Toro 38065, 38080 manual General Information, Auger Gearbox Lubricant, Gearbox Removal

Chapter 1 — Auger Gearbox Service

GENERAL INFORMATION

The manual takes a systems approach. There are two versions of the auger gearbox and three versions of the traction drive system used among the various 2-stage models.

For information on the auger drive or linkage adjustments see the section titled Belts, Controls and Linkages.

The lubricant level in a gearbox should be checked prior to each season.

AUGER GEARBOX LUBRICANT

Two different lubricants are used in the various models. They are NOT interchangeable. Use the lubricant specified in the model chart.

90 wt. indicates a 90-weight gear oil. A multi weight such as 85-120 is acceptable as long as it encompasses the 90 weight. The oil used must also have an extreme pressure (EP) rating of GL5 or higher. Fill until it runs out of the fill check plug (Figure 1).

1

Figure 1 DSC-0168

1. Check/fill plug

MAG 1 is a special low temperature grease made by Lubriplate™. Use 1/3 tube of MAG 1 per gearbox. Obtain from your area Lubriplate Distributor or from your Toro parts supplier (Toro Part Number 505-101) (Figure 2).

Figure 2 MVC-458

Should you see an oil leak, disassembly is required. Lubriplate MAG 1 is thick so it will normally not leak out even with a failed seal. The bearings used in all applications are oil impregnated, so they do not require regular maintenance. Internal gearbox repair will require removal from the chassis.

GEARBOX REMOVAL

There are two methods commonly used to remove the auger gearbox:

•The primary method is to remove the auger assembly without separating the traction assembly from the auger housing.

•The secondary method is to separate the auger and traction assemblies. Separating the auger and traction assemblies improves access if the auger is difficult to remove.

Two Stage Snowthrower Drive Systems Manual 1 - 1