Minimize Wear And Avoid Damage; Main Parts - Stihl SR 440 Instruction Manual

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22 Minimize Wear and Avoid
Damage
Observing the instructions in this manual helps
reduce the risk of unnecessary wear and dam‐
age to the power tool.
The power tool must be operated, maintained
and stored with the due care and attention
described in this owner's manual.
The user is responsible for all damage caused by
non-observance of the safety precautions, oper‐
ating and maintenance instructions in this man‐
ual. This includes in particular:
– Alterations or modifications to the product not
approved by STIHL.
– Using tools or accessories which are neither
approved or suitable for the product or are of a
poor quality.
– Using the product for purposes for which it
was not designed.
– Using the product for sports or competitive
events.
– Consequential damage caused by continuing
to use the product with defective components.
22.1 Maintenance Work
All the operations described in the "Maintenance
Chart" must be performed on a regular basis. If
these maintenance operations cannot be per‐
formed by the owner, they should be performed
by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
If these maintenance operations are not carried
out as specified, the user assumes responsibility
for any damage that may occur. Among other
parts, this includes:
– Damage to the engine due to neglect or defi‐
cient maintenance (e.g. air and fuel filters),
incorrect carburetor adjustment or inadequate
cleaning of cooling air inlets (intake ports, cyl‐
inder fins).
– Corrosion and other consequential damage
resulting from improper storage.
– Damage to the machine resulting from the use
of poor quality replacement parts.
48

22 Minimize Wear and Avoid Damage

22.2 Parts Subject to Wear and Tear
Some parts of the power tool are subject to nor‐
mal wear and tear even during regular operation
in accordance with instructions and, depending
on the type and duration of use, have to be
replaced in good time. Among other parts, this
includes:
– Filters (air, fuel)
– Rewind starter
– Spark plug
– Damping elements of anti-vibration system

23 Main Parts

1
2
4
5
3
6
10
7
8
9
17
18
16
15
12
11
14
13
1 Container cap
2 Solution container
3 Spark plug boot
4 Carburetor adjusting screws
5 Manual fuel pump
6 Choke knob
7 Starter grip
8 Tank cap
9 Fuel tank
10 Muffler
11 Baffle screen
12 Metering knob
13 Nozzle
14 Blower tube
#
20
23
21
22
19
24
0458-450-8721-C