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WOOD'S POWR-GRIP MRTALP Series, Instructions Manual, Page: 11 / 46

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WOOD'S POWR-GRIP MRTALP Series Instructions Manual Download Page 11

Rev 12.3/1-17 

9 

MRTALP6-DC: #35056 

T

O 

C

HANGE THE 

P

AD 

F

RAME 

C

ONFIGURATION

 

The lifter offers a variety of pad frame configurations to accommodate different load dimensions 

and weights, as shown in the following illustration.    Select a configuration to provide optimal 
support across the load surface and to minimize load overhang (see OPERATION: B

EFORE 

U

SING 

THE 

L

IFTER

). 

Standard MRTALP611LDC pad frame shown. 

Summary of Contents for MRTALP Series

Page 1: ...serial label and record number here LOW PROFILE MANUAL ROTATOR TILTER DC VOLTAGE WITH DUAL VACUUM SYSTEM AVAILABLE WITH REMOTE CONTROL SYSTEM READ ALL INSTRUCTIONS AND WARNINGS BEFORE OPERATING THIS LIFTER DESIGNED FOR THE MATERIALS HANDLING PROFESSIONAL P O Box 368 908 West Main Laurel MT USA 59044 phone 800 548 7341 phone 406 628 8231 fax 406 628 8354 ...

Page 2: ......

Page 3: ...figuration 16 Preparing to Use the Optional Remote Control System 16 TO APPLY THE PADS TO A LOAD 17 Positioning the Lifter on the Load 17 Powering up the Lifter 17 Sealing the Pads against the Load 17 Reading the Vacuum Gauges 18 Vacuum Level on Optimal Surfaces 18 Vacuum Level on Other Surfaces 18 TO LIFT AND MOVE THE LOAD 19 Positioning the Lift Bar 19 Interpreting the Warning Buzzer and Lift Li...

Page 4: ...NTENANCE 29 Friction Coefficient 29 Inspection 30 Cleaning 30 VACUUM TEST 31 REMOTE CONTROL SYSTEM TEST 31 TO REPLACE SEALING RING INSERT IN VPFS10T VACUUM PAD 32 AIR FILTER MAINTENANCE 33 Filter Function and Conditions Requiring Service 33 Filter Service Procedures 33 VACUUM PUMP MAINTENANCE DYNAFLO DV1034204 34 Replacing a Diaphragm 34 Replacing a Gasket Flap Valves 34 Replacing a Head Assembly ...

Page 5: ...S LIST for more information For the DISPOSAL OF THE LIFTER after its service life see INTENDED USE ASME Standard BTH 1 Design Category B Service Class 0 see www wpg com for more information CE Note This symbol appears in the INSTRUCTIONS manual only when requirements of a CE Standard are different from requirements of other standards that also apply to this vacuum lifter CE requirements are mandat...

Page 6: ...ctly on the load prior to lifting see OPERATION TO APPLY THE PADS TO A LOAD Never lift a load when any vacuum indicator shows inadequate vacuum Never touch the vacuum release controls during a lift This may result in loss of vacuum and release of the load Never allow people to ride on the lifter or the load being lifted Never lift a load higher than necessary or leave suspended loads unattended Ne...

Page 7: ... 19 BATTERY TEST BUTTON 2 BATTERY CHARGER 11 VACUUM PAD 20 BATTERY GAUGE 3 CONTROL HANDLES 12 MOVABLE PAD MOUNT 21 Cover for VACUUM PUMP 4 BATTERY 13 STROBE LIGHT optional 22 VACUUM LIFT LIGHT 5 ROTATION RELEASE LEVER 14 RADIO RECEIVER optional 23 VACUUM GAUGES 6 PAD FRAME 15 POWER SWITCH 24 LOW VACUUM WARNING BUZZER 7 EXTENSION ARM 16 RELEASE BUTTON 25 TILT RELEASE LEVER 8 QUICK CONNECTOR 17 APPL...

