KEEP FOR FUTURE REFERENCE INSTRUCTIONS International Version P.O.
SPECIFICATIONS Model Number: MR1611LDCO Description: Designed for use with a crane or other hoisting equipment, the MR1611LDCO lifter employs vacuum to hold a load for lifting, and it provides manual 360° rotation movements for load manipulation.
WARNINGS Powr-Grip is pleased to offer the most reliable vacuum lifters available. Despite the high degree of security provided by this product, certain precautions must be observed to protect the operator and others. Always wear personal protective equipment that is appropriate for the material being handled. Follow trade association guidelines. Always operate the lifter under conditions approved for its design (see INTENDED USE: OPERATING ENVIRONMENT).
OPERATING FEATURES Note: Components featured in the following instructions for assembling, operating or maintaining the vacuum lifter are underlined on their first appearance in each section. Standard MR1611LDC shown with Dual Vacuum System and Remote Control System options.
STANDARD MOVABLE CONTROL PENDANT 1 ELECTRICAL CONNECTOR 2 Enclosure for MOVABLE CONTROL PENDANT 3 VACUUM LIFT LIGHT / ENABLE RELEASE BUTTON 4 APPLY/RELEASE SWITCH OPTIONAL REMOTE CONTROL SYSTEM 1 EMERGENCY TRANSMITTER DISCONNECT 2 TRANSMITTER POWER/ENABLE SWITCH 3 TRANSMISSION INDICATOR LIGHT 4 RELEASE BUTTONS (on TRANSMITTER) 5 APPLY BUTTONS (on TRANSMITTER) 6 RELEASE BUTTON (on RC ENCLOSURE) 7 APPLY BUTTON (on RC ENCLOSURE) 8 ENABLE BUTTON (on RC ENCLOSURE) 9 VACUUM LIFT LIGHT 10 LOW VACUUM WARNING BUZZE
ASSEMBLY TO SET UP THE LIFTER 1) Open the shipping container and remove all materials for restraining or protecting the vacuum lifter. Save the container for use whenever the lifter is transported. 2) 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: Maximum Load Capacity and Lifter Weight).
TO CHANGE THE PAD FRAME CONFIGURATION This lifter offers a variety of pad frame configurations to accommodate different load dimensions and weights (see illustrations). Configurations are created by installing or removing the pad frame’s outer, removable sections and removable pad arms, and/or by rotating the pad frame’s rotating pad arms. Some configurations also require the lift bar extension to be installed (see To Install the Lift Bar Extension to follow).
To Install (and Remove) the Lift Bar Extension The lift bar extension must be used whenever the pad frame’s removable sections are attached. Otherwise, the extended pad frame would strike the lift bail during rotation. The lift bar extension can be removed whenever the removable sections are not attached to the pad frame. 1) Support the lifter so that hoisting equipment is not required to hold it upright.
To Install (and Remove) Removable Pad Arms 1) Insert the end of a removable pad arm in one socket on the pad frame, so that the holes align for the cotterless hitch pin. 2) Secure the removable pad arm in the pad frame by pushing a cotterless hitch pin through the holes until the retaining ball emerges on the far side of the pad frame socket. COTTERLESS HITCH PIN 1 PULL RING 2 RETAINING BALL 3) Remove the end of the quick connector from the spring clip on the pad arm.
INTENDED USE LOAD CHARACTERISTICS WARNING: This lifter is NOT intended for lifting hazardous materials, such as explosives or radioactive substances. The operator must verify that the lifter is intended to handle each load, in accordance with the following requirements: • The load must not exceed the maximum allowable weight specified under Load Capacity (see SPECIFICATIONS). • The load must be a single piece of nonporous or semiporous material with a flat and relatively smooth contact surface.
OPERATING ENVIRONMENT The operator must determine whether the lifter is intended to be used in each work environment, in accordance with the following restrictions: WARNING: Never use lifter in dangerous environments. • This lifter is not intended for use in any environment that is inherently dangerous to the operator or likely to compromise the lifter's ability to function. Environments containing explosives, caustic chemicals and other dangerous substances must be avoided when using the lifter.
OPERATION BEFORE USING THE LIFTER The operator must determine whether the lifter is capable of performing each intended task, in accordance with the SPECIFICATIONS and INTENDED USE sections of this INSTRUCTIONS manual. In addition, all of the following preparations must be completed prior to lifting any load. Taking Safety Precautions The operator must be trained in all relevant industry and regulatory standards for the operation of the vacuum lifter in its geographical location (eg, ASME B30.
Confirming the Pad Frame Configuration WARNING: Load Capacity of lifter varies, depending on pad frame configuration. Make sure the pad frame has been assembled in the configuration that will provide optimal support of the load while lifting (see ASSEMBLY: TO CHANGE THE PAD FRAME CONFIGURATION). The pad frame configuration selected must be appropriate both for the weight and for the dimensions of the load in question.
