Viper AS4335C Instruction Manual

Install the brush or pad holder onto the drive plate
and give a slight clockwise turn. Lower the brush
deck by pressing the pedal down and to the right.
Lift the deck and squeegee by pressing the pedal
down and to the left.
Use and maintenance
Operating guidelines AS4335C
When scrubbing is complete, turn off the machine
to perform the following maintenance.
Either of the red safety switches can be used
to operate the machine. The handle height can
be raised and lowered using the black lever on
the handle.
Lift the squeegee up by hand until it locks in the
UP position, and turn off the vacuum, to perform
double scrubbing.
To return to normal working mode, use the red
lever to release the squeegee, and turn the vacuum
back on.
Solution flow can be adjusted to the scrubbing
need by adjusting the manual valve located near
the solution filter.
Remove the red cover, fill the tank 1/2 full, then
add an appropriate amount of low foaming
detergent. Complete the filling of the tank,
and replace the red cover.
You can check the level of the solution anytime
using the red ball on the left side of the machine.
July 2020
Connect the power cord to a 3-prong grounded
electrical outlet. Press the machine ON button.
Press the solution and vacuum ON and start
cleaning by placing your hands on either of
the safety switches.

Maintenance
Operating guidelines AS4335C
When scrubbing is complete, turn off the on/off
button to perform the following maintenance.
Daily: Empty the clean water tank using the
solution tank drain knob under the machine.
Daily: Empty the recovery tank using the recovery
empty hose. Bend the soft part before removing the
cap to control the flow.
Daily: Leave the recovery tank lid open after it’s
been cleaned to avoid bad odor.
Daily: Inspect and rinse the float ball cage and
inspect and clean the lid gasket if required.
Daily: Remove the squeegee, and clean.
Inspect the blades and flip them or replace them
if required.
To remove the brush/padholder lift the deck
by pressing the pedal and manually release the
brush/pad.
Weekly: Inspect the solution filter and clean
if required.
Local Viper dealer:
Phone number:
SN:
July 2020
183 7/2020
© 2020 Nilfisk, Inc.