WOOD'S POWR-GRIP MRT410LDC3 Operating Instructions Manual Download Page 8

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MRT4-DC3: #35068

Rev 6.2/2-20

Features shown here are underlined on their first appearance in each section following.

LIFT POINT

10 INTELLI-GRIP

CONTROL UNIT

17 STROBE LIGHT

INSTRUCTIONS CANISTER

11 ROTATION WEAR PLATE

18 CONTROL HANDLE

BATTERY CHARGER

12 Enclosure with VACUUM PUMP 19 VACUUM RESERVE TANKS

BATTERY

CIRCUIT BOARD and

20 VACUUM PAD with MOVABLE PAD MOUNT

POWER BUTTON

VACUUM SENSORS

21 PAD FRAME

“RELEASE” BUTTON

13 NOTIFICATION BUZZER

22 ROTATION RELEASE LEVER

“ATTACH” BUTTON

14 VACUUM LIFT LIGHT

23 TILT RELEASE LEVER

“FUNCTION” BUTTON

15 AIR FILTER

24 LIFT BAR

LCD SCREEN with BATTERY GAUGE

16 VACUUM GAUGES

Not shown:

EXTENSION ARMS

Note: A standard MRT411LDC3 is shown. Although some of the following photos do not show
this specific lifter, they all illustrate how this kind of lifter functions.

OPERATING FEATURES

Summary of Contents for MRT410LDC3

Page 1: ... 368 Laurel MT USA 59044 800 548 7341 phone 406 628 8231 phone 406 628 8354 fax www WPG com Record serial number in blank space above to locate see serial label on the product MANUAL ROTATOR TILTER DC VOLTAGE WITH INTELLI GRIP TECHNOLOGY Available with REMOTE CONTROL SYSTEM Model numbers MRT411LDC3 shown MRT49DC3 MRT410LDC3 KEEP FOR FUTURE REFERENCE ...

Page 2: ...MRT4 DC3 35068 Rev 6 2 2 20 2 ...

Page 3: ...ting a Screen Language 14 Performing Inspections and Tests 15 Checking the 12 Volt Battery 15 Preparing to Use the Remote Control System 16 TO ATTACH THE PADS TO A LOAD 17 Positioning the Lifter on the Load 17 Powering up the Lifter 18 Sealing the Pads on the Load 18 Reading the Vacuum Gauges 19 TO LIFT AND MOVE THE LOAD 20 Interpreting the Lift Light 20 Watching Vacuum Indicators 20 Controlling t...

Page 4: ...ated Load Test 31 Remote Control System Test 31 MAINTENANCE 32 VACUUM PAD MAINTENANCE 32 Pad to Load Friction Coefficient 32 Pad Inspection 32 Pad Cleaning 33 12 VOLT BATTERY RECHARGE 34 NOTIFICATION BUZZER BATTERY REPLACEMENT 35 INTELLI GRIP DIAGNOSTIC CODES 36 REPLACEMENT PARTS 40 LIMITED WARRANTY 41 TO OBTAIN REPAIRS OR WARRANTY SERVICE 41 TABLE OF CONTENTS ...

Page 5: ...angle center of gravity and temperature can also affect the lifting capacity A qualified person should evaluate the effective lifting capacity for each use see definition under Rated Load Test on page 31 Per Pad 125 lbs 56 5 kg 150 lbs 68 kg 175 lbs 80 kg Total 500 lbs 225 kg 600 lbs 270 kg 700 lbs 320 kg Lifter Weight 125 lbs 57 kg Power System 12 volts DC 4 5 amps Battery Capacity 7 amp hours Ro...

Page 6: ...MRT4 DC3 35068 Rev 6 2 2 20 4 SPECIFICATIONS Note A standard MRT411LDC3 is shown ...

Page 7: ...fter if the Maximum Load Capacity or any safety label appears to be missing or obscured Make sure the contact surfaces of the load and vacuum pads are clean before attaching the lifter see MAINTENANCE Position the vacuum pads correctly on the load before lifting see OPERATION Positioning the Lifter on the Load Do not lift a load if any vacuum indicator shows inadequate vacuum Keep unauthorized per...

