Robin Gas Backpack Vibrator Model 402 Specifications | Ordering Information | Service Manual (1.88MB PDF)   Lightweight, Portable and FULL POWERED! This compact, gas powered concrete vibrator will drive any size Square Head at electric vibrator speeds. You can go anywhere the job is without the extension cord. Model 402BP Runs up to speed in the mix Durable 40cc gas engine Compact, reliable gear increaser Heavy duty clutch Swivel mounted, isolated frame Quick disconnects for easy storage Backpack features allow the operator to match the vibrator speed with the mix. Dial type variable speed control    Operator can lock-in the proper maximum    speed for Square Head size Visual readout indicator    Digital tachometer indicates vibrator speed    so operator can adjust vibration Speed increaser    Provides a positive mechanical drive, no    slippage effecting head speeds   Wyco Tool 8635 Washington Avenue, Racine, WI 53406 TEL: 262-639-6770 or 800-233-9926 FAX: 262-639-2023 or 888-992-6872 E-mail: wycosales@wycotool.com MADE IN USA © 2010 Racine Federated Inc. All rights reserved.