Service And Repairs; Cleaning And Servicing; Exchanging Filter Element (Filter Pressure Regulator (Fre)); Exchanging The Filter Element (Nl6) - Emerson AVENTICS NL1 Operating Instructions Manual

If the drain screw is screwed in all the way anti-clockwise, the auto-
matic drainage is blocked.

6 Service and repairs

6.1 Cleaning and servicing

• Close all openings with suitable safety devices so that no cleaning agent can
enter into the system.
• Never use solvents or aggressive detergents. Only clean the product using a
slightly damp cloth. Only use water and, if necessary, a mild detergent.
• Do not use high-pressure cleaners for cleaning.
• Do not use compressed air for cleaning (blowing off) the air preparation unit
or equipment.

6.2 Exchanging filter element (filter pressure regulator (FRE))

g Fig. 5
g Fig. 6
System is operating under pressure!
Opening the system while under pressure may damage the air preparation
unit/apparatus and cause serious injury.
Please ensure that the system is not under pressure before you open the
u
reservoir.
The filters clog up over time and need to be exchanged regularly, at the latest af-
ter a year. However, this is only approximate, because intervals depend on the
quality of compressed air and flow rate.
Please use the material numbers listed below to order. The addresses of the inter-
national agencies are available at www.emerson.com/contactus.
Wearing parts (c/b)
Series NL
Standard filter element, 5 µm,
Material: polyethylene
NL1/NL2
NL4
Standard filter element, 8 µm,
Material: polyethylene
NL6
Standard filter element, 5 µm,
Material: sintered bronze
NL4
Standard filter element, 25 µm,
Material: polyethylene
NL1/NL2
Standard filter element, 40 µm,
Material: polyethylene
NL1/NL2
NL6
Standard filter element, 40 µm,
Material: sintered bronze
NL1
NL4
Exchanging the filter element (NL1, NL2, NL4):
with polycarbonate reservoir
Release the protective guard (g Fig. 5 a, b), if
present, and pull it off downwards (g Fig. 5 c).
Unscrew the reservoir (g Fig. 5 d) from the
housing.
Remove the filter seat (g Fig. 6 a).
Exchange the filter piece (g Fig. 6 b, c).
Slide the filter unit (filter seat and filter piece) back together (g Fig. 6 b, c).
Connect the filter unit to the filter and tighten it slightly by hand (g Fig. 6 d, c).
AVENTICS™ NL1 | NL2 | NL4 | NL6 | R412015552-BAL-001-AE | English
CAUTION
Material no.
1829207061
1829207070
1829207045
R961400010
R961400004
R961403385
1829207040
R961400009
R961400012
With metal reservoir
–
Pull down the unlocking device (g Fig. 5
a), turn the reservoir (g Fig. 5 b) in an anti-
clockwise direction, and then pull it down
and remove (g Fig. 5 c).
with polycarbonate reservoir
Remount the reservoir and, if present, the pro-
tective guard in reverse order as shown in Fig-
ure g Fig. 5.

6.2.1 Exchanging the filter element (NL6):

g Fig. 7
1. Make sure the relevant system part is without pressure.
2. Exhaust the system.
3. Release the 4 screws on the underside of the housing.
4. Pull the bottom part of the housing, the taper including condensate reservoir,
carefully down and off (a).
5. Remove the filter seat.
6. Exchange the filter seat (b, c).
7. Slide the filter unit (filter seat and filter piece) back together (b, c).
8. Connect the filter unit to the filter and tighten it slightly by hand (d).
9. Reinstall the bottom part of the housing, the taper including condensate
reservoir, in the reverse order.

7 Disassembly, exchange

Danger of injury in case of disassembly or replacement under pressure or
voltage!
Disassembling or replacement when under pressure or electrical voltage may
lead to injuries and damage to the product or system components.
1. Make sure that the relevant system part is without pressure or voltage be-
fore disassembling the product or exchanging parts.
2. Protect the system against being restarted.

8 Disposal

Dispose of the product and condensate in accordance with the national regula-
tions in your country.

9 Conversion and extension

Danger of injury in case of disassembly or replacement under pressure or
voltage!
Disassembling or replacement when under pressure or electrical voltage may
lead to injuries and damage to the product or system components.
1. Make sure that the relevant system part is without pressure or voltage be-
fore disassembling the product or exchanging parts.
2. Protect the system against being restarted.

9.1 Exchanging the pressure gauge

g Fig. 1-II
1. Unscrew the old pressure gauge from the pressure gauge thread.
2. Mount the new pressure gauge as described in the "g 5.2. Mounting the pres-
sure gauge" section.

9.2 Change flow direction

On delivery the flow direction is from left (1, IN) to right (2, OUT). The following
conversion on the product is necessary if the flow direction is to be changed:
9.2.1 Filter pressure regulator (FRE) conversion and pressure regula-
tor (RGS and RGP)
g Fig. 8
With metal reservoir
Remount the reservoir in the reverse order
shown in Figure g Fig. 5. Insert reservoir at
a 45° offset and turn it to the right until the
release audibly latches.
CAUTION
CAUTION
13