With the hook still pulled toward the rear of the
governor, loosen collet (2) and adjust the
revolution counter on the dial indicator to zero.
Tighten the collet just enough to hold the
indicator in this position. Move the dial of the
indicator to get alignment of the pointer and zero.
Remove timing pin (10).
Turn rod (13) out of 6V7941 Compressor
Assembly (15) until knob (14) is 25.4 mm (1.0
in.) from the compressor body. Install 6V7941
Compressor Assembly (15) in the hole plug (9)
was removed from.
NOTE: The 6V7941 Compressor Assembly is used
to compress the overfueling spring. The overfueling
spring must be compressed to get an accurate fuel
6V7941 COMPRESSOR ASSEMBLY
13. Rod. 14. Knob.
COMPRESSOR ASSEMBLY INSTALLED
15. 6V7941 Compressor Assembly.
Move the governor control lever to the FUEL
OFF position. Use two SI1614 Bolts and install
6V2017 Governor Adjustment Tool (16). Be
sure the end of the tool is behind the governor
linkage, and that the flange is completely against
the governor housing (the filter screen may have
to be removed).
TESTING AND ADJUSTING
NOTE: If it is expected to be necessary to change the
setting, install the outer part of 6V2106 Rack Adjusting
Tool (17) along the left side of the 6V2017 Adjusting Tool
when the 6V2017 Adjusting Tool is installed.
ADJUSTING TOOL INSTALLED
16. 6V2017 Governor Adjustment Tool.
Move the governor control to the FULL LOAD
position and hold in this position.
Turn the overfueling spring compressor rod IN
(clockwise) until the indicator hands move
Slowly turn the rod OUT (counterclockwise) until
the indicator hand stops moving. This is the AIR
FUEL RATIO CONTROL SETTING.
NOTE: There will be a small initial movement of the dial
indicator hands, then. they will stop moving while the rod
is turned out for another 1I / turns. Now the indicator
hands will begin to move again and will follow the turning
of the rod until the setting is reached. It is important that
the rod be turned slowly so that the rack can follow the
Make reference to the FUEL SETTING AND
RELATED INFORMATION FICHE for the correct
air fuel ratio setting and compare to the dial
GOVERNOR LINKAGE ADJUSTMENT
17. 6V2106 Rack Adjustment Tool Group.