How to Use This Manual Table of Contents …

1 How to Use this ManualThis Manual provides detailed instructions on installation andmaintenance of gear drives and couplings. Use the Table ofcontents below to locate required FOLLOW THE INSTRUCTIONS IN THISMANUAL FOR OPTIMUM PERFORMANCE AND TROUBLEFREE of ContentsInstallation 1 thru 3 Shaft 4 thru 8 Preventive & Inactive Gear for long service and dependable operation of a geardrive is often given to the engineers who designed it, or thecraftsmen who constructed it, or the sales engineer whorecommended the type and size. Ultimate credit belongs to themechanic on the job who worked to make the foundation rigidand level, whoaccuratelyaligned the shafts and carefullyinstalled the accessories, and who made sure that the drivereceived regular lubrication. The details of this important jobare the subject of this Operate Falk gear drives only at horsepower,speed and ratio shown on nameplate. Before changing anyone of these, submit complete nameplate data and newapplication conditions to the Factory for correct oil level, partsand application & ASSEMBLY Disassembly & assemblyinstructions and parts guides are available from the Factory orFalk Representatives.

2 When requesting information, please givecomplete data from the nameplate on the gear drive; Model, Number, Date, RPM, and :Consult applicable local and national safetycodes for proper guarding of rotating members. Lock out powersource and remove all external loads from drive beforeservicing drive or Falk Corporation (the Company ) warrants that, for aperiod of one year from the date of shipment, the productdescribed herein will deliver successfully its rated output asindicated on the nameplate, provided, it is properly installedand maintained, correctly lubricated, and operated in theenvironment and within the limits of speed, torque or otherload conditions for which it was sold. Such product is expresslynot warranted against failure or unsatisfactory operationresulting from dynamic vibrations imposed upon it by the drivesystem in which it is installed unless the nature of suchvibrations has been fully defined and expressly accepted inwriting by the Company as a condition of InstructionsThe following instructions apply to all standard Falk Type MDX andMDH gear drives.

3 If a drive is furnished with special features, referto the supplementary instructions shipped with the drive. The MDXM ixer is a right angle drive with vertical or horizontal output shaftdesigned primarily for mixer service. The basic drive is designed forpedestal mounting but may be furnished with a Falk mounted (bolton) adapter base or with an independently supported output (stub)shaft and pedestal base (MDXT).The standard drive may be furnished with a solid output shaft orhollow output shaft. A low speed shaft drywell feature isstandard on vertical drives with either solid shaft extensiondown and with hollow shaft and may be furnished as an optionon solid shaft extension up drives. Upper low speed bearings ofall vertical drives and lower low speed bearings of drives withdrywells are grease MDXT drive is furnished with an output (stub) shaftindependently supported by spherical roller bearings inexternally mounted upper and lower bearing members (upperbearing cage and pedestal base).

4 The output shaft is flexiblecoupling connected to the drive hollow shaft and the drivefoundation is integral with the pedestal base. The standardMDXT output shaft is furnished with an integral coupling low speed shaft extension ends of solid shaft drives aredrilled and tapped (2 holes) for thrust coupling keeper plates,refer to Shaft Connections on Page CAUTION:Mount drive only in the positionfor which it was ordered, , horizontal base for MDX orhorizontal low speed shaft for MDH. If it is necessary to mountthe drive in a different position from that for which it wasordered, consult The Falk Corporation for changes necessary toprovide proper Falk Corporation, Box 492, Zip 53201-0492308-0503001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: 414-352-3131 March 1995 Fax: 414-937-4359 e-mail: web: 9-90 a good name in industryRAM Mixer Drives Installation and Maintenance InstructionsTypesMDX, MDXQ, MDXT, MDH & MDHQ Sizes 300 thru 900(Page 1 of 8)MDXUMDXQMDHQMDXTMDXDThe basic RAM drive is designed for pedestal mounting (customersupplied) with a bolt circle on the housing underside that isconcentric about the low speed shaft.

5 The lower low speed sealcage or end cover has a close tolerance machined outside(register) diameter for accurate positioning of the drive on thepedestal. Refer to Table 1 for housing mounting bolt circle Falk supplied adapter base (optional) is registered on thelower seal cage or end cover and uses the same bolting asused for customer pedestal MDXT drive with an independently supported output shaft issupplied with a pedestal base which has a unique foundationbolt Do not weld on the gear drive or accessorieswithout prior approval from The Falk Corporation. Welding onthe drive may cause distortion of the housing or damage to thebearings and gear teeth. Welding without prior approval couldvoid the OF SOLAR ENERGY If the gear drive operates inthe sun at ambient temperatures over 100 F(38 C), then specialmeasures should be taken to protect the drive from solar protection can consist of a canopy over the drive or reflectivepaint on the drive. If neither is possible, a heat exchanger or othercooling device may be required to prevent the sump temperaturefrom exceeding the allowable , GENERAL To facilitate oil drainage, elevatethe gear drive foundation above the surrounding floor level.

