frame’s feet to rest on • Wooden blocks for the load frame’s columns to rest on • A knife to cut the packing straps WARNING The load frame is extremely heavy.
Unpacking the Load Frame 2. Inspect the load frame for shipping damage. Look for the following: • Scratches in the load frame or columns • Damaged electrical connections • Damaged hydraulic connections • Dents and other structural damage • Torn, kinked, or breaking hoses Report any damage found to both the carrier and MTS. In the U.S. and Canada, call the MTS HELPLine at 1-800-328-2255. Elsewhere, contact your local MTS office. 3. Clamp the crosshead.
Unpacking the Load Frame B. Slowly raise the load frame to its upright position. As the unit rises, keep moving the crane to keep the chains as straight as possible. Crane Travel 30° Maximum 30° maximum when connecting both eye bolts to a single point. C. When the load frame is upright, raise it slightly to clear the shipping pallet. 5. Move the load frame to its final location.
Unpacking the Load Frame 6. Place the load frame onto the isolation pads. Install stock metal shims between the pads and the floor. Load Unit Install Shims to Level Isolation Pads Floor 7. Clean the columns. Some load frame columns are wrapped with protective paper. Remove the paper as needed. All load frame columns are covered with a protective grease. Remove the grease using a grade #1 kerosene, mineral spirits, or equivalent petroleum-based solvent.
Connecting Cables Connecting Cables Your controller manual should have cabling information about the connections described in this section. Most controller manuals provide the signal pinouts of the connector and assembly numbers for standard MTS cables. Note Prerequisite Many of the cables are connected to optional equipment. The following procedure shows the most common connections. The exact connector locations vary quite a bit among the various models of the load frame.
Connecting Hydraulics Connecting Hydraulics The procedure describes how to connect the load frame to the hydraulic power source. The load frame can be connected directly to the hydraulic power unit (also called HPU), to hydraulic plumbing in the workplace, or through a hydraulic service manifold (HSM). Note The internal hydraulic connections from the actuator manifold and accessories such as the hydraulic lifts and locks should already be made.
Removing the Shipping Collars Removing the Shipping Collars When the load frame is shipped, the crosshead is clamped in position with shipping collars. The collars should not be removed unless the lift cylinders have been bled, full hydraulic power has been applied to the crosshead, and the crosshead lock control is in the lock position. Once the collars have been removed, they should be kept rather than discarded.
Operation This section describes how to use the Series 311 Load Frame.
Lift and Lock Controls Lift and Lock Controls The crosshead lift and lock controls for the load frame are located on the front of the load frame. Two types of control panels are used. m Emergency Stop Crosshead Lift / Lock Control Crosshead Controls Emergency Stop Locks Series 311 Load Frame Controls Control Description Crosshead Lift/Lock Controls Controls the movement and clamping of the crosshead. The left handle raises and lowers the crosshead.
Crush Point Hazards Crush Point Hazards It is important to stay clear of any potential crush points when the system is operating. You should know where the crush points are in your system and protect yourself and others from those crush points with appropriate safety devices. The following paragraphs describe crush points and precautions to take while working around crush points.
Installing a Specimen Installing a Specimen The procedure to install a specimen varies due to the variety of test fixtures, grips, and the type of specimen being installed. This section should be considered a guideline. You need to modify this procedure to suit your equipment. Prerequisite Procedure You must have the necessary grips and/or fixturing installed. You must also have the controller set up to control the actuator movement, and you must have a test program defined. 1.
Installing a Specimen Note C. Always lower the crosshead to where you want it. The pressure remaining in the lift cylinders after raising the crosshead can slightly shift its alignment. Lowering the crosshead to its final position removes this pressure and improves alignment. Use the Crosshead Lift/Lock Controls to move the crosshead to a point where you can install the specimen (or specimen fixture) into the upper grip or fixture without obstruction.
Installing a Specimen 46 Operation Series 311 Load Frame
Maintenance This section describes the procedures which must be periodically performed to ensure the continued safe and effective operation of your load frame. The maintenance interval table on page 51 shows a schedule to maintain your load frame.
