Stiga TRE 0801 - Page 45

Release 00 - 03/2018
Engine TRE 0701-TRE 0702-TRE 0801
pag. 45
Service manual
11. ENGINE BLOCK - Overhauling internal parts
B
(EX)
(IN)
14
15
5 -
Measure the cams (B), checking for wear
and tear. The value must not be lower than 32.15
mm IN (YI) and 32.35 mm EX (YE).
6 - Check the regular movement of the pressure
reducer (14) and the efciency of the spring (15);
the whole group must always be replaced in the
case of breakage or irregular operation of the
pressure reducer.
7 - Check that the irregolar centrifugal (16) that are
not present ruptures of the lubrication pallets.
8 - Turn the governor’s gears quickly and check that
the counterweights (17) expand correctly, causing
the pin (18) to be moved axially.
9 - In the case of breakage or irregular operation
of the counterweights assembly; remove the cen-
trifugal assembly, taking care of the grommet (19)
and retaining the shim washer (20).
10 - After this verication, remount the centrifugal
governor, ensuring that the washer (20) is positioned
correctly at the base of the governor.
11 - Position the governor, t the grommet (19)
inside and insert the pin (18) between the tabs of
the centrifugal assembly, pressing with force so as
to block the governor system.
12 - Before remounting the oil pump, perform the
following measurements:
-
Using a gauge, measure the diameter
of the pump seats. The value must not exceed
29.21mm.
16
17
18
19
20
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