STIHL TS 460 32
5.5.2 Pressure Test
- Connect tester's pressure
hose to nipple on test flange.
- Close the vent screw on
the rubber bulb.
- Use rubber bulb to pump air
into the crankcase until the
gauge indicates a pressure of
0.5 bar. If this pressure
remains constant for at least
20 seconds, the crankcase is
airtight.
However, if the indicated pressure
drops, the leak must be located
and the faulty part replaced.
Note: To find a leak, coat the
suspect area with oil and
pressurize the crankcase again.
Bubbles will appear if a leak exists.
- Carry out the vacuum test,
see 5.5.3.
- After finishing the test, open
the vent screw and
disconnect the hose.
- Remove the test flange and
refit the carburetor, see 10.3.
- Loosen mounting screws
on exhaust muffler and
pull out sealing plate.
- Insert outer mounting screws
and lock washers and tighten
all mounting screws to 10.0 Nm.
Top:
Tester's pressure hose fitted
on test flange nipple
Bottom:
Closing the vent screw
Pressure testin
the crankcase
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