Service And Repairs; Cleaning And Servicing; Disassembly, Exchange; Replacing The Sensor For Electrical Level Detection - Emerson AVENTICS NL1 Notice D'instruction

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 maintenance equipment.

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 you assemble the product or replace parts.
2. Protect the system against being restarted.

7.1 Replacing the sensor for electrical level detection

g Fig. 7
The sensor for electrical level detection cannot be exchanged separately and
must be exchanged along with the reservoir. Proceed as follows:
Table 1: Exchange the reservoir with sensor:
with polycarbonate reservoir
u Make sure the relevant system part is without pressure.
u Exhaust the system.
u Release the protective guard (g Fig. 6 I a,
b), if present, and pull it off downwards
(g Fig. 6 I c).
u Release the sensor's M12 plug from the connection socket on the bottom of the oil
reservoir (g Fig. 7 I).
u Unscrew the reservoir (g Fig. 6 I d) from
the housing.
u Exchange the old reservoir for a new one (g Fig. 7 II b, c).
u Mount the new reservoir with sensor and,
if present, the protective guard in reverse
order as shown in Fig. g Fig. 6 I (see also
Fig. g Fig. 2 I).
u Connect the sensor to the connection socket on the bottom of the oil reservoir with an
M12 plug (g Fig. 7 III).

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 you assemble the product or replace parts.
2. Protect the system against being restarted.
AVENTICS™ NL1 | NL2 | NL4 | NL6 | R412015555-BAL-001-AE | English
CAUTION
with metal reservoir
–
Pull down the unlocking device (g Fig. 6 II
a), turn the reservoir (g Fig. 6 II b) in an
anti-clockwise direction, and then pull it
down and remove (g Fig. 6 II c).
Mount the new reservoir with sensor in re-
verse order as shown in Fig. g Fig. 6 II (see
also Fig. g Fig. 2).
CAUTION

9.1 Changing the flow direction (NL1, NL2, NL4, NL6)

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:

9.1.1 Lubricator conversion

g Fig. 9
On all components, the flow direction change is performed by rotating an instal-
lation by 180° around the vertical axis. The housing covers need to be changed
for the purpose.
9.1.2 Changing the housing cover (NL2, NL4, NL6)
g Fig. 8
Changing the housing cover is not possible on the NL1.
1. Remove the side cover caps on the compressed air connections by sliding a
suitable tool under the cover cap vanes, carefully lifting them up, and taking
them off.
2. Lift the front a rear cover cap by pushing the lock-in bolts (2 on each side) up
on the latches.
Remove the cover caps carefully and evenly so that the 4 lock-in bolts
do not break off.
3. Now lift the front and rear cap evenly by carefully levering them open with a
suitable tool and taking them off.
4. Mount the cover caps on the opposite sides in the reverse order. The cover
cap with the AVENTICS logo should be facing to the front.

9.1.3 Turning the reservoir with bayonet catch

1. Release reservoir.
2. Rotate reservoir 180° and click it back into place.
The release is now pointing to the front.

10 Troubleshooting

Malfunction Possible cause
Oil content of compressed air Oil has fallen below minimum
too low filling level in the reservoir
Dosage is too low
Ambient temperature is
lower than at time of adjust-
ment
Oil content of compressed air Oil has been filled to over the
too high max. filling level in the reser-
voir
Dosage is too high
Ambient temperature is
higher than at time of adjust-
ment

11 Technical data

Maximum permissible pressure, temperature range, and thread connection are
indicated on the products.
General data
Mounting position
Medium/ambient temperature min./max.
Further technical data can be found in our online catalog.
Remedy
Top up oil in the reservoir
Increase no. of drops
Please use oil with a lower vis-
cosity level
Empty oil to the max. filling
level in the reservoir
Reduce no. of drops
Please use oil with a higher
viscosity level
Vertical
-10 °C /+60 °C
11