Trinity MPS 350 Product Description And Assembly Manual

Mobile protection system

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

MPS 350

Product Description

Assembly Manual

Part No. 620262B

Revised April 18, 2008

Table of Contents

Need help?

Do you have a question about the MPS 350 and is the answer not in the manual?

Questions and answers

Summary of Contents for Trinity MPS 350

Page 1 ® MPS 350 Product Description Assembly Manual Part No. 620262B Revised April 18, 2008...
Page 2 This Manual should be available to the operator at all times. For additional copies, contact Trinity Highway Products, LLC. at 800-527-6050. All information, illustrations, and specifications in this Manual are based on the latest MPS 350 information available at the time of printing. We reserve the right to make changes at any time.
Page 3: Table Of Contents
LOWERING THE MPS 350: ....................26 RAISING THE MPS 350: .......................29 CHAIN RETAINER: .......................30 USING THE JACKS TO REMOVE THE MPS 350 FROM THE TRUCK: ......32 USING THE JACKS TO ATTACH THE MPS 350 TO THE TRUCK: ........35 WHEN THE MPS 350 IS HIT ....................38 NUISANCE HIT ........................38...
Page 4: Thank You
Serial Number of Winch: ______________________ The serial number of the MPS 350 is located on a foil nameplate on the Bumper Assembly. If the MPS 350 is still on the shipping container, the serial number will also be located on the front of the MPS 350.
Page 5: Safety Rules - For Safe Operation
STAY in the truck cab. Keep away from any metal parts on the MPS 350. Do not let anyone get close to the truck. Do not attempt to jump from the truck. The Power Company must disconnect the power before you can leave the cab.
Page 6 WARNING: Keep clear of the MPS 350 while in operation. Do not sit or stand near, under or behind MPS 350 while lowering or raising the MPS 350. Failure to follow this warning could result in serious injury or death to the operator and/or bystanders.
Page 7 Use only approved Trinity Highway Products replacement Shear Bolts when repairing MPS 350 after a crash or any shearing of the Shear Bolts. (See the following section for details: “When the MPS 350 is Hit”) Do not use hands or feet to lift or support the MPS 350.
Page 8 Do not install the MPS 350 on the truck if the truck’s fuel tank is less than 10 feet 6 inches (3200 mm) from the rear of the truck. Consult Trinity Highway Products for a bumper extension to get the correct spacing.
Page 9 Make sure that the Limit Switch, located on the Latch Bar Assembly, is operating properly prior to leaving the yard. This Limit Switch cuts off power to the Winch Motor while the MPS 350 is in the Up (Traveling) Position. (See Figure 18.0) Make sure the Latch Bar Assembly operates correctly.
Page 10: General Information
GENERAL INFORMATION MPS 350 SPECIFICATIONS The MPS 350 is a Test Level 3 crash cushion that meets performance guidelines established in National Cooperative Highway Research Program Report 350. The MPS 350 has passed ALL OF THE REQUIRED AND OPTIONAL TESTS described in NCHRP Report 350.
Page 11: Know Your Mps 350
MPS 350 Safety, Installation, Operation and Maintenance Manual KNOW YOUR MPS 350 ORIENTATION CONVENTIONS Figure 1.0 MPS-350 in Down (Operating) Position PART NAME REFERENCE Electrical Control Box Bumper Assembly Winch Bracket Assembly Pivot Bolt Impact Fence Turnbuckles Chain Supports Limit Switch...
Page 12: Shipped - Loose Parts List
MPS 350 Safety, Installation, Operation and Maintenance Manual SHIPPED - LOOSE PARTS LIST Part Number 33785B Rev. B Dated: 23 June, 2002 Revised: 11 January, 2007 Only APPROVED Trinity Highway Products replacement parts are allowed. Item Quantity Description Part Shipped...
Page 13: Recommended Spare Parts List
MPS 350 Safety, Installation, Operation and Maintenance Manual RECOMMENDED SPARE PARTS LIST The recommended spare parts list is a general listing of parts for your MPS 350. Your Trinity Highway Products Representative is ready to assist you in determining your specific needs and getting you the parts to keep your MPS 350 running.
Page 14: Mps 350 Installation Instructions
WARNING: Keep clear of the MPS 350 while in operation. Do not sit or stand near, under or behind MPS 350 while lowering or raising the MPS 350. Failure to follow this warning could result in serious injury or death to the operator and/or bystanders.
Page 15 Figure 4.0 Plastic Components and Shipped-Loose Parts Removal Open the Shipped-Loose Parts box and inventory items from the Shipped-Loose List, Part Number 33785B. (See page 9, Shipped – Loose Parts List) Contact Trinity Highway Products if parts are missing. Figure 5.0 Inventory Items From Shipped-Loose Parts Box Attach the three Jacks (Part Number 5678B, item #9 on Packing List) with 4 each 3217g –...
