Sulzer J 205, Workshop Manual

Page: 6 / 38

6
2 Electrical check
2.1 Pump start and cable check
c
DANGER! Always check that the pump
is disconnected from the electric
power supply before opening any part
of the pump.
□ Check if the pump starts by connecting it to the power
supply.
□
Check the direction of rotation, it should make a jerk
in the direction of the arrow on the pump (anti-clock-
wise). To change direction of rotation shift two phases.
(Figure 1)
□
Check the cable for damage and that there is no wa-
ter or corrosion in the connecting plug.
□
Test the insulation between cable end / plug and
earth. Note! DO NOT MEGGER 1000V PUMPS WITH
GROUND CHECK DIODE (GC) CONNECTED.
2.2 Dismantling cover
Unscrew the cap nuts/screws for the cover. Lift off
the cover and disconnect the power cables from the
contactor/terminal block. If the water has penetrated
through the cable gland, the cable seal should be re-
placed. Remove strain relief clamp prior to unscrewing
cable gland body. Pull out cable, cable seal and wash-
ers. (Figure 2-4)
Figure 1: Direction of rotation
Im
pe
lle
r ro
tation
Sta
rt r
ea
ct
io
n
Figure 2: Pump with contactor/terminal block/SoftDrive
(J 205)
Figure 3: Pump with contactor/terminal block (J 405)
Figure 4: Pump with terminal block (J 604)