4.
Pull the attachment lift lever back to the R
AISE
position
until the boom is in the T
RANSPORT
position.
5.
Move the throttle to the I
DLE
position, shut off the
engine, and remove the key.
Operating Tips
•
Clean the area of trash, branches, and rocks before
trenching to prevent damaging the equipment.
•
Always select the shortest boom, the lightest chain, and
the lightest teeth to handle the job. In hard digging
conditions, select a high tensile-strength chain, a rock
boom, and an anti-backflex chain with rock and frost
teeth.
•
Always begin trenching with the slowest ground speed
possible. Increase the trenching speed if conditions
permit. If the chain speed slows down, reduce the ground
speed to keep the chain moving at its fastest rate. Do not
spin the wheels while trenching.
•
Always use full throttle (maximum engine speed) when
trenching.
•
Always trench while the machine is moving in the forward
direction.
•
Trench with the chain at a 45- to 60-degree angle for
best results.
•
You can dig a trench faster by controlling the depth and
adjusting the boom periodically.
•
If the trencher binds in the soil, reverse the chain
direction. Once the chain is loose, change chain directions
and continue trenching.
•
If you need the finished trench to be cleaner than what is
possible with the trencher, you can purchase a crumber
from an Authorized Toro Service Dealer. The crumber,
which mounts onto the restraint bar, scrapes the trench
clean as you dig.
•
If the digging speed of the trencher is too slow or too
fast, adjust it.
•
Use the correct chain for the ground conditions; refer to
Selecting the Proper Chain (page 13)
.
•
To obtain maximum digging efficiency from the trencher,
always keep good sharp teeth at the necessary spaces. As
teeth become worn, replace them immediately.
•
Some ground conditions may require a faster chain speed.
Move the chain speed control further forward from the
N
EUTRAL
position. You can reduce the life of the digging
chain by using it at higher chain speeds for an extended
time.
17
