Changing The Oil - Pentair Jung Pumpen Compli 300 Série Instructions De Service

ENGLISH

Changing the oil

(Only applies for units 08/2, 20/2, 25/2 and 35/2). To ensure
operational liability, the first oil change should be carried out
after 300 operating hours, with further oil changes carried out
after every 1000 operating hours.
If the number of operating hours is very low, an oil change
should still be carried out at least once a year.
If wastewater with strongly abrasive constituents is being
pumped, the oil changes should be carried out at correspond-
ingly shorter intervals.
Use HLP hydraulic mineral oil, viscosity class 22 to 46, e.g. Mo-
bil DTE 22, DTE 24, DTE 25, to replace the oil in the oil reservoir.
The quantity of oil required is 380 cm³ for the MultiCut pumps
UC 08/2 M and UC 20/2 M, and 1000 ml for the MultiFree pumps
UC 25/2 BW and 35/2 BW.
NOTICE! The oil reservoir may only be filled with the specified
quantity of oil. Overfilling will result in the pump being rendered
inoperable.
Checking the cutting clearance
Only for pumps with cutting system. The housing screws for
the pump, and the connecting and fixing screws of the instal-
lation must be checked to ensure they are fixed securely. They
should be tightened if necessary.
If the pump performance decreases, or if increasingly loud
noises can be heard during operation, or if the cutting perfor-
mance decreases (the pump tends to become blocked), the
impeller and cutting system must be checked for wear by an
expert and replaced if necessary.
Using a suitable tool, e.g. feeler gauge, the cutting clearance
between the cutting rotor and the cutting plate can be meas-
ured. A cutting clearance of over 0.2 mm must be reduced.
Adjustment of the cutting clearance
1. Block the cutting rotor with a piece of wood and unscrew the
central hexagon socket screw.
2. Take off the compression piece, the cutting rotor and an ad-
justing washer and then attach the compression piece and the
cutting rotor again.
3. Block the cutting rotor and tighten again with the hexagon
socket screw (tightening torque 8 Nm).
4. Check the freedom of movement of the cutting rotor and the
cutting clearance again (max. 0.2 mm).
If the cutting clearance is still too big, a further adjusting
washer must be removed. Steps 1-4 must be repeated.
QUICK TIPS FOR REMEDYING
FAULTS
The unit isn't working
• Check the mains voltage, the fuse and the ground fault cir-
14
cuit interrupter. Replace defective fuses only with fuses
with the same nominal value! If the fuse triggers again, call a
qualified electrician or our customer support service.
• The internal 2 A glass tube fuse (delay) for the 230/12V con-
trol transformer, the motor contactor and the 230V AC pow-
er supply are faulty. Replace defective fuses only with fuses
with the same nominal value!
• If the mains cable is damaged, it may only be replaced by the
manufacturer.
• If the float switch is obstructed, close the inlet shut-off
valve, open the maintenance cover and clear the blockage.
If the alarm is triggered and the unit does not work:
• The thermostat in the motor windings may have switched
off the system because the pump is obstructed. In this case,
close the shut-off valve at the inlet, drain the tank, pull out
the mains plug, remove the pump module, and clear the
blockage.
Decreased pumping performance
• Check that the shut-off valve in the pressure pipe is fully
open.
• If the pressure pipe is blocked, flush water through the pres-
sure pipe to clear it.
• If the non-return valve is blocked, empty the pressure pipe
and clean the non-return valve.
• If the ventilation system is blocked, clean the ventilation
hose that leads from the pump tank and check the drilled
holes.
• If the unit works normally when it starts pumping, but be-
comes very loud towards the end, then a qualified electrician
must redefine the switch-off point in the control unit.
Indicator "Drehfeld falsch" (Wrong rotating field) lights up
• Mains phase sequence is wrong or phase is absent - thus
lower or absent pump delivery. The mains connection must
be corrected by a qualified electrician only.
Indicator "Störung Pumpe" (Pump failure) lights up (not
compli 300)
• The pump is protected by an integrated circuit breaker which
switches off the pump if it overloads or if there is an electric
motor fault. After this has been triggered, the control unit
has to be opened by a qualified electrician in order to press
the reset button.
Indicator "Hochwasser" (High water) lights up (not compli
300)
• Water level in the tank too high because of low pump flow
rate or excessive inflow. Remove any obstructions in the
pump or pressure pipe and/or eliminate the excessive inflow.