Brown Products TrenchMaster (F-1202) - Manual (Page 8)

Starting Engine Continued
d. Pull start cord rapidly.
e. When engine starts, gradually open choke and let engine warm up at about
1/4 speed.
WARNING:
Do not operate machine without rotor hood installed
and secure.
WARNING:
Do not operate the machine within a 50’ radius of people,
animals, automobiles or glassed areas which might be damaged by projectiles.
WARNING:
Operator must wear eye protection when operating the
TRENCHMASTER
®
.
WARNING:
Operator must locate and stay clear of all underground
gas, electric, water and communications lines before starting trenching
operation.
CALIFORNIA PROPOSITION 65 WARNING: Engine exhaust from this product
contains chemicals known to the State of California to cause cancer, birth
defects, or other reproductive harm.
4. Operation
a. To start trenching, set throttle full open. Before engaging the clutch lever,
the handle must be pushed toward the ground enough to allow the rotor to
turn without hitting the ground. When rotor attains operating speed, the
handle should be raised slowly so that the rotor engages the ground and
gradually digs to trench depth.
b. When trench depth is achieved, the operator should pull the machine to the rear
at such a speed that the trencher will dig without overloading the engine.
WARNING:
Starting the trench is the most critical time for dangerous
flying projectiles. Be especially cautious by policing the area for rocks or
other possible projectiles and ensure the area is completely clear of people,
animals, vehicles, etc. that may be damaged by projectiles.
c. When trenching, if trencher strikes an underground object, stop
immediately to determine what the object is. Investigation should be done
visually since touching an exposed electric wire could be fatal.
d. When trencher strikes a rock either the trench or rock should be moved unless
your trencher is equipped with the rock rotor. If it has the rock rotor, then
proceed slowly with a constant pressure against the rock. If the rock doesn’t
begin to crush or move after a few seconds, it may be necessary to remove
the rock because the rock rotor can’t cut through rock requiring more than
10,000 P.S.I. to crush.
e. When digging in extremely hard clay or other difficult soils, it may sometimes
be necessary to use an oscillating action by applying and releasing pressure
on handlebar, front to rear, alternately.
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