Thermo King SB-190 30, Manual

Page: 58 / 119

Engine Maintenance (Rev. 12/03)
48
4. Install the pump in the engine, lining up the “O” with
the timing mark cast into the access hole.
5. Install and torque the injection pump mounting bolts.
6. Remove the 8 mm bolt located at the back of the injec-
tion pump in the middle of the injection lines. Install
the special dial indicator, P/N 204-589 in its place.
Make sure the adapter bottoms out tightly on the pump
housing. Insert the dial indicator into the adapter until
the dial indicator contacts the pump plunger. Preload
the dial indicator at least 2.0 mm (0.08 in.) and lock the
dial indicator in place by tightening the locking collar.
Dial Indicator Installation
1. Timing Mark
Injection Pump Timing Mark
1
7. Rotate the engine backwards, counterclockwise from
the front, to approximately 89 mm (3.5 in.) from the TC
mark on the flywheel.
8. Adjust the dial indicator to zero. The pump plunger
should be at the bottom of its stroke. To check this,
rotate the engine back and forth no more than 13 mm
(0.5 in.). The dial indicator should stay at zero.
9. Rotate the engine forward, clockwise from the front, to
the injection timing mark.
NOTE: The injection timing mark is a line scribed in
the flywheel approximately 35 mm (1-3/8 in.) from the
TC mark. The injection timing mark has no identifi-
cation markings.
10. The dial indicator should now show the pump plunger
is at 0.5 mm (0.02 in.) from the bottom of its stroke and
ready to inject fuel.
11. If the timing position is not correct, loosen the three
bolts on the front flange of the pump.
12. If the dial indicator shows a figure larger than 0.5 mm
(0.02 in.), rotate the top of the pump away from the
engine until the dial indicator reads the correct value. A
smaller figure requires the pump be turned in towards
the engine until the correct value is reached. Tighten
the three bolts and lock the pump in position.
13. Perform a final check by turning the engine backwards,
counterclockwise from the front, beyond the injection
timing mark and then clockwise back to the injection
timing mark. The dial indicator should now read
0.5 mm (0.02 in.). Slight adjustments may be neces-
sary.
14. Remove the dial indicator and replace the timing bolt.