2008 33 DSTOPTRS
PICK-UP HEAD
The pick-up head is the most important component of the TYMCO MODEL 600 REGENERA
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TIVE AIR SWEEPER. But, because the pick-up head must be dragged on the pavement, it can
be seriously damaged by careless operation. Even when the pick-up head is fully raised, it is
still close to the pavement and care must be taken not to damage it in transit.
DO NOT:
1. Back up with pick-up head lowered.
2. Raise pick-up head before lowering engine RPM.
3. Increase engine RPM above idle before lowering pick-up head.
4. Forget to raise pick-up head for transit.
5. Drive over speed bumps or divider turtles higher than two inches.
6. Cut corners while in transit.
To lift debris from the ground, a 14" diameter suction nozzle is located on the right side of the
pick-up head. The sweeper blower draws air from the hopper creating a vacuum. A flexible
tube is then used to connect the hopper vacuum to the pick-up head suction nozzle whereby
debris is lifted from the ground and deposited into the hopper. However, because the pick-up
head is 87 inches wide some means must be used to move debris across to the suction nozzle.
Just as debris is lifted into the hopper by the vacuum generated by the blower, the exhaust air
of the blower is used to blow debris over to the suction nozzle. This is done by forcing the
blower exhaust air through an elongated pressure nozzle. TYMCO calls this the Blast Orifice.
The blast orifice opening is 87 inches long with a ¼" to ¾" tapered opening. The blower exhaust
air is squeezed through this narrow opening which compresses the air into a powerful jet that is
then used to blast debris from the ground, forcing it over to the suction nozzle.
OPERATION
1. Before sweeping, the operator must check that the sweeper is properly prepared.
The operator should read the Model 600BAH Operator's Manual to become familiar
with all aspects of his duties regarding this sweeper. Read the manual first!!!
2. The auxiliary engine must be running in order to lower the pick-up head, but do not
increase the RPM above idle.
3. Hold the toggle switch in the down position until the pick-up head cylinders are fully
extended. (Rear motor will lug down slightly when cylinders bottom out.) When re-
leased, the toggle returns to the neutral position.
4. With the pick-up head fully lowered, pull the truck forward a few feet to fold the
pick-up head curtains under into the sweep position. Turn the gutter broom(s) on
and increase the auxiliary engine throttle to desired sweeping RPM.
5. The sweeper is now ready for normal operation. Keep the truck transmission shift le-
ver in first gear to keep transmission from cycling between first and second while
sweeping. Best sweeping speeds are from 3 to 5 miles per hour; however, curb con-
ditions and street congestion determine at what speed to sweep.
6. The design of the pick-up head allows it to handle most debris normally encountered
in the curb without special consideration; however, the operator must remember that
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