Page 16 Remove the keys from the ignition of the truck. Place signs on the truck that it is being serviced – DO NOT START ENGINE. Add load to the truck. The truck must be loaded to the correct weight before the MPS 350 is installed. The minimum loaded weight is 15,000 pounds (6,815 kg). This could be different for local regulations.
Page 17 Member of the MPS 350 Bumper and the Mounting Plate. The Mounting Plate should be braced to the truck frame using the “C” Channels provided with the MPS 350. Attach the Channels to the truck frame as far forward as possible following the truck manufacturer’s recommendations regarding attachment methods.
Page 18 Appendix Drawing 7555) The use of a welding cable quick-disconnect will allow easy connection and removal of the MPS 350 from the truck as required; which also allows for easy routing of the cable. Confirm operation of the Winch and Controls.
Page 19 MPS 350 Safety, Installation, Operation and Maintenance Manual Complete the following two steps: Mount the Light System on the MPS 350. Use the Drawing 7481 located in the Appendix for identification and placement of parts. Figure 12.0 Lights Location Mount the Junction box on the Lower Bumper Cross Member of the Bumper Assembly.
Page 20 Figure 13.0 Plastic Sideboards and Plastic Nose Piece Installation Raise the MPS 350 to the Up position until the Latch Bar Arms drop into place over the Frame Crossmenber on the Frame Assembly. The Latch Bar Arms must connect and engage the Frame Crossmember and allow the Limit Switch to shut-off the Winch.
Page 21 MPS 350 Safety, Installation, Operation and Maintenance Manual With the MPS 350 in an Up (Traveling) Position, remove the Linchpin and open the Clip on the end. (See Figure 15.0 Below) Chain Retainer Tabs Figure 15.0 MPS 350 Chain Retainer Insert the Chain between the Chain Retainer Tabs.
Page 22: Operation Guidelines
Bolts. See Drawing 33599/SS621 for details of Shear Bolt replacement. Ensure that all fasteners are secure. NOTE: Replacement of 3/8” (10 mm) Shear Bolts should be done more often if MPS 350 is subjected to excessive bouncing during operations. NOTE: Replacement of 5/8”...
Page 23: Mps 350 Functions And Features
MPS 350 Safety, Installation, Operation and Maintenance Manual MPS 350 FUNCTIONS AND FEATURES CAUTION: When traveling to and from a work zone, travel with the MPS 350 in the Up (Traveling) Position. CAUTION: While traveling in a moving work zone, NEVER drive faster than 35 mph (55 km/hr) with MPS 350 in a Down (Operating) Position.
Page 24: Winch System Operation
A Control Box is located near the front of the MPS 350. The Control Box provides a Power Cut-off Switch, a toggle switch for UP and DOWN operation, and a receptacle for attaching an UP and DOWN Control Pendant.
Page 25 MPS 350 Safety, Installation, Operation and Maintenance Manual The Control Pendant allows the operator to maintain additional safe distance from the MPS 350 when raising or lowering. (See Figure 20.0 Below.) Figure 20.0 MPS 350 Remote Control Pendant (Items 8, 13 and 14 of Appendix Drawing 7555) www.highwayguardrail.com...
Page 26 MPS 350 Safety, Installation, Operation and Maintenance Manual When the Frame Assembly is securely locked in the Up (Traveling) Position, the Limit Switch is depressed by the Frame Crossmember, power to the Winch is cut off, and the Winch will not work. In order to provide power to the Winch, the Latch Bar Assembly Handle must be pushed downward, which raises the Latch Bar Arms and releases pressure on the Limit Switch.
Page 27: Lowering The Mps 350
STAY in the truck cab. Keep away from any metal parts on the MPS 350. Do no let anyone get close to the truck. Do not attempt to jump from the truck. The Power Company must disconnect the power before you can leave the cab.
Page 28 Figure 24.0 MPS 350 Controller Switch CORRECT Down (Operating) Position Figure 24.1 MPS 350 in Down (Operating) Position with Weight of Frame Assembly on Chains INCORRECT Position Figure 24.2 MPS 350 in INCORRECT Position with Weight of Frame Assembly on Strap www.highwayguardrail.com...
Page 29 Products representative for more information. OPERATING HEIGHT: The MPS 350 can be adjusted by raising the MPS 350 with the Winch and then adjusting the Turnbuckle in each Chain Assembly. The MPS 350 should be adjusted for 12” –14” (305 mm - 355 mm) of ground clearance under each rear corner.
Page 30: Raising The Mps 350
STAY in the truck cab. Keep away from any metal parts on the MPS 350. Do not let anyone get close to the truck. Do not attempt to jump from the truck. The Power Company must disconnect the power before you can leave the cab.
