User Guide
 English 17
1 Check battery terminals for oxidation
2 Check battery connections
3 Check current-carrying cables and con-
tacts for damage and oxidation
4 Check cable connections on the elec-
tronic control circuits
5 Check acid level in the battery(only for 
low-maintenance batteries)
6 Measure the voltage of the battery cells 
when the suction motor is running (vol-
atge difference max 0.05 V)
7 Check driving operation: forwards, 
backwards
8 Check action of the parking brake on 
the drive motor
9 Check function of the brush head: low-
er, raise
10 Check function of the brushes and 
check for wear
11 Check scrubbing pattern
12 Check scraping strips on the cleaning 
head
13 Check setting of the brush contact pres-
sure
14 Check traction belt of the brushes for 
tension and wear
15 Check rubber strips for wear and adjust-
ment
16 Check suction hose for leaks
17 Check water hoses for leaks
18 Check seal(s) on the tank lid(s)
19 Check function of the water metering 
valve
20 Clean fluff strainer
21 Check function of the suction motor/
suction beam (check after-running time)
22 Check and clean water filter (recycling 
option)
23 Check and clean fresh water filter
24 Check fresh water/recycling water 
change-over valve (optional)
25 Check proper functioning of seat con-
tact switch 
- Key-operated switch to position ”1”
- Select direction of movement
- The seat must remain free
- Press down the drive pedal slightly
Release the drive pedal immediately if 
the unit moves. Shut down the unit, call 
customer service
26 Check fuse F5 ”Emergency Stop mode”
1 Check carbon brushes and brush drive 
for wear, change carbon brushes if nec-
essary
Only for authorised technicians!
Maintenance procedures
Maintenance procedures every 100 op-
erating hours
Maintenance work every 500 operating 
hours