Page 8: ...Y CIRCUIT BOARD and 20 VACUUM PAD with MOVABLE PAD MOUNT 5 POWER BUTTON VACUUM SENSORS 21 PAD FRAME 6 RELEASE BUTTON 13 NOTIFICATION BUZZER 22 ROTATION RELEASE LEVER 7 ATTACH BUTTON 14 VACUUM LIFT LIGHT 23 TILT RELEASE LEVER 8 FUNCTION BUTTON 15 AIR FILTER 24 LIFT BAR 9 LCD SCREEN with BATTERY GAUGE 16 VACUUM GAUGES Not shown EXTENSION ARMS Note A standard MRT411LDC3 is shown Although some of the ...

Page 9: ...Weight Note Any lifter use must comply with all statutory or regulatory standards for hoisting equipment in your region 2 2 Disengage any tilt locks or latches and raise the lift bar figs 2A C 2 3 Attach the hoisting hook to the lift point figs 2D E 2D 2E Make sure hook has restraining latch circled 2F Only use rigging rated for Maximum Load Capacity plus Lifter Weight Use rigging fig 2F as needed...

Page 10: ...tors figs 3A B and figs 3C D If the lifter has a notification buzzer install the 9 volt battery as directed in NOTIFICATION BUZZER BATTERY REPLACEMENT on page 35 4 4A Assemble the pad frame for optimal load support see TO CHANGE THE PAD FRAME CONFIGURATION on page 9 Remove the pad covers fig 4A and save them for future use 5 Perform tests as required under TESTING on page 29 ASSEMBLY ...

Page 11: ...Rev 6 2 2 20 MRT4 DC3 35068 9 TO CHANGE THE PAD FRAME CONFIGURATION ASSEMBLY ...

Page 12: ...tion to maximize support across the load surface and to minimize load overhang see LOAD CHARACTERISTICS on page 12 2 Install or remove the extension arms and reposition the movable pad mounts as needed Installing Removing Extension Arms and Repositioning Vacuum Pads 1 4A 4B 3B 2A 3A 1A Remove the cotterless hitch pin circled in fig 1A that secures the movable pad mount to the pad frame 2 Remove th...

Page 13: ...Rev 6 2 2 20 MRT4 DC3 35068 11 Using Secondary Rotation Stops Align the secondary rotation stops for correct use of the pad frame in long narrow configurations ASSEMBLY ...

Page 14: ...pacity 5 Note Standard vacuum pads can stain or deform load surfaces with light colors or soft coatings Test such surfaces for damaging effects before using the lifter on them 6 1 Although concave vacuum pads can also attach to some curved loads curvature can reduce lifting capacity Contact WPG for more information 2 A single piece of material includes curtainwall assemblies unitized glazing syste...

Page 15: ...ting Temperatures 1 2 The lifter is not designed to be watertight Moisture can result in reduced lifting capacity Do not use it in rain or other unsuitable conditions DISPOSAL OF THE LIFTER After the Service Life of the vacuum lifter has ended see SPECIFICATIONS on page 3 dispose of it in compliance with all local codes and applicable regulatory standards Note Special disposal regulations may appl...

Page 16: ...ory standards for lifter operation in your region Follow trade association guidelines about precautions needed for each load material Selecting a Screen Language When the lifter is powered up for the first time the Intelli Grip control unit prompts the operator to select a language for the LCD screen Use the buttons as follows To scroll down press the release button To scroll up press the attach b...

Page 17: ...discontinue lifter use and charge the battery see 12 VOLT BATTERY RECHARGE on page 34 If battery energy continues to decrease and you try to attach the lifter to a load the notification buzzer will sound continuously and the LCD screen will display Lockout low 12V battery along with a diagnostic code see INTELLI GRIP DIAGNOSTIC CODES on page 36 In this case you must charge the battery in order to ...

Page 18: ...e status of the lifter and load prior to lifting Make sure nearby personnel are aware of intended remote control actions Monitor the lifter at all times to make sure it is functioning as intended 1 Be sure the load is lowered and supported correctly before releasing it see following sections Note To prevent any radio transmission press the emergency disconnect button 2 1 The Remote Control System ...

Page 19: ... frame on the load fig 1A 1 2 2A Make sure all vacuum pads will fit on the load and will be loaded evenly fig 2A Consult the Per Pad Load Capacity 3 Place the vacuum pads in contact with the load surface 1 The lifter is designed to handle the maximum load weight when the load s center of gravity is positioned within 2 5 cm of the lifter s rotation axis Uncentered loads may rotate or tilt unexpecte...

