Toro TRX-20 Operator's Manual page 43

Problem
The trencher does not dig fast enough
Possible Cause
1. The digging teeth are worn.
2. The chain you are using is not
appropriate for the type of ground.
3. The hydraulic system is overheated.
4. The hydraulic system is obstructed,
contaminated, or damaged.
43
Corrective Action
1. Replace the digging teeth.
2. Evaluate the ground type and change
chains if necessary.
3. Shutdown and allow the system to cool.
4. Contact your Authorized Service
Dealer.