Black Max BM254BV Operator's Manual page 14

THROTTLE LOCK
See Figure 14.
The throttle lock can be used to operate the blower without
holding the throttle trigger.
To engage the throttle lock:
 Pull throttle lock back towards user, and stop at the
desired throttle setting.
 To release the throttle lock, push throttle lock all the way
towards the front of unit.
VACUUM OPERATION
See Figure 15.
WARNING:
Never run the unit without the vacuum tubes and vacuum
bag installed. Failure to do so could result in serious
personal injury.
WARNING:
Always wear eye protection with side shields marked to
comply with ANSI Z87.1, along with hearing protection.
Failure to do so could result in objects being thrown into
your eyes and other possible serious injuries.
WARNING:
Keep the muffler and all hot surfaces of the blower/
vacuum away from your body. Failure to do so could
result in possible serious personal injury.
OPERATION
 Install the vacuum tubes, vacuum handle, and bag. Refer
to the Assembly section earlier in this manual.
 Start the engine. Refer to Starting and Stopping earlier
in this manual.
 Place the vacuum bag strap over your right shoulder.
Hold the upper handle in your left hand and the vacuum
handle in your right hand.
 Move the vacuum from side to side along outer edge of
the debris. To avoid clogging, do not place the vacuum
tube directly into the debris pile.
 Hold the engine higher than the inlet end of the vacuum
tube.
 Always point vacuum tube downhill when working on a
hillside.
 To avoid injury to the operator or unit, do not pick up
rocks, broken glass, bottles, or other similar objects.
 If the vacuum tubes should clog, stop the engine and
disconnect the spark plug wire before cleaning out the
obstruction.
 Remove the vacuum tubes and clear the debris from
the blower fan housing. Remove the bag and clear the
adaptor. A small rod or stick may be required to clear the
entire tube length. Ensure that all debris has been cleared
before reassembling the vacuum tubes.
10 — English