Instruction Manual
Table Of Contents
- STIHL HS 45
- 1 Guide to Using this Manual
- 2 Safety Precautions and Working Techniques
- 3 Using the Unit
- 4 Fuel
- 5 Fueling
- 6 Starting / Stopping the Engine
- 7 Operating Instructions
- 8 Cleaning the Air Filter
- 9 Adjusting the Carburetor
- 10 Spark Plug
- 11 Engine Running Behavior
- 12 Lubricating the Gearbox
- 13 Storing the Machine
- 14 Sharpening Instructions
- 15 Inspections and Maintenance by Dealer
- 16 Maintenance and Care
- 17 Minimize Wear and Avoid Damage
- 18 Main Parts
- 19 Specifications
- 20 Maintenance and Repairs
- 21 Disposal
- 22 EC Declaration of Conformity
► Press the manual fuel pump bulb (6) at least
five times – even if the bulb is filled with fuel.
► Now start the engine.
7 Operating Instructions
7.1 During break-in period
A factory-new machine should not be run at high
revs (full throttle off load) for the first three tank
fillings. This avoids unnecessary high loads dur‐
ing the break-in period. As all moving parts have
to bed in during the break-in period, the frictional
resistances in the engine are greater during this
period. The engine develops its maximum power
after about 5 to 15 tank fillings.
7.2 During Operation
After a long period of full throttle operation, allow
the engine to run for a short while at idle speed
so that engine heat can be dissipated by the flow
of cooling air. This protects engine-mounted
components (ignition, carburetor) from thermal
overload.
7.3 After Finishing Work
Storing for a short period: Wait for the engine to
cool down. Empty the fuel tank and keep the
machine in a dry place, well away from sources
of ignition, until you need it again. For longer out-
of-service periods – see "Storing the Machine".
8 Cleaning the Air Filter
8.1 If there is a noticeable loss of
engine power
253BA008 KN
1
2
►
Move the choke lever to l.
► Press in the tab (1) and swing the filter
cover (2) down.
► Clean away loose dirt from around the filter.
5
2
3
253BA024 KN
4
► Remove the foam element (3) and felt element
(4).
► Wash the foam element in a clean, non-flam‐
mable solution (e.g. soapy water) and then
dry.
► Fit a new felt element. As a temporary meas‐
ure you can knock it out on the palm of your
hand or blow it out with compressed air. Do
not wash.
► Replace any damaged parts.
7 Operating Instructions English
0458-253-0121-D 11