SERVICE MANUAL
ROBERT BOSCH MODEL MW INJECTION PUMP
Section 11
Do not allow negative wire lead to contact "aux"
terminal on solenoid. This will cause fuse or solenoid
to burn out.
A suitable slow blow fuse is marketed by Little Fuse
and is identified as 313 3AG 8A Slo-Blo.
7.
Lift shutoff lever and screw adjusting rod thread into
rod end until shutoff lever just stops its downward
movement.
8.
Turn adjusting rod upper end Two Full Turns in
opposite direction (raising shutoff lever) and tighten
locknut against upper rod end.
9.
De-energize solenoid.
Assembly and adjusting steps 1 through 8 will
ensure that solenoid plunger will be fully seated at
bottom of stroke and Internal injection pump shutoff
lever will not contact internal housing stop tab nor
interfere with injection pump fuel rack during "excess
fuel" starting conditions. Shutoff stop screw has
been Factory Preset limiting solenoid plunger total
travel to approximately 1.000 inch from bottom of
stroke (run position) to end of stroke (shutoff
position).
Do not adjust shutoff lever stop screw. If stop screw
position is changed, injection pump must be
removed and stop screw position set on the test
bench. When stop screw is improperly adjusted,
control rack may not move sufficiently to stop fuel
delivery or may damage internal injection’ pump rack
stop.
10. Cycle solenoid 34 times to assure proper operation.
After cycling solenoid, make sure solenoid rubber
boot is properly seated. With solenoid energized,
there should be no chatter.
CAUTION
Do not cycle more than 6 times within one
minute. additional cycling may cause pull-in
coil overheating resulting in burnout.
FUEL FILTER HEADER (Figure 38)
Bleeding Air From Fuel System:
1.
Loosen supply hose by loosening connector at elbow
located at top of header (Figure 39).
2.
Operate hand priming pump until a steady fuel flow
emerges.
3.
Reconnect tube to elbow and operate engine at idle
for 10 minutes.
FUEL FILTER HEADER (TOP VIEW)
(IH PART NO. 676143C2
Figure 38. - Fuel Filter Header
Figure 39. - Fuel Filter Header
1.
Supply hose
2.
Connector
3.
Elbow, 90°-1/4 NPTF
4.
Hand priming pump
CGES-185-3
PRINTED IN UNITED STATES OF AMERICA
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