Tennant 7100, Service Manual

Page: 258 / 305

ELECTRICAL
4-90
7100 330695 (8 − 11)
Operating Mode Entry Sequence
(how to activate)
Normal Mode ; Normal operation. Default (when key is turned on)
NORMAL MODE
The purpose of the normal mode is for the general
operation of the machine. The machine will
normally start in this mode. What follows is a brief
description of each of the operations in the normal
mode.
SCRUB BUTTON
The purpose of the scrub button is to turn the
scrubbing operations on and off and adjust the
scrubbing down pressure. Pressing the scrub
button while the scrubbing operation is currently
inactive will initiate the following actions:
1. Illuminate the LED’s that indicate the default
down pressure.
2. If the machine is not in reverse, the vacuum
fan will turn on, the squeegee will drop, and
the brushes will drop. Putting the machine
into reverse will raise the squeegee and,
after a slight delay, turn off the vacuum fan.
3. If the machine is in forward, the brush head
will drop, water valve will turn on, and the
brushes will start turning. Putting the
machine into neutral while scrubbing will turn
off the brushes, turn off water, and, after a
short delay, slightly raise the scrub head.
4. If the operator holds the scrub button after the
LED’s become illuminated, the machine will
begin to scroll through the different scrub
down pressures. The controller stores the
pressure displayed as the new default after
the user releases the scrub button.
Pressing and releasing the scrub button while the
machine is currently in the scrub mode will initiate
the following actions.
1. The scrub motors will turn off , the water valve
will close, and the scrub head will start to
raise.
2. The machine will delay a few seconds and the
squeegee will start to raise.
3. The vacuum fan will turn off after a slight
delay.