KEEP FOR FUTURE REFERENCE INSTRUCTIONS P.O.
SPECIFICATIONS Model Number: EO3VLW Description: The Vacuum Loss Warning Buzzer is an optional warning device with an independent power source. The Warning Buzzer monitors vacuum during lifter operation and sounds an audible alarm if the lifter fails to reach or maintain the vacuum level required for lifting. The monitoring system automatically turns on when the lifter attaches to a load, and automatically turns off when the load is released.
OPERATING FEATURES Note: Components featured in the following instructions for installing, using or maintaining the Vacuum Loss Warning Buzzer are underlined on their first appearance in each section. 1 VACUUM HOSE FITTING CONNECTING TO IN-LINE FILTER Rev 9.
INSTALLATION 1) Remove the Vacuum Loss Warning Buzzer from its protective packaging. 2) Follow the vacuum lifter's instruction manual to verify that it is in good working order before installing the Warning Buzzer. 3) Locate a place on the lifter where the Warning Buzzer can be mounted without interfering with the function or operation of the lifter. 4) Remove the cover of the Warning Buzzer to access the mounting screw holes. 5) Mount the Warning Buzzer on the lifter with four 10-32 screws.
OPERATION BEFORE USING THE LIFTER All of the following preparations must be completed prior to operating a vacuum lifter with the Vacuum Loss Warning Buzzer installed. The operator must read and understand this INSTRUCTIONS manual, including all WARNINGS. If necessary, contact Wood’s Powr-Grip or an authorized dealer for assistance. Perform all inspections and tests required by the INSPECTION and TESTING SCHEDULES (see MAINTENANCE).
DURING LIFTER OPERATION Using the Vacuum Loss Warning Buzzer does not supersede any safety practices required by the lifter’s manufacturer. The operator must continue to respect all cautionary statements in the lifter instructions, even after the Warning Buzzer is installed. WARNING: Warning Buzzer does NOT supersede required safety practices. Operate the vacuum lifter as directed in its operating instructions.
MAINTENANCE INSPECTION SCHEDULE Perform inspections of the Vacuum Loss Warning Buzzer routinely, according to the following frequency schedule: Frequent Inspection (following every 20-40 hours’ use; or whenever Warning Buzzer is out of service for 1 month or more) • Test the battery strength (see BATTERY TEST to follow) • Examine the in-line filter connected to the Warning Buzzer to make sure its desiccant has not been expended: The desiccant shows a blue coloration when new and turns progressively more p
TESTING SCHEDULE Perform these tests when installing the Vacuum Loss Warning Buzzer initially and each time following a repair or modification. Correct any deficiency and retest before using the Warning Buzzer. • Perform a vacuum leak test as directed in the lifter's instruction manual. • Test all features and functions of the Warning Buzzer (see OPERATING FEATURES, OPERATION and MAINTENANCE).
VACUUM SETTING ADJUSTMENT Function and Conditions Requiring Adjustment If the Vacuum Loss Warning Buzzer is functioning normally, its monitoring system is activated at a low vacuum level, which is attained as the lifter attaches to a load. Vacuum should continue to increase until it reaches the level required for lifting the maximum load weight (hereafter, the “minimum lifting level”), as indicated in the lifter’s operating instructions.
REPLACEMENT PARTS LIST Stock No. Description Qty. 65438 1/8" ID Vacuum Hose 1 64752 Audio Alarm - 5-15 V DC - Panel Mount 1 64691 9-Volt Alkaline Battery 1 64200 Push-Button Test Switch 1 56496 Circuit Board Assembly 1 53126 1/4" x 1/8" x 1/4" Barbed Brass Tee Fitting 1 16101AM In-Line Filter 1 15210 1/8" Barbed Nylon Tee Fitting 1 SERVICE ONLY WITH IDENTICAL REPLACEMENT PARTS SUPPLIED BY OR APPROVED BY WOOD'S POWR-GRIP CO., INC. Rev 9.
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 9.
