Parker PDRD125 Manual De Uso página 5

6 Maintenance
a) The machine is designed and built to guarantee continuous
operation; however, the life of its components depends on the
maintenance performed;
b) when requesting assistance or spare parts, identify the ma-
chine (model and serial number) by reading the dataplate lo-
cated on the unit.
6.1 General instructions
!
Before any maintenance, make sure:
S the pneumatic circuit is no longer pressurized;
S the dryer is disconnected from the main power supply.
Y
Always use the Manufacturer's original spare parts: other-
wise the Manufacturer is relieved of all liability regarding ma-
chine malfunctioning.
Y
In case of refrigerant leakage, contact qualified and author-
ized personnel.
Y
The Schrader valve must only be used in case of machine
malfunction: otherwise any damage caused by incorrect refriger-
ant charging will not be covered by the warranty.
Z
6.2 Refrigerant
Charging: any damage caused by incorrect refrigerant replace-
ment carried out by unauthorized personnel will not be covered
by the warranty.
Y
At normal temperature and pressure, the R134a refrigerant
is a colourless gas classified in SAFETY GROUP A1 --- EN378
(group 2 fluid according to Directive PED 97/23/EC).
!
In case of refrigerant leakage, ventilate the room.
English
6.3 Preventive Maintenance Programme
To guarantee lasting maximum dryer efficiency and reliability:
Maintenance Maintenance Interval
Activity Description
(standard operating conditions)
Activity
Check POWER ON indicator is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser fins.
Check electrical absorption.
Depressurize the dryer.
Complete drain maintenance.
Depressurize the dryer.
Repalce pre--- and post---filter ele-
ments.
check
The following are available (see par. 8.4):
a) service kits
1. compressor kits;
2. fan kits;
3. automatic expansion valve kits;
4. hot gas valve kits;
b) individual spare parts.
Z
6.4 Dismantling
The refrigerant and the lubricating oil contained in the circuit
must be recovered in conformity with current local environmen-
tal regulations.
structural work
exchanger
pipes
drain
exchanger insulation
pipe insulation
compressor
condenser
refrigerant
service
valves
electrical cables
Recycling
Disposal
steel/epoxy---polyester resins
aluminium
aluminium/copper
polyamide
EPS (sintered polystyrene)
synthetic rubber
steel/copper/aluminium/oil
steel/copper/aluminium
R134a
brass
copper/PVC
3
PDRD125 ---PDRD175