Page 20: ... and the buzzer chirps once per minute Replace the battery as needed see NOTIFICATION BUZZER BATTERY REPLACEMENT on page 35 1B To use the optional Remote Control System briefly hold the power button fig 1B on the radio transmitter to activate it 1 1C Note When you hold any button on the transmitter the transmission indicator light flashes green if the transmitter is activated Sealing the Pads on t...

Page 21: ...ufficient to lift the maximum load weight fig 1A Red range 16 Hg 54 kPa Vacuum level is not sufficient to lift the maximum load weight fig 1B 2 If it takes more than 5 seconds for the vacuum level to reach 5 Hg 17 kPa on either vacuum gauge press on any vacuum pad that has not yet sealed Once the pads have sealed the lifter should be able to maintain sufficient vacuum for lifting except when used ...

Page 22: ...overcome any leakage However if the leak rate is greater than normal the notification buzzer chirps and the LCD screen displays the message Vacuum decrease on circuit along with a diagnostic code see INTELLI GRIP DIAGNOSTIC CODES on page 36 1 Such leaks can cause the battery to be discharged more quickly If the vacuum pump is unable to overcome leakage the notification buzzer sounds continuously t...

Page 23: ...cled in fig 1A to keep the lifter and load in the required position Once there is enough clearance you may move the load as required In Case of a Power Failure In the event of a battery failure or electrical system failure the notification buzzer will sound continuously Although the vacuum reserve tanks are designed to support the load for at least 5 minutes without power this depends on many fact...

Page 24: ...tacting anyone or anything 2 Use the control handle circled in fig 2A to keep the load under control at all times Unbalanced loads may rotate unexpectedly when rotation latch is disengaged 3 Pull the rotation release lever fig 3A to disengage the rotation latch and rotate the load as required 4 To stop load motion let go of the rotation release lever and guide the load to the next stop Note Whenev...

Page 25: ...nce to tilt without contacting anyone or anything 2 Use the control handle circled in fig 2A to keep the load under control at all times Unbalanced loads may tilt unexpectedly when tilt latch is disengaged 3 If the pad frame is latched pull the tilt release lever fig 3A to disengage the tilt latch Note The pad frame automatically latches when tilted to the vertical position 4 Tilt the load as requ...

Page 26: ...v 6 2 2 20 24 A load with overhang may force you to release the control handle as the load approaches the flat position In this case use hand cups circled in fig 1A or other appropriate means to control the load OPERATION ...

Page 27: ...be releasing the load 2 Do not move lifter until pads release completely because such movement could result in load damage or personal injury Continue to hold the function and release buttons until the vacuum pads release the load completely Otherwise the vacuum lifter will automatically revert to attach mode 1 After the load is successfully released the lifter activates the Power Save mode automa...

Page 28: ... that could soil or damage vacuum pads 4 To transport the lifter secure it in the original shipping container with the original restraints or equivalent Storing the Lifter 1 1B Use the covers supplied to keep the vacuum pads clean fig 1B CE To prevent the lifter from tipping over on relatively horizontal surfaces place the vacuum pads facedown on a clean smooth flat surface Then lower the lift bar...

Page 29: ... 3B 3D 3E 3C Disconnect the electrical connectors figs 3A B and figs 3C E to prevent battery discharge 4 Store the lifter in a clean dry location Store the battery between 32 and 70 F 0 21 C Avoid storage above 100 F 38 C 3A OPERATION ...

Page 30: ...sual vibrations or noises while operating lifter If lifter has Remote Control System perform Remote Control System Test on page 31 Examine entire lifter for evidence of looseness excessive wear or excessive corrosion deformation cracks dents to structural or functional components cuts in vacuum pads or hoses any other hazardous conditions Inspect entire electrical system for damage wear or contami...

Page 31: ... strobe light flashes 6 Take precautions in case load should fall during test Raise the load a minimal distance to make sure it is supported by the lifter 7 Watch each vacuum gauge Starting from a vacuum level of 16 Hg 54 kPa the lifter must maintain a vacuum level greater than 12 Hg 41 kPa for 5 minutes 4 If not lifting this load requires additional precautions eg a load sling Contact WPG for mor...

Page 32: ... in case load should fall during test Raise the load a minimal distance Then hold the function button and the power button for at least 5 seconds to power down the lifter 2 5 Watch the vacuum gauges The vacuum level should not decrease by more than 4 Hg 14 kPa in 5 minutes 6 Lower the load after 5 minutes or whenever a lifter fails the test and release the load as previously directed 7 Never use l...

