Complete workshop repair service manual with electrical wiring diagrams for Hitachi EX120-5 Excavator. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Hitachi EX120-5 Excavator service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

FILELIST:
T155E00CIR - Hitachi EX120-5 Excavator Electrical Circuit Diagram
EM1E8NA21 - Hitachi EX120-5 Excavator Operator's Manual.pdf
TO155E02 - Hitachi EX120-5 Excavator Technical Manual (Operational Principle).pdf
TT155E02 - Hitachi EX120-5 Excavator Technical Manual (Troubleshooting).pdf
W155E01 - Hitachi EX120-5 Excavator Workshop Manual.pdf

EXCERPT:
UNDERCARRIAGE / Front Idler
REMOVE AND INSTALL FRONT IDLER
Removal
Before removing the front idler, the tracks must be removed first. For removal and installation of the tracks, refer to “Remove and Install Tracks” section.
In this section, the procedure starts on the premise that the tracks has already been removed.
CAUTION: Front idler weight: 84 kg (185 lb)
1. Slide the front idler forward, using a pry bar.
2. Attach the front idler to a hoist, then remove the front idler (1) from track frame (3).
3. To keep front idler (1) for a time, place it on blocks as shown.
Installation
1. Attach front idler (1) to a hoist, then install it to track frame (3).
Apply a film of grease to the sliding surface between track frame (3) and bearing (2).
...