Page 31: Chain Retainer
CHAIN RETAINER: The MPS 350 is supplied with a Linchpin and a pair of Chain Retainer Tabs located at the top of the Bracket Assembly. When the MPS 350 is raised to the full Up (Traveling) Position, the operator should lock the Chains between the Chain Retainer Tabs with the Linchpin.
Page 32 Repeat the above steps for the second Chain. NOTE: Later models of the MPS 350 may be equipped with Protective Chain Covers that do not allow the Linchpins to restrain the Chains as shown in the Chain Retainer figure. In this case, the Protective Covers may be cut in two at the appropriate location to allow the insertion of the Linchpin.
Page 33: Using The Jacks To Remove The Mps 350 From The Truck
STAY in the truck cab. Keep away from any metal parts on the MPS 350. Do not let anyone get close to the truck. Do not attempt to jump from the truck. The Power Company must disconnect the power before you can leave the cab.
Page 34 Figure 29.0 Three (3) Jack Attachment Locations - Jacks Attached with Four (4) Bolts/Nuts Use the hand crank to lower the Jacks until the wheels touch the ground. (See Figure 30.0 Below) Figure 30.0 MPS 350 Jack (See Appendix Drawing 5678) www.highwayguardrail.com Revised: April 18, 2008...
Page 35 MPS 350 Safety, Installation, Operation and Maintenance Manual Using the appropriate tools, remove the four (4) Bolts that attach the MPS 350 to the truck. (See Figure 31.0 Below) Figure 31.0 MPS 350 Bumper Assembly Bolts Mounting MPS 350 to Truck Frame It may be necessary to use the Jacks to adjust the height so that the Bolts can be easily removed.
Page 36: Using The Jacks To Attach The Mps 350 To The Truck
MPS 350 Safety, Installation, Operation and Maintenance Manual USING THE JACKS TO ATTACH THE MPS 350 TO THE TRUCK: The MPS 350 is supplied with three screw-type Jacks that can be used to position the MPS 350 to the truck.
Page 37 MPS 350 Safety, Installation, Operation and Maintenance Manual Raise the MPS 350 with the Jacks until the Bracket Assembly height is even with the holes on the truck’s Bumper. (See Figure 34.0 Below) Figure 34.0 Match MPS 350 Bracket Assembly and Bumper Connection Points Insert the four (4) Bolts that attach the MPS 350 Bracket Assembly to the truck’s bumper.
Page 38 MPS 350 Safety, Installation, Operation and Maintenance Manual Use the hand crank to raise the MPS 350 until the wheels do not touch the ground. (See Figure 36.0 Below) Figure 36.0 MPS 350 Jacks in Raised Position Remove the Bolts to un-secure the Jacks. (See Figure 37.0 Below) Figure 37.0 Removal of MPS 350 Jacks...
Page 39: When The Mps 350 Is Hit
– DO NOT START ENGINE. CAUTION : Do not use hands or feet to lift or support the MPS 350. Always use Jack supports provided. Always keep feet clear of frame when in operation and during maintenance activities.
Page 40: Low-Speed Hit
Use a separate floor Jack or ground Jack under the Frame Crossmember of the Frame Assembly to slowly raise the MPS 350 back to 12" - 14" position. (See Figure 25.0) (It may be necessary to place blocks under the Bracket Assembly at various points in the raising, in order to reposition the Jack.)
Page 41 Figure 41.0 Transporting MPS 350 Bracket Assembly and Frame Assembly Note: In some cases, the Winch can be used to lift the Nose of the MPS 350 slightly off the ground and then transported by the truck in a low ground clearance condition. The first 45” (1145mm) of Rip Plate can be replaced and the entire MPS 350 reused.
Page 42: Medium-Speed Hit
Failure to follow this warning could result in serious injury or death to the operator and/or bystanders. A HIGH-SPEED HIT is one that rips beyond 87” (2210mm) of Rip Plate. The MPS 350 must be released from the truck and transported by wrecker as described above.
Page 43: Rapid Field Replacement Of Shear Bolts
33599/SS621 in the Appendix for Bolt orientation and part numbers. Disconnect the Chain Assemblies on the rear of the MPS 350. Run out a small amount of slack in the Winch Strap to allow the MPS 350 frame to remain on the ground.
Page 44: Appendix Drawings
MPS 350 Safety, Installation, Operation and Maintenance Manual APPENDIX DRAWINGS 12 Inch Extension Weldment MPS 350 ............898 MPS 350 General Assembly – 2 Sheets............959/SS-298 Bracket Assembly – 2 Sheets ..............961 Bumper Assembly ..................962 18 Inch Extension Weldment MPS 350 ............966 Storage Jack Assembly ................5678...
Page 62 2525 Stemmons Freeway Dallas, Texas 75207 888-323-6374 (USA only) 214-589-8140 (Outside USA) www.energyabsorption.com www.highwayguardrail.com...