Part of the Hitachi Parts Manuals.
Tracking down one part number should not take all morning. This 367-page Hitachi EX30-2 parts manual PDF (OEM #P1AE-1-2) is the factory parts catalog for the EX30-2 excavator: exploded views and part numbers for every assembly on the machine. You get parts lists from track frame to boom (frame, counterweight, engine mounts, swing device, pump, travel devices, cylinders, cab and canopy hardware), plus an Equipment Components section that breaks the piston pump, oil motors, and control valves down to individual spools, seals, and springs. Blade variants (long, short, PTMA) and every bucket from the 300mm 0.045 to the 600mm 0.11 get their own exploded views. Order a full seal kit or a single dust seal; the diagram shows exactly what fits. No more eyeballing a worn bushing and hoping the dealer guesses right. Bookmarked by system, so your tablet jumps straight to the right diagram in the shop.
What's Inside This Hitachi EX30-2 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Pipings | |
| Cooling System | Radiator, Radiator Support, Reserve Tank, Oil Cooler Pipings | |
| Engine | Muffler, Engine Control, Engine Control Cable, Lubricate Pipings, Swing Bearing, Piston Pump | |
| Electrical System | Gauge Panel, Electric Parts, Wire Harness, Solenoid Valve | |
| Undercarriage & Travel | Travel Device, Front Idler, Upper Roller, Lower Roller, Rubber Crawler, Crawler Guide, Travel Pipings | |
| PTO | Extra Pipings (PTO) | |
| Hydraulics & 3-Point Hitch | Pump Device, Pump Device Support, Boom Swing Cylinder, Main Pipings, Pilot Pipings, Pilot Pipings (JIS-Type), Pilot Pipings (H-Type), Blade Cylinder, Blade Pipings, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Front Pipings, 012 Way Multi Lever Pipings, 014 Way Multi Lever Pipings, Extra Pipings (Breaker & Crusher) | |
| Loader, Backhoe & Attachments | Swing Device, Swing Post, Long Blade, Short Blade, PTMA Blade, PTMA Blade Frame, Blade Support, Blade Support_1, Blade Support_2, Boom, Boom Support, Bucket 0.045 (JIS94), Bucket 0.055 (JIS94), Bucket 0.08 (JIS94), Bucket 0.09 (JIS94), Bucket 0.11 (Vjis) | |
| Body & Operator Station | Frame, Tank, Console (Canopy), Console (Cab), Console, Canopy, Floor, Seat, Seat Base, Track Frame, Cab, Cab Parts, Cab Ass'Y, Window Washer, Heater, Seat Belt | |
| Decals & Accessories | Tools | |
| Other Components | Counterweight, Protector, Control Lever, Control Pedal, Lever Link Support, Lever Link, Bolt Kit, Adjuster, Track-Link 300G, Rubber Pad, Center Joint, Std. Arm 1, Long Arm 1, Slide Arm, Std. Arm Support, Long Arm Support |
Hitachi EX30-2 Common Problems This Manual Covers
Hitachi EX30-2 track keeps going slack, need the recoil spring adjuster assembly part number
Check the adjuster exploded view on page 162 if your machine runs rubber crawler, or page 164 for steel crawler; the assembly is listed there with cylinder, rod, spring, nut, and seal breakdowns. Order the complete Track Adjuster Recoil Spring Assembly, part #9126850, and verify it against your serial number range in the parts list before purchase.
Manual Section: Adjuster (Rubber Crawler) p. 162Not sure which bucket parts list matches the bucket fitted to the machine
Measure your bucket cutting width first. The 300 mm bucket (0.045 JIS94) is on page 222, the 350 mm on page 224, the 450 mm on page 226, the 520 mm on page 228, and the 600 mm on page 230. Each exploded view lists the bucket assembly, bolts, bosses, plates, and shims with their part numbers.
Manual Section: Bucket 0.045 _Jis94_ (300Mm Wide) p. 222Boom cylinder weeping at the rod, can't identify the correct packing and dust seal part numbers
Check the boom cylinder exploded view on page 232 for the bushing, seal, and dust seal callouts. Internal packing, rings, rod, and head components for all five cylinders (boom, arm, bucket, swing, blade) are broken down in the cylinder section ending on page 367. Match every seal callout to your serial number range in the parts index before ordering.
Manual Section: Boom Cylinder p. 232Slow hydraulics, looking for piston pump internal parts breakdown and seal part numbers
Check the piston pump exploded views on pages 329 and 331. Page 329 covers the pump body, sleeve, rod, choke, O-rings, and plugs; page 331 lists the shaft, bushing, valve plate, piston assembly, and holder. Verify the coupling and oil seal callouts on the pump device support list on page 26 while you have the pump out.
Manual Section: Pump;Piston (1_2) p. 329Blown hydraulic hose between pump and control valve, need the replacement hose part number
Check the main pipings exploded views starting on page 44 and continuing through pages 46, 48, and 50; each hose is called out with its mating adapters, elbows, and O-rings. Return and cooler lines are listed separately in the oil cooler pipings views on pages 34 through 42. Match the routing in the diagram to your hose position, then verify the part number against your serial range.
Manual Section: Main Pipings (1) p. 44Frequently Asked Questions
What are the replacement specifications for the Track Adjuster Recoil Spring Assembly?
The Track Adjuster Recoil Spring Assembly for the rubber crawler is part number 9126850, and for the steel crawler, it is part number 9126849. Both assemblies are listed with a quantity of 2. p. 162
What is the part number for the main frame of the excavator?
The main frame of the excavator is identified by part number 5003568. p. 2
What is the part number for the engine oil filter?
The engine oil filter is identified by part number 4294838. p. 8
What is the part number for the radiator cap?
The radiator cap is identified by part number 4407714. p. 10
What is the part number for the air cleaner element?
The air cleaner element is identified by part number 4357443. p. 16
Is this Hitachi EX30-2 Parts Manual a digital download?
A 367-page Parts Manual in scanned PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Are there any print restrictions on this Hitachi EX30-2 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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