Routine Maintenance Overview Checklist Routine Maintenance Overview Checklist Recommended service to be performed at each running time interval noted Calendar Time using 8 hour Running Time rate per day Daily Weekly Biweekly Running Time-Hours 8 40 80 Check Actuator Platen Area to be Clean X* Monitor Filter Indicators X Check hazard labels for legibility X Check Hoses/Cables/Connectors X Check Crosshead/Lifts/Supports X Check Actuator to be Dry X Check Hydraulic Service Manifold X Che
Routine Maintenance Overview Checklist Recommended service to be performed at each running time interval noted Calendar Time using 8 hour Running Time rate per day Daily Weekly Biweekly Running Time-Hours 8 40 80 Annually 500 1000 1,500 2,000 Cursory Check of Actuator MTS MTS MTS MTS Actuator Area is Dry MTS MTS MTS MTS Actuator Platen Area is Clean MTS MTS MTS MTS Piston Rod Wear is Acceptable MTS MTS MTS MTS Bionix Lubricate Axial/Torsional Spline (75-100 hrs) MTS MTS MT
Routine Maintenance Overview Checklist Recommended service to be performed at each running time interval noted Calendar Time using 8 hour Running Time rate per day Daily Weekly Biweekly Running Time-Hours 8 40 80 Annually 500 1000 1,500 2,000 E-Stop is Working if Applicable MTS MTS MTS MTS Response to Full Stroke Waveform, Visual and Audible MTS MTS MTS MTS Valve Balance check displacement control MTS MTS MTS MTS Valve Dither Response MTS MTS MTS MTS Cursory Check of Grips/Gr
Maintenance Intervals Maintenance Intervals The following table lists the recommended interval for each of these procedures. What to Do When to Do It How to Do It* Making daily inspections Before the start of each day’s testing. See “Making Daily Inspections” on page 52. Cleaning the load frame columns When the columns become greasy or dirty. See “Cleaning the Columns” on page 53. Preventing rust Depends on the operating environment; more often in humid environments.
Making Daily Inspections Making Daily Inspections Before the start of each day’s testing, do a quick inspection of your load frame. Following are typical things that should be checked daily: 52 Maintenance • Ensure that there are no leaks from the hydraulic lifts or locks. • Ensure that there are no leaks from the actuator, hydraulic service manifold, servovalve, or accumulators. • Ensure that electrical connections are tight, with no frayed or poorly routed cables.
Cleaning the Columns Cleaning the Columns The crosshead locks can not securely clamp the crosshead to dirty or greasy columns. You will need #1 grade kerosene, mineral spirits, or equivalent petroleum-based solvent and lint-free cloths to perform this procedure. CAUTION The crosshead can slide down the columns. Crosshead cleaning takes place in a crush zone where pinched fingers and crushed hands can occur. Do not position yourself in a crush zone. Always lock the crosshead after moving it.
Preventing Rust Preventing Rust Where you operate the load frame determines how often you take rust prevention measures. Humid and corrosive environments require more prevention. Recommended supplies: • 1 grade kerosene • Silicone spray • 000 emery cloth • Touchup paint; MTS part numbers 011-059-854 (beige), 011-059-856 (grey), 044-587-501 (brown) • Metal primer paint • Lint-free cloths WARNING The crosshead can slip if the columns are still damp with kerosene.
Checking the Accumulators’ Precharge Checking the Accumulators’ Precharge An accumulators’ correct precharge pressure is written on its label. Begin by checking precharge pressures at least once a month. See the Series 111 Accumulator Product Information manual for the complete details on checking the precharge intervals and servicing the accumulators. Record both the pressures and the room temperature in a log book.
Bleeding the Hydraulic Lift Cylinders Bleeding the Hydraulic Lift Cylinders Bleed both hydraulic lift cylinders whenever the crosshead does not move smoothly. Also bleed them whenever the sealed side of the hydraulic system has been opened to air.