TO APPLY THE PADS TO A LOAD Powering up the Lifter Place the lifter's power switch in the ON ( ) position.5 The blue indicator light remains illuminated while the lifter is powered up. Keep the power switch in the ON position while lifting a load. Any power interruption during a lift could result in the release of a load and possible injury to the operator or others (see TO LIFT AND MOVE THE LOAD: In Case of Power Failure to follow). WARNING: Never turn power off while lifting.
Sealing the Pads against the Load The apply/release switch is located on the movable control pendant. The movable control pendant allows the vacuum controls to be moved away from the lifter, so that the operator can control airflow at a distance equal to the length of the pendant cord. WARNING: Do not disconnect control pendant during lifter operation. The movable control pendant is not intended to be disconnected during lifter operation.
Vacuum Level on Optimal Surfaces When the lifter is attached to clean, smooth, nonporous load surfaces, it should be able to maintain a vacuum level in the green range on all 3 vacuum gauges, except when used at high elevations (see SPECIFICATIONS: Operating Elevation). If not, make sure the vacuum switch is adjusted correctly (see MAINTENANCE: VACUUM SWITCH ADJUSTMENT).
Monitoring Vacuum Indicators The vacuum lift light and the large vacuum gauge must remain completely visible to the operator, so that they can be monitored throughout the entire lift.10 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 automatically, as required to maintain sufficient vacuum for lifting the maximum load weight.
TO ROTATE THE LOAD EDGEWISE WARNING: Make sure load is positioned 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. Keep the load under control at all times, using hand cups or other appropriate means.
TO RELEASE THE PADS FROM THE LOAD WARNING: Load must be fully supported before releasing vacuum pads. Make sure the load is at rest and fully supported. The vacuum lift light on the movable control pendant also functions as a push-button switch. Press this enable release button and, at the same time, turn the apply/release switch to the “RELEASE” position (counter-clockwise) to force air into the vacuum pads, quickly breaking the vacuum seal.
AFTER USING THE LIFTER Leave the apply/release switch in the neutral position and place the power switch in the OFF position ( ). The blue indicator light shuts off when the operator powers down the lifter. If the lifter is equipped with a Remote Control System, also turn off the radio transmitter. CAUTION: Do not set the lifter against any surfaces which could soil or damage the vacuum pads.
MAINTENANCE WARNING: Always make sure battery is disconnected before servicing lifter. INSPECTION SCHEDULE Perform inspections routinely, according to the following frequency schedule: Every-Lift Inspection • Examine the vacuum pads and load surface for contamination or debris (see VACUUM PAD MAINTENANCE to follow). • Examine the vacuum pads, controls and indicators for visual damage (see VACUUM PAD MAINTENANCE to follow). • Test the battery for adequate charge (see BATTERY TEST to follow).
• Keep a written record of all Periodic Inspections. If any deficiency is detected during the inspection, correct it before using the lifter. If necessary, return the lifter to Wood’s Powr-Grip or an authorized dealer for repair (see LIMITED WARRANTY). Infrequent Use If a lifter is used less than 1 day in a 2-week period, perform the Periodic Inspection each time before using the lifter.
MAINTENANCE SCHEDULE Unless specified elsewhere in this INSTRUCTIONS manual, the lifter does not require maintenance on a routine basis. Instead, maintenance must be performed whenever a deficiency is indicated by routine inspections or tests. Any maintenance warranted must be performed before resuming normal operation of the lifter. BATTERY TEST The lifter is equipped with a battery gauge to help the operator evaluate whether the battery has adequate energy for lifting.
BATTERY RECHARGE CAUTION: Charge battery only while lifter’s power switch is in the OFF ( ) position. Operating the lifter when the battery charger is connected to an AC power source could result in permanent damage to the charger. Only use a battery charger supplied by or approved by Wood's Powr-Grip; other chargers may reduce battery life. Charge the battery as soon as possible after any extended use of the lifter, or whenever the battery gauge indicates diminished energy (see BATTERY TEST preceding).
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, slippage is more likely to occur. The Load Capacity of most Powr-Grip lifters is based on a friction coefficient of 1 (only Flat Lifters are exempt from this requirement).
WARNING: Never use unauthorized rubber cleaners or conditioners to clean vacuum pad. To prevent liquid from contaminating the vacuum system during cleaning, cover the suction hole in the recess for the filter screen or make sure the pad faces downward. Use a clean sponge or lint-free cloth to apply an authorized cleanser and wipe the pad face clean. A toothbrush (or similar brush with bristles that do not harm rubber) may be used to remove contaminates clinging to sealing edges.
