Fixed Jet; Pump Diaphragm - Stihl MS 192 T Manual

14.3.3 Fixed Jet

1
– Remove the metering
diaphragm, b 14.3.1
: Unscrew the fixed jet (1) with a
suitable screwdriver.
Take care not to damage the jet.
– Examine the fixed jet and replace
it if necessary.
– Reassemble parts in reverse
order.
MS 192 T

14.3.4 Pump Diaphragm

– Remove the carburetor, b 14.2
: Remove the screw (arrow).
1
: Carefully remove the end
cover (1).
: Carefully remove the gasket with
pump diaphragm from the
carburetor body.
1 2
: Carefully separate the pump
diaphragm (1) and gasket (2).
The diaphragm material is
subjected to continuous alternating
stresses and eventually shows
signs of fatigue. In other words, the
diaphragm distorts and swells and
must be replaced.
– Examine the pump diaphragm for
signs of damage and wear,
replace the gasket.
– Inspect the fuel strainer for
contamination and damage,
clean or replace it if necessary.
1
: Pull the fuel strainer (1) out of the
carburetor body with a needle
and clean or replace it.
– Reassemble parts in reverse
order.
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