Regular Care; Pump Storage; Troubleshooting Guide - Metabo DP 18-5 SA Manual Original

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6.1

Regular care

Regular care is required for the pump to func-
tion perfectly at all times. This also applies if
the pump is not switched on for extended pe-
riods of time (e.g. during operation in soaka-
ways).
Cleaning the pump
1. Rinse pump with clean water. Remove
persistent marks, e.g. algae deposits, with
brush and dishwashing liquid.
2. To rinse the inside of the pump:
dip pump into a container of clean water
and switch on briefly.
6.2

Pump storage

Caution!
Frost damages the pump and ac-
cessories as both always contain
water!
If there is a danger of frost, disassemble

pump and accessories and store in frost-
free conditions.
6.3 Device maintenance (only for
SP 28-50 S Inox, DP 28-10 S
Inox)
Caution!
Lubricant may leak from the pump if
the seals are defective, causing con-
tamination of the liquid being pumped.
Although the lubricant contained in the sub-
mersible pump for dirty water is non-toxic, it
can alter the water properties.
Danger!
Maintenance work must only ever
be carried out by qualified, special-
ly trained staff. After 4,000 to max. 8,000
hours of operation, and in any case at least
once a year, the quantity and quality of the oil
in the oil reservoir must be checked.
7. Troubleshooting
Danger!
Prior to all servicing:
Unplug.
7.1

Troubleshooting guide

Pump does not run:
No mains voltage.

– Check cables, plug, outlet and mains
fuse.
Mains voltage too low.

14
– Use an extension cable with sufficient
conductor diameter.
Motor overheated; motor protection relay

tripped.
– Eliminate the cause of overheating
(pump blocked by foreign objects?).
Float switch does not switch pump ON

when water level rises.
– Make sure the float switch can move
unrestrictedly. If, despite sufficient mo-
bility of the float switch, the pump does
not switch ON: send the pump to the
service centre in your country.
Motor hums, but does not start:
Pump blocked by foreign objects.

– Clean impeller.
Pump runs, but does not pump properly:
Delivery head too high.

– Observe max delivery head (see 'Tech-
nical Specifications').
Discharge hose kinked.

– Straighten discharge hose.
Discharge hose leaky.

– Seal discharge hose; tighten screw fit-
tings.
Pump runs very noisily:
Pump is sucking air.

– Ensure there is a sufficient water sup-
ply.
– Foreign objects are present (clean
pump).
– Manual mode has been set (shallow
water suctioning).
– Hold pump at an angle when submerg-
ing.
Pump runs continuously:
Float switch does not reach cut-out posi-

tion.
– Make sure the float switch can move
freely.
8. Repairs
Danger!
To avoid risks, only have repairs car-
ried out by qualified electricians using
original Metabo spare parts.
If you have Metabo electrical tools that re-
quire repairs, please contact your Metabo
service centre. For addresses see www.me-
tabo.com.