![Hitachi EX27U Illustrated Parts List Manual [Excavator]](https://youfixthis.com/wp-content/uploads/2019/12/D0A1D0BAD180D0B8D0BDD188D0BED182-2015-02-02-11.24.27-300x300.png)
Part of the Hitachi Parts Manuals.
All 330 pages of this Hitachi EX25-2 Parts Catalog PDF focus on one job: putting the correct factory part number in your hand for every assembly on the EX25-2 excavator. You get exploded views paired with full parts lists for the whole machine: frame, engine, swing device, travel device, main and pilot pipings, control valves, boom, arm, blade, and every cylinder down to individual seals, bushings, and O-rings. Cab and canopy versions are both covered, right down to glass, weather strips, and wire harnesses. Ordering a bucket? The catalog separates the 300mm, 350mm, 480mm, and 550mm JIS94 buckets so you match the exact tooth, cutter, and shim. No more paying for the wrong seal kit twice. Bookmarked by section; open it on any device, find the diagram, and read the part number straight off the exploded view.
What's Inside This Hitachi EX25-2 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Pipings | |
| Cooling System | Radiator, Radiator Support, Reserve Tank | |
| Engine | Muffler, Oil Cooler Pipings, Engine Control, Engine Control Cable, Lubricate Pipings, Swing Bearing, Pump;Piston | |
| Electrical System | Gauge Panel, Wire Harness, Valve;Solenoid | |
| PTO | Extra Pipings _PTO_ | |
| Hydraulics & 3-Point Hitch | Pump Device, Boom Swing Cylinder, Blade Cylinder, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Valve;Control, Valve;Pilot, Valve;Lock | |
| Loader, Backhoe & Attachments | Swing Device, Swing Post, Boom, Boom Support, Bucket 0.04 _Jis94_, Bucket 0.045 _Jis94_, Bucket 0.08 _Jis94_, Bucket 0.085 _Jis94_, Attachment Pedal, Cyl.;Boom, Cyl.;Bucket | |
| Body & Operator Station | Frame, Tank, Console _Canopy_, Console _Cab_, Canopy, Floor, Seat, Seat Base, Cover, Track Frame, Cab, Cab Parts, Cab Ass'Y, Seat Belt, Name-Plate _Canopy_, Name-Plate _Cab_ | |
| Decals & Accessories | Tools | |
| Other Components | Counterweight, Protector, Main Pipings, Console, Control Lever, Control Pedal, Lever Link Support, Lever Link, Pilot Pipings, Pilot Pipings _Jis-Type_, Pilot Pipings _H-Type_, Electric Parts, Bolt Kit, Travel Device, Front Idler, Adjuster |
Hitachi EX25-2 Common Problems This Manual Covers
Hitachi EX25-2 upperstructure frame bushings and pins worn, need part numbers before teardown
Check the Frame parts list on page 2; it itemizes the bushings, stoppers, covers, brackets, and pins with quantities per assembly. Measure each worn bushing bore in millimeters with calipers and match it to the exploded view callouts, then verify your serial number range before ordering replacement pins.
Manual Section: Frame p. 2Counterweight mounting bolts stretched or damaged during removal, unsure which hardware to reorder
Check the Counterweight parts list on page 4 for the bolt and washer part numbers, then cross-check the Bolt Kit section on page 154 for matching spares. Measure bolt shank length and thread pitch in millimeters against a new fastener; never reuse stretched bolts on a counterweight mount.
Manual Section: Counterweight p. 4Boom swing cylinder weeping at the rod, need the correct dust seal and O-rings
Check the Boom Swing Cylinder exploded view on page 30, which calls out the elbow O-rings, bushing, and dust seal as separate line items. Measure the rod diameter in millimeters with calipers and match it to the parts list callouts, and order the elbow O-rings at the same time since they crack once disturbed.
Manual Section: Boom Swing Cylinder p. 30Bucket teeth and side cutters worn out, four bucket sizes listed with different part numbers
Verify your bucket width across the cutting edge before ordering anything: the manual lists 300 mm (page 202), 350 mm (page 204), 480 mm (page 206), and 550 mm (page 208) buckets, each with its own points, bosses, shims, and cutters. Pull tooth and cutter numbers from the matching page only.
Manual Section: Bucket 0.04 _Jis94_ (300Mm Wide) p. 202Track adjuster leaking grease and crawler running loose, two adjuster parts lists in the book
Check which undercarriage you have first: the Adjuster (Rubber Crawler) list is on page 162 and the Adjuster (Steel Crawler) list on page 164, each with its own cylinder, rod, O-rings, spring, and plug. Measure the crawler shoe width in millimeters to confirm; the rubber shoe assembly itself is on page 168.
Manual Section: Adjuster (Rubber Crawler) p. 162Protector hardware missing after front-end work, need bolt, washer and nut part numbers
Check the Protector parts list on page 6; it covers the bolts, washers, and nuts for the guard assembly. Measure the bolt diameter and length in millimeters against the callout table before ordering, and pull spare hardware numbers from the Bolt Kit on page 154 so one fastener does not hold up reassembly.
Manual Section: Protector p. 6Frequently Asked Questions
What are the replacement specifications for upperstructure frame components?
The main frame (part number 5004425) is a single unit. For specific frame-related components, such as the swing bearing, the part number is 4340329, and it includes a seal (part number 4345374). p. 2
What are the replacement specifications for the counterweight?
The counterweight (part number 1020134) is secured with two bolts (part number 4353694) and two washers (part number J222018). p. 4
What is the part number for the main hydraulic pump on the EX25-2?
The main piston pump for the EX25-2 is part number 4331670. p. 24
What is the part number for the engine fan belt?
The fan belt for the engine is part number 4352388. p. 8
What is the part number for the engine oil filter?
The engine oil filter is part number 4294838. p. 8
How will I receive this Hitachi EX25-2 Parts Catalog?
Instant PDF download. You get the full 330-page scanned Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print this Hitachi EX25-2 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Reviews
There are no reviews yet.