Special Situations - terrasaw TS-400 Operator Owner's Manual

1. The special Terrasaw digging tooth and tooth pattern is specifically designed
to provide maximum digging speed in common soils with minimum friction
and engine loading. However when digging in very compacted ground, hard
clay pans etc. changing to the Terrasaw Alternative Dig Pattern Chain (refer
pages 14 & 15) may be required. This pattern will assist in trench clearing.
To do this simply slacken and remove the digging chain, and swap for the
Alternative Dig Pattern Chain (Supplied with new machines).
2. For digging in light or sandy soils containing fine hard stones, use the
following technique. The Terrasaw digging chain should be at speed before
contacting the ground surface and when the trench is complete, lift the blade
clear before throttling off. This reduces the chance of stones jamming the
nose sprocket. In these conditions it is also an advantage to run the chain
with twice the normal amount of slack.
3. When digging at full depth in difficult wet pliable clays, it is advisable to
take three or four passes to achieve the desired final depth, as this reduces
operator fatigue and undue strain on the powerhead anti-vibration mounts.
4. When cutting curves or radius cutting (e.g. concrete lawn edgings, footings,
building foundations, etc.) it is advisable to use several shallow cuts rather
than a single cut at full depth.
5. When digging a trench across a farm road or raceway (e.g. for underground
water pipes or electric fence cable), it is advisable to first loosen the compacted
gravel/stones along the desired line. Use a pick or similar tool and remove
any large rocks before trenching to avoid damaging your Terrasaw digging
teeth.

Special Situations

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