Bleeding the Hydraulic Lift Cylinders CAUTION The crosshead can slowly drift down the columns if the locks are turned off and the hydraulic pressure is turned off. The crosshead can damage any test fixtures, grips, and specimen in its path. Unlock the crosshead only to reposition it. Always lock the crosshead after you have repositioned it, and never leave the crosshead unlocked. 1. Ensure the crosshead is locked. 2. Turn on system electrical power. 3. Reset any active interlocks at the test controller.
Bleeding the Hydraulic Lift Cylinders 7. Briefly turn the lift control to lift the crosshead position so the lift cylinders pressurize. Then return it to the stop crosshead position. Close When Bubble-Free 8. Shut the bleed port when bubble-free fluid begins oozing out. If necessary, again pressurize the lift cylinders to force all the air out. 9. Repeat Step 6 through Step 8 to bleed the air out of the other lift cylinder.
Adjusting the Hydraulic Locks Adjusting the Hydraulic Locks Hydraulic locks will need adjustment if the crosshead does not move smoothly after bleeding the lift cylinders. Adjustment might also be needed if the crosshead slips under full load. If adjusting the hydraulic locks does not fix these problems, contact MTS Systems Corporation. 1. Turn on electrical power at the controller. Do not turn on hydraulic pressure yet. 2.
Adjusting the Hydraulic Locks 9. Turn on high hydraulic pressure. 10. Use the Crosshead Lift/Lock Controls to the clamp the crosshead in position to pressurize the hydraulic locks. 11. Remove and reinstall the shipping collars for load frame operation. See “Removing the Shipping Collars” on page 40.
Aligning the Force Transducer Aligning the Force Transducer This section describes how to align a force transducer with the load frame actuator. WARNING Alignment takes place in a crush zone with hydraulic pressure on. Hands can be crushed and equipment can be damaged equipment when hydraulics are turned on. Be careful when working in a crush zone.
Aligning the Force Transducer J. If your load frame has an anti-rotate actuator, unscrew the four cap screws that attach the anti-rotate plate to the bottom of the piston. The anti-rotate plate is at one end of the actuator. 2. Check the alignment. Check the alignment between the force transducer and the actuator. A. Attach the dial indicator to the actuator. On a low profile force transducer, adjust the indicator to take the reading along the edge of the loading surface.
Aligning the Force Transducer C. Slowly turn the actuator to rotate the indicator 360° around the force transducer. Stop frequently to take indicator readings. Keep your hands off the actuator and indicator when taking the readings. Compute the total indicator runout (TIR). Take the maximum dial indicator reading and subtract the minimum dial indicator reading. TIR Tolerance D. Model TIR 311.11 0.0381 mm (0.0015 in) 311.21 0.0508 mm (0.002 in) 311.31 0.0762 mm (0.003 in) 311.41 0.1016 mm (0.
Aligning the Force Transducer B. Tighten to 5% of the torque recorded on the identification plate using the appropriate bolt torque sequence. Bolt Torque Sequence 64 Maintenance C. Rotate the indicator to see if the TIR is still 0.038 mm (0.0015 in) or less. If not, loosen the nut or preloader collar and return to Step 3. (Loosen the preloader collar following the sequence shown below.) D. Repeat Steps B and C to tighten the force transducer for the following torque progression: 50%, 75%, and 100%.
Aligning the Force Transducer Cap Screw Torque Specifications load cell* Cap Screw Size Torque 311.11† 5/8-11 70 N•m (52 lb•ft) 311.11‡ 5/8-11 176 N•m (130 lb•ft) 311.21) 1-8 UNC-2A 570 N•m (420 lb•ft) 311.31 1-8 UNC-2A 635 N•m (470 lb•ft) 311.41§ 1-1/2-6 1220 N•m (900 lb•ft) 311.41# 1-1/2-6 1760 N•m (1300 lb•ft) 311.51 1-1/2-6 UNC-2A 1490 N•m (1100 lb•ft) * † ‡ § # Cap screw specifications for the Model 311.61 and 311.
