wtw 115 VAC, Operating Manual

Page: 19 / 32

Cleaning Air Box Maintenance and cleaning
ba75731e04 12/2013
5 - 1
5 Maintenance and cleaning
5.1 Maintenance
5.1.1 General maintenance instructions
WARNING
While the Cleaning Air Box is operating, there are the following dangers
inside it:
 Danger to life due to voltage-carrying electrical lines.
 Risk of injury for the fingers and risk of hair and loose clothing being
drawn in at the blower wheel of the pump.
Before opening the enclosure, disconnect the Cleaning Air Box from the
power supply and secure it against being switched on inadvertently.
Maintenance
plan
5.1.2 Exchange of the pump membrane and valve plates
Dismantling the
mounting plate
with pump
Maintenance activity Recommended interval
Visual check of all hoses and hose
connections monthly
Exchange of the intake air filter yearly
Exchange of the pump membrane
and valve plates
(see section
5.1.2
)
every 5000 operating hours or every 5
years
Depending on environmental conditions (e.g. dust in the air, high
temperatures), the maintenance intervals can vary.
This exchange can be carried out without problems by technically
versed laypersons. If you wish service personnel to carry out the
exchange, please contact WTW.
Ordering information on pump spare parts is given in
chapter 6 R
EPLACEMENT PARTS AND ACCESSORIES
.
1 Open the enclosure of the Cleaning Air Box.
2 Disconnect all wires of the power cable and control line from the termi-
nal strip.
3 Remove the two blue hoses from the pump head. To do so, loosen the
blue coupling rings and pull off the hoses.