Evac 6540372 Manual

EVAC reserves the right to make alterations to this specication without prior notice.
© Copyright Evac Oy. All rights reserved.
OPERATION & MAINTENANCE
Date: 06 Feb 2018 Doc. 000635-4
1
6540372 PUMP SE 044A 3 X 220V 50 HZ 6540381 PUMP SE 044A 3 X 690V 60 HZ
6540369 PUMP SE 044A 3 X 380-420V 50 HZ 6540371 PUMP SE 044A 3 X 230V 60 HZ
6541600 PUMP SE 044A 3 X 690V 50 HZ 6540370 PUMP SE 044A 3 X 460V 60 HZ
mechanical seal.
2. Start-up procedure
Clean the holding tank and pipework from any foreign objects. Fill the holding tank to the lling level before
starting the pump. Follow the operation of the pump and check that it starts and stops as per in electric
drawings.
3. Operation
During regular inspections check:
• that there are not alarms on
• that the pump does not make an unusual noise when running
• that the “running hours” meters of alternately running pumps show roughly the same reading
4. Maintenance
Evac SE 044A pump is specially designed to run together with Evac -ejector in heavy duty sewage conditions
with minimal maintenance. The pump is equipped with Vortex impeller with no clearance adjustment, high
quality mechanical seal and electric motor bearings for long life operation.
Once a year
Start pump manually and check that:
• there are not leakages
• pump is running smoothly
• the ejector generates vacuum normally
• alarms, valves etc. operate normally
At 10 000 running hours (or every ve years)
Dismantle the pump and:
• clean pump housing
• change mechanical seal (5451310)
• change O-ring (5451330)
• change electric motor bearings
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
1. Installation
Install the pump to the base and ensure that no load is transferred
to the pump from the pipework. Use suitable spacers between the
pump and the base when necessary. Follow the instructions of the
manufacturer of motor and make sure that cooling air is provided
for the motor.
Adjust pipework on the suction and pressure side so that the anges
t easily together. Make sure that xing of bolts will not cause any
load to the pump body. Connect the cable to the control panel as
shown in the electrical diagram. Check direction of rotation to be
clockwice by shortly starting the pump.
! NOTE: Do not run the pump dry for more than just a few seconds, because longer dry running will damage the

EVAC reserves the right to make alterations to this specication without prior notice.
© Copyright Evac Oy. All rights reserved.
OPERATION & MAINTENANCE
Date: 06 Feb 2018 Doc. 000635-4
2
6540372 PUMP SE 044A 3 X 220V 50 HZ 6540381 PUMP SE 044A 3 X 690V 60 HZ
6540369 PUMP SE 044A 3 X 380-420V 50 HZ 6540371 PUMP SE 044A 3 X 230V 60 HZ
6541600 PUMP SE 044A 3 X 690V 50 HZ 6540370 PUMP SE 044A 3 X 460V 60 HZ
5. Change of mechanical seal
5.1 Removal of impeller
Unscrew an impeller locking screw. Removal of impeller from the shaft can be done e.g. by using a puller. To
prevent causing damage to the thread on the shaft, the thread should be protected. Place the claws of the puller as
close to the impeller boss as possible. Do not crank the impeller unequally, as this can cause damage to shaft and
seal.
! NOTE: The impeller locking screw must be changed to new one every time when unscrewed.
5.2 Removal of seal
Loosen the screw on the retaining ring. There is a hole in the rear wall through which removal can be done. Pull
retaining ring, seal spring and rotating seal ring away. Be especially careful when dismantling the seal ring.
5.3 Dismantling the rear wall and stationary seal ring
Undo the four M12 x 30 hex bolts on the motor ange. Pull the rear wall away from the steering of the motor
ange. Be careful not to damage the stationary seal ring when removing the rear wall. Remove the stationary seal
• ASSEMBLY TOOL
• PUR 035
• (Colour RED)
ASSEMBLY TOOL
PUR 012
ring if it is damaged or worn. Removal of stationary ring can be
done by pressing it slightly from the motor side of the rear wall.
Replace the whole seal, if it is damaged or worn.
5.4 Assembly of stationary seal ring
Clean carefully the place of the stationary seal ring in the rear
wall. Lubricate the 0-ring with oil. Do not use vaseline.
Observe cleanliness in all assemblies. The assembly of the
stationary seal ring must be carried out with most care to avoid
damaging of the seal.
Assemble the rear wall on the motor where the pump shaft is
installed. Fasten the four M12 x 30 hex bolts of the motor and
rear wall.
Place the stationary seal ring so that the groove of the seal
ring is in line with the projecting of the rear wall. Carefully
press the seal into place by using the special assembly tool
PUR 012. Avoid unecessary force.
5.5 Assembly of rotating seal ring
Lubricate the 0-ring and the sealing surfaces with oil. Cover the
key way of the pump shaft with adhesive tape to avoid damage
to the 0-ring. Press the rotating seal ring together with the
retaining ring and the spring onto the shaft by using the special
assembly tool PUR 035 (Colour RED). Be sure that the end of
the spring will go into the groove in the retaining ring. Tighten
the socket head screw in the retaining ring carefully. Remove
the adhesive tape from the key way.
! NOTE: Use the new assembly tool PUR 035 colour RED.

EVAC reserves the right to make alterations to this specication without prior notice.
© Copyright Evac Oy. All rights reserved.
OPERATION & MAINTENANCE
Date: 06 Feb 2018 Doc. 000635-4
3
6540372 PUMP SE 044A 3 X 220V 50 HZ 6540381 PUMP SE 044A 3 X 690V 60 HZ
6540369 PUMP SE 044A 3 X 380-420V 50 HZ 6540371 PUMP SE 044A 3 X 230V 60 HZ
6541600 PUMP SE 044A 3 X 690V 50 HZ 6540370 PUMP SE 044A 3 X 460V 60 HZ
1) Lubricate the O-ring and the sealing surfaces with
oil.
2) Cover the key way of the pump shaft with adhesive
tape to avoid damage to the O-ring.
3) Push the rotating seal ring together with spring and
retaining ring onto the shaft by using a suitable sleeve
having inner diameter lightly bigger than 25 mm.
5.6 Assembly of rotating seal ring without assembly tool PUR 035
Assembly of rotating seal ring without a special tool is not recommended. However, if it must be done it must
be ensured that spring compression is correct.

EVAC reserves the right to make alterations to this specication without prior notice.
© Copyright Evac Oy. All rights reserved.
OPERATION & MAINTENANCE
Date: 06 Feb 2018 Doc. 000635-4
4
6540372 PUMP SE 044A 3 X 220V 50 HZ 6540381 PUMP SE 044A 3 X 690V 60 HZ
6540369 PUMP SE 044A 3 X 380-420V 50 HZ 6540371 PUMP SE 044A 3 X 230V 60 HZ
6541600 PUMP SE 044A 3 X 690V 50 HZ 6540370 PUMP SE 044A 3 X 460V 60 HZ
4) Be sure that the end of the spring will go into the
groove in the retaining ring.
5) Compression of the spring is correct when the
distance from surface of the retaining ring to the
surface of seal housing is 1.5 mm. (See picture.)
6) Tighten the socked head screw in the retaining ring
carefully. The correct tightening torque is 7 Nm.
7) Remove the adhesive tape from the key way.
5.7 Installation of the impeller
Install the shaft key and the impeller. Secure the impeller using the impeller locking screw (P/N 5451350). The
correct tightening torque is 40 Nm.
! NOTE: The impeller locking screw must be changed to new one every time when unscrewed.