6 Ifdesired, replace the drive oil drain plug with a valve, but provide aguard to protect the valve from accidental opening or , CONCRETE If a concrete foundation is used,allow the concrete to set firmly before bolting down the gear drive. Forthe best type of mounting, groutstructural steel mounting padsinto the mounting base, asillustrated, rather than groutingthe drive directly into , STEEL When mounting gear drive onstructural steel, it is recommended that an engineered design beutilized for a pedestal, adapter base or bed to provide sufficientrigidity, to prevent induced loads from distorting the housing andcausing gear misalignment. In the absence of an engineereddesign, it is recommendedthat a base plate, withthickness equal to orgreater than the thicknessof the drive feet, besecurely bolted to steelsupports and extend underthe entire drive asillustrated. Refer to Fastener TighteningTorques on Page DRIVE ALIGNMENT Align drive with driven equipmentby placing broad, flat shims under all mounting pads.

7 Start at thelow speed shaft end and level across the length and then the widthof the drive. Check with a feeler gauge to make certain that all padsare supported to prevent distortion of housing when drive is bolteddown. After drive is aligned with driven equipment and bolted down,align prime mover to drive input shaft. Refer to Page 3 for equipment is received from Falk mounted on a bedplate, thecomponents were accurately aligned at Falk with the bedplatemounted on a large, flat assembly plate. Shim under thebedplate foot pads until the gear drive is level and all feet arein the same high speed shaft coupling alignment. If the coupling ismisaligned, the bedplate is shimmed incorrectly. Re-shimbedplate and recheck high speed coupling alignment. Ifnecessary, realign OUTPUT SHAFT When the drive ismounted for horizontal output, the torque reaction can betransmitted through the adapter base, pedestal, tie rod, or acombination thereof. The Falk tie rod may be mounted aboveor below the drive and its angular position may vary as other positions, refer to the factory.

8 If it is necessary toshorten the tie rod, cut off the excess from either threaded support to which the clevis bracket is to be fastened mustsustain the torque reaction shown in Table 2. Use Grade 5fasteners to anchor the clevis bracket; tighten to torquesspecified in Fastener Tightening Torques on Page the tie rod to both the clevis bracket and the drive anchorbracket and tighten bolts until seated against the brackets. DONOT bend the brackets. Clearance between the clevis bracketsand tie rod is required. a good name in industryThe Falk Corporation, Box 492, Zip 53201-0492308-0503001 W. Canal St., Zip 53208-4200 Milwaukee, WI USA Telephone: 414-342-3131 March 1995 Fax: 414-937-4359 e-mail: web: 9-90 Installation and Maintenance Instructions RAM Mixer Drives(Page 2 of 8)Sizes 300 thru 900 TypesMDX, MDXQ, MDXT, MDH & MDHQTABLE1 UnitHousing to Pedestal/AdapterBase Bolting DataUnit SizeQuantityFastener Size Bolt CircleRegister Dia. -NomHousingThread BRACKETS The weight, location and startingtorque of the motor will cause some brackets to deflectdownward and to twist.

9 this movement is within allowableengineered limits for motor-drive selections from the Falkbulletin. If the customer considers the movement excessive,jackscrew supports for the bracket extension are available fromFalk. To compensate for deflection caused by heavy motorsAND to get CORRECT COUPLING ALIGNMENT, use moreshims under the rear motor feet than the front and other components mounted on motor plates ormotor brackets may become misaligned during check alignment after installation. Refer to ShaftConnections for coupling alignment ConnectionsWARNING:Provide suitable guards in accordance withOSHA DISC CONNECTIONS Shrink disc assemblies usedon drives with a horizontal and hollow low speed shaft, requirespecial installation procedures and have metric fasteners. Refer tothe supplementary instructions supplied with the shrink CONNECTIONS The performance and life ofany coupling depends largely upon how well the coupling isinstalled and serviced. Refer to the coupling manufacturer smanual for specific METHODHeat interference fittedcoupling hubs, pinions,sprockets or pulleys to amaximum of 275 F(135 C) and slide ontogear drive METHODDO NOT drive couplinghub, pinion, sprocket orpulley onto the shaft.

10 Anendwise blow on theshaft/coupling may damagegears and COUPLINGS (Except fluid type) Detailed installationmanuals are available from the Factory, your local FalkRepresentative or Distributor just provide size and typedesignations stamped on the coupling. Forlubricantrequirements and a list of typical lubricants meeting Falkspecifications, refer to appropriate coupling service TYPE RIGID COUPLINGS are typically used ondrives with vertical output shafts. The low speed shaft extensionends of the solid shaft drives are drilled and tapped toaccommodate coupling keeper plates. Tightening torques forfasteners, including keeper plate fasteners are listed in Table FLUID COUPLINGS Refer to the installation manualfurnished with the fluid coupling forinstallation, alignment and & ANGULAR ALIGNMENT Ifpossible, after mounting coupling hubs,position the driving and driven equipmentso that the distance between shaft ends isequal to the coupling gap. Align theshafts by placing a spacer block, equal inthickness to required gap, between hubfaces, as shown above, and also at 90 intervals around the with Falk Corporation, Box 492, Zip 53201-0492308-0503001 W.