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Operating instructions
Troubleshooting SC UNO 4M
Fault
Pressure
Air in suction hose
fl uctuations
Not enough water supply
Water filter is clogged up
High pressure nozzle blocked/worn
Suction height exceeded
Foam
Detergent used is non-foaming
sprayer not
Nozzle on suction hose is clogged up
producing
or filled with dried out soap
foam
Foam sponge in foam sprayer is
clogged up.
Detergent tank empty
Motor does
Electric cable broken
not start
or buzzes
Plug is not inserted in mains
when
Mains fuse has blown
switched on
Plug has a loose connection to cable Repair/reassemble plug on cable - skilled electrician
The pump is blocked or frozen
The thermal protector is activated
Maintenance plan
Weekly
Cleaning
A1.1
water fi lter
Checking oil
B1.4/E1.0
level/top up
Changing
pump oil
Special operating instructions
Self-suction
Parts needed for suction
1 x Hose Nozzle 20R 3/4"
1 x Hose 3/4"
1 x Hose Clamp 3/4"
1 x Suction Filter with foot-valve
8
Cause
Fill hose with water and connect again
Stop! until appropriate water mains or hose reflect
pump Qmax
Rinse the water filter
Clean the nozzle or replace it by a nozzle of the same
size
Stop! until max suction height is present as specified
Use only detergents with foaming agent.
Rinse detergent limiter / flush with tempered clean
water.
1. Rinse/soak foam sprayer in tempered water for 8
2. Or dismount front of foam sprayer, rinse the foam
Top up detergent tank
Contact professional electrician for replacement of
electric cable
Insert plug
Reset power mains
Stop! Unfreeze pump or contact dealer service de-
partment
Stop! Cool off machine for at least 5 minutes
First time after
50 operating hours
Contact dealer/service dpt.
1. Dismount HP hose from the machine.
2. Fill the suction hose with water and connect to High
Pressure Washer (Item no. 6400000)
3. Mount suction hose with a hose clamp on the pump
inlet.
4. Turn main switch to "I" for a few seconds. Repeat
turning main switch on and off several times until
water comes out of pump.
5. Mount the HP hose, spray handle and lance.
6. Turn main switch to "I".
7. Unlock the spray handle and activate it several times
until water coming out without air.
Remedy
hours or more;
sponge or replace it by a new one
Every 200
operating hours
Contact dealer/service dpt.
Item number
61369
Max length 5 mtr
6400000
As required
A1.1
Original instructions
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