ENGINE
77
Avoid cleaning of the injectors, even with an
ultrasonic cleaner.
The packaging for the spare parts should be
opened just before use. The special caps
must not be removed until the final
connection/installation. The plugs and bags
must be discarded after use.
Any part dropped must not be used. Before
installing the injector, it is essential to ensure
that the wells are clean.
Before connecting the harness, check the
cleanliness of the connectors, particularly any
fluids near electrical connections.
Before removing any CR components,
vacuum external area with the help of vacuum
cleaner to avoid possible contamination.
Don’ts
HP pipes are one time use only avoid
unnecessary removal and do not reuse.
Do not leave open inlets and outlets of CR
components– Cap them immediately
Flushing of CR components should be
avoided.
Do not remove battery, sensor & Actuator
connections when key is ON
Do not spray water on the ECU
Sensor connections should not be removed
unnecessarily
HP pipe lines should not be bent and force
should not be applied.
Failed or broken CR components should not
be used, leakage may cause injury
Don’t let ECU body touch any metallic part
while the ECU is powered ON (Ignition key
switched “ON”).
Never try to dismantle any engine part while
the ECU is powered ON.
Don’t keep any sensor branch hanging /loose
while assembly. Fix them properly using clips
provided in W/H.
Don’t try to crank the engine without
connecting any of the sensors.
Don’t remove any sensor /injector connector
once fitted and locked properly.
Do not run the vehicle with ‘MIL’ lamp ON.
Do not remove back-leak pipes unless the
Injectors have to be removed.
Do not bleed the air by removing or loosening
the HP pipes.
Do not start the vehicle if battery voltage is
low.
The ECU gets tripped if the battery voltage is
below 6 volts. Replace the battery and then
start the engine.
Do not remove the rail unnecessarily. The rail
can perform maximum 10 assembly/
disassembly cycles of pipes without any
damage.
Do not clean the Injectors with pressurized
water. The injector is not designed to be
washed with pressurized water.
Do not clean the HP pipes with compressed
air, oil or water. Cleaning may dirt HP pipes
and CR system.
Do not use any failed/ broken water
Sedimenter /fuel filters, even if there’s no
external sign of damage.
Do’s
Monitor battery voltage continuously –
recharge battery if voltage drops below 10
Volts
Drain water from Sedimenter / filter at regular
intervals
Fix the rubber cover to the ECU to prevent
dust / moisture entry inside ECU.
EMS W/H to be properly routed as specified
using clamps / clips and brackets.
Do check for any faults /malfunctioning in the
system using diagnostics tool before cranking
the engine
(after any repair).
Do fix ECU connector branch properly while
transporting engine.
If engine does not start check the respective
uses related to CR components.
When Injectors are replaced/Changed Injector
IC values must be loaded correctly as per
cylinder order.
Plug the port of Common rail system
components whenever any pipe connections
are removed.
If the fuel tank is dry
(no diesel)
fill diesel and
use priming pump to suck the diesel till fuel
filter.
Tighten the mounting nuts / cap nuts etc. only
to the specified torque values.
Always remove the Injectors before
dismantling the cylinder head. This is to avoid
damage to the injector nozzle tips which
protrude out of cylinder head. In case of HP
pump removal handle the pump with proper
care to avoid any damage to inlet pipe, venturi
and connectors.




