Stihl RE 521, Instruction Manual

Page: 57 / 284

RE 521, RE 551 PLUS, RE 581, RE 581 PLUS
English
55
Maintenance and Care
The following maintenance intervals apply in normal operating conditions. The spec -
ified intervals must be shortened accordingly for longer daily working hours. If the
machine is only used occasionally, the intervals can be extended accordingly.
Whe
never ta
nk is refille
d
at
the
en
d
of
work
and/
or
da
ily
weekly
or
every
40
hour
s
of
op
erat
ion
mont
hly
qu
art
erly
or
every 2
00
hour
s
of
opera
tio
n
every
six mon
ths
or
every
50
0
hours
of
op
erat
ion
if fau
lty
if d
amage
d
as
requ
ired
Complete machine
Visual inspection (condition, leaks) X
clean X X
Oil level of the high-pressure pump check X
Oil of the high-pressure pump change X
Connectors on high-pressure hose
clean X X
grease X
Plug-type coupling of the spray lance and
the coupling sleeve of the spray gun
clean X X
Clean ignition system, transformer, cable,
electrodes, flame sensor (if present)
clean
1)
X
Fuel tank clean
1)
X
Replace
clean X X
replace X X
Solenoid valve clean
1)
X
Fuel nozzles replace X
Screens in water tank / high-pressure inlet clean X
High pressure nozzle
clean X
replace X
Ventilation openings clean X
Heat exchanger clean
1)
X
Descale
1) 2)
When working pressure in hot-water operation is exceeded by more than 10 bar
1)
This work may only be undertaken by a servicing dealer – STIHL recommends STIHL servicing dealers
2)
Under normal operating conditions it is not necessary to descale the machine if STIHL scale inhibitor is used consistently