NaceCare Solutions AV4X - Manual (Page 2)

2
MACHINE COMPONENTS
Vacuum Dome
The vacuum dome is located on top of the recovery tank. It is held in place by 2 moulded clips under the
rim. On the left side (from behind the machine) there is a debris screen to prevent debris from entering
the vacuum hose leading to the vacuum motor. The ports which accept the hose cuffs from the vacuum
shoe and the vacuum motor are different sizes so they cannot be attached incorrectly.
Handle
The handle of the machine is adjustable to suit different operators. To increase or decrease the handle
height, loosen the knurled knob at the rear of the handle and slide up or down as required. Re-tighten the
knob when the desired height is reached. The hand grip rotates in a counterclockwise direction. This
action depresses a microswitch that starts the solution pump (when the solution switch is in the lower “I”
position). Solution stops flowing when the grip is released or when it is rotated in a clockwise direction.
Recovery Tank
The recovery tank is located on the top of the machine. It is attached to the solution tank (lower) by two
latches. It is easy to remove the recovery tank from the solution tank for emptying and clean-out.
Solution Tank
The solution tank is the lower unit. It can be filled with water via the rear fill hole that is covered with a
round black cap using a clean bucket or with a hose direct from the faucet. The cap has a retaining strap
so that it does not become misplaced. Inside the solution tank, the water pick-up hose has with an inlet
filter and weight. The weight must be at the inlet filter end of the hose to keep it submerged.
At the rear of the machine beneath the handle is a panel that encloses the pump. Exiting from this panel
is a quick coupler. For normal use, the short water hose running underneath the machine should be
connected to the quick coupler.
If accessory cleaning attachments are used, disconnect the solution line at the rear of the machine and
replace it with the accessory solution hose.
The rear panel also incorporated the electrical switches. On the right side is the vacuum switch. On the
left is the 3 position pump switch. In the middle position, the pump is off. In the lower position the pump
will only activate when the hand grip on the handle is twisted. In the upper position, the pump operates
continuously. Use this position when using accessory cleaning attachments.
NOTE: Never fill the unit using a dirty bucket. This may cause damage to the pump system.
Vacuum Shoe
The vacuum shoe is fitted with a hard floor wet pick-up squeegee. When using the machine on hard
surfaces rotate the black lever on the front of the squeegee assembly counterclokwise to lower it. When
using the mahcine on carpeted surfaces rotate the lever fully clockwise.
Fitted at the back of the vacuum shoe is a black spraybar with a twist-off spray tip. If the spray pattern
becomes erratic or there is poor water flow to the floor, remove and clean the spray tip.