Tennant 255 Series II, Operator'S Manual, Page: 37 / 128

OPERATION
2-15
255 SERIES II MM189 (12---89)
TO SWEEP
Plan the sweeping in advance. Try to arrange long
runs with minimum stopping and starting. Sweep
debris from very narrow aisles into main aisles ahead
of time. Do an entire floor or section at one time.
Pick up oversize debris before sweeping. Flatten or
remove bulky cartons from aisles before sweeping.
Pick up pieces of wire, twine, string, etc., which
could become entangled in brush or brush plugs.
Overlap brush paths.
04622
OVERLAPPING PATHS
Avoid turning the steering wheel too sharply when
the machine is in motion. The machine is very
responsive to the movement of the steering wheel.
Avoid sudden turns, except in emergencies.
Sweep as straight a path as possible. Avoid
bumping into posts or scraping the sides of the
sweeper.
Speed up the engine from (Fast 1) to (Fast 2) when
light litter is to be picked up. This will improve both
litter pickup and hopper loading. Do not overuse the
(Fast 2) speed as the machine may dust and clog
the hopper filters in dusty environments. Normal
debris is best picked up with the engine operating in
the (Fast 1) position.
1. Push the hopper lift and side brush lever into
the (Side Brush On) position, and place the
main brush, vacuum fan and filter shaker
switch in the (Main Brush On) position.
2. Move the main bush position lever into the
(Main Brush Down) position and the side brush
position lever into the (Side Brush Down)
position.
3. Sweep as required.
TO DUMP HOPPER
1. Pull the main brush position lever back into the
(Main Brush Up) position.
2. Pull the side brush position lever back into the
(Side Brush Up) position.
3. Press and hold the main brush, vacuum fan,
and filter shaker switch in the (Filter Shaker)
position from 10 to 15 seconds.
4. Slowly drive the machine up to the dump site or
dumpster.
5. Low dump model machines: Pull the hopper lift
and side brush lever back into the (Hopper Up)
position to dump the hopper. Pull the lever into
the (Hopper Hold) position to keep the hopper
in the dumped position.
Multi-level dump model machines: Pull the
hopper lift and side brush lever back into the
(Hopper Up) position to lift the hopper to the
desired height. Be aware, the minimum vertical
clearance needed to high dump the hopper
108 in (2745 mm).
WARNING: Machine hopper lifts to 108 in
(2745 mm) when high dumping. Hopper can
hit overhead wires or object. Electrical shock or
falling debris can result. Be sure adequate
clearance is available before raising hopper.
Multi-level dump model machines: Pull the
hopper lift and side brush lever back into the
(Hopper Hold) position to keep the hopper at
the desired height; then push the hopper dump
lever into the (Hopper Roll Out) position to
dump the hopper.
NOTE: Lowering the hopper into the dumpster may
help to control flying dust.
Multi-level dump model machines: Pull the
hopper dump lever into the (Hopper Roll In)
position to return the hopper to its normal
angle, then release the lever.