As a Scag Tiger Cub owner/operator since 2008 and a retired mechanic, I have only run into a few minor problems with my machine, and with some folks both here and actual servicing.
Somewhere in Scag service info, I found that Scag recommends a 400 hour replacement of the pump drive belt on Tiger Cub, Tiger Cat and Wildcat machines. I don't recall Scag specifying a calendar belt change interval.
Under the control panel and next to the keyswitch, is the cranking relay, it has been known to be somewhat problematic. Keeping several in your parts stash may be a good idea. When all the safety circuits are set, the electronic control module will ground the cranking relay and allow it to electrically operate, cranking the engine.
The seat switch is another sometimes problem item as it is also in the safety circuit. It's position under the seat, puts it close to dust and dirt sources.
Another item is the Scag hourmeter. Scag uses the same hourmeter under two part numbers depending on which machine it is installed. These hourmeters have a non replaceable internal battery that keeps the LCD and memory alive. When installed on a Tiger Cub, Tiger Cat or Wildcat, they only clock time when the voltage in the electrical system is above a specific threshold, which is when the engine is running and the charging system output voltage is above the threshold. During normal mowing operation, as the electric clutch warms up, it draws more amperage. As this happens, the system voltage can drop below the hourmeter voltage threshold and stop clocking time. This will give the operator a false record of machine time as the actual machine time may be much more than is recorded on the hourmeter.
When this hourmeter is used under another part number on other Scag models, it is connected differently and clock time any time that the keyswitch is in the on position. The hourmeter has three electrical terminals on the bottom. The ground terminal and one other are used for Cubs and Cats. The same ground and the other terminal are used on other Scag models. The connector plug for the hourmeter determines this, however it is easily changed over.
Since 2008, I have had three hourmeters on my Tiger Cub, the first two being Scag meters, the 3rd and current meter being an analog meter, no internal battery, more reliable. The rectangular analog hourmeter fits in the same hole, just need to drill two small screw holes that hold it in place.
None of these are serious problems and many other makes of machines have similar problems.
The current Tiger Cat models are basically Tiger Cubs that have been upgraded. The Wildcat has been discontinued.
In another thread, I will chat about how Scag connects the engine charging system output to the electrical system.
Mad Mackie in CT:smile::biggrin::laughing: