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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
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49
50
Speed governor - Limiting speed governor
With applications for the automotive sector the regulator spring C
fig. 45 is replaced by a device (plunger barrel) that only enables a
constant speed at the minimum and maximum rpm rating.
Components:
1 Nut
2 Idle speed spring
3 Max. speed spring
4 Case
5 Register
6 Spring ring
7 Actuation rod
Note: There are six maximum springs in a different colours, to
distinguish them from the six respective adjustments.
Red color for ...................... 3000 giri/1'
No color ............................. 3200 giri/1'
Black .................................. 3600 giri/1'
Orange ............................... 3750 giri/1'
White.................................. 4200 giri/1'
Green ................................. 4300 giri/1'.
Brown ................................. 4500 giri/1'
Speed governor - Reassembly
Caution – Warning
While reassembling, check the integrity of the components
and check that they operate correctly.
Bad operation of the speed governor can cause serious
damage to the engine and to people being near to it.
Remount in reverse order to Fig. 44.
When inserting the bearing in the camshaft, do it so that the four
blocks enter opened, so that they can receive the hose and close
over it.
Check the integrity of the sealing rings of the cover.
Tighten the three screws at a torque of 10 Nm.
Note: With the speed governor mounted the camshaft axial
clearance should be zero.
Disassembly / Reassembly
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