Checking The Oil Level; Oil Change - Stihl RE 521 Gebrauchsanleitung

The old fuel filter and the liquid used for
cleaning must be disposed of in
accordance with regulations and without
harming the environment!
Clean flame sensor
A display appears on the control panel
when the flame sensor is filled with soot
(see "When the LEDs on the control
panel... ")
Undo screw (1) and remove flame
N
sensor
Carefully clean the flame sensor (2)
N
with a soft cloth
Installation: Insert the flame sensor
N
to the mark; the mark and arrow
must point upward
Clean ventilation openings
The machine must be kept clean so that
cooling air can flow freely through the
openings in the machine.
Lubricate connections
Lubricate the connections on the high-
pressure hose as needed
RE 521, RE 551 PLUS, RE 581, RE 581 PLUS

Checking the oil level

Check the oil level weekly.
If the pump oil is gray or white – change
the oil.
Place the machine on a flat
N
horizontal surface
Open shroud – see "Open shroud"
N
RE 521
Remove dipstick
N
Check whether the oil level is
N
between the "min" and "max" marks
If necessary, add oil (SAE 15 W 40
N
– see "Oil change")
RE 551 PLUS, RE 581, RE 581 PLUS
Check that the oil is level with the
N
mark (2) when cold.
If necessary, add oil (SAE 15 W 40
N
– see "Oil change")

Oil change

First oil change after 50 hours of
operation, then every six months or
every 500 hours of operation.
Let the machine warm up
N
Open shroud – see "Open shroud"
N
1
Place suitable container under the
N
oil drain plug (1)
Unscrew and remove the oil drain
N
plug (1) and through the opening in
the baseplate of the high-pressure
cleaner
Drain oil into container
N
Check the seal on the oil drain plug,
N
refit and tighten down the screw
Waste oil must be disposed of in
N
accordance with the statutory
regulations.
English
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