Page 8: ...Rev 12 3 1 17 6 MRTALP6 DC 35056 1 EMERGENCY TRANSMITTER DISCONNECT 2 TRANSMISSION INDICATOR LIGHT 3 RELEASE BUTTON 4 TRANSMITTER POWER ENABLE BUTTON 5 APPLY BUTTON OPTIONAL RADIO TRANSMITTER ...

Page 9: ...ecurely Note For pad frame configurations that use extension arms see TO CHANGE THE PAD FRAME CONFIGURATION to follow position the lift spool to avoid contact with the extension arms when the pad frame is rotating 4 Suspend the lifter from a crane as follows Select hoisting equipment crane and hoist when applicable rated to carry the maximum load weight plus the lifter weight see SPECIFICATIONS Ma...

Page 10: ...e the lifter out of the shipping container Be careful to avoid damaging any vacuum pads 5 Arrange the pad frame in the configuration that will provide optimal support of the load while lifting see TO CHANGE THE PAD FRAME CONFIGURATION to follow Remove the pad covers and save them for use whenever the lifter is stored 6 Connect the electrical connectors uniting the battery to the battery charger an...

Page 11: ... of pad frame configurations to accommodate different load dimensions and weights as shown in the following illustration Select a configuration to provide optimal support across the load surface and to minimize load overhang see OPERATION BEFORE USING THE LIFTER Standard MRTALP611LDC pad frame shown ...

Page 12: ...sions some extension arms or vacuum pads may be removed and the corresponding vacuum hoses may be disconnected provided that the lifter still has sufficient capacity to support the load in question WARNING Removing or disconnecting any vacuum pad reduces load capacity of lifter To calculate the load capacity when some vacuum pads are disconnected or removed consult the Per Pad Load Capacity see SP...

Page 13: ... mount with the corresponding holes in the pad frame 4 Secure the pad mount by pushing the cotterless hitch pin through the holes until the retaining ball emerges on the far side of the pad mount Note When you are securing a pad mount on the main pad frame the cotterless hitch pin may encounter resistance from internally routed hoses or wires If so gently manipulate the pin around any hoses or wir...

Page 14: ... of the load are determined by the Pad Spread see SPECIFICATIONS the maximum length and width are determined by the allowable overhang or the amount of load material that can extend sideways beyond the vacuum pads without breaking or otherwise being damaged The allowable overhang depends on the kind of load material being lifted the thickness of the material and the angle at which it is handled if...

Page 15: ...vation and Operating Temperatures indicated in SPECIFICATIONS The lifter s work environment must be free of metal particles or any other contaminates that could damage lifter components through airborne contact or any other means of transmission in the environment If such contaminates cause a vacuum pump failure they could result in a load release and possible injury to the operator or others near...

Page 16: ...Rev 12 3 1 17 14 MRTALP6 DC 35056 Note This lifter is equipped with a battery which may be subject to special disposal regulations ...

Page 17: ...ery energy before using lifter See MAINTENANCE BATTERY TEST Perform all inspections and tests required by the INSPECTION and TESTING SCHEDULES see MAINTENANCE In addition if the lifter has been in storage always conduct a VACUUM TEST before placing it in service see MAINTENANCE WARNING Make sure alarm is clearly audible over ambient noise at operator position The volume of the alarm may be adjuste...

Page 18: ... System the operator can engage the lifter s apply and release functions at distances up to 250 ft 76 m provided there is a direct and clear view of the lifter and its status indicators from the operator location see MAINTENANCE REMOTE CONTROL SYSTEM TEST When lifting a load from a remote location the operator must monitor the lifter at all times to make sure that it is functioning as intended 9 I...

Page 19: ...le function see TO RELEASE THE PADS FROM THE LOAD to follow Note If the transmitter is activated the transmission indicator light flashes green when any button on the transmitter is pressed and held if the transmitter is not activated the indicator light flashes red see BEFORE USING THE LIFTER Preparing to Use the Optional Remote Control System preceding Sealing the Pads against the Load Firm pres...

