C-103
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
Points to consider in field on pumps fitted with
IKSB
1. It is advised not to attempt to remove the IKSB
unit or loosen it for priming purposes under any
circumstances. Bleeder screw in the distributor
head can be loosened to remove air trapped in
FIP.
2. Ensure that 12V is connected to IKSB unit when
abnormal smoke is seen in the field during cold
operation.
3. When the IKSB unit is energized / de- energized,
marginal difference in noise may be observed due
to advance in cold and retardation in hot
conditions – This is absolutely normal.
4. Do not attempt to handle the pump / lift it holding
the IKSB unit.
5. When the vehicle fails to start in cold condition,
check if the 12V is connected to IKSB solenoid.
Check if battery voltage is 12V.
6. During hand priming using filter ensure that the
ignition key is OFF, bleeder screw in filter is loose.
DO NOT attempt to prime the system with ignition
key ON as it may impart additional resistance to
filter hand primer. As a last resort bleeder screw
in the pump (center of DV ports) may be opened
for priming purposes.
7. In case of suspected problem with the pump,
the pump is to be handed over to the authorized
BOSCH dealer in undisturbed condition,
IKSB should be in undisturbed condition.
8. IKSB unit of one pump should in no circumstance
be replaced on another pump without calibration
of the pump.
Fuel System
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