KEEP FOR FUTURE REFERENCE INSTRUCTIONS International Version P.O.
TABLE OF CONTENTS SPECIFICATIONS ............................................................................................................ 3 WARNINGS ..................................................................................................................... 4 OPERATING FEATURES ................................................................................................... 5 ASSEMBLY .............................................................................................................
VACUUM PAD MAINTENANCE...................................................................................................... 17 Friction Coefficient .....................................................................................................................................17 Inspection .................................................................................................................................................17 Cleaning ...........................................................
SPECIFICATIONS Model Number: MT89AC Description: Designed for use with a crane or other hoisting equipment, the MT89AC lifter employs vacuum to hold a load for lifting, and it provides manual 90° tilt movement for load manipulation. Power Source: See serial number plate for specific AC voltage, frequency and amperage.
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 MT89AC shown. Rev 14.
ASSEMBLY 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: Load Capacity and Lifter Weight).
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.
TO APPLY THE PADS TO A LOAD Generating Vacuum Flow Place the power switch in the ON ( ) position. This engages the vacuum pump, causing vacuum to be drawn immediately at the vacuum pads.4 WARNING: Never turn power off during operation; keep pump running throughout lift. The lifter is designed for the vacuum pump to run continuously.
Reading the Vacuum Gauge The vacuum gauge indicates the current vacuum level in the lifter’s vacuum system. The green range indicates vacuum levels sufficient for lifting the maximum load weight, whereas the red range indicates vacuum levels that are not sufficient for lifting the maximum load weight. The gauge needle should show a sudden surge in vacuum as the vacuum pads seal against the load.
TO LIFT AND MOVE THE LOAD Positioning the Lift Bar WARNING: Lift bar must be oriented vertically to lift load. Never lift the load from a flat position with the lift bar latched parallel to the load. Always disengage the tilt latch (see TO TILT THE LOAD to follow) and raise the lift bar to a vertical orientation before attempting to lift. Load Capacity and the Lift Lights A lifter's Load Capacity is rated at a vacuum level of 16" Hg [-54 kPa] (see SPECIFICATIONS).
Controlling the Lifter and Load When the vacuum indicators show that the lifter is ready, use the hoisting equipment to raise the lifter and load as needed to clear any obstacles in their path. Use the control handles to keep the lifter and load in the desired orientation while they are suspended from the hoisting equipment. Once sufficient clearance is established, the load can be tilted as desired (see TO TILT THE LOAD to follow).
AFTER USING THE LIFTER Place the power switch in the OFF ( ) position. CAUTION: Do not set the lifter against any surfaces which could soil or damage the vacuum pads. Built-in parking feet can be used to support an unloaded lifter when not suspended from a crane: Make sure the pad frame is oriented vertically with the parking feet at the bottom. Use the hoisting equipment to gently lower the lifter until the parking feet support its entire weight.
MAINTENANCE WARNING: Make sure power source is disconnected before servicing lifter. Note: One or more wiring/hose routing diagrams may be provided in the final section of this INSTRUCTIONS manual for reference when servicing the lifter or trouble-shooting a deficiency. 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).
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. TESTING SCHEDULE Perform these tests when placing the lifter in service initially and each time following a repair or modification.
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.
Cleaning Regularly clean the face of each vacuum pad to remove oil, dust and any other contaminates. Acceptable cleaning agents include soapy water and other mild cleansers. Do not use solvents, petroleum-based products (including kerosene, gasoline and diesel fuel) or any harsh chemicals for cleaning.
AIR FILTER MAINTENANCE − LARGE (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.
VACUUM PUMP MAINTENANCE − GAST 0523-101Q-SG588DX WARNING: Before proceeding with any maintenance, disconnect power source. Disassembly/Reassembly Procedure (includes replacing the air filters, vanes and gasket–see REPLACEMENT PARTS LIST) 1) Remove the end caps (10), O-rings (9) and air filters (8) from the sound chamber (6) of the vacuum pump. 2) Remove the five bolts (7) and remove the sound chamber (6).
VACUUM PUMP MAINTENANCE − GAST DAA-V505-GB/D WARNING: Before proceeding with any maintenance, disconnect power source. If the vacuum pump takes too long to attain full vacuum, it may require maintenance. Replace worn parts as necessary to obtain acceptable pump performance (see REPLACEMENT PARTS LIST). Perform the following procedures on both heads of the pump. Replacing a Diaphragm 1) Loosen screws as necessary to remove the head (1) and the valve plate (6).
VACUUM SWITCH ADJUSTMENT Vacuum Switch Function A vacuum switch controls the vacuum lift light for an AC lifter (see OPERATING FEATURES for location of vacuum switch). After the lifter attains a vacuum level sufficient for lifting the maximum load weight (hereafter, “minimum lifting level”), the vacuum switch automatically turns on the lift light.
REPLACEMENT PARTS LIST Stock No.
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.
Rev 14.
Rev 14.
Rev 14.
Rev 14.
Rev 14.
