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All operating manuals state a few other tasks that should be done monthly or yearly, such as checking speed and throttle adjustments, changing the spark plug, etc.

"Some manufacturers, like Multiquip/Mikasa, offer an hour meter/tachometer that allows the operator to monitor when service is needed," Bennett points out.

Operating hints
To avoid accelerated wear during use, avoid running the rammer at the wrong engine speed. "A common mistake is to run a rammer at low RPM levels where the clutch is not fully engaged," says Price. "The constantly slipping clutch develops potentially damaging heat and wears itself out."

Overspeed at idle can also damage the power transmission clutches, says Salinas.

"With some machines, the operator needs to remember to shut the fuel valve so it doesn't flood the engine," Boor states. "Our machine has an electronic shutoff that not only kills the engine, but also shuts down the fuel flow."

Over compaction can lead to equipment damage, as well. "This practice actually decreases compaction density and can separate the aggregates," Price notes. "It also damages the machine by forcing the energy back into it instead of into the soil. If the rammer begins to jump erratically, it's a clear sign you've overcompacted the soil."