Operation, Lubrication, and Maintenance Instructions

Congratulations! You have just received one of the highest precision and most durable gearboxes made. The spiral bevel gearboxes provide low backlash torque transmission. The speed correction drives allow for precise registration, timing, and narrow range speed control. Please read the following information to maximize the benefits of owning a Tandler gearbox.

Operation

Tandler gearboxes are inspected, tested, and filled with the proper amount of oil, ready for operation. The optimal performance of these gearboxes is based on a number of factors including the application of service factors as well as proper mounting, lubrication, and maintenance procedures. Speed and torque capacities vary by gearbox size and ratio.

Mounting

Normal mounting assumes all shafts are in a horizontal plane so that all bearings and gears are in the oil bath. If any shafts are in a vertical plane, alternate lubrication options may be necessary.

Connecting the gearbox to the driver and load also requires critical considerations. When driving with a sprocket, belt, or gear radial load calculations must be made. When connecting with couplings, proper alignments within the coupling specifications are necessary to avoid bearing wear.

Lubrication

The oil or grease within the gearbox lubricates as well as cools the gearbox. The majority of heat is generated by oil shear, bearing friction, and seal friction. During normal operation and speeds, the gears and bearings are adequately lubricated by oil splash and misting. An acceptable temperature range is up to 100° C (212° F), normally seen at maximum design speed. If higher temperatures are being generated, additional cooling methods will be required.

A standard viscosity oil is included with each gearbox. Although alternate oil viscosity can be used, depending on the application, we do not recommend using heavy weight gear oil! This type of oil may cause excessive heat and gear tooth wear.

Speed

The maximum speed capacity of a gearbox is a function of the size, ratio, lubrication, and ambient conditions. Larger boxes with lower ratios can not operate as fast as others because of high pitch line velocities and friction levels. Contact your DieQua representative when approaching the speed limits specified in the engineering catalog. Alternate lubrication options or cyclic operation may allow for higher speeds.

Maintenance

Proper maintenance is necessary for getting the optimal performance and longest life out of your gearbox. Standard oil change intervals are after the first 500 hours, then every 2000 hours. Lower duty cycles or the use of synthetic oils may allow for longer change intervals. Continuous high speed or heavy load applications could require shorter change intervals.

It is also important to maintain the proper oil level. Too little oil results in insufficient lubrication and cooling. Too much oil can cause overheating due to excess shear friction. Standard sight level sight glasses and optional external oil gauges are available to monitor the gearbox oil level.

Oil Guage Position

For all spiral bevel gearboxes and speed correction drives, the oil sight glass is located in position 1. The exception is for B1, C1, D1, E1, and F1 spiral bevel gearboxes with a ratio of 1:1 - the oil sight glass is located in position 2.

Suggested Lubricants

Oil Quantities - Spiral Bevel Gearboxes

Oil Quantities - Speed Correction Drives

Complete Repair Service

While spare parts are available, the precision assembly required is recommended to be done by trained personnel. DieQua Corporation offers complete repair services for these products.

In the unlikely event a repair or failure analysis is required, we suggest you send the product back to us. We will evaluate the product, free of charge, and advise you of costs prior to any further action. While standard repairs may take a few weeks, emergency services are always available.

Before returning any products, we request that you call your Sales Support Representative to discuss the problem and receive an RMA number. Documentation will be created and your return will be processed promptly upon receipt.

All products should be packed securely with connecting components removed. Freight should be prepaid and the RMA number prominently displayed. A representative will call you, after evaluation is complete, to discuss the proper course of action.