Contents Included In Service Information - Hitachi 4HK1 Workshop Manual

14A-2 Service Information Guide (All)
1.

Contents included in service information

Removal
Includes the removal procedure when repairing parts,
devices, etc.
Installation
Includes the installation procedure when repairing parts,
devices, etc.
Disassembly
Includes the disassembly procedure when overhauling a
unit, assembly part, etc.
Assembly
Includes the assembly procedure when overhauling a
unit, assembly part, etc.
Inspection
Includes inspection items for parts requiring inspection to
ensure continued performance of parts, devices, etc.
Values are listed for parts whose specified values, setting
values, and use conditions have been determined.
Cleaning
Includes the cleaning procedure for parts, devices, etc.
Preparation
Includes the preparatory procedure necessary before
removing parts, devices, etc.
Adjustment
Includes the adjustment procedure if adjustment to the set
or specified values is necessary when performing
assembly or installation.
Measurement
Includes the measurement procedure for determining if
the installation position of parts is correct, etc.
Drain
Includes the draining procedure for oil, etc.
Refill
Includes the refilling procedure for oil, etc.
Air removal
Includes the air removal procedure when air removal is
necessary after changing oil, etc.
Precaution
Includes the maintenance precautions specific to each
item.
Disconnection
Includes the disconnection procedures for wiring, piping,
etc.
Contents included in service information
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Connection
Includes the connection procedures for wiring, piping,
etc.
Writing
Includes the writing procedure necessary when replacing
the ECM or supply pump.
Setting
Includes the setting procedure necessary when replacing
the ECM, etc.
Replacement
Includes the procedure for replacing parts, changing oil,
etc.
Prioritized DTC
Includes DTCs that need to be diagnosed and resolved
before the relevant DTC when multiple DTCs are set.
Diagnosis
Includes the diagnostic procedure for troubleshooting
symptoms.
DTCs are listed in order of priority.
Repair verification
Includes the procedure for verifying resolution of the
symptom by using numerical values, etc., other than the
verification that DTCs are cleared.
Functional description
Includes the detailed functional description related to the
functional inspection.
Symptom description
Includes the detailed symptom descriptions related to a
diagnosis by symptom.
DTC description
Includes the circuit description related to DTCs.
Setting conditions
Includes the conditions and the judgment conditions for
the ECM, etc. to set DTCs.
Action taken when set
Includes the information related to the control actions
taken by the ECM, etc., when DTCs are set.
Items related to ETM
Items related to the ETM are described in the instructions
on how to view the wiring diagram.
2. Arrows and symbols