Aligning the Force Transducer 66 Maintenance Series 311 Load Frame
Servohydraulic Load Frame Maintenance and Service Logs Contents 8 Hours/Daily 68 40 Hours/Weekly 69 80 Hours/Biweekly 70 500 Hours: Crosshead and Frame 500 Hours: Actuator 500 Hours: HSM 71 72 73 500 Hours: Hoses and Cables 74 500 Hours: Overall Complete System 500 Hours: Grips 1000 Hours 75 76 77 2000 Hours: Annual Maintenance 78 Servohydraulic Load Frame Maintenance and Service Logs 67
8 Hours/Daily 8 Hours/Daily 8 Hours/Daily Service Interval Recommendation Date 68 Check Actuator Monitor Filter Platen Area to be Indicators Clean Check Hazard Labels for Legibility Performed by Performed by Performed by Servohydraulic Load Frame Maintenance and Service Logs Notes
40 Hours/Weekly 40 Hours/Weekly 40 Hours/Weekly Service Interval Recommendation Date Check Hoses/ Cables/ Connectors Check Crosshead/ Lifts/Supports Check Actuator Check Area to Be Dry Hydraulic Service Manifold Check Lift Seal Check Lock Condition to be Seal Condition Dry to be Dry Performed by Performed by Performed by Performed by Performed by Performed by Notes Servohydraulic Load Frame Maintenance and Service Logs 69
80 Hours/Biweekly 80 Hours/Biweekly 80 Hours/Biweekly Service Interval Recommendation Bionix Lubricate Check Actuator Axial/Torsional Spline (75-100 hrs) Date 70 Performed by Performed by Notes Servohydraulic Load Frame Maintenance and Service Logs
500 Hours: Crosshead and Frame 500 Hours: Crosshead and Frame 500 Hours Service Interval Recommendation Check Crosshead/ Lifts/ Supports Date Lift Seal Condition is Dry Performed by Performed by Lock Seal Condition is Dry Crosshead Columns are Clean Column Abrasions are Acceptable Performed by Performed by Performed by Notes 500 Hours Service Interval Recommendation Date Crosshead Speed is Appropriate Crosshead Unlock Causes Program Interlock Load Frame Support/ Airbags/Pads Crosshead Moveme
500 Hours: Actuator 500 Hours: Actuator 500 Hours Service Interval Recommendation Date Cursory Check of Actuator Actuator Area is Actuator Platen Dry Area is Clean Performed by Performed by Performed by Notes 500 Hours Service Interval Recommendation Date 72 Bionix Lubricate Axial/Torsional Spline (75-100 hrs) Piston Rod Wear is Acceptable Performed by Performed by Notes Servohydraulic Load Frame Maintenance and Service Logs
500 Hours: HSM 500 Hours: HSM 500 Hours Service Interval Recommendation Date Cursory Check of Hydraulic Service Manifold Monitor Filter Indicators Manifold Hose Connections are Tight Accumulator Connections are Dry Performed by Performed by Performed by Performed by Notes 500 Hours Service Interval Recommendation Date Accumulator Accumulator Connections are Caps/Guards are Present Tight Oil on the Gas Side of the Piston Check and Adjust Pressure in Accumulator Performed by Performed by Pe
500 Hours: Hoses and Cables 500 Hours: Hoses and Cables 500 Hours Service Interval Recommendation Date 74 Cursory Check of Hoses/ Cables/ Connectors Absence of Hose Abrasions, Blisters, Vulcanizing Cable Condition and Routing is Acceptable Check Transducer Connections Hose Connections and Crimps are Dry Performed by Performed by Performed by Performed by Performed by Servohydraulic Load Frame Maintenance and Service Logs Notes
500 Hours: Overall Complete System 500 Hours: Overall Complete System 500 Hours Service Interval Recommendation Date Overall System Condition is Acceptable to Use Tuning E-Stop is Parameters are Working if Appropriate/ Applicable System Stable Response to Full Stroke Waveform, Visual and Audible Performed by Performed by Performed by Performed by Notes 500 Hours Service Interval Recommendation Date Valve Balance check displacement control Valve Dither Response Performed by Performed by Note