Page 20: ...l on Other Surfaces When the lifter is attached to contaminated rough or porous load surfaces it may not be able to maintain a vacuum level in the green range on both vacuum gauges due to leakage in the seal between the vacuum pads and the load surface 13 In the case of contamination thoroughly clean the contact surfaces of the load and the vacuum pads see MAINTENANCE VACUUM PAD MAINTENANCE Cleani...

Page 21: ...WARNING Vacuum indicators must be visible to operator throughout entire lift If the vacuum system experiences leakage while the lifter is attached to the load the vacuum pump turns on and off automatically as required to maintain sufficient vacuum for lifting the maximum load weight Under normal conditions such intermittent cycling of the pump is no cause for alarm However if vacuum decreases sign...

Page 22: ... between the vacuum pads and the load Since the alarm may sound in such circumstances consult the section TO APPLY THE PADS TO A LOAD Vacuum Level on Other Surfaces to determine whether the lifter can be used to lift the load If the vacuum loss is due to any other cause perform inspection and maintenance as needed to identify and correct any deficiency before resuming normal operation of the lifte...

Page 23: ...oned correctly on lifter see TO APPLY unbalanced loads may rotate unexpectedly when latch is disengaged Remember that the load is longer in its diagonal dimensions than in its side dimensions Make sure there is sufficient clearance for the load to rotate without contacting the operator or any nearby objects Maintain a firm grip on the control handle located on pad frame to keep the load under cont...

Page 24: ...If the pad frame is latched in the vertical position pull the tilt release lever to disengage the tilt latch Lift upward or press downward on the control handle to tilt the load as desired If load size permits maintain control with the handle throughout the tilt For loads with overhang it may be necessary to release the control handle as the load approaches the flat position If so keep the load un...

Page 25: ...ly activate the stand by mode to conserve the battery energy until the lifter is ready to lift another load Once the stand by mode is activated only the blue power light remains illuminated Prior to lifting another load perform the Every Lift Inspection as directed in MAINTENANCE INSPECTION SCHEDULE AFTER USING THE LIFTER Make sure the power switch on the lifter is in the off position The adjacent...

Page 26: ...ientation and place a support under the lift spool Charge the battery completely when placing it in storage and at six month intervals thereafter see MAINTENANCE BATTERY RECHARGE After charging the battery disconnect the electrical connectors uniting the battery to the battery charger and to the vacuum generating system in order to minimize power drainage Preferred temperatures for storing the bat...

Page 27: ...hours use or whenever lifter is out of service for 1 month or more Examine the lifter s structure for visual damage Examine the vacuum system including vacuum pads fittings and hoses for visual damage Examine the air filters for conditions requiring service see AIR FILTER MAINTENANCE to follow Perform the VACUUM TEST to follow Check for unusual vibrations or noises while operating the lifter If th...

Page 28: ...FICATIONS using an actual load or an equivalent simulation 15 Employ the following method to test with an actual load 1 Place a test load with appropriate LOAD CHARACTERISTICS see INTENDED USE on a stable support Make sure the load is oriented in the upright position 16 2 Apply the vacuum pads to the load as previously directed 3 After the vacuum pump stops running place the lifter s power switch ...

Page 29: ...t is when only red lights are illuminated regardless of the estimated energy requirement WARNING Never use lifter if battery energy is lower than 50 of capacity While the lifter s power switch is in the on position the battery gauge automatically monitors battery energy provided that the lifter is not in stand by mode However the battery gauge shuts off temporarily while the vacuum pump is running...

Page 30: ...egin to charge the battery automatically Lights 1 4 in the illustration indicate the level of charging that has been attained 20 When the battery is fully charged the charger switches to a maintenance mode and charging level light 4 green turns on When you perform a BATTERY TEST the blue light on the battery gauge also turns on to indicate that the battery is fully charged Be sure to unplug the ch...

Page 31: ...If the charger is functioning correctly the energy reading should be higher when the charger is plugged in VACUUM PAD MAINTENANCE Friction Coefficient The friction coefficient represents the lifter s ability to resist load slippage when the load is oriented in any position except horizontal If the contact surfaces of either the load or the vacuum pads are not clean dry and in good condition slippa...

