2008 39 500XOPTRS
AUTO SWEEP INTERRUPT (OPTIONAL)
DESCRIPTION OF OPERATION
WARNING!
The ASI System does not automatically inhibit the sweeper from
backing up. The ASI System signals the operator when all the
sweeper systems are safe to back up. Backing the sweeper is still
in the control of the sweeper operator and care must be taken to
avoid accident or injury from backing sweeper.
Manual/Auto switch must be in Auto position for ASI to work. Upon placing the transmis
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sion gear selector in the reverse position, the blower will automatically be turned off and the se
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quence of the raising operations will begin. Also, to notify the operator that the sequence of
operations is in progress, a red warning light located on the console will start flashing. As soon
as the pick-up head is fully raised, the green light will turn on to notify the operator that the
sweeper is ready to back up. To resume sweeping, the transmission must be taken out of re
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verse (turning the red light off) and the INTERRUPT/RESET switch can then be pressed (turn
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ing the green light off) which will automatically lower the gutter broom(s), if previously ON, and
lower the pick-up head. Operator must manually increase the blower RPM!
FUNCTION
The pick-up head is designed to operate (or be pulled) in only the forward sweeping direction.
Therefore, to prevent damage to the pick-up head assembly, the sweeper should never be
“backed-up” with the pick-up head in the DOWN position. Before backing the sweeper, the op-
erator should ALWAYS turn the blower off, and raise the pick-up head and gutter brooms. The
Auto Sweep Interrupt (ASI) circuit was designed to automatically accomplish this sequence of
operations in an elapsed time of approximately 9.5 seconds.
When the ASI System is enabled, to interrupt sweeping for backing, the auto-sequence of op-
erations begins immediately when the sweeper chassis is shifted into reverse or by pressing a
INTERRUPT/RESET switch mounted at the sweeper control console. The auto-sequence of
operations is in the following order:
1. The blower is turned off and the gutter broom(s) and the BAH (Broom Assist
Head) broom, if equipped, are stopped.
2. The water system is turned OFF.
3. The left gutter broom is raised.
4. The right gutter broom is raised.
5. The pick-up head is raised (Including the BAH broom.)
To reset the sweeper in order to resume sweeping, the transmission must be taken out of re
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verse and the INTERRUPT/RESET switch pressed. All systems, except the throttle, will return
to their previous mode. The gutter broom(s) will automatically lower, the water system will re
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sume, the pick-up head will lower and the BAH broom will rotate if each were previously ON.
After an approximate 4 second time delay to insure that the pick-up head is on the sweeping
surface, the operator may pull forward and manually raise the auxiliary engine speed and re
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sume sweeping.
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