Right-Bank Linkage - Overall View; Fixed-Length Control Links Of Right And Left Banks; Left Bank Variable-Length Control Link - Mitsubishi S12A2 Service Manual

Control shaft
If the play of fuel injection pump rack is in excess, fuel can not be stopped even when the governor brings the link to
engine stop position, and engine over-running may results.
Common
(1) Install the fixed-length (304±1.0 mm [12±0.04 in.])
control link A-1 in between the fuel injection pump
control rack and the control lever on the right bank.
PSG type governor spec
(2) Adjust the variable-length control link B-1 on the left
bank to 95.5 mm [3.76 in.], and tentatively tighten it.
Then fix it to the fixed-length (208.5±1.0 mm
[8.21±0.04 in.]) control link A-2.
(3) Assemble the variable-length control link B-1 into the
stop lever having a serrated hole. Install the fixed-
length (208.5±1.0 mm [8.21±0.04 in.]) control link A-2
to the fuel injection pump control rack.
Check that the fuel injection pump racks of both banks
are at the no-injection position, then install the stop
lever together with the spacer and cancel spring to the
serration on the control shaft.
Note: Adjust the engagement lengths even on right and left-
handed threads.
(4) Fine adjust the variable-length control link B-1 for the
left bank so that movement of the fuel injection pump
rack becomes the same on both banks.
Control lever
Fixed length
(304 ± 1.0 mm [11.97 ± 0.0394 in.])control rink A-1
Distance between the end face of fuel injection pump Distance between the end face of fuel injection pump Distance between the end face of fuel injection pump
and the center of hole at control rack end: 78 mm [3.07 in.] and the center of hole at control rack end: 78 mm [3.07 in.] and the center of hole at control rack end: 78 mm [3.07 in.]
Control rack position 「0」: 67.5mm [2.99 in.] Control rack position 「0」: 67.5mm [2.99 in.] Control rack position
Play: approx. 2 mm [0.08 in.] Play: approx. 2 mm [0.08 in.] Play: approx. 2 mm [0.08 in.]

Right-bank linkage - Overall view

Left bank fixed length control link
Right bank fixed length control link
Left bank variable length control link
Chapter 8 FUEL SYSTEM
Woodward PSG governor spec
Toho Seisakusho SG4017 actuator spec
Control rack
: 67.5mm [2.99 in.]
208.5 ± 1.0 mm
[8.209 ± 0.039 in.]
Welding
304 ± 1.0 mm [11.97 ± 0.039 in.]
Welding

Fixed-length control links of right and left banks

Left-hand thread
Make the length of engagements even.
Left-hand
thread
Make the length of engagements even.

Left bank variable-length control link

Fuel injection pump
Welding
Right-hand thread
Right-hand
thread
8-39