Page 32: ...line and diesel fuel or any harsh chemicals for cleaning Do not use unauthorized rubber cleaners or conditioners such as those intended for cleaning tires or vinyl surfaces because those products can leave a hazardous film on vacuum pads which significantly reduces their lifting capacity see Friction Coefficient preceding The use of any unauthorized cleaning agent is prohibited because it could da...

Page 33: ...er in relation to the lifter to ensure that transmissions are effective in a variety of circumstances This may require assistance from someone near the lifter to verify that functions are being performed as intended If the Remote Control System does not function correctly review the following potential causes of malfunction and correct them as directed The battery for the radio transmitter may be ...

Page 34: ...dge of the ring insert against the inside edge of the mounting groove Then push gently and firmly on the outside edge of the ring insert until it seats completely into the mounting groove A pad ring installation tool is available to facilitate this process see REPLACEMENT PARTS LIST Work your way around the entire ring insert repeating this process until the entire ring is seated in the mounting g...

Page 35: ...movable end 2 counter clockwise approximately 45 until it stops moving 2 Pull the end outward from the case and remove the filter element 3 Use an air hose or other suitable means to remove any liquid or other contaminants found inside the case Also make sure the seal 4 is not damaged 3 Determine whether the filter element needs to be replaced see Conditions Requiring Service above 4 Depending on ...

Page 36: ...inal position 4 Reverse the steps above for reassembly as shown in the illustration Replacing a Gasket Flap Valves 1 Remove the four head screws 1 and lock washers 2 and remove the head assembly 3 7 2 Invert the head and remove the two valve plate screws 7 Remove the valve plate 6 to access the gasket flap valves 3 Replace the gasket flap valves 5 and reverse the steps above for reassembly as show...

Page 37: ...te that a different menu may appear if the button is released too soon 27 Use the arrow keys to access the unlocked mode UnL and press the SET button again 2 Press and release the SET button to access the different settings n_1 n_2 n_3 n_4 Use the arrow keys to adjust each setting and then press the SET button to continue to the next setting The following values should appear on the digital displa...

Page 38: ...g n_4 turns on the low vacuum warning buzzer light and or strobe light and turns off the vacuum lift light This signals a loss of adequate vacuum to the lifter operator Note Setting n_4 corresponds with the minimum vacuum level for lifting loads This setting must not be lowered without first consulting Wood s Powr Grip because it may reduce the maximum lifting capacity 3 Each vacuum switch must be...

Page 39: ...ery Charger 7 Amp 100 120 V AC optional 1 64711AM Battery Charger 7 Amp 240 V AC optional 1 64707AS Battery Charger 0 6 Amp 240 V AC Australian Type 1 64706AZ Battery Charger 1 Amp 240 V AC 1 64702AM Battery Charger 1 Amp 100 120 V AC 1 64682 Battery 1 5 V DC AA Alkaline for optional radio transmitter 2 64665 Battery 12 V DC 18 Amp Hours optional 1 64664 Battery 12 V DC 7 Amp Hours 1 64590 Battery...

Page 40: ...6131 Element for Air Filter 2 16057 Quick Connector 1 8 FNPS Male End 6 16056 Quick Connector 1 8 FNPS Female End 8 15920 Vacuum Gauge 1 8 NPT CBM Type w Panel Mount Bracket 2 15792AM Rotation or Tilt Release Lever Knob 2 15632 Pad Filter Screen Small for VPFS10T G0750 pads 6 15630 Pad Filter Screen Large for G3370 HV11 pads 6 13532 Cotterless Hitch Pin 1 2 x 4 13 mm x 102 mm 6 13530 Cotterless Hi...

Page 41: ...g use Repairs are required due to abnormal wear and tear The product has been damaged misused or neglected If a problem is not covered under warranty Powr Grip 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 Powr Grip then will proceed with repairs Wood s Powr Grip Co Inc 908 West Main St P O Box ...

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