Nilfisk SH AUTO 5M [23/33] Auto booster

AUTO BOOSTER

Original Instructions

4.2.4 Foam brush, mounting

& dismounting

A soft foam brush is available for the AUTO BOOSTER to be used

during program step 2.

On the left-hand side of the AUTO BOOSTER is placed a holder for

storing the soft foam brush when not in use.

The soft foam brush is equipped with a female bayonet coup ling

that will accept the male bayonet coupling on the end of the spray

lance.

Attach the brush to the lance by pushing the brush fully onto the

lance (spring-loaded) and twist, until the bayonet couplings engage.

Remove the brush from the lance by reversing the above process.

4.2.5 Circulation frost

protection

As standard the AUTO BOOSTER is equipped with a circulation

device to protect the hose, the spray handle and the lance from fre-

ezing during periods with frost. Also, an internal, electrical heating

element will prevent the machine itself from freezing. In order for

the system to operate, the AUTO BOOSTER must not be discon-

nected from main electric supply (see note in sec. 4.2.1)

A thermostat switch mounted on the outside of the chassis of the

AUTO BOOSTER switches ON the circulation frost protection sy-

stem when the temperature is below the pre-set temperature.

Thus the pump starts circulating preheated water through the hose,

spray handle and lance.

The lance must be placed in the holder at the left side of the AUTO

BOOSTER in order to re-circulate the water (see note in sec.

4.2.3). If the lance is placed outside the holder, the water will spill

on the ground at a rate of approximately 1 l/min.

An extra thermostat is located inside the cabinet of the AUTO

BOOSTER to switch ON the electrical heating element in the cabi-

net, if the inside temperature drops below the pre-set temperature.