Fill Fuel Tank; Open Shroud; Add Scale Inhibitor - Stihl RE 661 Gebrauchsanleitung

Fill fuel tank

Unsuitable fuels can be
dangerous.
The tank may only be filled when the
heat exchanger is cold.
Fuel oil and diesel oil begin to congeal
due to the separation of paraffin at
temperatures near freezing point. This
can cause problems when starting the
burner.
To avoid such problems:
Add anti-congealant to the fuel as
N
directed by the manufacturer
Bio-diesel oil must comply with the
DIN 51606 standard.
Organic bio-diesel oil may cause the
burner to malfunction after prolonged
storage, in the presence of extreme
temperatures or if transported
incorrectly.
Open the cap (1)
N
Fill with fuel oil grade EL or diesel oil
N
as defined by DIN 51603. Organic
bio-diesel oil to DIN 51606 may also
be used.
RE 661, RE 661 PLUS, RE 961 PLUS

Open shroud

Open shroud
Turn the screw (1)
N
counterclockwise until the shroud
can be swung upward
Pull the grip (2) in the direction of
N
the arrow to open the shroud
Open cover
Swing cover up only when the shroud is
open.
Turn the knob (1) counterclockwise
N
until the cover can be swung
upward
Pull the grip (2) in the direction of
N
the arrow to open the cover

Add scale inhibitor

Under normal operating conditions it is
not necessary to descale the machine if
STIHL scale inhibitor is used
consistently STIHL scale inhibitor is
specially designed for
STIHL detergents.
Mixing STIHL scale inhibitor with
water
Measure the water hardness or
N
contact your water supply company
to establish the water hardness
range
Depending on water hardness – see
table:
Mix scale inhibitor at a ratio of A : B
N
with clean water – maximum
capacity of the storage tank = 1 l
– A = scale inhibitor
– B = water
Unit water Hardness
hardness range
°dH < = 12
> 12
English
Mixing ratio
(A : B)
1 : 1
undiluted
43