Table Of Contents - Hitachi NEXT Series Service Manual

Contents
1. GENERAL DESCRIPTION
1.1 Appearance [Air-Cooled] ................................................................................................ 1
1.2 Components [Air-Cooled] ............................................................................................. 2
1.3 Appearance [Water-Cooled] .......................................................................................... 3
1.4 Components [Water-Cooled] .......................................................................................... 4
2. FLOW DIAGRAM
2.1 Flow Diagram [Air-Cooled] ....................................................................................
2.2 Flow Diagram [Water-Cooled] ..............................................................................
2.3 Capacity Control System Standard ... ........................................................................
3. MAINTENANCE
3.1 Standard Maintenance Schedule ................................................................................. 13
3.2 Maintenance Schedule for Oil Mist Remover ... ............................................................... 17
4. HOW TO SERVICE THE AIR COMPRESSOR
4.1 Replacement of Air Intake Filter (Bi-Annually) ............................................................... 18
4.2 Condensate drain port (Intercooler/Aftercooler) (Daily check)
Clean the strainer elements (Bi-Annually) & Orifices (Annually) ....................................... 19
4.3 Lubricating oil Replacement (Annually) ........................................................................ 23
4.4 Cleaning of Oil Strainer (Primary Side) (Bi-Annually) ...................................................... 24
4.5 Replacement of Oil Filter (Secondary Side) (Annually) ................................................... 24
4.6 Operation Check of Air Relief Valve (Bi-Annually) ... ......................................................... 25
4.7 Cleaning of Control Line Filter (Bi-Annually) [Fixed speed type] ....................................... 25
4.8 Clean Cooler (Annually) ............................................................................................. 26
4.9 Replacement of Check Valve (2-Yearly) ........................................................................ 27
4.10 Main Motor Greasing ................................................................................................ 28
4.11 Maintenance of Main Motor ....................................................................................... 29
4.12 Maintenance of Oil Mist Remover................................................................................. 30
4.13 Maintenance of Cooling fan and cooling fan motor ...................................................... 31
4.14 The procedure to attach the motor cover [Water-Cooled] ................................................ 32
4.15 Maintenance of Oil Pump .......................................................................................... 34
4.16 Maintenance of Suction Throttle Valve ... ........................................................................ 37
4.17 Oil Pump motor and Airend removal ........................................................................... 43
4.18 Oil casing and Gear casing removal ... ........................................................................... 45
4.19 Main motor removal ... ................................................................................................ 46
4.20 Replace the Bushing ................................................................................................... 48
4.21 Pinion Gear Replacement Procedure ........................................................................... 52
4.22 Battery Replacement (6-Yearly) .................................................................................... 54
4.23 Inspection of Thermistor and Pressure Sensor ............................................................... 55
5. PARTS LIST .........................................................................................................
5
7
10
57