4) Repeat steps 1-3 to verify the function of the second circuit of the vacuum system. Be sure to introduce the leak at a vacuum pad belonging to the second circuit. Correct any deficiency in the vacuum system before using the lifter. Contact Wood’s Powr-Grip or an authorized dealer for assistance. Release Function Test The Dual Vacuum System employs an adjustable relief valve, in order to actuate the pressurized release function.
AIR FILTER MAINTENANCE (for 4.4 oz [130 ml] bowl size filters) Filter Function and Conditions Requiring Service An air filter prevents solid particles and liquid from contaminating components in the vacuum system. CAUTION: Examine air filter regularly and empty when necessary. Liquid must not contact any portion of the filter element; remove trapped liquid regularly. Replace the element if it has an overall dirty appearance, or if there is a noticeable increase in the time required to attain full vacuum.
AIR FILTER MAINTENANCE (for 1 oz [30 ml] bowl size filters) Filter Function and Conditions Requiring Service An air filter prevents solid particles and liquid from contaminating components in the vacuum system. CAUTION: Examine air filter regularly and empty when necessary. Liquid must not contact any portion of the filter element; remove trapped liquid regularly. Replace the element if it has an overall dirty appearance, or if there is a noticeable increase in the time required to attain full vacuum.
VACUUM PUMP MAINTENANCE ― THOMAS 2907CDC22/12 WARNING: Before proceeding with any maintenance, disconnect power source. If the vacuum pump takes too long to attain full vacuum, it may require maintenance (see OPERATING FEATURES for location of pump). Replace the diaphragms, valve flappers or head gaskets as necessary to obtain acceptable pump performance (see REPLACEMENT PARTS LIST). Perform the following procedures on both heads of the pump.
VACUUM SWITCH ADJUSTMENT Vacuum Switch Function A vacuum switch controls the vacuum pump and the vacuum lift light for a DC lifter (see OPERATING FEATURES for location of vacuum switch). When the lifter's power switch is in the ON position ( ), turning the apply/release switch to the “APPLY” position activates the vacuum pump, which evacuates the vacuum pads.
Adjustment Procedure WARNING: Load capacity decreases whenever vacuum switch is adjusted to maintain lower vacuum level. 1) Using a 1/4" open-end wrench (as provided), turn the adjustment screw about 1/6th turn at a time (approximately one flat of the screw head). To maintain a lower vacuum level, turn the screw clockwise (when viewing vacuum switch from end with electrical connectors).
REPLACEMENT PARTS LIST Stock No. 66191 66189 66186 66183 66135 65443 65440 65438 65437 65429 65263 65244 65240 65212BB 65211AM 65211 65010 64709AM 64708AM 64682 64667 64590 64495 64464 64288 64283 64271 64262 64236 64200 64191 58197 58168 53132 53126 53120 49646T 49150 49122 29353 20270 16134 16132 Rev 1.
Stock No. 16057 16056 15911 15910 15650 15630 15333 13516 11124 11120 10900 10863 10834 10822 Description Qty. Quick Connector - 1/8 FNPS - Male End 16 Quick Connector - 1/8 FNPS - Female End 16 Vacuum Gauge - 1 1/2" [3.8 cm] Dia. - 1/8 NPT - CBM Type (aka "small vacuum gauge") 2 Vacuum Gauge - 2" [5.1 cm] Dia. - 1/8 NPT - CBM Type (aka "large vacuum gauge") 1 360° Rotating Union - 1/4 NPT 1 Pad Filter Screen - Large 16 Hose Fitting - Tee - 1/4" [6.
LIMITED WARRANTY Powr-Grip products are carefully constructed, thoroughly inspected at various stages of production, and individually tested. They are warranted to be free from defects in workmanship and materials for a period of one year from the date of purchase. If a problem develops during the warranty period, follow the instructions hereafter to obtain warranty service. If inspection shows that the problem is due to defective workmanship or materials, Powr-Grip will repair the product without charge.
LOW VACUUM WARNING BUZZER SPECIFICATIONS Maximum Alarm Volume: 103 dBa at 2' [60 cm] Function: While the lifter is powered up, an audible alarm warns the operator whenever vacuum is not sufficient for lifting the maximum load weight. OPERATION Before Using the Lifter WARNING: Make sure alarm is clearly audible over ambient noise at operator position. The volume of the alarm may be adjusted by rotating the shutter of the low vacuum warning buzzer.
If the vacuum system experiences leakage while the lifter is attached to the load, the vacuum pump turns on automatically, as required to maintain sufficient vacuum. The alarm also sounds while the pump is running, to signal the reduction in vacuum to the operator. If the alarm sounds while you are lifting a load, make sure the vacuum gauge shows a vacuum level of 16" Hg [-54 kPa] or higher. If not, immediately move away and stay clear of the load until it can be lowered to the ground or a stable support.