Page 33: ...ns 3 Vary the transmitter s direction and distance from the lifter to make sure transmissions are effective 4 If the Remote Control System is not functioning correctly the battery for the radio transmitter may need to be replaced or metal or other electrically conductive surfaces may be causing radio interference Reposition the transmitter to transmit signals effectively If the problem persists va...

Page 34: ...efficient of vacuum pads Replace pads every 2 years or more often when necessary Pad Inspection 1A Inspect each vacuum pad fig 1A according to the INSPECTION SCHEDULE on page 28 and correct the following faults before using the lifter see REPLACEMENT PARTS when applicable Contaminates on the face item 1 in fig 1A or sealing edges item 2 in fig 1A Filter screen item 3 in fig 1A missing from face Ni...

Page 35: ...er use rubber conditioners on vacuum pad Many rubber conditioners can leave a hazardous film on vacuum pads 2 Prevent liquid from entering the vacuum system through the suction hole on the pad face 3 Wipe the pad face clean using a clean sponge or lint free cloth to apply the cleanser 1 Allow the pad to dry completely before using the lifter 1 A brush with bristles that do not harm rubber can help...

Page 36: ...tery reconnect charger see ASSEMBLY on page 8 Error lamp turns on immediately Battery leads connected to the wrong poles reverse battery leads Charging stops at either stage 1 or stage 4 and error lamp turns on Battery is no longer functioning replace battery see REPLACEMENT PARTS on page 40 Before you return the lifter to service recheck the battery as previously directed 1 You may use a battery ...

Page 37: ...he buzzer battery holder by pressing inward and sideward in the direction marked on the holder 3 3A Slide the battery tray out fig 3A 4 Install a new 9 volt battery according to the polarity markings 5 Slide the battery tray back into position 6 Power up the lifter again to test the new battery MAINTENANCE ...

Page 38: ...urce while lifter is powered up If so power down lifter disconnect charger from power source and power up again If code persists check battery condition as directed above B03 Charge 12V battery soon 1 chirp per minute none Charge 12 volt battery see 12 VOLT BATTERY RECHARGE on page 34 B09 Replace 9V battery 1 chirp per minute none Replace 9V battery for notification buzzer as needed see NOTIFICATI...

Page 39: ...ect connector between 12V battery and vacuum generating system Charge battery completely see 12 VOLT BATTERY RECHARGE on page 34 Then reconnect battery and try to power down again If code persists disconnect connector Service is required N04 Failed to turn controls power off 1 chirp every 2 seconds none Intelli Grip control unit failed to power down Remove 9V battery Disconnect connector between 1...

Page 40: ... available in Attach none none Operator Menus cannot be accessed while lifter is attached to load U09 Counterweight not retracted continuous on Release function is prevented because counterweight is not positioned correctly Reposition counterweight as directed see Counter Balancer OPERATING INSTRUCTIONS if necessary U10 Use POWER button for Live Stats none none Power button not function button is ...

Page 41: ...ty achieving minimum vacuum level due to high elevation In case of suspected leak check for fault s in vacuum system See relevant topics in ASSEMBLY OPERATION INSPECTIONS AND TESTS and MAINTENANCE In case of high elevation contact WPG for directions V040 Lockout vacuum sensor error continuous none Once Power Save mode is activated attach and release functions are prevented due to a vacuum sensor m...

Page 42: ...le Pad Mount 2 1 2 Tubing Size 4 54382NC Power Lead 1 53134AZ Hose Fitting Elbow 5 32 ID 4 53122 Pad Fitting Elbow 5 32 ID 4 49646T Vacuum Pad Model G3370 11 28 cm Diameter Lipped 4 49605T Vacuum Pad Model HV11 10 25 cm Diameter Lipped 4 49506TA Vacuum Pad Model VPFS9 9 23 cm Diameter 4 49180 End Plug 3 x 3 x 1 4 Tubing Size 1 49150 End Plug 2 1 2 x 2 1 2 x 1 4 Tubing Size 4 36105 Service Manual 1...

Page 43: ...wear and tear and or the product has been damaged misused or neglected If a problem is not covered under warranty WPG will notify the customer of costs prior to repair If the customer agrees to pay all repair costs and to receive the repaired product on a C O D basis WPG then will proceed with repairs Wood s Powr Grip Co Inc 908 West Main St Laurel MT 59044 USA 406 628 8231 phone 800 548 7341 phon...

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