500 Hours: Grips 500 Hours: Grips 500 Hours Service Interval Recommendation Date 76 Cursory Check of Grips/Grip Control Grip Supply Connections are Dry Grip Seals are Dry Grip Action is Acceptable Lubricate Grip Inserts Performed by Performed by Performed by Performed by Performed by Servohydraulic Load Frame Maintenance and Service Logs Notes
1000 Hours 1000 Hours 1000 Hours Service Interval Recommendation Date All 500 hr Maintenance Procedures Hydraulic Crosshead Locks are Functioning Properly Bleed Crosshead Lift Cylinders Performed by Performed by Performed by Notes Servohydraulic Load Frame Maintenance and Service Logs 77
2000 Hours: Annual Maintenance 2000 Hours: Annual Maintenance 2000 Hours Service Interval Recommendation Date 78 All 1000 hr Maintenance Procedures Lubricate Manual Crosshead Lock Bolts Change Hydraulic Service Manifold Filters Low Pressure Adjustment (Model 294 HSM) Performed by Performed by Performed by Performed by Servohydraulic Load Frame Maintenance and Service Logs Notes
Addendum This addendum provides information on options not documented in the original load frame manual. Actuator velocity limiting switch This switch/indicator is used to control actuator speed. The switch is spring loaded left/right with a center neutral position. Momentarily turn the switch right to the [ ] and then return the switch to the center position for high-speed, normal testing operation.
CAUTION When changing hydraulic grips, make sure you cap or plug the hydraulic hoses when removed to prevent oil spillage. Oil spillage can create an environmental concern and slippery surface that can cause personal injury. Promptly clean up any oil that might have spilled when hoses were removed. WARNING The crosshead is very heavy. A dropping crosshead can crush hands, damage grips, and smash specimens. Be careful when working in a crush zone.
CAUTION For load units with hydraulic lifts and locks, the crosshead can slowly drift down the columns if the locks are turned off and when hydraulic pressure is turned off. The crosshead can damage any test fixtures, grips, and specimen in its path. Unlock the crosshead only to reposition it. Always lock the crosshead after you have repositioned it, and never leave the crosshead unlocked. 2. Set the crosshead position.
15 1 LINE LINE LINE LINE 2 1 2 3 4 UP UP UP UP TO TO TO TO 20 20 20 20 CHAR CHAR CHAR CHAR 14 13 12 3 11 4 10 5 9 6 8 7 Handset functions The handset is intended to be used in a system for specimen loading or setup. In some applications, it can be used to completely run a test. Handset Controls and Indicators # Control/Indicator Description 1 Page Displays previous or next text in the display. 2 Active Indicator. When lit, indicates the system is active (power applied).
Handset Controls and Indicators # Control/Indicator Description 7 Connector RJ-45, to Controller. 8 Hydraulic off Shuts down the HPU. 9 Start Starts the test action. Only if the application test software is active. 10 Interlock reset Resets active interlock(s) providing the cause for the interlock(s) has been remedied. 11 Thumbwheel enable Press to enable the thumbwheel to position the actuator. Press again to disable the thumbwheel, Indicator lights when thumbwheel is active.
During normal setup operation, the operator would follow this sequence: 1. Switch the system to the CLC manual control mode. 2. Activate the handset control. 3. Switch to velocity limiting mode on the load frame control panel. 4. Specimen setup or removal could then take place. To resume to normal test mode, the operator would reverse the sequence: 1. Switch to full flow mode. 2. Deselect handset control. 3. Put the system into the control mode desired for the start of the test.
m MTS Systems Corporation 14000 Technology Drive Eden Prairie, Minnesota 55344-2290 USA Toll Free Phone: 800-328-2255 (within the U.S. or Canada) Phone: 952-937-4000 (outside the U.S. or Canada) Fax: 952-937-4515 E-mail: info@mts.com http://www.mts.
